bluuebunny/crossref_metadata_2025 huggingface dataset:
Energy Storage Capacity Configuration Planning Considering Dual Scenarios of Peak Shaving and Emergency Frequency Regulation
Authors: Chen Xiaozheng , Nan Dongliang , Xiong Xiaofu , Chen Hongzhou , Ma Wenqing
Published: April 2024

New energy storage methods based on electrochemistry can not only participate in peak shaving of the power grid but also provide inertia and emergency power support. It is necessary to analyze the planning problem of energy storage from multiple application scenarios, such as peak shaving and emergency frequency regulation. This article proposes an energy storage capacity configuration planning method that considers both peak shaving and emergency frequency regulation scenarios. A frequency response model based on emergency frequency regulation combined with low-frequency load shedding is established, taking into account the frequency safety constraints of the system and the principle of idle time reuse, to establish a bi-level programming model. In the upper-level model, the optimization objective is to minimize the annual operating cost of the system during the planning period, combined with the constraints of power grid operation to plan the energy storage capacity. The lower-level model embeds frequency safety constraints with the optimization objective of minimizing the cost of fault losses. To solve the bi-level optimization problem, the Karush–Kuhn–Tucher (KKT) condition and Big-M method were used to transform the bi-level model into a single-layer linear model. Finally, an improved IEEE RTS-24 system was used for numerical verification. The results show that the method proposed in this article can reasonably plan the capacity of energy storage, improve frequency safety during system operation, and reduce the operating cost of the power grid.
Separation of Cellulose from Wastewater and Valorisation via Pyrolysis: A Case Study in the Czech Republic
Authors: Djordjevićová Denisa , Carnevale Miino Marco , Raček Jakub , Chorazy Tomáš , Hlavínek Petr , Vranayova Zuzana
Published: April 2024

Currently, the recovery of resources from urban wastewater (WW) represents a priority. On this topic, the potential recovery of cellulose for its subsequent reuse in different sectors is gaining interest. In this work, a large-size conventional wastewater treatment plant (WWTP) was selected as a case study. A preliminary mechanical treatment was used, with the aim of separating, quantifying, and characterizing cellulose in WW. The results suggest that the per-capita production of dry primary cellulosic sludge (D-PCS) is equal to 1.46 ± 0.13 kgD-PCS PE−1 y−1, with an average calorific value of 21.04 MJ kg−1DM. Cellulosic fibres have an average length of >100 µm and a thickness of 2–5 µm. The D-PCS was subsequently treated via medium-temperature pyrolysis; a total of 29.5% of the initial D-PCS was converted into pyrolyzed primary cellulosic sludge (P-PCS) and only 26% into pyrolytic gas. More than 44.5% of the dried cellulose can be converted into pyrolytic oil. Moreover, three different scenarios of recovery have been considered, and the impact of cellulose separation in terms of COD fluxes entering the WWTP and potential energy recovery has been studied. The results suggested that, in this case study, the potential separation of the primary cellulosic sludge from the influent water flux would have no significant impact on COD load entering the biological treatments and biogas production in the anaerobic digestion of the secondary sludge.
PDT-YOLO: A Roadside Object-Detection Algorithm for Multiscale and Occluded Targets
Authors: Liu Ruoying , Huang Miaohua , Wang Liangzi , Bi Chengcheng , Tao Ye
Published: April 2024

To tackle the challenges of weak sensing capacity for multi-scale objects, high missed detection rates for occluded targets, and difficulties for model deployment in detection tasks of intelligent roadside perception systems, the PDT-YOLO algorithm based on YOLOv7-tiny is proposed. Firstly, we introduce the intra-scale feature interaction module (AIFI) and reconstruct the feature pyramid structure to enhance the detection accuracy of multi-scale targets. Secondly, a lightweight convolution module (GSConv) is introduced to construct a multi-scale efficient layer aggregation network module (ETG), enhancing the network feature extraction ability while maintaining weight. Thirdly, multi-attention mechanisms are integrated to optimize the feature expression ability of occluded targets in complex scenarios, Finally, Wise-IoU with a dynamic non-monotonic focusing mechanism improves the accuracy and generalization ability of model sensing. Compared with YOLOv7-tiny, PDT-YOLO on the DAIR-V2X-C dataset improves mAP50 and mAP50:95 by 4.6% and 12.8%, with a parameter count of 6.1 million; on the IVODC dataset by 15.7% and 11.1%. We deployed the PDT-YOLO in an actual traffic environment based on a robot operating system (ROS), with a detection frame rate of 90 FPS, which can meet the needs of roadside object detection and edge deployment in complex traffic scenes.
t/k-Diagnosability of Regular Networks under the Comparison Model
Authors: Liang Jiarong , Xiao Mengdie , Lin Zhi , Li Changzhen
Published: April 2024

As multiprocessor systems continue to grow in processor scale, the incidence of faults also increases. As a result, fault diagnosis is becoming a key mechanism for maintaining the normal operation of multiprocessor systems. To explore more effective diagnostic methods, Somani et al. introduced a generalized pessimistic diagnostic strategy, named t/k-diagnosis, in which all faulty nodes are isolated in a set of nodes and at most k fault-free nodes are misdiagnosed, provided that the quantity of faults is limited by t. By imposing certain conditions or restrictions, the t/k-diagnosability of some regular networks under the Preparata, Metze, and Chien (PMC) model has been determined. However, the t/k-diagnosability of many networks under the comparison model remains unidentified. In this paper, we provide new insights into the study of t/k-diagnosability under the comparison model. After introducing some new notions, such as the 0-test unit, 0-test set and 0-test subgraph, under the comparison model, we study the relationship in a system G between the 0-test subgraphs and the components of G−F, where F is the set of faulty nodes, and we obtain some important correlation properties. Based on these results, we study t/k-diagnosability under the comparison model. As a result, the t/k-diagnosability of some regular interconnection networks can be efficiently determined.
KARATECH: A Practice Support System Using an Accelerometer to Reduce the Preliminary Actions of Karate
Authors: Kim Kwangyun , Tsuchida Shuhei , Terada Tsutomu , Tsukamoto Masahiko
Published: April 2024

Kumite is a karate sparring competition in which two players face off and perform offensive and defensive techniques. Depending on the players, there may be preliminary actions (hereinafter referred to as “pre-actions”), such as pulling the arms or legs, lowering the shoulders, etc., just before a technique is performed. Since the presence of a pre-action allows the opponent to know the timing of the technique, it is important to reduce pre-actions in order to improve the kumite. However, it is difficult for beginners and intermediate players to accurately identify their pre-actions and to improve them through practice. Therefore, this study aims to construct a practice support system that enables beginners and intermediate players to understand their pre-actions. In this paper, we focus on the forefist punch, one of kumite’s punching techniques. We propose a method to estimate the presence or absence of a pre-action based on the similarity between the acceleration data of an arbitrary forefist punch and a previously prepared dataset consisting of acceleration data of the forefist punch without a pre-action. We found that the proposed method can estimate the presence or absence of a pre-action in an arbitrary forefist punch with an accuracy of 86%. We also developed KARATECH as a system to support the practice of reducing pre-actions using the proposed method. KARATECH shows the presence or absence of pre-actions through videos and graphs. The evaluation results confirmed that the group using KARATECH had a lower pre-action rate.
A Two-Step Regional Ionospheric Modeling Approach for PPP-RTK
Authors: Xu Zhenyu , Cai Changsheng , Pan Lin , Dai Wujiao , He Bei
Published: April 2024

In the precise point positioning/real-time kinematic (PPP-RTK) technique, high-precision ionospheric delay correction information is an important prerequisite for rapid PPP convergence. The commonly used ionospheric modeling approaches in the PPP-RTKs only take the trend term of the ionospheric total electron content (TEC) variations into account. As a result, the residual ionospheric delay still affects the positioning solutions. In this study, we propose a two-step regional ionospheric modeling approach that involves combining a polynomial fitting model (PFM) and a Kriging interpolation (KI) model. In the first step, a polynomial fitting method is used to model the trend term of the ionospheric TEC variations. In the second step, a KI method is used to compensate for the residual term of the ionospheric TEC variations. Datasets collected from continuously operating reference stations (CORSs) in Hunan Province, China, are used to validate the PFM/KI method by comparing with a single PFM method and a combined PFM and inverse distance weighting interpolation (IDWI) method. The experimental results show that the two-step PFM/KI modeled ionospheric delay achieves an average root mean square (RMS) error of 1.8 cm, which is improved by about 48% and 23% when compared with the PFM and PFM/IDWI methods, respectively. Regarding the positioning performance, the PPP-RTK with the PFM/KI method takes an average of 1.8 min or 4.0 min to converge to a positioning accuracy of 1.3 cm or 2.5 cm in the horizontal and vertical directions, respectively. The convergence times are decreased by about 18% and 14% in the horizontal direction and 9% and 5% in the vertical direction over the PFM and the PFM/IDWI methods, respectively.
Research on Soil Management and Conservation
Authors: Suzuki Luis Eduardo Akiyoshi Sanches
Published: April 2024

The soil is the base of a sustainable agricultural system; it is the key for food and energy production, a reservoir of water and nutrients [...]
Stock of Carbon and Soil Organic Fractions in No-Tillage and Crop–Livestock Integration Systems
Authors: Ferreira Camila dos Santos , Tavares Rose Luiza Moraes , Paiva Filho Silvio Vasconcelos de , Cantão Veridiana Cardozo Gonçalves , Simon Gustavo André , Alves José Milton , Nascimento Hemython Luis Bandeira do , Bilego Ubirajara Oliveira
Published: April 2024

Soil use and management practices influence the quantity and quality of soil organic matter (SOM). From this perspective, the objective of this work was to evaluate the carbon stock and SOM fractions in a no-tillage (NT) and crop–livestock integration (CL) system in the Cerrado biome. The treatments were divided into four areas, subdivided into an area under NT with 11 years of cultivation, two areas under CL with 5 or 10 years of cultivation, and an area of native vegetation (NV). Undisturbed and disturbed soil (Ferralsols) samples were collected in layers 0.0–0.1, 0.1–0.2, 0.2–0.4, and 0.4–0.6 m for the evaluations of soil properties, including bulk density, weighted mean diameter, clay content, carbon stock, carbon stock of light and mineral fractions, humification rate, and carbon management index. The results obtained suggest that the environments with the highest conservation of the physical properties of the soil are those that contain the highest levels of stable C. The main mechanism for C protection in the systems evaluated was mainly associated with physical protection, promoted by soil aggregates, capable of keeping C protected, and mitigation of C into the atmosphere. The values of the carbon management index in the agriculture areas were >100, indicating that these production systems could approach the soil quality of the native vegetation reference system.
An Evaluation Study on Tourists’ Environmental Satisfaction after Re-Use of Industrial Heritage Buildings
Authors: Han Chenqi , Song Yimin , Zhao Yang
Published: April 2024

As a witness to history, industrial heritage embodies the cultural, technological, and economic values of a particular era. Transforming it into a cultural and creative park can imbue new functions and vitality, supporting and promoting sustainable urban development. This paper focuses on the Mili Cultural and Creative Park in Quanzhou as its research subject. Through interviews and questionnaire analyses from the perspective of tourists, five evaluation factors are extracted: spatial environmental elements, social cultural elements, landscape and greening elements, supporting facilities elements, and transportation and location elements. An analysis of tourist satisfaction using the semantic differential method reveals a higher satisfaction with spatial environmental elements, social cultural elements, and landscape and greening elements, while satisfaction with supporting facilities elements and transportation location elements is low. Additionally, the modified IPA method is employed for the analysis, revealing poor overall performance in supporting facilities elements and transportation and location elements. In subsequent efforts, priority should be given to improving the quantity and reasonable distribution of garbage cans, organization of events in the park, traffic conditions outside the park, parking around the park, and park accessibility. The aim is to further optimize the environment after the reuse of industrial heritage, enhance tourist satisfaction, and promote urban sustainability.
Repair and Reuse or Recycle: What Is Best for Small WEEE in Australia?
Authors: Jayasiri Gimhan , Herat Sunil , Kaparaju Prasad
Published: April 2024

The global and Australian trends indicate a steady increase in the generation of small waste electrical and electronic equipment (WEEE), constituting 30% of global WEEE in 2019 with an expected 90% increase in Australia over the next 25 years. Given this fact, identifying the most suitable circular economy strategy is vital in managing this waste stream. Hence, followed by a review of the literature, a model was developed to assess the suitability of repair, reuse, and recycling of small electrical and electronic equipment (EEE) by considering the lifespan and products put on the market (PoM) as critical variables. Findings indicate that solely repairing and reusing products, without reducing PoM small EEE, minimally affects short-term waste reduction. A synergistic approach, combining high product reuse with reduced PoM small EEE, is essential to decrease small WEEE generation significantly. Regardless of lifespan changes, the study indicates a proportional relationship between small WEEE generation rates and PoM small EEE changes, emphasising the need for a holistic strategy. Considering this, within stewardship schemes, the primary focus should initially lie on repairing and repurposing small EEE, with the potential for expansion into recycling once sufficient infrastructure and achievable recovery goals are established. Original equipment manufacturers (OEMs) must shoulder substantial accountability, with a firm commitment to extended producer responsibility (EPR) even for historical products. The initial rollout could target four specific categories: toys, food preparation equipment, vacuum cleaners, and household tools, with the scope widening to encompass all categories following successful implementation.
Theoretical Investigation and Improvement of Characteristics of InAs/GaAs Quantum Dot Intermediate Band Solar Cells by Optimizing Quantum Dot Dimensions
Authors: Farhadipour Farzad , Olyaee Saeed , Kosarian Abdolnabi
Published: April 2024

Quantum dot (QD)-based solar cells have been the focus of extensive research. One of the critical challenges in this field is optimizing the size and placement of QDs within the cells to enhance light absorption and overall efficiency. This paper theoretically investigates InAs/GaAs QD intermediate band solar cells (QD-IBSC) employing cylindrical QDs. The goal is to explore factors affecting light absorption and efficiency in QD-IBSC, such as the positioning of QDs, their dimensions, and the spacing (pitch) between the centers of adjacent dots. Achieving optimal values to enhance cell efficiency involves modifying and optimizing these QD parameters. This study involves an analysis of more than 500 frequency points to optimize parameters and evaluate efficiency under three distinct conditions: output power optimization, short-circuit current optimization, and generation rate optimization. The results indicate that optimizing the short-circuit current leads to the highest efficiency compared to the other conditions. Under optimized conditions, the efficiency and current density increase to 34.3% and 38.42 mA/cm2, respectively, representing a remarkable improvement of 15% and 22% compared to the reference cell.
FGeo-DRL: Deductive Reasoning for Geometric Problems through Deep Reinforcement Learning
Authors: Zou Jia , Zhang Xiaokai , He Yiming , Zhu Na , Leng Tuo
Published: April 2024

Human-like automatic deductive reasoning has always been one of the most challenging open problems in the interdisciplinary field of mathematics and artificial intelligence. This paper is the third in a series of our works. We built a neural-symbolic system, named FGeo-DRL, to automatically perform human-like geometric deductive reasoning. The neural part is an AI agent based on deep reinforcement learning, capable of autonomously learning problem-solving methods from the feedback of a formalized environment, without the need for human supervision. It leverages a pre-trained natural language model to establish a policy network for theorem selection and employ Monte Carlo Tree Search for heuristic exploration. The symbolic part is a reinforcement learning environment based on geometry formalization theory and FormalGeo, which models geometric problem solving (GPS) as a Markov Decision Process (MDP). In the formal symbolic system, the symmetry of plane geometric transformations ensures the uniqueness of geometric problems when converted into states. Finally, the known conditions and objectives of the problem form the state space, while the set of theorems forms the action space. Leveraging FGeo-DRL, we have achieved readable and verifiable automated solutions to geometric problems. Experiments conducted on the formalgeo7k dataset have achieved a problem-solving success rate of 86.40%.
The Comet Assay as a Tool in Human Biomonitoring Studies of Environmental and Occupational Exposure to Chemicals—A Systematic Scoping Review
Authors: Ladeira Carina , Møller Peter , Giovannelli Lisa , Gajski Goran , Haveric Anja , Bankoglu Ezgi Eyluel , Azqueta Amaya , Gerić Marko , Stopper Helga , Cabêda José , Tonin Fernanda S. , Collins Andrew
Published: April 2024

Biomonitoring of human populations exposed to chemical substances that can act as potential mutagens or carcinogens, may enable the detection of damage and early disease prevention. In recent years, the comet assay has become an important tool for assessing DNA damage, both in environmental and occupational exposure contexts. To evidence the role of the comet assay in human biomonitoring, we have analysed original research studies of environmental or occupational exposure that used the comet assay in their assessments, following the PRISMA-ScR method (preferred reporting items for systematic reviews and meta-analyses extension for scoping reviews). Groups of chemicals were designated according to a broad classification, and the results obtained from over 300 original studies (n = 123 on air pollutants, n = 14 on anaesthetics, n = 18 on antineoplastic drugs, n = 57 on heavy metals, n = 59 on pesticides, and n = 49 on solvents) showed overall higher values of DNA strand breaks in the exposed subjects in comparison with the unexposed. In summary, our systematic scoping review strengthens the relevance of the use of the comet assay in assessing DNA damage in human biomonitoring studies.
A Comparison of In Vitro Points of Departure with Human Blood Levels for Per- and Polyfluoroalkyl Substances (PFAS)
Authors: Judson Richard S. , Smith Doris , DeVito Michael , Wambaugh John F. , Wetmore Barbara A. , Paul Friedman Katie , Patlewicz Grace , Thomas Russell S. , Sayre Risa R. , Olker Jennifer H. , Degitz Sigmund , Padilla Stephanie , Harrill Joshua A. , Shafer Timothy , Carstens Kelly E.
Published: April 2024

Per- and polyfluoroalkyl substances (PFAS) are widely used, and their fluorinated state contributes to unique uses and stability but also long half-lives in the environment and humans. PFAS have been shown to be toxic, leading to immunosuppression, cancer, and other adverse health outcomes. Only a small fraction of the PFAS in commerce have been evaluated for toxicity using in vivo tests, which leads to a need to prioritize which compounds to examine further. Here, we demonstrate a prioritization approach that combines human biomonitoring data (blood concentrations) with bioactivity data (concentrations at which bioactivity is observed in vitro) for 31 PFAS. The in vitro data are taken from a battery of cell-based assays, mostly run on human cells. The result is a Bioactive Concentration to Blood Concentration Ratio (BCBCR), similar to a margin of exposure (MoE). Chemicals with low BCBCR values could then be prioritized for further risk assessment. Using this method, two of the PFAS, PFOA (Perfluorooctanoic Acid) and PFOS (Perfluorooctane Sulfonic Acid), have BCBCR values < 1 for some populations. An additional 9 PFAS have BCBCR values < 100 for some populations. This study shows a promising approach to screening level risk assessments of compounds such as PFAS that are long-lived in humans and other species.
Specific and Nonspecific Effects of Influenza Vaccines
Authors: Principi Nicola , Esposito Susanna
Published: April 2024

With the introduction of the influenza vaccine in the official immunization schedule of most countries, several data regarding the efficacy, tolerability, and safety of influenza immunization were collected worldwide. Interestingly, together with the confirmation that influenza vaccines are effective in reducing the incidence of influenza virus infection and the incidence and severity of influenza disease, epidemiological data have indicated that influenza immunization could be useful for controlling antimicrobial resistance (AMR) development. Knowledge of the reliability of these findings seems essential for precise quantification of the clinical relevance of influenza immunization. If definitively confirmed, these findings can have a relevant impact on influenza vaccine development and use. Moreover, they can be used to convince even the most recalcitrant health authorities of the need to extend influenza immunization to the entire population. In this narrative review, present knowledge regarding these particular aspects of influenza immunization is discussed. Literature analysis showed that the specific effects of influenza immunization are great enough per se to recommend systematic annual immunization of younger children, old people, and all individuals with severe chronic underlying diseases. Moreover, influenza immunization can significantly contribute to limiting the emergence of antimicrobial resistance. The problem of the possible nonspecific effects of influenza vaccines remains unsolved. The definition of their role as inducers of trained immunity seems essential not only to evaluate how much they play a role in the prevention of infectious diseases but also to evaluate whether they can be used to prevent and treat clinical conditions in which chronic inflammation and autoimmunity play a fundamental pathogenetic role.
EFEITO DA LUMINOSIDADE SOBRE A EMERGÊNCIA E O DESENVOLVIMENTO DE PLANTAS DE BARU (Dipteryx alata Vog Fabaceae)
Authors: Previero Conceição Aparecida , Campelo Pedro Henrique
Published: April 2024

Características ecológicas e fitossociológicas exercem uma grande influência na emergência e germinação de espécies nativas.  Plantas como o baru se desenvolvem em ambientes de cerrado e em cerradão. Trata-se de uma espécie de porte arbóreo, com aptidão para construção civil, naval, medicinal e alimentício. Contudo, por mais que grande parte da população local faça o uso do baru, poucos são os estudos sobre o desenvolvimento dessa espécie. O presente trabalho tem como objetivo avaliar a emergência e desenvolvimento de plantas de baru no município de Palmas-TO. Este foi desenvolvido na área preservada de Cerrado - Terraquarium, no Centro Universitário Luterano de Palmas (CEULP/ULBRA). Os tratamentos usados foram: sombreamento natural, sombrite 50% e sol pleno. Contagens diárias de plantas germinadas avaliaram qual o melhor nível de sombreamento para este evento e medições semanais de comprimento do caulículo e Circunferência a Altura do Solo. Como indicador foi utilizado o Índice de Velocidade de Germinação de Maguire. Segundo os resultados obtidos o tratamento que apresentou maior número de germinação foi o de sol pleno com 93%. Já no que concerne ao desenvolvimento, os ambientes sombreados apresentaram melhores resultados em relação ao sol pleno.
A AGROECOLOGIA E POVOS QUILOMBOLAS NO TOCANTINS
Authors: Andrade Wildes Souza , Saraiva Vitória Hellen Cardoso , Previero Conceição Aparecida
Published: April 2024

O objetivo do artigo é compreender a agricultura a partir da ideia de agroecologia entre os diferentes povos quilombolas no estado do Tocantins. Para isso, reunimos e organizamos amplo acervo de material bibliográfico com informações essenciais e que aproximam da relação entre agroecologia e as algumas comunidades quilombolas tocantinenses. Assim, visualizamos a interação entre os saberes ancestrais das populações negras tradicionais em função das propostas agroecológicas  e preservação ambiental. Além de ampliar os conhecimentos sobre pensamento e práticas agroecológicas em relação aos povos tradicionais, ao final do estudo, destacamos a  necessidade de produzir mais iniciativas, projetos e publicações com a temática agroecológica com os quilombos tocantinenses. Possibilitando novas tecnologias e manejos para a segurança alimentar e subsistência dessas comunidades.
Identificando prácticas de integración disciplinar en áreas STEM en contextos multigrado
Authors: Castro Inostroza Angela , Jiménez Villarroel Rodrigo , Medina Paredes Jhonny , Chávez Herting David , Castrelo Silva Nicole
Published: April 2024

Este estudio busca identificar las prácticas de integración de aprendizajes en áreas STEM utilizadas por profesores multigrado, sus percepciones sobre la integración de las asignaturas STEM y su implementación en estos contextos. Se realizó un estudio exploratorio con enfoque cuantitativo de alcance descriptivo en el que participaron 33 profesores multigrado de dos regiones de Chile. Se elaboró un cuestionario cerrado respondido por los docentes a través de una plataforma online. Los resultados sugieren el desarrollo de prácticas de integración que van desde la promoción de aprendizajes fragmentados a la construcción de saberes interdisciplinarios. También se evidencia la implementación de estrategias de enseñanza que tienden a la homogeneidad, y percepciones positivas hacia la integración de asignaturas STEM. Se concluye la necesidad de generar programas y materiales de apoyo orientados a la promoción de aprendizajes profundos y equilibrados de las áreas STEM que atiendan a la heterogeneidad presente en estas aulas.
Prácticas docentes con adultos trabajadores en las carreras de pedagogía desde la perspectiva andragógica
Authors: Villegas-Dianta Adrián , Sepúlveda-Irribarra Cristian , Alcorta-Ramírez Isaac
Published: April 2024

La investigación indaga sobre las prácticas docentes que atienden la enseñanza del trabajador adulto en la modalidad vespertina y executive de las carreras de la facultad de educación desde la óptica de la andragogía. El objetivo fue explorar el uso de estrategias específicas para la formación de adultos empleadas por los docentes de la modalidad executive y vespertina. El método utilizado es Mixto, de nivel exploratorio, no experimental, con una técnica de recogida de datos consistente en una encuesta con preguntas abiertas y cerradas. Se evidencia un conocimiento basado en la experiencia para la atención de adultos, siguiendo algunas premisas de la andragogía. Es necesario formalizar la práctica docente a nivel andragógico con estudiantes adultos, de manera de que la experiencia docente se traduzca en un acervo institucional que permita depurar las estrategias y orientar a los docentes en el uso de estrategias didácticas específicas para la atención de las necesidades educativas.
Poincaré’s method of normal forms in the study of factors of Production
Authors: Kuznetsov S. B. , Gladkovsky O. P.
Published: April 2024

As the main factors of production, the paper considers physical capital and labor resources. The study of the behavior of the main factors of production is based on the analysis of the volume of investment in them, the depreciation of physical capital and changes in the volume of labor resources. Most of the studies on this topic do not address issues related to distortions in financing and their possible consequences for the main factors of production. To assess these consequences, formulas were derived that include partial derivatives of investment volumes for each of the main factors. The use of these formulas helps to develop an investment algorithm that contributes to the sustainable growth of the main factors of production. The method of Poincaré normal forms was chosen as the main research method, which allows us to simplify the initial problem and reduce it to an analysis in a linear form. A classification of possible variants of eigenvalues, the resulting linear form was carried out. The behavior of the main factors of production depending on the found eigenvalues is determined. This method allows you to get more understandable results and draw more accurate conclusions. The results obtained were tested in a number of federal districts of Russia and a number of EU countries. Testing showed a qualitative match with the real state of the main factors of production. This suggests that the developed investment algorithm can be applied in practical conditions and contribute to the achievement of stable growth in various regions of Russia. This study is important for understanding and optimizing production processes and economic development. It provides a basis for developing effective investment and decision-making strategies that promote both a balanced and directed development of the main factors of production.
Formation of the category “self-employment” in Russia and scientists’ approaches to its interpretation
Authors: Volovskaya N. M. , Plyusnina L. K.
Published: April 2024

The article examines theoretical approaches to defining the concept of “self-employment” as a special type of employment with its own forms of manifestation, as entrepreneurship, as a form of economic activity of an individual, as a special structure in a multi-structure economy, as a socio-economic phenomenon, as a phenomenon that can lead to the integration of the interests of society and people and others. It has been suggested that only a comprehensive consideration of the characteristics of self-employment, its genetic basis, qualities, properties and forms of manifestation will allow us to provide a substantiated author’s understanding of self-employment.
Neuroplasticidade: o caso Jill Taylor
Authors: Lemes Claudia Regina , Roxo Barja Paulo
Published: April 2024

Introdução. Este artigo apresenta uma análise do desenvolvimento cerebral na recuperação cognitiva, a partir do relato da neuroanatomista Jill Taylor no livro “A cientista que curou seu próprio cérebro” (Taylor, 2008). No livro, Taylor narra sua própria recuperação, após ter o lado esquerdo de seu cérebro acometido por um acidente vascular cerebral (AVC). Objetivo. O estudo analisa o papel desempenhado pela neuroplasticidade cerebral e fatores associados nos processos de reabilitação pós-AVC. Método.  Conceitos como os de metacognição, mindfulness, mindset, neuroplasticidade e autorregulação são definidos a partir de revisão de literatura e aplicados à análise do relato da neuroanatomista que usou seus conhecimentos no próprio processo de reabilitação após sofrer um AVC. Resultados. O relato de Taylor e a pesquisa bibliográfica apontam que apoios externos são importantes no processo de reabilitação, bem como a estimulação de determinadas funções cerebrais recrutadas pela metacognição no tratamento. No caso em estudo, o conhecimento da arquitetura cerebral e a autorregulação foram diferenciadores no êxito do tratamento. Conclusão. O caso estudado mostra que determinação biológica, neuroplasticidade e apoio socioafetivo são fatores complementares no processo de tratamento pós-AVC.
A importância da “IA” nos relatórios dinâmicos do CBMPR
Authors: Moraes Marcos Antonio de
Published: April 2024

Este artigo apresenta a implementação bem sucedida do sistema de relatórios dinâmicos para “movimentação e transferências” de bombeiros militares no âmbito do estado do Paraná. Um projeto iniciado em 2018, e que com as adaptações e otimizações na forma de manipular dados por Inteligência Artificial, gerenciados no sistema Power BI, utilizando de cálculos através de fórmulas DAX, conseguiu-se um resultado singular para o usuário interessado final. É importante destacar que, a movimentação de militares envolve uma distribuição Estratégica de Comando, que busca dentre diversas variáveis, a comodidade social dos familiares dos militares envolvidos, trazendo ao interesse institucional então, uma série de análise e compilação de informações atualizadas do seu efetivo. A clareza e facilidade do sistema utilizado no “banco de permutas”, com a interação da IA no análise e comparação dos dados, o CBMPR abordou uma tecnologia inovadora ao disponibilizar com eficiência essa ferramenta ao seu efetivo.
Inclusión escolar en el marco de la nueva normativa legal en Chile
Authors: Tomé José Manuel Salum
Published: April 2024

Hoy en día, la vinculación entre conceptos de educación y diversidad estan muy lejos en las escuelas de Chile, y aún más en las políticas educativas del país, que solo interesa el concepto de inclusión como un concepto mas segregador que inclusivo. Ya a tres años de que fuera promulgada por la Presidenta Michelle Bachelet, el martes 1 de marzo del presente año, comienza a aplicarse oficialmente la Ley de Inclusión Escolar. Dudas, críticas y marcadas diferencias persisten desde distintos sectores hacia la nueva normativa que en principio se propone terminar con el lucro, la selección y el copago en los establecimientos de educación particular subvencionada y no a la integración e inclusión de los alumnos con NEE como foco principal.
Technology of Fuel Consumption and Emission Reduction, and Enhanced Electricity Generation using Mid-Infrared Rays – A Laser Additive
Authors: kanthan Uma , Mathi Madhu , devi Uma , krishnan Sivarama
Published: April 2024

Efficient utilization of available resources is a promising research direction. In-depth studies can provide a unique platform for reducing fuel consumption while simultaneously reducing pollution, thereby avoiding environmental pollution and health hazards for this purpose various fuel addictive are being used now. A laser additive for liquid and gaseous fuel is yet to be developed. In this context, we successfully used the 2-6 mid-infrared spectrum as a fuel additive. To generate mid-infrared we invented a hand-lit pocket-size mid-infrared generating automizer (MIRGA). The trial fuels were irradiated with this spectral range, which caused chemical changes in the fuels.
AS RELAÇÕES DE PODER E A LIBERDADE DE MANIFESTAÇÃO FRENTE À CRISE DE LEGITIMIDADE DO ESTADO-NAÇÃO
Authors: EMANUEL DE ARAÚJO DANTAS RODRIGO
Published: April 2024

The objective of the study is to analyze the relations of power and authority from the perspective of the phenomenon of legitimation, in the search for obtaining consensus and producing voluntary obedience in Society. The perspective of the use of force is also addressed, given its direct correlation with the very notion of State and as an attribute of power aimed at maintaining sovereignty, although its recurrent use may represent a kind of systemic anomaly. The premises point to an exhaustion of the model of symbiosis between legitimacy and legality as a sufficient factor to support current state structures in the face of the perplexity of those in power in the face of a complex, unequal and digital society. In another aspect, the structures of social domination are analyzed based on the interaction between economy and power, given their essentially patrimonial content and a determining historical factor in establishing the social position of individuals in the process of social stratification. Finally, the exercise of freedom of expression is addressed in the face of the multiplicity of contemporary social demands in the face of questioning the authority and legitimacy of state institutions.
Precise modeling and 3D printing of biocompatible craniofacial
prostheses
Authors: Hernández-Maldonado Victor Miguel
Published: April 2024

Currently, the fabrication of accurate maxillofacial
prostheses involves the integration of 3D modeling and
printing technologies. This entails using tomographic
scans information in (DICOM) images obtained through
computed tomography "CT Scan", free-use software, and
3D printers [I, II]. These techniques are widely used by
physicians and engineers, however, a generalized
methodology for creating prostheses with “absolute
accuracy” to patient requirements has not yet been
formally established, according to Pöppe, J.P., et al. (2011)
[III]. This paper shows the case of a male athlete who
required implanting a large volume prosthesis in the right
parietal of the Calota. The implanted prosthesis is not
absolutely exact, which causes frequent headaches, in
addition to being aesthetically sub-optimal. In this work,
the objective is to propose a methodology that allows
generating maxillofacial prostheses using DICOM
images. Python libraries included in free software are used
for visualization, '*.stl' stereolithographic modeling and
eventual 3D printing [IV, V]. This specific case is
deepened, examining each aspect in detail, and the results
are compared with those of the prosthesis placed, thus
contributing to improving the generation of "absolutely
accurate" prostheses.
Dynamics of land use on the coast of delta Grijalva, Mexico, to generate
development strategies
Authors: Villa-Peralta Ana del Pilar
Published: April 2024

The present investigation analyzed the change of coverage
in the periods 2000-2018, through the digitalization and
visual interpretation of orthophotos and satellite images, a
comparative analysis was made between the digitization
carried out in both years to identify the losses and possible
strategies in the area of study and the coastline was
analyzed. The results show that the loss of highest
observance was the mangrove area, suffering a decrease of
4.78% and in profits the uses for hydrophytic vegetation,
family gardens, urbanization and bodies of water,
hydrophilic vegetation being the most profitable with a
5.24 %. For the analysis of the coastline, a loss of 262.2
meters in a period of 18 years was obtained in the area
adjoining the Gulf of Mexico and, finally, by comparing
the map of change of uses with that provided by the
Program of Management Ecological State of Tabasco
2013, gives us a vision of the lack of compliance with the
same program, which leads to poor application and use of
land, generating environmental degradation and this in
turn contributes to increased vulnerability to impacts
caused by climate change.
State of the art: “social and solidarity economy as a driver of sustainability
Authors: Gómez-López Daniela S.
Published: April 2024

The article presents a comprehensive analysis of the
current state of convergence between Social and Solidarity
Economy (SSE) and sustainability, covering the period
from 2009 to 2023. SSE, with its principles of cooperation,
equity, and citizen participation, is considered a key tool
for addressing inequality and promoting decent
employment, while sustainability focuses on improving
living conditions without compromising the future. The
article argues that SSE promotes sustainable economic
practices aligned with the 2030 Agenda. The proposed
methodology combines heuristic and hermeneutic
approaches, allowing for a thorough and up-to-date review
of the literature on SSE and sustainability. The application
of SSE in various regions is illustrated through case
studies that encompass areas such as urban agriculture,
circular economy, recycling cooperatives, and socioeconomic development projects. Overall, it is emphasized
that the combination of SSE and sustainability offers a
promising approach to addressing socio-environmental
challenges, highlighting cooperation, inclusion, and the
pursuit of a sustainable and equitable future.
Comparative study of the years 2017, 2018 and 2019 of PM 10 particle sampling of
the frontera, Comalcalco and paraíso municipalities
Authors: Suarez-García Sandra Manuela
Published: April 2024

Air pollution is currently one of the greatest health risks. Among the
effects that have been associated with atmospheric pollution are increases
in respiratory and cardiovascular diseases, which are generated by fixed
and mobile sources. One of the main pollutants in the atmosphere is
particulate matter, which is a complex mixture of substances in a liquid
or solid state that remains in suspension for a certain period of time. Due
to this, the following work was carried out to evaluate the periods of
highest concentrations of PM10 particles of the years 2017, 2018, and
2019 and compare them with meteorological data; temperature, and
humidity of the municipalities of Centla, Comalcalco, and Paraíso. To
achieve the development of this research, the data from each of the
meteorological settled stations were downloaded, in order to give each
one a previous treatment of the data in Excel by averaging the sampled
days. For the treatment of the data, an Excel database was created to later
manage them in the Minitad software to obtain the scatter plots where the
concentrations of each of the municipalities were compared. In
conclusion, we can say that the only municipality that exceeded the
Metropolitan Air Quality Index (IMECA) was the municipality of
Comalcalco where 11 dates were presented that exceeded the LMP, with
values ranging from 76 µg /m3 to 110 µg /m3 . In graphs 4, 5, and 6, we
can say that despite having ascending regression lines and positive
correlations ranging from r= 0.1 to 0.4, we could not interpret that there
is a correlation between both variables. As graphs 7, 8, and 9 show, we
could also observe ascending and descending regression lines with
mostly negative correlations ranging from r= -0.1 to -0.4, so we could
say that their correlation is inverse, that the higher the increase in relative
humidity, the lower the concentration of particulate matter.
Organizational climate and its effects on job satisfaction: A case study
Authors: Collado-Rodríguez Neiro
Published: April 2024

Today, organizations are increasingly recognizing the
importance of organizational climate in human resource
management and business success. As work dynamics,
employee expectations and the demands of an everchanging business environment evolve, it plays a crucial
role in the success and sustainability of organizations. For
this reason, organizational climate influences aspects such
as emotional well-being, motivation and commitment,
stress reduction, as well as effective communication and
professional development. In view of this, the present
research aims to evaluate the influence of organizational
climate on the job satisfaction of the staff of a public sector
General Hospital in Villahermosa, Tabasco, in order to
generate a conceptual model based on the dimensions
established by the analysis of the current context of the
Hospital. The study has a quantitative approach of a
transectional, explanatory type, carried out by collecting
data through the application of a previously validated
measurement instrument.
Proposal of an integral model for measuring productivity in a convenience store in Villahermosa, Tabasco
Authors: García-Jerónimo Beatriz
Published: April 2024

Nowadays, any company needs to be productive and
competitive in order to function well, which signifies that
productivity means doing the job in the best way,
optimising the resources available to achieve the goals
set within the company, and in turn is based on tangible
and intangible factors. This project was based on
measuring productivity in a grocery store in
Villahermosa, Tabasco. For this purpose, a tool was
developed to measure 8 basic criteria for creating and
maintaining productivity, to be applied to each
department of the store. We then developed a
productivity improvement model to address these
opportunities.
Future expectations in secondary and high school students from a rural community in the state of Yucatan
Authors: Andueza-Pech Guadalupe
Published: April 2024

Objective: to analyze future expectations, which, from the
students' perspective, are important; as well as to determine
if the expectations are different for secondary level students
compared to those of high school and to explore the behavior
of future expectations in men and women. Methodology: a
study with a non-experimental, cross-sectional design was
carried out with students from two schools: a secondary
school and a high school in the rural area. This work
contributes to understanding the adolescent population of the
rural area with which we work, since each approach
contained in the questionnaire induces them to reflect and
assess their current situation; In the medium and long term, it
is expected that the results obtained provide elements that can
be translated into Public Policies so that the Ministry of
Public Education incorporates them into its educational
programs and in this way the adolescent population at all
educational levels can be trained as individuals capable of
visualize and build their expectations for the future
incorporating elements of modern life, but at the same time,
valuing their origin and the cultural diversity of their present
time, as well as the impact of modernity on their lives
Physical properties of Ag3SbS3 thin films for photovoltaic applications
Authors: García-Guillén Grisel
Published: April 2024

Ag3SbS3 thin films have been prepared by
heating multilayers of glass/Sb2S3/Ag at
different temperatures. Thin film of Sb2S3 were
deposited on glass substrates using chemical
bath deposition technique. Thermal evaporation
of silver followed by annealing at 300 and 350°C
were carried out to synthetize Ag3SbS3 thin
films. XRD spectra showed the formation of
Ag3SbS3 thin films at 300 and 350 °C with a
micro-strain and grain size of 1.8 x 10-3
and 21
nm, respectively. Electrical conductivity in the
range of 10-4
– 10-5
(Ωcm)-1
and a band gap of
1.3 eV were obtained.