bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigación de mercado y diseño de estrategias de marketing para comercializar productos derivados de la pitahaya
Authors: Viteri-Rade Layla , Mogollón-Alvarado Irma , Quiñonez-Mercado Helen , Caicedo-Tovar Jubely
Published: November 2024

El objetivo principal de este artículo se basó en evaluar la viabilidad comercial de productos derivados de la pitahaya, elaborados mediante las técnicas de liofilización y despulpado, en el mercado local, a través de una metodología mixta, de carácter exploratorio descriptivo, con una muestra de 384 individuos a los cuales se le aplicaron encuestas y entrevistas pudiendo determinar que aunque la pitahaya es conocida por la gran mayoría, el consumo de productos derivados sigue siendo relativamente bajo. De hecho, es una oportunidad ideal para diversificar la gama de productos ofertada. Los expertos entrevistados indican que la producción de Pitahaya es altamente sometida a varios desafíos que van desde la plaga, la enfermedad, la competencia desleal entre los exportadores, lo que implica una inestabilidad del precio y la rentabilidad. Finalmente se concluye que los datos demográficos y el consumo revelan un mercado con alto conocimiento de la pitahaya, pero con espacio para aumentar el consumo de derivados, en especial entre jóvenes y mujeres, asimismo, el factor más predominante por las cuales consumir los productos derivados de la pitahaya se inclinan en la salud, bienestar y calidad además que, la pitahaya tiene un alto potencial de mercado, especialmente a nivel internacional, pero enfrenta desafíos significativos como plagas, competencia desleal y fluctuaciones en los precios debido a su estacionalidad
El impacto del branding emocional en el sector de la moda: un enfoque en el consumidor centenial ecuatoriano
Authors: Medina-López Yamileth , Mero-Vera Anggie , Bonisoli Lorenzo
Published: November 2024

La importancia de las marcas radica en su capacidad para establecer conexiones emocionales con los consumidores, por lo que, los estudios de moda abordan aspectos relevamtes como género, clase y cultura, destacando que la moda trasciende la simple vestimenta y refleja cambios sociales. Este estudio investiga la relación entre diversas variables; asi como Brand Experience, Brand Trust, Brand Authenticity, Brand Attachment, Brand Loyalty y Brand Equity en el contexto del consumidor centenial ecuatoriano, buscando identificar qué variable tiene mayor impacto en la fidelización y percepción de marca en relación al enfoque que posee el consumidor centenial ecuatoriano. En consecuencia, dicha investigación posee un estudio empírico, un enfoque cuantitativo y a su vez su alcance de carácter exploratorio y a su vez la técnica a utilizar será la de análisis de resultados SEM-PLS (modelos de ecuaciones estructurales) con la finalidad de determinar cuantas variables influyen positivamente sobre el modelo a estudiar.
Reflexiones sobre la Importancia de una Gobernanza Institucional en el cumplimiento del ODS 3 Bienestar y Salud (Agenda 2030)
Authors: Cedeño-Espinel Jean , Miranda-Pichucho Freddy
Published: November 2024

La investigación tiene como general: Reflexionar sobre la importancia de la gobernanza institucional en el cumplimiento del ODS 3 Bienestar y salud (Agenda 2030); a su además de dos objetivos específicos: Identificar las posturas teóricas sobre gobernanza institucional que dan viabilidad al desarrollo sostenible; y, develar las vertientes establecidas para el alcance del ODS 3 Bienestar y salud (Agenda 2030). El diseño de la metodología ha sido partiendo del paradigma fenomenológico-interpretativo con un enfoque cualitativo y no experimental, configurándose una investigación documental/bibliográfica, se parte de un referente epistémico como lo es la Teoría Fundamentada de la cual se hace uso de procedimientos de matrices axiales, entre las cuales se encuentra la matriz paradigmática, la matriz de que permite identificar el proceso de comparación constante o de saturación teórica (Vinculación de los conceptos con las fases del análisis documental)  y la matriz de categorización (Matriz de hallazgos emergentes), encontrándose en esta última una categoría central que recoge todos los elementos que han surgido a lo largo del proceso de análisis comparativo, siendo esta denominada: Gobernanza de la salud. Un aporte a su conceptualización.
El juego y su influencia en el proceso de aprendizaje de los estudiantes en educación inicial
Authors: Condo-Reyes Edgar , Gómez-Lema Gloria , Balarezo-Balarezo Mayra , Tepán-Pugo Silvia
Published: November 2024

En las últimas décadas, el juego ha sido ampliamente reconocido como un elemento crucial en el desarrollo integral de los niños, especialmente en la educación inicial. Numerosas investigaciones han demostrado que el juego no solo contribuye significativamente al desarrollo cognitivo, sino también al fortalecimiento de competencias socioemocionales, esenciales para el éxito académico y la adaptación social de los estudiantes. El objetivo de este estudio fue analizar las percepciones de los padres sobre el uso del juego en el aprendizaje de los estudiantes en educación inicial en la Unidad Educativa Provincia de Chimborazo, ubicada en la parroquia Pallatanga, Cantón Pallatanga, Provincia de Chimborazo, durante el periodo 2024-2025. Se utilizó un enfoque cuantitativo con un diseño no experimental transversal, encuestando a 20 padres mediante un cuestionario estructurado. Además, los datos fueron analizados estadísticamente utilizando SPSS, garantizando la representatividad y el cumplimiento de normativas éticas. Los resultados revelan que los padres reconocen ampliamente la influencia positiva del juego en el aprendizaje infantil, destacando su capacidad para desarrollar habilidades cognitivas y emocionales. Sin embargo, se identificaron desafíos en la implementación de juegos inclusivos en el aula, lo que sugiere la necesidad de una planificación cuidadosa. Se concluye que, los padres perciben el juego como una herramienta educativa esencial en la educación inicial. No obstante, se deben considerar las limitaciones del estudio, como el tamaño de la muestra y la falta de evaluación directa del rendimiento académico, en futuras investigaciones.
Utilización de Kahoot para el Refuerzo Académico en Matemáticas en Primer año de Bachillerato Técnico
Authors: Guamaní-Pallo Luis , Choloquinga-Choloquinga María , Chiquito-Chilan Rosa
Published: November 2024

Los refuerzos académicos se han convertido en herramientas importantes dentro de los procesos de enseñanza aprendizaje en escuelas y colegios del país, por las falencias que se viene arrastrando a partir de la pandemia.  Durante el desarrollo de una clase un docente debe encaminarse hacia el objetivo, al no cumplirse este, el maestro está en la obligación de realizar refuerzos para lograr que los estudiantes se apropien del conocimiento impartido. Según datos del Ministerio de Educación, esta deficiencia se concentra en estudiantes del nivel básico superior y bachillerato, lo que explica la alta demanda de estrategias y actividades enfocadas en el refuerzo académico.  Por tal razón, la presente investigación propone la utilización de una herramienta digital (kahoot), como un medio alternativo y metodológico en el refuerzo académico el cual servirá para fortalecer y complementar los vacíos académicos generados durante el proceso escolar, además, se considera como una herramienta de aprendizaje utilizada con diferentes finalidades; que permita desarrollar de manera dinámica los programas de refuerzo académico en estudiantes del bachillerato técnico. La  institución objeto de investigación es la Unidad Educativa Comunitaria Intercultural Bilingüe “Jatari Unancha”, que cuenta con cuatro figuras profesionales con un aproximado de  1200 estudiantes donde se ha identificado la necesidad de implementar diferentes estrategias innovadoras para promover el desarrollo cognitivo de estudiantes que les permita alcanzar los niveles óptimos en comprensión de las asignaturas especialmente  matemáticas, ya  que  dicha asignatura es de vital importancia para el desarrollo integral del estudiante.
Análisis de la experiencia del cliente en el comercio electrónico mediante inteligencia de negocios
Authors: Salgado-Reyes Nelson , Fajardo-Vanegas Pamela , Vasquez-Guevara Marcelo
Published: November 2024

El presente estudio analiza el impacto de la inteligencia de negocios (BI) en la experiencia del cliente en el comercio electrónico. Se evaluaron tres objetivos: el impacto del análisis de datos en tiempo real en la personalización de la experiencia de compra, cómo la BI puede mejorar la resolución proactiva de problemas en el servicio al cliente, y la influencia de la integración de datos en la optimización y la coherencia de la experiencia del cliente. Se realizaron análisis descriptivos, regresión múltiple, ANOVA, pruebas de hipótesis y análisis de clústeres sobre una muestra de 150 empresas de comercio electrónico. Los resultados indican que la personalización de anuncios, facilitada por el análisis de datos en tiempo real, tiene un impacto significativo pero negativo en la satisfacción y lealtad del cliente.
El análisis cualitativo mediante entrevistas destacó que las herramientas de BI permiten una resolución más rápida y eficaz de problemas. La integración de datos mostró una tendencia a mejorar la tasa de conversión y lealtad del cliente, aunque no se encontraron resultados estadísticamente significativos. El análisis de clústeres identificó cuatro grupos de empresas con características distintivas en términos de implementación de BI y sus impactos en la experiencia del cliente. Las empresas con una mayor adopción de análisis de datos en tiempo real y personalización de anuncios mostraron desafíos en la satisfacción del cliente, mientras que aquellas con una mejor integración de datos tendían a tener mejores tasas de conversión
Tendencias emergentes en el marketing digital para el comercio electrónico en 2024
Authors: Salgado-Reyes Nelson , León-Torres Mario
Published: November 2024

This article examines emerging trends in digital marketing and their impact on e-commerce by 2024. Through a mixed approach combining quantitative and qualitative analysis, technologies such as augmented reality (AR), virtual reality (VR), blockchain, artificial intelligence (AI), voice search, and advanced personalization were investigated. The quantitative analysis was based on data from 50 e-commerce companies, while the qualitative analysis was conducted through in-depth interviews with marketing and technology directors from 10 selected companies. The results indicate that the implementation of AR and VR significantly improves customer experience and conversion rates, although it faces technical and usability challenges. Blockchain technology increases the transparency and security of transactions, reducing fraud, but presents barriers in terms of technical complexity and costs. AI enables advanced personalization, improving content relevance and sales, although it raises concerns about data privacy. Voice search optimization improves customer service efficiency, facilitating faster and more natural interactions, although integration with existing systems can be complex. Finally, advanced personalization is crucial for customer loyalty, providing personalized and satisfying shopping experiences, although it requires a robust technological infrastructure.
Survival, treatment duration and costs of patients with prostate cancer treated with triptorelin in Italy: a study of administrative databases
Authors: Caffo Orazio , Facchini Gaetano , Degli Esposti Luca , Acciai Valentina , Mauri Giorgio , Mazzanti Paola , Fornarini Giuseppe
Published: November 2024

Background: Several data support the efficacy/effectiveness, safety and favorable impact on quality of life of triptorelin treatment in patients with prostate cancer. However, little evidence is available concerning triptorelin use in the long term.
Methods: We analyzed data on triptorelin treatment in patients with prostate cancer in an integrated Italian administrative database, covering around 6 million health-assisted subjects throughout the country. Patients with at least one prescription for triptorelin in the period 2010-2020 and with no evidence of metastasis were included and followed up until 2021. Overall survival (OS) and duration of treatment were analyzed using Kaplan-Meier curves, starting from the date of first prescription.
Results: The cohort included a total of 3,411 patients (mean age: 76.8 ± 8.7 years), of whom 1,326 (38.9%) were treated with triptorelin only and 2,085 (61.1%) with triptorelin combined with an anti-androgen. Overall, 847 (24.8%) patients with prostate cancer died and 1,037 (30.4%) had a treatment switch during the follow-up period, and both the median OS and median duration of treatment were not reached in both groups. The mean annual total cost per patient was estimated as 5,574 €, with almost half of the costs related to medication expenses (2,737 €).
Conclusions: We found a long survival and duration of triptorelin treatment in this population of Italian patients with prostate cancer. This study with a long follow-up period further highlights the usefulness of healthcare utilization databases to integrate results obtained from clinical studies with those from everyday clinical practice.
“Within the Borders of a Monastery” by Ekaterine Gabashvili: The Representation of Female Desire and the Feminine
Authors: Abuladze Nana
Published: November 2024

Within the Borders of a Monastery is a story by Georgian feminist writer and activist Ekaterine Gabashvili (1851-1938). The goal of the paper is to explore the representation of female desire in the story. As Georgia was the part of the USSR, the humanities in Georgia were ideologized – the scholars would analyze literary texts from strictly Marxist point of view. Therefore, the process of reviewing Georgian literature from feminist perspective has started only recently. The paper contributes to the process and suggests an innovative reading of Gabashvili’s story. As Gabashvili thematizes hysteria and psychosis from feminist-psychoanalytical perspective and challenges gender roles, the paper uses the methodology of the Feminist Literary Criticism with French Feminist and the Gender Performativity Theories. The paper argues that the story depicts female desire as a destructive, incontrollable force which is pre-oedipal, opposes the Symbolic (i.e. the patriarchy) and manifests itself either through hysteria/psychosis or through the semiotic metaphors (e.g. dance). It transcends the female body and is connected to the feminine: the female and male protagonists (Salo and Tevdore, respectively) who love each other, experience and express their desire identically. The feminine is shown as a performative phenomenon through the androgenous male protagonist Tevdore. The opposition between the Semiotic and the Symbolic is reinforced through the semantics of space. The end of the story (the protagonists committing a suicide) reveals the theme of the story: banishing the female desire and the feminine from the symbolic order.
Ceza Muhakemesinde DNA Analizinin İspat Kuvveti (Türk, Amerikan ve Alman Mahkeme Kararları Işığında)
Authors: Selek Ozan
Published: November 2024

DNA’nın bireyden bireye değişiklik gösteren, benzersiz yapısı sebebiyle, adli bilimlerde kimlik tespiti açısından kullanılabileceğinin keşfedilmesi oldukça çarpıcı bir gelişmedir. Olay yerinden elde edilen kan, sperm gibi biyolojik örneklerin sanıktan elde edilen vücut materyalleri ile karşılaştırılması, yüksek dereceli bir bilimsel kesinlik dahilinde kimlik tespitini mümkün kılmaktadır. Sanığın genetik özellikleri ile olay yerinden elde edilen izlerin eşleşmediği tespit edilirse, DNA analizi sanığı dışlayıcı bir etkiye sahip olur. Buna karşılık, olay yerinde bulunan iz materyali ile sanığın genetik özellikleri eşleştiğinde, bu eşleşmenin hangi büyüklükte bir ispat kuvvetine sahip olduğu hususunun da incelenmesi gerekmektedir. Bu bağlamda, sadece DNA analiz sonuçlarına dayanılarak sanığın suçu işlediğinin kabul edilip edilemeyeceği meselesinin ele alınması önem arz eder. Bugüne kadar Türk öğretisinde yeteri kadar değinilmeyen bu konu, çalışmada Türk, Amerikan ve Alman mahkeme kararları çerçevesinde incelenmiştir.
A Knot Fit to Be Untied: A Collective Contrarian ‘We’ in Today’s Mediterranean
Authors: Botta Anna
Published: November 2024

This essay analyses two short documentaries, both produced in 2014 (just one year before the publication of Erri De Luca’s La parola contraria), which focus on Lampedusa and its surrounding waters: the documentary Liquid Traces: The Left-to-Die Boat Case, directed by the geographers Charles Heller and Lorenzo Pezzani, and LampeduSani, a TV film born out of the collaboration between the Italian writer Erri De Luca and the Sicilian director Costanza Quatriglio. The two movies will be considered as forms of contrarian speech (‘parola contraria’). The essay shows the challenges faced whenever we are engaged in creating a collective contrarian ‘we’.
Contrary Virtuosos? Paradoxes of a Liminal Figure
Authors: de Waard Marco
Published: November 2024

This essay explores the figure of the ‘virtuoso’, as theorized by Paolo Virno, Isabell Lorey and others, as the contemporary contrarian par excellence. In particular, the essay looks at the role of language for virtuosity, and what analytical purchase might be offered by the notion of contrarian speech. Through a close reading of Peter Greenaway's Goltzius and the Pelican Company (2012), we will analyse the virtuoso's relationship with freedom, politics and power in connection with themes of creative enterprise and the public realm. The film permits us to explore virtuosity as contrarianism, that is to say: it helps us see how both mediate between freedom and servility, between ideas of self-grounding agency and a subjugating governmental logic and between different notions and practices of publicness in relation to symbolic forms of authority and power.
Rafael Acevedo’s Cynical Voice in Literature: Finding Words Beyond Neoliberal Numbing
Authors: Kressner Ilka
Published: November 2024

This essay examines the possibly subversive functions of cynical enunciations as found in Puerto Rican author Rafael Acevedo’s 2014 novel Al otro lado del muro hay carne fresca (There’s Fresh Meat on the Other Side of the Wall). It asks how the relocation of the cynical figure from a factual context into the world of dystopian fiction and metafiction may challenge a passive stance and allude to alternative enunciations beyond the reaffirmation of an extant neoliberal power structure. Through the stubborn insistence on the continuity of cynical discourse, as ambiguous and ever self-scrutinizing wavering motion among levels of enunciation, Acevedo’s narrator explores and discusses counter-narratives and reflections in the parallel world of fiction.
Small Lights: On Poems, Coming-to-consciousness and Conscience
Authors: Forché Carolyn , Gräbner Cornelia
Published: November 2024

The essay re-arranges elements of three online conversations between the authors in May-June 2022. Throughout these conversations the authors explored themes around the poetics of dissent, oppositional consciousness, dissidence, and poetry of witness, in relation to the process of coming-to-consciousness. The essay translates the resonant, non-linear dynamic of the conversations into writing, and arranges the content in six central sections: Stepping Out, Immersions and Accompaniments, Countering Acquiescence, Being Present, Extremity, and Dissidence. Each section is introduced first by a quote by Forché, then by a brief reflection and conceptualization by Gräbner, and a key term then introduces each train of thought. The themes emerge within a poetic, conceptual and political reflection on consciousness and conscience.
The Decolonial Poetics of Jaime Luis Huenún
Authors: Fabry Geneviève
Published: November 2024

The social and literary evolution of contemporary Chile is characterized by the affirmation of new voices from indigenous peoples. This article aims to show how one of these voices, the mestizo poet of Mapuche-Huilliche origin Jaime Luis Huenún, articulates a poetic project of great originality and critical significance. In the collection Reducciones (Reservations), the documentary poetry invites the reader to engage with the decolonization of knowledge, while Fanon city meu ( fanon city meu) focuses on the ravages of colonization on identity. The latter is seen as a descent into hell. The infernal motif is made clearer by the polemical discussion Fanon has with Sartre on the latter's text Black Orpheus. This implicit dialogue provides the key to Huenun's decolonial poetics and allows us to underline the aporia inherent in the quest for identity and its inextricable link with betrayal.
The Deeper Beats of the Heart: Poetry, Platforms and the Collapse of the Public Sphere
Authors: Clancy Sarah , Gräbner Cornelia
Published: November 2024

Poet Sarah Clancy and cultural analyst Cornelia Gräbner explore themes that lie at the heart of contemporary poetry as an emancipatory, positioned form of speech; specifically, poems written by Sarah Clancy from within Ireland’s anti-austerity movement, as part of the campaign to legalize abortion and from a positioning within constellations of transatlantic solidarity. Clancy and Gräbner explore the contestatory and propositional traction of poems that are created and spoken from within social movements and campaigns, often as a contribution to community-building; and poems that intentionally take the listener / reader out of their comfort zone, so as to expose and counter acquiescence to the status quo. In both cases, poetry-as-speech acts as a counterforce to the silent and silencing affects of consolation and of shame.
Poetry, Parody and the Construction of Contrarian Discourse in Franco’s Spain
Authors: O’Donoghue Samuel
Published: November 2024

This article examines how poetry subverted Francoist control over the written word in National-Catholic Spain. Despite the policing of culture by the regime’s censors, poets were able to use their works to express their nonconformity with the social and political situation. Spanish poets working under the regime resorted to subtle techniques in order to articulate their dissent. This article explores the political possibilities of one such technique: parody. It evaluates the limitations of parodic discourse as a form of political critique and offers an appraisal of the value of this literary form in the specific context of Francoist Spain. Offering a close reading of a work of parodic poetry by Ángel González, the article analyses how parody is used to appropriate and subvert Francoist National-Catholic discourse.
ISSUES OF DEVELOPMENT OF COOPERATION BETWEEN THE USA AND RUSSIA IN THE SPHERE OF INTERNATIONAL INFORMATION SECURITY
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russian Federation, ZAGAYNOV M.R.
Published: November 2024

The article presents an analysis of cyber threats implemented against Russia and the United States, and also examines possible dangers in the field of international information security within the framework of the current global political situation. The author has explored the history of the development of approaches of the Russian Federation and the United States of America to ensuring state security in the cyber environment. An analysis of the problems of international information security is carried out using the example of bilateral relations between the United States and Russia, both in the historical context and in the current international political situation. US policy is aimed at independently identifying and holding accountable for cyberattacks the state from whose territory, in their opinion, the threat came. And due to the difficulties in detecting attackers in practice, this approach is prone to abuse. While Russia proposes to investigate each situation individually and hold the instigators and perpetrators accountable. And due to the fact that currently there is no mechanism for crisis resolution of conflict situations in the ICT environment and uniform international standards for resolving cyber conflicts, the option proposed by Russia seems to the author more promising.
DEVELOPMENT OF ENERGY TRANSPORT CORRIDORS IN THE MIDDLE EAST AS THE BASIS OF REGIONAL CONFLICTS
Authors:   Institute for Information Wars Research, Israel, BOCHAROV YU.B.
Published: November 2024

Purpose of the study. The article examines the problems of vulnerability of energy transport corridors in the Middle East and their impact on the global economy. The role of geopolitical actors such as the USA, Russia and China on the development of relations between the countries of the Middle East and the resulting tension in the region due to their rivalry are analyzed. A brief overview of the reasons why a number of countries in the region have problems when planning and creating new transport and energy corridors connecting the region with other countries of the world is given. It is concluded that the development of energy transport corridors in the Middle East serves as both a source of development and a catalyst for regional conflicts. Understanding this relationship between energy strategies, geopolitics and conflict is an important aspect for developing sustainable and peaceful solutions in this strategically important region.
SOCIAL TRANSFORMATION IN RUSSIA IN THE 1990S: PROBLEMS AND PERIODIZATION OF THE FORMATION OF SOCIAL POLICY
Authors:   Ufa University of Science and Technology, Ufa, Russian Federation, YUSUPOV R.G. , KHAIBULLIN A.R. , GRIGORIEV E.N.
Published: November 2024

The article analyzes the problems and periodization of the formation of social policy in Russia in the 1990s. After the collapse of the USSR, the abandonment of the socialist path of development and a sharp turn towards the capitalist path, expressed in radical market reforms, the Russian state, which began to copy and transfer the experience of developed Western countries to Russian realities, faced a dual task - to form an economic policy based on market principles and, again based on the experience of Western countries, a new social policy. Western states are not unanimous on social issues, but social policies are formed and implemented by all. There are three basic models of it, in which the participation of the state in the implementation of social tasks is outlined in different ways. However, the Russian authorities are faced not so much with the problem of choosing an appropriate model, but with the problem of adapting the state’s social obligations to the consequences of market transformations. The term “transformational model of social policy” even appeared in the scientific literature, indicating a state of transition, but it was not possible to unambiguously describe this term, since approaches to social transformation in different countries did not repeat each other. Moreover, the practice of transition to a market in Russia and other countries with a socialist background has shown different reactions to universal market laws and mechanisms. The Russian scenario turned out to be painful for the economy and social sphere. It was established that the social sphere was transformed in three stages, but none of them had a systematic and complete form. On this basis, we concluded that in Russia in the 1990s, social transformation laid some of the foundations for social policy. But it did not lead to the formation of social policy itself, which is incorrect to interpret as a certain sum of social measures, because any policy, including social policy, is usually understood as a mechanism developed by the state for regulating social relations, aimed at their harmonization.
TURKEY'S SOFT POWER RESOURCES AND TOOLS IN AZERBAIJAN
Authors:   Diplomatic Academy of the Ministry of Foreign Affairs of the Russian Federation, Moscow, Russian Federation, ZINNUROV I.KH. , SHANGARAEV R.N.
Published: November 2024

“Soft power” resources are the availability of certain opportunities, reserves, and options for one state to attract or voluntarily persuade another state to its policy. Azerbaijan plays an important role in modern Turkish geopolitics. Turkey is active in the South Caucasus, pursuing a policy of “soft power” through culture, investment and bilateral cooperation.
POTENTIAL OF PULSED TUNNEL EFFECT (PTE) TO OVERCOME TECHNICAL BARRIERS OF QUANTUM COMPUTERS
Authors:   Institute of Materials Science of the Academy of Science of Uzbekistan, Tashkent, Republic of Uzbekistan, RAKHIMOV R.KH.
Published: November 2024

The article discusses the prospects and technical challenges of developing practical quantum computers. It is noted that quantum computers have a unique ability to perform multiple computations simultaneously, due to the use of quantum effects such as superposition and entanglement. This makes them extremely powerful in solving certain types of complex problems, including cryptography, optimization, quantum system modeling, and large database searches. However, the development of practical quantum computers faces serious technical challenges. A key issue is the extreme sensitivity of qubits (the fundamental elements of quantum computers) to external influences, which leads to the disruption of their quantum state. To address this problem, the possibility of using pulsed tunneling effect (PTE) is discussed. This may allow stabilizing the characteristics and quantum states of qubits and thus advance the development of practical quantum computers.
PULSED TUNNEL EFFECT: NEW PERSPECTIVES FOR CONTROLLING SUPERCONDUCTING DEVICES
Authors:   Institute of Materials Science of the Academy of Science of Uzbekistan, Tashkent, Republic of Uzbekistan, RAKHIMOV R.KH.
Published: November 2024

The article is devoted to the study of pulsed tunneling effect and its new prospects in the control of superconducting devices. The quantum nature of electrical resistance, including the quantum Hall effect, the Klitzing quantum resistance, and the Josephson effect, is considered. Particular attention is paid to the role of quantum size effects in the formation of the electrical resistance of nanostructures and molecular conductors. The article highlights new prospects for the use of pulsed tunneling effect to control the characteristics of superconducting devices.
INVESTIGATION OF A DYNAMICALLY CHANGING SIGNAL USING WAVELET TRANSFORMATIONS
Authors:   MIREA - Russian Technological University, Moscow, Russian Federation, KOMAROV P.V. , POTEKHIN D.S.
Published: November 2024

In the presented work, a wavelet analysis of the patient’s electroencephalogram was performed, followed by the construction of a scalogram. This approach made it possible to identify the frequency components of the electroencephalogram and conduct a comprehensive analysis of them. The obtained results can be used to monitor the state of the patient’s brain activity. The main purpose of the study is to analyze and filter the signal to determine the main composite frequencies of the electroencephalographic signal, on the basis of which it is possible to determine the state of brain activity at certain points in time, which may reflect various cognitive processes, emotional states and concentration levels of the patient. Methodology. An electroencephalogram of the patient is taken, and using wavelet transformations, a set of frequencies at each moment of time with their amplitude is obtained. Then the signal is filtered from noise, and the wavelet transform is re-applied to obtain a set of frequencies. After that, the frequencies are analyzed at each point in time, and based on the data, the state of the patient’s brain activity is determined. The results of the study. As a result of the study of the electroencephalographic signal analysis process, it was possible to filter the original signal from noise and identify the main frequencies that make up the electroencephalographic signal. After that, on the basis of frequencies, different states of consciousness of the patient at each moment of time are determined. The scope of application. The introduction of the principles of wavelet analysis into the architecture of programmable logic integrated circuits (FPGAs) for analyzing captured signals using ultrasonic sensors on FPGAs, thus implementing an autonomous device.
IMPLEMENTATION OF SIMOYU METHOD FOR MODELING OF TRANSIENTS OF CONTROL OBJECT
Authors:   Plekhanov Russian University of Economics, Moscow, Russian Federation, ARTEMYEV V.S. , MAKSIMOV A.S. ,   Russian Biotechnological University (ROSBIOTECH), Moscow, Russian Federation
Published: November 2024

In this paper transients in the control system are investigated on the basis of experimental data. The construction of the transfer function of the control object using Simoyu method is realized by means of Python language. The model of the control system of the object, selection of the regulator and its settings are implemented using SimInTech modeling environment. Within the framework of the conducted research, methodological approaches to the formation of transfer functions of control objects represented in the form of polynomial expressions of various degrees of complexity, starting with polynomials of the first degree in the numerator and the second degree in the denominator, and ending with polynomials of the second degree in the denominator against the third degree in the numerator, have been developed and tested. A procedure for reading data in CSV format was used to build the Python program interface, which helped to simplify the integration of experimental results with analytical tools, providing a powerful platform for subsequent analysis, visualization, and interpretation of the resulting transfer functions. The procedures of debugging and optimization of the technique of visualization of results and estimation of calculation errors have been carried out, which allowed to provide a visual representation of data and high accuracy of the obtained transfer functions. In contrast to the known analytical studies in the field of differential equations describing transient processes, the use of numerical methods implemented by means of Python libraries and programming environments, in particular SimInTech, allows to simplify the analysis of transient processes of control objects.
METHOD FIRST APPROXIMATION STABILITY ANALYSIS OF ELECTRICAL CONTROL SYSTEMS
Authors:   Plekhanov Russian University of Economics, Moscow, Russian Federation, ARTEMYEV V.S. , MOKROVA N.V. ,   National Research Technological University “MISiS”, Moscow, Russian Federation
Published: November 2024

This article is devoted to the research and analysis of automated control systems and control of electrical equipment of technological processes of agricultural production. The first approximation method is used for evaluation the stability of the operation of electric drive control systems. Methods for assessing the stability zone of electric drive control systems, determining critical gain coefficients, and optimizing the parameters of electrical circuits included systems, in order to increase the efficiency and reliability of production chains are proposed. To solve the problem of controlling the electric drives of automated systems for harvesting and sorting agricultural crops, the method was tested, a critical gain value of 3.2 was obtained, which allows us to talk about optimizing such systems in terms of speed and load.
APPLICATION OF THE THEORY OF PETRI NETS IN THE DEVELOPMENT OF SIMULATION MODELS OF BUSINESS PROCESSES BASED ON THE IDEF3 METHODOLOGY
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russian Federation, PETROSOV D.A.
Published: November 2024

In this study, we propose a model of an artificial neural network used as a specialized superstructure over a genetic algorithm, which allows influencing the process of finding solutions directly during the synthesis of solutions. Such a combination of methods will allow controlling the trajectory of the population in the solution space, which is especially important when working with big data processing technology, when stopping the solution search process due to the attenuation of the evolutionary procedure or finding the population in a local extremum requires stopping the genetic algorithm, performing additional adjustment of operators and restarting, the use of such an approach is ineffective, especially when working with big data and labor-intensive calculations. This article proposes a model of an artificial neural network that allows recognizing the state of the population of the genetic algorithm and making a decision to change the operating parameters of the genetic algorithm operators. The proposed model allows recognizing the processes of attenuation of the evolutionary procedure when solving the problem of structural and parametric synthesis of large discrete systems and determining measures of influence on the operating parameters of the genetic algorithm. This model recognizes the state of the population with an accuracy of more than 95%, which allows to significantly reduce the time for finding solutions in problems of applying a genetic algorithm to work with big data.
INTERRELATION AND INTERPRETATION OF EFFECTS IN QUANTUM MECHANICS AND CLASSICAL PHYSICS
Authors:   Institute of Materials Science of the Academy of Science of Uzbekistan, Tashkent, Republic of Uzbekistan, RAKHIMOV R.KH.
Published: November 2024

Quantum mechanics based on the probabilistic approach provides a powerful tool for accurate prediction and interpretation of quantum phenomena, allowing statistically sound predictions about the behavior of microparticles and quantum systems. This statement emphasizes the probabilistic nature of quantum mechanics, its applicability to quantum phenomena and microparticles, as well as the statistical nature of its predictions when applied to the macro effects of classical physics. In addition, the role of statistics and probability in various fields of science, such as particle physics, thermodynamics, biology, sociology, psychology, economics and finance, is discussed. The philosophical implications of the probabilistic approach and the associated limitations and challenges are also considered.
Computing the Sum of Geometric Series based on Algebraic Expression
Authors: Annamalai Chinnaraji
Published: November 2024

Nowadays, the growing complexity of mathematical and computational modelling demands the simplicity of mathematical equations to solve today’s scientific problems and meet challenges. In this paper, the author introduces the sum of geometric series based on numerical and algebraic expressions. This computational technique can enable the students and scholars to enhance their research knowledge in the domain of computing and mathematical sciences.
Revisión sistemática sobre programas de prevención de la violencia de género en la adolescencia
Authors: Rasero Giles Cristina , Gomez Baya Diego
Published: November 2024

El objetivo de este trabajo fue realizar una revisión sistemática sobre programas de prevención de la violencia de género en la adolescencia. La violencia de género es un problema de salud pública que afecta a, aproximadamente, un tercio de las mujeres a nivel global. Por ello, intervenir en esta etapa resulta esencial, pues es cuando los jóvenes empiezan a experimentan con nuevas formas de pensar y comportarse en sus relaciones. La búsqueda se realizó a través de la Web of Science, y, tras aplicar los criterios de inclusión y exclusión, se contó con un total de 13 artículos. El trabajo destaca la necesidad de identificar las revisiones sistemáticas que se vienen realizando y ofrece una síntesis estructurada de los artículos, detallando la muestra, el diseño, los instrumentos y los resultados obtenidos en cada uno de ellos. Dichos resultados muestran como las diversas intervenciones estudiadas han logrado reducir la perpetración de diversas formas de violencia, además de una mejora en el bienestar de los participantes y un cambio en las actitudes y comportamientos que actúan como mantenedores del problema. Además, también se encontró eficacia en las intervenciones que involucraban a la familia. Esto ofrece una visión más amplia sobre aquello que funciona para el desarrollo de futuras intervenciones.
Revisión sistemática sobre programas de prevención de obesidad infantil
Authors: García Romero Isabel , Gomez Baya Diego
Published: November 2024

La obesidad infantil es un problema sanitario en auge, pues está aumentando de forma significativa en diferentes países desarrollados últimamente. Hay estudios que consideran esta problemática la pandemia actual de nuestra sociedad. A su vez, está asociada a una serie de consecuencias negativas que afectan tanto a la salud física como a la salud mental, a corto y a largo plazo. También, está relacionada con varios factores de riesgo que son necesarios paliar para evitar que la tasa de obesidad aumente en la sociedad. Ya que, la incidencia de obesidad en menores es cada vez mayor, esta revisión bibliográfica trata de localizar programas actuales de prevención infantil, publicados desde 2019 a 2024. Para realizar la misma, se consultó la plataforma Web Of Science y se utilizaron los operadores boleanos “AND” y “OR”. De los 554 artículos localizados, se seleccionaron 19 programas de prevención, los cuales están todos evaluados y presentan cuatro tipos de enfoque de intervención diferentes. Tras el análisis de todos estos artículos, se concluyó que es recomendable realizar intervenciones directas con los menores, fomentando todos los factores protectores posibles, o intervenciones con los padres y madres, tratando de mejorar los hábitos alimentarios de sus hijos e hijas.
Educational institutions as healthy working environments: well-being and stress management in education professionals
Authors: Gaspar Tania , Pestana Susana , Borges de Sousa Sofía , Barata Marta , Loureiro Nuno , Gaspar de Mato Margarida
Published: November 2024

The present study explores how a healthy working environment affects the well-being of education professionals and the role of stress management skills in mediating this relationship. A total of 405 education professionals took part, 69.6 % of whom were female. Of these, 36 % were under the age of 39, while 64 % were aged 40 or over. The Ecosystems of Healthy Work (EATS) instrument was used to assess the work environment, comprising 62 items in nine dimensions based on the World Health Organisation model. The results show a relationship between well-being, stress management skills, and the perception of a healthy work environment. Differences emerged according to gender and job stability. The mediation model revealed a relationship between a healthy work environment and the well-being of professionals, mediated by stress management skills. The study recommends strategies to promote well-being and healthier working conditions for education professionals.
Morphogen-driven differentiation is precluded by physical confinement in human iPSCs spheroids
Authors: Alsehli Haneen S. , Roy Errin , Williams Thomas , Kuziola Alicja , Guo Yunzhe , Dreiss Cecile A. , Green Jeremy B.A. , Gentleman Eileen , Danovi Davide
Published: November 2024

Introduction

Cell lineage specification is tightly associated with profound morphological changes in the developing human embryo, particularly during gastrulation. The interplay between mechanical forces and biochemical signals is poorly understood.

Methods

Here, we dissect the effects of biochemical cues and physical confinement on a 3D in vitro model based on spheroids formed from human induced pluripotent stem cells (hiPSCs).

Results

First, we compare self-renewing versus differentiating media conditions in free-floating cultures and observe the emergence of tri-germ layers. In these unconfined conditions, BMP4 exposure induces polarised expression of SOX17 in conjunction with spheroid elongation. We then physically confine spheroids using PEG-peptide hydrogels and observe dramatically reduced SOX17 expression, albeit rescued if gels that soften over time are used instead.

Discussion

Our study combines high-content imaging, synthetic hydrogels, and hiPSCs-derived models of early development to define the drivers that cause changes in the shape and the emergence of germ layers.
Optically accessible, 3D-printed flow chamber with integrated sensors for the monitoring of oral multispecies biofilm growth in vitro
Authors: Debener Nicolas , Heine Nils , Legutko Beate , Denkena Berend , Prasanthan Vannila , Frings Katharina , Torres-Mapa Maria Leilani , Heisterkamp Alexander , Stiesch Meike , Doll-Nikutta Katharina , Bahnemann Janina
Published: November 2024

The formation of pathogenic multispecies biofilms in the human oral cavity can lead to implant-associated infections, which may ultimately result in implant failure. These infections are neither easily detected nor readily treated. Due to high complexity of oral biofilms, detailed mechanisms of the bacterial dysbiotic shift are not yet even fully understood. In order to study oral biofilms in more detail and develop prevention strategies to fight implant-associated infections, in vitro biofilm models are sorely needed. In this study, we adapted an in vitro biofilm flow chamber model to include miniaturized transparent 3D-printed flow chambers with integrated optical pH sensors – thereby enabling the microscopic evaluation of biofilm growth as well as the monitoring of acidification in close proximity. Two different 3D printing materials were initially characterized with respect to their biocompatibility and surface topography. The functionality of the optically accessible miniaturized flow chambers was then tested using five-species biofilms (featuring the species Streptococcus oralis, Veillonella dispar, Actinomyces naeslundii, Fusobacterium nucleatum, and Porphyromonas gingivalis) and compared to biofilm growth on titanium specimens in the established flow chamber model. As confirmed by live/dead staining and fluorescence in situ hybridization via confocal laser scanning microscopy, the flow chamber setup proved to be suitable for growing reproducible oral biofilms under flow conditions while continuously monitoring biofilm pH. Therefore, the system is suitable for future research use with respect to biofilm dysbiosis and also has great potential for further parallelization and adaptation to achieve higher throughput as well as include additional optical sensors or sample materials.
Navigating stem cell culture: insights, techniques, challenges, and prospects
Authors: Górska Aleksandra , Trubalski Mateusz , Borowski Bartosz , Brachet Adam , Szymańczyk Sylwia , Markiewicz Renata
Published: November 2024

Stem cell research holds huge promise for regenerative medicine and disease modeling, making the understanding and optimization of stem cell culture a critical aspect of advancing these therapeutic applications. This comprehensive review provides an in-depth overview of stem cell culture, including general information, contemporary techniques, encountered problems, and future perspectives. The article begins by explaining the fundamental characteristics of various stem cell types, elucidating the importance of proper culture conditions in maintaining pluripotency or lineage commitment. A detailed exploration of established culture techniques sheds light on the evolving landscape of stem cell culture methodologies. Common challenges such as genetic stability, heterogeneity, and differentiation efficiency are thoroughly discussed, with insights into cutting-edge strategies and technologies aimed at addressing these hurdles. Moreover, the article delves into the impact of substrate materials, culture media components, and biophysical cues on stem cell behavior, emphasizing the intricate interplay between the microenvironment and cell fate decisions. As stem cell research advances, ethical considerations and regulatory frameworks become increasingly important, prompting a critical examination of these aspects in the context of culture practices. Lastly, the article explores emerging perspectives, including the integration of artificial intelligence and machine learning in optimizing culture conditions, and the potential applications of stem cell-derived products in personalized medicine. This comprehensive overview aims to serve as a valuable resource for researchers and clinicians, fostering a deeper understanding of stem cell culture and its key role in advancing regenerative medicine and biomedical research.