bluuebunny/crossref_metadata_2025 huggingface dataset:
MACONHA, COGOLLO E FRONTEIRAS SIMBÓLICAS NA CONURBAÇÃO CHUÍ / CHUY
Authors: Jeske Henrique
Published: September 2024

Este trabalho é parte componente de uma etnografia em andamento, conduzida nas cidades do Chuí, no extremo sul do Brasil, e Chuy, na região sudeste do Uruguai. O objetivo da pesquisa é analisar a interação entre brasileiros, uruguaios e doble chapas no tocante ao plantio, consumo, comércio e tráfico de Cannabis, considerando o contexto de criminalização da substância do lado brasileiro da fronteira, e de regularização do lado uruguaio. Ancorado no interacionismo simbólico como base teórica conceitual, intenciona apreender por intermédio da observação participante e condução de entrevistas os significados atribuídos à legalidade e ilegalidade, acesso e consumo, bem como aos possíveis desdobramentos próprios de regiões fronteiriças e atenuados pelas particularidades geográficas do lugar. Argumenta-se hipoteticamente que processos dinâmicos típicos da região fronteiriça se estendem, nesse caso, também ao livre fluxo de negociação, oferta e consumo da planta e seus derivados. Pressupõe-se que a fronteira em questão funcione como um "campo neutral", ou seja, um espaço onde converge grande parte daquilo que é compreendido como aspecto benéfico de uma ou outra legislação, ao passo que os ditames estatais, permissivos (ainda que regulados) ou proibicionistas, não gozam de pleno vigor quando comparados a outros espaços localizados para além das quatro aduanas que cercam a conurbação.
Choque, trauma e espetáculos sangrentos: analisando o trauma da violência dos Estados Unidos no contexto da Guerra ao Terror e sua relação com o Torture Porn
Authors: Martins Beatriz
Published: September 2024

O presente trabalho busca analisar filmes de terror norte-americanos do subgênero torture porn e a maneira como eles se relacionam com as discussões políticas da época sobre a invasão do Iraque pelos Estados Unidos e a divulgação de fotos de tortura por parte de oficiais norte-americanos em prisões no exterior. Esses filmes surgem em um contexto em que a violência e discussões sobre guerra e tortura estão cada vez mais presentes na vida cotidiana dos EUA, de forma que esses filmes buscam representar as complexidades éticas de um assunto cada vez mais comentado. A construção da bibliografia se deu a partir de três pilares: a virada estética nas Relações Internacionais, estudos sobre emoções e traumas em comunidades políticas e uma literatura crítica sobre filmes de terror. Já as franquias trabalhadas foram os quatro primeiros filmes de “Jogos Mortais” e os dois primeiros de “O Albergue”. Os Atentados de 11 de setembro geraram um sentimento de humilhação e vergonha que servem, em parte, para explicar o fenômeno da Guerra ao Terror. As fotos divulgadas se mostram como a prova concreta do uso de tortura de maneira disseminada pelos soldados norte-americanos e, mais do que isso, a existência de um Estado que autoriza violações aos direitos humanos. Talvez pela primeira vez, o cidadão comum norte-americano é confrontado com uma dura verdade: a tortura e a violência estão intrinsecamente ligadas aos valores estadunidenses e, em muitos outros lugares, o “Outro” monstruoso são eles.
NOTAS CRÍTICAS SOBRE A EMERGÊNCIA E EVOLUÇÃO DO CAMPO DOS ESTUDOS RURAIS NO BRASIL
Authors: Mariano Júlia , Favareto Arilson
Published: September 2024

O artigo analisa a emergência e a evolução do campo dos estudos rurais no Brasil, buscando compreender como se modificaram suas articulações internas e externas. Apoiado no conceito de campo científico de Bourdieu, procura explicar a estrutura e a mudança desse ramo das ciências sociais a partir das injunções entre seus atributos próprios e outros domínios sociais. A análise se apoia em três dimensões: a) a dimensão epistemológica, pela evolução dos temas, teorias e métodos usados; b) a dimensão institucional, com foco no financiamento, na formação dos programas de pós-graduação, centros de pesquisa e associações; e c) a societal, pelas interdependências entre a ciência e a sociedade, incluindo a circulação dos cientistas. Para isso, foram analisadas obras de referência, balanços da literatura já produzidos e textos biográficos de pesquisadores chave. Concluiu-se que a trajetória do campo dos estudos rurais foi moldada por lutas concorrenciais, e por variações nas formas de relação com outras esferas do mundo social, que determinaram sua capacidade de refratar as demandas externas, especialmente do campo político, dando origem a diferentes agendas de pesquisa conforme os contextos de cada época. Identificou-se três etapas da trajetória dos estudos rurais: sua emergência entre 1940 e 1960, marcada pela diferenciação do campo em relação ao debate agrário do campo político; a consolidação nas décadas de 1970 e 1980 com diversificação de agendas e práticas e com fortalecimento epistemológico e institucional; e, entre 1990 e 2010, com uma maior tensão na dialética entre a autonomia e a heteronomia desse campo.
“PARA QUE SERVE O SANGUE, SENÃO PARA SER DERRAMADO?”: VIOLÊNCIA RACIAL ENTRE A SURREALIDADE E A MATERIALIDADE EM CANDYMAN (1992; 2021)
Authors: Ferreira da Silva Mário , Lemes do Nascimento Wagner
Published: September 2024

A partir da etnografia fílmica de dois filmes da franquia Candyman - o primeiro, de 1992, e sua sequência mais recente, lançada em 2021 -, realizamos uma reflexão sobre as possíveis articulações entre marcadores sociais da diferença, questões de pertencimento, espaço, violências raciais e de classe. De maneira mais específica, buscamos engendrar o potencial do cinema de horror para a compreensão do fenômeno do racismo e suas consequências perversas para os corpos e subjetividades negras.  Argumentamos que tanto O Mistério de Candyman (1992) quanto A Lenda de Candyman (2021) têm abordagens distintas sobre o fenômeno do racismo, mas complementares, seja na dimensão surrealista e etérea do primeiro quanto na materialidade e frontalidade do último. Em ambas as obras o racismo não aparece apenas como um arcaísmo do passado, encerrado com o fim do tráfico transatlântico, mas como um vestígio a assombrar, ainda hoje, a vida não apenas dos negros e negras norte-americanas, mas de todos aquelas e aqueles que são herdeiros da diáspora africana.
Experimental investigation on post-installed lap splices in ordinary and steel fiber-reinforced concrete
Authors: Croppi Jose I. , Ahrens Mark Alexander , Palmeri Alessandro , Piccinin Roberto , Mark Peter
Published: September 2024

The design of post-installed lap splices typically relies on provisions derived from cast-in-place reinforcing bars (rebars). However, some bond characteristics of post-installed rebars show significant differences compared to cast-in-place rebars, especially when using high-performance mortars. To quantify the bond strength for design purposes, a sound understanding of differences in bond stress distribution, splitting failure mode, and load transfer mechanisms is crucial. This study offers new experimental evidence on these aspects, focusing on the impact of different high-performance injection mortars, lap lengths, and the incorporation of hooked steel fibers in the concrete. Direct tension tests were conducted on spliced post-installed and cast-in-place rebars. Fiber-optic sensors were used to measure strains quasi-continuously on the rebars, minimizing interference on the bond. The findings reveal that post-installed lap splices yield slightly higher bond strength than their cast-in-place counterparts, mainly due to the higher bond stiffness of the mortars. However, this advantage is limited by the bond behavior of the cast-in-rebar within the post-installed lap splice, particularly in conditions of poor confinement. In ordinary strength concrete, cast-in-place rebars exhibit an approximately constant bond stress distribution, as typically assumed for design purposes; by contrast, post-installed rebars show a pronounced non-linear distribution. Furthermore, an addition of steel fibers alters the bond stress of the rebars, resulting in a non-linear distribution in all cases. The study reveals a 20% increase in bond strength of lap splices in concrete reinforced with 80 $$\hbox {kg}/\hbox {m}^3$$

kg
/

m
3

of steel fibers. Moreover, they improve the ductility of bond failure for post-installed lap splices.
Desenvolvimento de recursos audiovisuais como ferramenta para a melhoria do processo de ensinoaprendizagem e divulgação científica em fisiologia humana
Authors: Oliveira Júnior Francisco Antônio , Ferreira de Farias Emmily , Rittmeyer Ruiz Clara , Alves Paiva Íris , dos Santos Silva Bárbara , de Lima Sobrinho José Alberto , da Silva Filho Rivaldo Gonçalves , de Moura Balarini Camille , César Vasconcelos Luiz Henrique , Regina de Freitas Maria
Published: September 2024

As Tecnologias da Informação e Comunicação (TICs) podem ser uma poderosa ferramenta de aprendizagem, e o modelo de construção de vídeos pode representar uma estratégia educacional eficaz para disseminar e compartilhar informações para todas as áreas do conhecimento. Certamente, o ensino de fisiologia deve se alinhar com essas estratégias e utilizar o ambiente digital como um canal de aplicação e disseminação do conhecimento. Assim, a intenção deste trabalho foi propor um modelo
que pudesse inter-relacionar ensino, pesquisa e divulgação científica na área de fisiologia através da produção de recursos audiovisuais. Um grupo de professores, técnicos, alunos de graduação e pós-graduação planejou, elaborou e lançou dois vídeos: 1) Como a fisiologia do sistema sensorial explica a impressionante leitura do código Braille?; e 2) Métodos adequados para medir a pressão arterial. Para a realização desses vídeos, foram filmadas cenas de aulas práticas em laboratórios de ensino de fisiologia e cenas de técnicas de experimentação animal em laboratórios de pesquisa. A eficácia dos recursos audiovisuais produzidos foi avaliada através de 173 questionários de satisfação que resultaram em elevados níveis de aceitação entre estudantes universitários de sete diferentes
cursos da área da saúde. As métricas de acesso das plataformas/ redes sociais utilizadas para divulgação do projeto se alinharam com os resultados positivos obtidos dos questionários. Os relatos dos estudantes de graduação e pós-graduação envolvidos nas produções ratificaram o potencial do modelo para otimizar a relação entre ensino, pesquisa e extensão. Portanto, este trabalho representou uma experiência eficiente no uso das TICs na aplicação e disseminação do conhecimento acadêmico e científico em fisiologia.
Execução penal, insignificância e direitos humanos
Authors: Ferreira Ana Lúcia Tavares
Published: September 2024

Trata da aplicação do princípio da insignificância no poder disciplinar sancionador no contexto da execução pena privativa de liberdade. O tema será desenvolvido em quatro etapas, além da introdução e considerações finais. Na primeira seção será abordado o princípio da lesividade, expondo-se brevemente as premissas teóricas para sua aplicação no âmbito da execução. O segundo tópico tratará das bases normativas do princípio da lesividade. A terceira seção abordará a relação entre o poder disciplinar sancionador e o princípio da lesividade, buscando-se identificar, a partir da normativa sobre execução da pena privativa de liberdade no Direito Internacional de Direitos Humanos. O quarto tópico tratará especificamente do princípio da insignificância, identificando-se os parâmetros para sua aplicação como instrumento de controle do poder disciplinar sancionador.
Enhancing Geometry Teaching in STEAM Education with Interactive Learning Environments
Authors:   Department of Informatics, Higher School of Natural Sciences and Pedagogy, Mukhtar Auezov South Kazakhstan University, Shymkent, Kazakhstan, Zhaydakbayeva Lyazzat
Published: September 2024

In confronting the challenge of effectively integrating technology into mathematics education, this study investigates the impact of GeoGebra, an interactive learning tool, on enhancing the understanding of geometry among high school students. Through a rigorous mixed-methods approach, involving 150 students segmented into control and experimental cohorts, this research meticulously assesses the differential outcomes attributable to GeoGebra engagement. Notably, our findings illuminate a significant augmentation in the experimental group’s grasp of geometric concepts, with a pronounced improvement in correlating algebraic and graphical representations of trigonometric functions. This advancement was not merely academic, it corresponded with elevated levels of student engagement and performance. Beyond the anticipated benefits of interactive tools in educational settings, our study contributes novel insights into the specific advantages of GeoGebra within the STEAM curriculum. The results advocate for a more pronounced integration of technology-enhanced learning environments in educational systems, aiming to not only enrich students’ learning experiences but also to prepare them more effectively for the complexities of modern scientific and mathematical problem-solving.
The Effectiveness of Digital Module Based-POE (Predict-Observe-Explain) with Computer-Assisted Feedback to Improve Student Understanding of Physics Concept
Authors:   Department of Physics, Faculty of Mathematics and Science, Universitas Negeri Padang, Padang, Indonesia, Sundari Putri Dwi
Published: September 2024

The objective of this study is to develop a digital module-based Predict-Observe-Explain (POE) in a valid, practical, and efficient form to enhances students’ conceptual understanding of physics. The Plomp model, including three stages—preliminary research, development or prototype phase, and assessment phase—was employed in the experimental research. A questionnaire and interview sheet were used to discover school problems in preliminary research. A digital module-based POE with computer-assisted feedback was designed in the next phase. Around five experts gave their evaluation of the prototype. The practicality test was conducted by one-to-one evaluation (three students) and small group (nine students). The validity and practicality sheets were used in both stages. The assessment phase was conducted as quasi-experiment with pre-post tests design that involving two experiments classes with a total sample of 60 students. The test was used to collect data in this stage. All the data were analyzed using the percentage technique, Aikens’ V formula, N-Gain, and Wilcoxon test. Preliminary research showed that many problems occur in physics learning; students find it difficult to understand physics, there is a limited digital module used in learning, the teacher dominates physics learning, and giving feedback to the students is not optimal. Digital module-based POE with computer-assisted feedback appears as a solution. Based on validity evaluation by experts, it showed that the prototype was valid (V = 0.94). Practicality evaluation by one-to-one and small groups obtained that the product was very practical. Then, the effectiveness test results based on the N-gain showed the improvement of students’ conceptual understanding in the moderate category (0.58 and 0.30 for experiment class and control class, respectively). Based on the Wilcoxon test, Sig. (2-tailed) < 0.05, which indicates a significant effect. In summary, digital module-based POE with computer-assisted feedback effectively improves students’ conceptual understanding of physics.
Comparison of the efficacy of 3% hypertonic saline and 20% mannitol in reducing intracranial pressure in patients with traumatic brain injury
Authors: Prakash Anand , Kumar Vikas , Kumar Deepak , Ali Manjar , Ansari M. Habibullah
Published: September 2024

Background: Objective of the study was to compare the effects of 3% hypertonic saline (HTS) solution and 20% mannitol (MTL) solution on intracranial hypertension.
Methods: The prospective study subjects consisted of 60 patients with traumatic brain injury admitted to the Department of Neurosurgery, RIMS, Ranchi between March 2020 to February 2023. The subjects fulfilling the inclusion criteria were selected and divided into two groups: group A (n=30): treated with 3% HTS, and group B (n=30): treated with 20% MTL.
Results: All the findings were noted on Microsoft excel sheet and data were analyzed using the statistical package for the social sciences (SPSS) 21.0 package. Quantitative data were analyzed using student’s t-test (paired and unpaired) and categorical data were analyzed by the test of proportion, Chi-square, and Fisher’s exact test.
Conclusions: Both 3% HTS and MTL can effectively reduce intracranial pressure, but 3% HTS has a more sustained effect on intracranial pressure and can effectively increase cerebral perfusion pressure.
Presentation of a case of a dermoid cyst with a rare location
Authors: Gazcón Noemí Porras , Carrizales Selene Hernández , Santiago Martin Gallegos , Lara Sampayo Karina Lizbeth , González Suárez Tania Rosalía , Perea Adolfo Martínez , Lozano Rodríguez Mauricio Alejandro , Domínguez Nadia Sarahí Hernández , Morales Hernán Palacios
Published: September 2024

Dermoid cysts are choristoma that accumulate normal embryonic tissue in abnormal locations, making up 3% to 5% of congenital orbit conditions. They are found in various parts of the body, including the head and neck, frontal, periorbital, scalp, cervical, and nasoethmoidal regions. Nasoethmoidal dermoid cysts can compromise deep structures and may extend intracranially, with a frequency of 1% to 45%. They are usually diagnosed in the first 3 years of life, but some may go undetected until adulthood. Two theories explain the origin of nasal dermoids: the cranial origin theory and the superficial inclusion theory. Nasal dermoids can be pale, flesh-colored, pearly, or erythematous and may be accompanied by congenital anomalies. Different diagnoses include epidermal cysts, gliomas, meningoencephaloceles, tumors of vascular origin, fibromas, neurofibromas, osteomas, and lipomas. Imaging evaluations are necessary for diagnosis, determining the degree of involvement of neighboring structures, rule out associated malformations, and establish potential intracranial extension. The only curative treatment for nasoethmoidal dermoid cysts is surgical removal, as untreated lesions can cause nasal deformities, recurrent infections, and intracranial extension.
Unpacking the stress-satisfaction-Performance triangle in the it workforce
Authors: Saxena Rahul , Mathur Nidhi , Agarwal Nimmi
Published: September 2024

The booming Information Technology (IT) sector has led to high job stress due to intense workloads and technological changes worldwide. Examining the relationship between job stress, satisfaction, and performance is vital for employee well-being and productivity in IT industry.

The primary objective of this research was to analyse how job stress and job satisfaction collectively impact job performance in IT sector employees of Delhi-NCR. IT professionals (n=255) working in service-based company from various roles and experience levels were recruited. Participants' perceived levels of job stress, job satisfaction, and job performance using validated scales.

Through statistical analyses, it was observed that higher levels of job satisfaction will be associated with lower job stress and enhanced job performance. Conversely, elevated job stress is expected to correlate with decreased job satisfaction and diminished job performance. The demographic and work-related variables of the study added context to these findings by elucidating personal experiences, working conditions, communication, and contextual factors that may moderate these relationships.

By exploring the multifaceted connections between job stress, job satisfaction, and job performance, this study provides a valuable insight that can inform evidence-based practices for fostering healthier and more productive work environments in the IT industry.
Analyzing the fraud tendency in the Indian Banking sector
Authors: Tirumalaraju Naveen
Published: September 2024

At present, the Indian banking sector is having of worldwide importance for a few years due to its robust regulatory measures and least bank failures during recession and other difficult situations. Banking plays a prominent role in providing required monetary resources for every sector to meet their objectives. At the same time, the banking sector has been facing major challenges like increasing fraudulent cases as Indian banks lost Rs.5.22 lakh crores public money by a way of fraud reporting during the last twelve years, which dents our country’s economy badly. The current study is to analyze the fraud trend and nature wise frauds in Indian public and private sector banks during the period 2012-2023 and further, the current research aims to study the measures taken by Reserve Bank of India and individual banks to curtail the frauds during the said period. Primary data was obtained from bank employees and secondary data from authenticated sources was taken for this study. Our finding revealed that several bank frauds do not differ significantly between the public and private sector banks in terms of amount under cheating & forgery and fraudulent encashment nature. Further, it was observed that fraud amount reporting by public sector banks and private sector banks has been decreasing in trend since 2020 due to the preventive steps initiated by RBI and individual banks.
A research paper on how Artificial Intelligence changes the Human Resource Activities inside the organization and provides the significant improvement in workforce working environment for various day to day decisions making along with their efficiency and their productivity
Authors: Ganatra Nimit Jagdishbhai
Published: September 2024

This paper speaks volumes about the various processes of Human resource like recruitment , training, selections, performance and development and workforce planning and how the Artificial Intelligence has revolutionized over the period of time by providing various insights and supporting in the decision making process.

Artificial intelligence has provided a bias free and advanced algorithms due to which the screening and scheduling of HR process has been done with accurate parameters and lightning fast speed. This study provides a detailed insight to the AI intervention and its effectiveness in providing a great decision making system to the Human resource professionals. This platform is utilizing the sentiment analysis and catboats to monitor and improve the work place environment, which pushes the positivity in work culture and boosts productivity

The AI aids in providing continuous feedback, various goal settings and tracking the performance productivity. This also provides a gist as well as in depth knowledge of top performers of the unit and also share the areas of improvement by which the others can reach up to a new bench mark. This AI has been a boon to the HR individuals thoroughly, especially during the performance appraisals. On the other AI enables personalized training programs and adaptive learning paths, addressing skill gaps and aligning employee development along with organizational goals.

The point to ponder over is that the AI has also played a crucial role in workforce planning and analytics, additionally, it has aided by providing tools to forecast future workforce needs, optimize resource allocation, and enhance strategic decision-making. This process which is done by IA is by analyzing large datasets, AI also predicts turnover trends and informs succession planning, contributing to organizational productive and efficient life cycle

The research has infused a mixed-methods approach, which combines qualitative and quantitative data collection through surveys, interviews, and case studies, alongside statistical analysis of HR metrics pre- and post-AI implementation. The basics of this research paper aims to provide valuable insights for HR professionals and organizational leaders on leveraging AI to enhance HR effectiveness and drive business success. There a strong determination which ensures that the findings will contribute to the evolving body of knowledge on AI in HR and support the development of strategic frameworks for AI adoption in human resource management on a longer run.
Does biasedness starts with HR? - Analysis and outcomes and suggestions for transparent practices
Authors: Pandey Diksha , Ganatra Nimit J
Published: September 2024

HR research has shown that HR practitioners are influenced by different biases in their decision making. But do they know they are biased? This study looks at blind spots. These findings contribute to behavioural research in HR and practical tips to address workplace bias, whether deliberate or not Recognising and addressing biases is key to a fair and inclusive work environment across the globe whether international, national or local to identify common biases and their impact on the organisation and employees as well as ways to mitigate the unfair outcome.

Cultural stereotypes, personal biases and institutionalised practices that unintentionally favour some groups over others are the main sources of HR bias. Gender, race, age and socio-economic status can for example determine who gets hired, evaluated for performance or promoted by employers. Without diversity considerations the result is uniform teams that stifle creativity as marginalisation excludes certain perspectives from consideration through exclusionary means.

The impact of HR bias goes beyond individual employees to the organisation as a whole. Biased HR practices can erode trust in management, reduce employee engagement and increase turnover rates. This in turn can harm the organisation’s reputation making it less attractive to top talent and potentially lead to legal challenges. Biased decision making can also result in suboptimal talent management where the most qualified candidates are overlooked and the organisation’s overall performance is compromised.

To address HR bias you need a 3 prong approach, bias awareness training, standardised and transparent HR processes and a culture of inclusion. Organisations need to actively work to identify and mitigate biases in their HR practices to be fair, equitable and utilise human capital optimally.
Pattern of occupational shift among Malabar migrants: a case study of Kallar grama panchayath in Kerala
Authors: Karunakaran N. , Praveenkumar P.
Published: September 2024

The impact of the migration on the economy of Kerala in general and of Malabar in particular needs special mention. Large scale production of commercial crops like rubber, ginger, pepper, arecanut and coconut, advanced methods of cultivation and the introduction of new agricultural crops are some of the aspects to be highlighted. Migration to Malabar turned out to be a mass movement, as migration of half a million people took place without any design, organisation or leadership. Famine was a driving force behind large scale migration. Land prices were very low as compared with Travancore. The increasing tendency of cultivation of commercial crops helped the migration. It is a form of agriculture to agriculture migration, anticipating a long run improvement and can be perceived as a human capital decision. This often leads to change of traditional occupation to other and substantial socio economic development. The immigrant people change their occupation from agriculture or agricultural labour to industrial labour or some other jobs. The present study focuses the changes that take place in the occupational pattern of the Malabar migrants in Kallar Grama Panchayath in Kasaragod district of Kerala
Dopamine manipulation and its role in effective advertising
Authors: Panigrahi Ashok , Arunima De
Published: September 2024

Dopamine — A neurotransmitter that plays a key role in the way the brain controls reward and pleasure centres as well as motivation. This relationship is significant because in the world of advertising where companies seek to link their products more favourably with emotional reactions it plays a lead role. This study investigates how dopamine interacts with various advertising genres, focusing on digital and traditional marketing strategies that affect consumer behaviour. The research examines how marketers can exploit dopamine-triggered reactions to lift revenues and boost customer engagement. The research aimed to find out what marketing strategies most successfully trigger the dopamine release processes and hence increase the likelihood of making a purchase.
The role of artificial intelligence in enhancing surgical precision and outcomes
Authors: Shetti Akshaya N , Ingale Prasad Chandrakant , Mavi Sunny , Chaudhari Srusti Pandurang , Doshi Suraj Sudarshan
Published: September 2024

Artificial intelligence (AI) is transforming surgery by enhancing precision and improving patient outcomes. AI-driven tools enable accurate preoperative planning, real-time intraoperative navigation, and effective postoperative care. These advancements allow surgeons to navigate complex anatomical structures with greater accuracy, reduce errors, and optimize recovery processes using predictive analytics. Case studies across various surgical disciplines demonstrate significant improvements in both accuracy and efficiency. This review also addresses ethical considerations, challenges, and future trends, emphasizing AI's potential to revolutionize surgical precision and patient care, leading to better overall outcomes.
The role of collagen gel in the management of burns
Authors: Chittoria Ravi Kumar , Venkatesh P  , Reddy J Bharat Prakash
Published: September 2024

Many studies have been conducted on the use of biological dressings for burn wounds; collagen- and human amnion-based dressings are commonly used. Commercially available dry sheets based on collagen were used for the dressing. When changing their clothes, the patient may experience discomfort due to these dry sheets of collagen adhering to their skin. We are discussing our experience using topical collagen gel to treat a burn in this article. The preparation that was utilized was a gel-based preparation that contained 0.1% gentamicin sulphate and collagen of pure bovine origin, namely Type I collagen. Our research shows that this biological dressing has more benefits than downsides
The subtle effects of the piece-wise -linear system self-similar behaviour near the line of the torus birth bifurcation
Authors:   Saratov State University, Kipchatov Aleksei , Koronovskii Aleksei ,   Saratov State University
Published: September 2024

The piece—wise linear system with 1.5 degrees of freedom which is able to demonstrate the two—frequency dynamics without the external action has been investigated in this article. It has been shown that the behaviour of this system near the line of the torus birth bifurcation is self-similar and very complicated. The tongues of synchronisation converge to the line of the torus birth bifurcation. There are another lines of torus birth bifurcation оп the tongues of synchronisation. The intersection of these lines results in the birth of the new quasiperiodic oscillation types, and so on.
The multiplicators of periodical solutions for the generator with the piece-wise linear element
Authors:   Saratov State University, Koronovskii Aleksei
Published: September 2024

This article deals with systems with с phase space consisting of three linear subspaces. These systems аге described by n ordinary linear differential equations with plece~wise linear functions in their right side. The equations allowing to find the periodical solutions of these systems and its multiplicators depending upon the values of control parameters have been obtained. It allows to trace the regimes maps in the space of control parameters.
Dynamics of model systems with discrete time driven by binary self-similar sequences
Authors:   Saratov Branch of Kotel`nikov Institute of Radiophysics and Electronics of Russian Academy of Sciences, Kuptsov Pavel , Kuznetsov Sergey ,   Saratov Branch of Kotel`nikov Institute of Radiophysics and Electronics of Russian Academy of Sciences
Published: September 2024

The dynamics of the 1D walking particle and the mao with pitch—fork bifurcation is considered when these model systems are forced by the self—similar sequences of two symbols constructed in accordance with substitution (inflation) rules. All such sequences are found to be divided into three classes which correspond to qualitatively different sorts of observed dynamics. It is shown that the matrix 2x2 is associated with the binary self— similar sequence and the one of eigenvalues of this characteristic matrix determines the class to what respective sequence belongs.
Superradiance of two-component spatial inhomogeneous media
Authors:   Innopolis University, Andreev Andrey , Sheetlin Sergei ,   Lomonosov Moscow State University
Published: September 2024

The two—component superradiative medium consists of two species of atoms with the different dipole moments of the quasi-resonant transitions. The atoms with the smaller dipole moment are initially in the excited state, while е atoms of the second type are initially in the ground state. In the initial stage of the superradiance dynamics the first component is amplifying one, the second component is resonantly absorbing. By varying the concentration of the resonantly absorbing atoms it is possible to increase the intensity of superradiance in the few order of magnitude with respect to the monocomponent medium of the amplifying atoms alone. Here we show that the variation in the distribution of the component densities enables us the additional possibilities in the control of the superradiance pulse parameters. The additional increase in the order of magnitude for the peak pulse intensity is obtained at the optimal distribution. The nature of such variation in the pulse profile and its intensity is due to the opportunity for the effective spatial mode selection in the spatial inhomogeneous media. We discuss the algorithms of е numerical solution and show that the enhanced accuracy methods can be developed in this case.
The dynamics of maps with the threshold type of coupling
Authors:   Saratov State University, Koronovskii Aleksei , Ponomarenko Vladimir ,   Saratov Branch of Kotel`nikov Institute of Radiophysics and Electronics of Russian Academy of Sciences, Trubetskov Dmitriy ,   Saratov State University
Published: September 2024

This article deals with the system of logistic maps with the radically new coupling type. The behaviour of this system differs radically from the behaviour of the logistic maps with the traditional coupling types. The investigation of these systems has been carried out both numerically and with the help of the radio—engineering experiment. We have obtained two-parameter regimes maps оп the control parameters plane.
Probability characteristics of «beast-sacrifice» system with random fluctuations of parameters
Authors:   Nizhny Novgorod State University of Architecture, Muzychuk Oleg
Published: September 2024

Well-known Lottky — Volterra scheme for self-regulated «beast—sacrifice» associations with random fluctuations of habitat conditions was considered. Fluctuationsof parameters werc supposed аs the Gaussian delta—correlated stochastic processes. Stationary mean—square characteristics of populations numbers were obtained The situation was considered in more detail when only trophical coefficient fluctuations of «sacrifices» take place. Stationary probability densities of populations numbers were investigated. Closed equations described relaxation of mean values and dispersions were obtained and solved by computer. It was obtained in particular, that when fluctuations of the trophical cocfficient are too intensive, the system enters thecritical regime, when maximums of probability densitics move to zero. That time the relaxation scales for mean values and dispersions increase and the process of relaxation proceeds with essential oscillations.
"Historical mechanics" and nonlinear dynamics
Authors:   Keldysh Institute of Applied Mathematics (Russian Academy of Sciences), Malinetskii Georgij
Published: September 2024

The paper proposes to develop a new interdisciplinary approach called historical mechanics. This approach is aimed at analyzing not only one realized trajectory of development of any civilization or ethnic group, but also at analyzing the field of possibilities, "virtual trajectories of community development," bifurcation points. The paper introduces a new class of mathematical models — dynamic systems with jokers, which may be useful in studying social and historical processes. The relationship between L. N. Gumilev's theory of ethnogenesis and models of the theory of self-organized criticality is discussed. Currently, many humanitarian universities offer courses in natural science with elements of nonlinear dynamics. Practice shows that these disciplines arouse keen interest if humanists see the possibility of a meaningful dialogue between humanitarian and natural science culture. An attempt at such a dialogue is contained in the proposed article.
An experience of presenting synergetics in a textbook of physical chemistry
Authors:   the National Research Tomsk Polytechnic University, Stromberg Armin
Published: September 2024

The author shares his experience of presenting the basic concepts of synergetics in a physical chemistry textbook and illustrating them using the example of an autocatalytic oscillatory reaction.
Nonlinear shear flow in rotating spherical layers and global atmosphere motion modelling
Authors:   Lomonosov Moscow State University, Astafyeva Natalia
Published: September 2024

The influence of vorticity and the restoring effectiveness of Coriolise force are considered. There are the some examples for illustration: the simple theoretical models which are used ordinary for dynamic meteorology and oceanology simulation and the certain peculiarity of the classical flows between rotating discs, cylinders and spheres. Thete are also the results of the numerical investigation of the flow in rotating spherical layers and their instability. The possibilities of the numerical simulation of global atmosphere dynamics are discussed.
Numerical modelling of the evolution of dynamical regimes in autooscillatory system with frequency control
Authors:   nstitute of Applied Mathematics and Cybernetics. Nizhny Novgorod state University, Ponomarenko Valerij
Published: September 2024

The results of investigation of the regular and chaotic oscillations and their bifurcations in irequency controlled autogenerator in the case of positive feedback in control loop are presented. Numerical simulation of the equations which describe the dynamics of the system reveals the ways of parameter changes promoting stochastization of regular oscillations and destochastization of chaotic ones.
Dynamic copying in multi-layered bistable lattices
Authors:   Institute of Applied Physics of the Russian Academy of Sciences, Nekorkin Vladimir , Kazantsev Viktor ,   Institute of Applied Physics of the Russian Academy of Sciences, Velarde Manuel ,   Aix-Marseille Universite
Published: September 2024

The dynamics of a number of interacting square lattices (layers) composed of oscillators with a hard mode of excitation is studied. Such an oscillator has the rest state and the excited state which correspond to the stable steady point and stable limit cycle in its phase plane, respectively. The oscillators are comnected in the lattice by means of diffusive coupling. Studying the interaction between the layers we find that for certain conditions the multi layered system processes the phenomenon of dynamic copying (replication) of a given regular image (stimulus). It looks like when this image coded as the amplitude pattern in one of the layers is replicated through interlayer interaction by the amplitudes of the rest layers which have been initially in a spatially disordered state. We provide a qualitative description of this process from the viewpoint of nonlinear dynamics. We also study its stability with respect to possible external weak noise signals.
Solar activity and solar flux oscillations
Authors:   Saratov State University, Sklyarov Yury , Dvinskikh Vasilii ,   Moscow Power Engineering Institute (MPEI), Brichkov Yury ,   Saratov State University, Vorobyov Vladimir ,   Saratov State University, Kotuma Alexandr ,   Saratov State University
Published: September 2024

The conditions of full orbit solar flux observation by Solar Constant Monitor (SCM-2) from «Meteor—3» № 7 satellite in February 1995 are described. The power spectra of such daily measurement series of 108 min. duration during two weeks are obtained. The total solar flux oscillations (not registered earlier) with periods range 6-15 min. and amplitudes of 10-4 order of its value were detected when solar activity became more intense.
Some particularities of dynamical behaviour of two cascade coupled phase locked loops
Authors:   Lobachevsky State University of Nizhny Novgorod, Matrosov Valerij
Published: September 2024

Results of investigations of dynamic regimes and their bifurcations in the model on phase torus of two cascade coupled phase locked loops are presented.
Nonauthonomous oscillations of electron beam with virtual cathode in the planar diode region
Authors:   Saratov State University, Anfinogentov Vasilij , Hramov Aleksandr ,   Immanuel Kant Baltic Federal University
Published: September 2024

The influence of external action on the oscillations of electron beam with virtual cathode in the planar diode is investigated. The results of numerical simulations are shown for model with modulated electron beam and model with action of external signal on the virtual cathode oscillation. It is shown that system demonstrates different nonlinear oscillations, including deterministic chaos and synchronization regimes. Features of both types of external action are considered and it is shown that modulation is the most effective method of control of the virtual cathode oscillation. The investigation of physical processes in the system demonstrates appearance of complex behaviour as а result of structure interaction in the beam. Synchronization regimes are connected with suppression of structure growth. Phase correlations between external signal and virtual cathode oscillations obtained from numerical simulations and physical experiments are in the good agreement.
Machine Learning for Enhanced Churn Prediction in Banking: Leveraging Oversampling and Stacking Techniques
Authors: Faruq Omar , Ahammed Fahad , Mily Arifa Sultana , Islam 4Ashraful
Published: September 2024

Every sector of business is getting more competitive as time passes. More and more companies are offering services to people. Banking sector is no different. With the plethora option customer has in terms banking, holding on to customer may prove difficult for banks. This research will help banks to predict which customers are likely going to churn and allow them to take precaution to stop customers from leaving. In this study we have used classifiers such as: K-Neighbors, Random Forest, XGboost, Adaboost classifiers and Ensemble Model (Stacking Technique) that uses all of these models together. The experimentation was conducted on a dataset from Kaggle. The dataset used in this research was heavily imbalanced. So, different oversampling methods like Random Oversampling and SMOTE-ENN have been used. In data preprocessing, label encoding was done and for validation K-folding technique (k-5) have been used. The highest accuracy has been achieved by using Random Oversampling with Stacking Model which is 97.31% (std: 0.0033, k=5).
Análise do desempenho lumínico e térmico de apartamentos studio nos cenários climáticos atual e futuro na cidade de São Paulo
Authors: Milani de Quadros Bianca , Gomes Viana Shaiane , Bertrand Nazareth Samuel , Ceriani Pascual , Silva Duarte Denise Helena
Published: September 2024

O adensamento e verticalização urbana impactam em transformações no desempenho das edificações. O presente artigo tem como objetivo avaliar o desempenho térmico e lumínico de apartamentos do tipo studio face à estimativa do aumento de temperatura do RCP8.5 para a cidade de São Paulo/SP. Para isto, foi realizado um estudo de caso em um edifício com apartamentos studio construído recentemente. Por meio dos softwares Grasshopper e EnergyPlus, foram simulados quatro cenários: o primeiro com a condição existente edificada considerando o clima atual, um segundo hipotético na condição verticalizada com clima atual, um terceiro com a condição existente considerando clima futuro e um último na condição verticalizada com clima futuro. A avaliação do desempenho térmico e lumínico tem como critério os parâmetros das normas LM-83-12 e NBR15.575. Os resultados demonstram que, apesar da verticalização, a iluminância dos ambientes internos em todos os apartamentos atende à norma LM-83-12 e atinge o nível de desempenho superior da norma NBR15.575. Com relação ao desempenho térmico, o sombreamento do entorno imediato sobre a edificação diminui o tempo de exposição da envoltória à radiação solar direta, resultando em uma redução da temperatura máxima no interior da edificação de 2,6°C.  Apesar disto, a redução da temperatura máxima não foi suficiente para o atendimento do nível de desempenho térmico mínimo exigido pela NBR15.575. Destaca-se ainda que o efeito mais significativo da mudança climática ocorre pela elevação das temperaturas mínimas do ar interno nos studios analisados, com aumento de até 7ºC nos casos simulados com arquivo climático futuro.
Análise de componentes principais em dados agrícolas de produção de soja
Authors: Queiroz Rafael , Silva Fabiane , Hongyu Kuang
Published: September 2024

O agronegócio desempenha um papel fundamental na economia brasileira, contribuindo significativamente para o crescimento do país. Este artigo tem como objetivo realizar uma análise de dados do agronegócio utilizando a técnica de análise de componentes principais por meio da matriz de correlação, validando sua relevância para o setor e apresentar as possibilidades que o uso de técnicas estatísticas trás para a maximização de produção de soja na lavoura. As variáveis selecionadas para análise incluem: área, dose por hectare, quantidade consumo, área execução, dose real, valor, vazão, peso bruto, impureza e umidade, a técnica de análise de componentes principais foi aplicada para reduzir a dimensionalidade dos dados, identificar padrões subjacentes e investigar as relações entre as variáveis selecionadas. O critério de Kaiser foi utilizado para validar a adequação dos dados à análise de componentes principais, considerando os autovalores das variáveis para determinar o número de componentes principais significativos a serem retidos. Dessa forma, conclui-se que a análise de componentes principais além de ser uma ótima forma de economizar recursos computacionais minimizando o volume de variáveis a serem analisadas, também explica de forma satisfatória o comportamento dinâmico das informações, provando a relevância da técnica para compreensão das peculiaridades da produção de soja na agricultura e fornecer oportunidades valiosas para tomada de decisão estratégica.