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Facultad de Ingeniería [631]
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Facultad de Negocios [25]
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Facultad de Psicología [128]
Collections in this community
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Área de Ciencias [4]
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Área de Humanidades [23]
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Seccion en procesamiento [144]
Recent Submissions
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Sports audiovisual production versus COVID-19: an interview with journalists and filmmakers of Iberoamerica(Ediciones Universidad de Salamanca, 2024-01-01)COVID-19 halted social activities across the planet; including sports. The pandemic caused an unprecedented crisis in the audiovisual media that broadcast these events, which found themselves with the immediate need to restructure their content offer, for which they had to innovate in their production and programming processes. This research aims to describe the innovations in audiovisual journalistic production applied in sports media in various countries during the crisis caused by COVID-19. To comply with this, the qualitative approach was applied with the semi-structured interview technique to a sample of producers, journalists and filmmakers. The interview was oriented according to the main constituent stages of audiovisual production, such as pre-production, coverage and post-production. Based on what has been studied, it is concluded that the global crisis caused by the pandemic encouraged innovative techniques for audiovisual production, conceived from technological hybridization. From this angle, it was possible to continue producing content that, at the same time, presented changes in its audiovisual narrative structures and originated the creation of new formats or the reuse of audiovisual files that each channel used to generate updated content.Acceso abierto
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Gaussimeter with automatic movement for the evaluation of the density of the magnetic flow in permanent magnets(Sociedade Brasileira de Fisica, 2024-01-01)The 2022 quarantine period exposed the need to design laboratory instruments that were accessible to students, allowing them to conduct experiments from home. Although many magnetism studies have developed manually displaced gaussmeters, only a few of them have been automated. Therefore, this study presents the design of a gaussmeter made with construction toy parts and an Arduino UNO development board to quantify the magnetic flux density in permanent magnets. To evaluate its operation, precision and robustness tests were carried out. In this way, the Kruskal-Wallis test showed similarity in the experimental readings with the WSH315 sensor between 1.62–3.54 cm. Meanwhile, the Wilcoxon-Mann-Whitney test showed limitations in terms of accuracy. And the Youden-Steiner test showed robustness to polarity rotation in the magnet at a distance of 1.19 cm with the AD22151 sensor. Finally, the experimental results showed proximity to analytical and numerical methods. Additionally, the results demonstrated the versatility of the gaussimeter to adapt to another sensor (MLX90393). Therefore, this design can be used to perform magnetism experiments at low cost.Acceso abierto
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Competitiveness, labour market and protection of the right to work in the member countries of the Pacific Alliance(Cogent OA, 2024-01-01)The research determines the relationship between competitiveness, the labour market and the protection of the right to work at the constitutional level in the member countries of the Pacific Alliance, analysing for this (i) the evolution of the labour force of the members of the Pacific Alliance, (ii) the constitutional economic system and its competitiveness, (iii) the constitutional framework of the right to work and its related rights, as well as (iv) the situation of the labour market and business competitiveness in Chile, Colombia, Mexico and Peru. A qualitative approach is used at a descriptive, exploratory, and bibliographic level with emphasis on the theories put forward by Mortimore and Peres, Cardona-Arenas, Josling et al.; and Rojas and Terán. It is concluded that there is a direct relationship between competitiveness and job stability in the countries of the Pacific Alliance thanks to the regulatory frameworks of their laws for the protection of the individual rights of workers, despite the economic informality of their members and the socioeconomic inequities of its citizens. Data from the International Labour Organisation, United Nations Economic Commission for Latin America and the Caribbean, and the World Bank, from 2010 to 2023 were used, as well as bibliographic information.Acceso abierto
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CONTRIBUTION OF BRAND IMAGE TO CONSUMER BEHAVIOR: A SYSTEMATIC REVIEW(ANPAD - Associacao Nacional de Pos-Graduacao e Pesquisa em Administracao, 2024-01-01)Objective. The contribution of brand image to consumer behavior is explored, since, in the business world, the impact of reputation on consumers with respect to the company's brand can determine the success or decline of an organization. Methodology. The approach is based on a solid qualitative documentary analysis. The PRISMA methodology is applied. Which involves an exhaustive search of the relevant literature, followed by the evaluation of the sources for the development of the work. Results and Discussion. Twenty-two articles published in high impact journals were obtained. Multiple interpretations and considerations on the concept of consumer behavior, as well as brand image, stand out. However, a common conception of consumer behavior refers to the perception of habits, lifestyles, attitudes and practices. Implications of the research. The implications of this research suggest that, despite the diversity of perspectives on consumer behavior, there is a general consensus that this concept relates to the perception of habits, lifestyles, attitudes and practices. Originality/value: The study does not limit itself to a single definition, but explores the various interpretations and considerations of the concept, revealing the complexity and richness of the field. The lack of a single definition of the concept implies the need for further research to delimit and deepen the understanding of consumer behavior in different contexts.Acceso restringido temporalmente
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Improvement of EduBPMN Transformation Rules from an Empirical Validation(Springer Science and Business Media Deutschland GmbH, 2024-01-01)EduBPMN method allows the generation of graphical components from a BPMN model complemented with the UML class diagram. This article proposes the improvement of five transformation rules of the EduBPMN method from an experiment developed in 2019, with the improved transformation rules an experiment was developed that was executed by 31 subjects where the results of two metrics were obtained, (i) the correctness of the rules, where the subjects had to map BPMN to graphic components intuitively through an experimental problem, had a positive result (87.50%), (ii) the satisfaction of the generalization of the rules, had a positive result in its Perceived Ease of Use (93%), Perceived Usefulness (95%), and Intention to Use (96%). This article provides positive results on the five new improved rules of the EduBPMN method, which is used to map BPMN to graphical components.Acceso restringido temporalmente
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CLPSafe: Mobile Application for Avoid Cloned of License Plates Using Deep Learning(Springer Science and Business Media Deutschland GmbH, 2024-01-01)The problem of cloning vehicle license plates in Peru is detailed, by criminals to sell vehicles at a lower price or commit crimes with the stolen vehicle. A mobile application is proposed that uses convolutional neural networks and deeplearning algorithms: TensorFlow, EasyOCR and OpenCV to identify the license plate and its alphanumeric code, obtain detailed information about the vehicle and its owner, and issue reports to the authorities in case of cloned plate or stolen. The objective of the project is to speed up identification, consultation, and issuance of reports regarding vehicular identity theft, thus contributing to improving citizen security missing results. The analyzed results indicate that 75% of the experts expressed favorable opinions regarding the validation of the proposed architecture diagram for CLPSafe. The positive evaluations received endorse the feasibility and effectiveness of the proposed architecture, affirming its potential to effectively tackle the problem of license plate cloning in Peru.Acceso restringido temporalmente
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Recommendations for the Development of Augmented Reality Video Games for Children with ADHD(Springer Science and Business Media Deutschland GmbH, 2024-01-01)Currently, the percentage of children with Attention-Deficit/Hyperactivity Disorder (ADHD) is between 7% in Peru. This is a problem for their development at an early age, since they would demonstrate poor academic performance compared to neurotypical children. This paper aim is to propose 10 recommendations to develop a video game with Augmented Reality for children with ADHD. The recommendations have been extracted from 25 research works. Specifically, the proposal is based on the extraction of recommendations for development video games with Augmented Reality for children with ADHD. The recommendations were divided into 2 categories: (i) Video game development recommendations with augmented reality, (ii) Video game components recommendations. For a better understanding, an illustrative example was developed with the use of the proposed recommendations. This work may be of interest to video game developers focused on children with ADHD.Acceso restringido temporalmente
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CollabVR: A Social VR Architecture for Social Interaction Between College Students(Springer Science and Business Media Deutschland GmbH, 2024-01-01)This paper explores the challenges and solutions to the decrease in social interaction in the university environment due to the adoption of online classes. The proposal frames the use of Virtual Reality (VR) for the creation of CollabVR, a social interaction platform. CollabVR is based on a technological architecture oriented towards managing extracurricular activities in VR environments, with the aim of enhancing social interaction among university students. This architecture follows a microservices approach and includes a web application and a VR application. To assess the technological feasibility of CollabVR, a focus group of software architecture experts was organized. The results showed that 66% of them agreed that the proposed architectural diagrams provide a clear and complete representation of the interaction between users, devices, applications, and servers. In addition, 100% of the experts deemed the proposed solution as highly viable. They highlighted that the suggested services and components would contribute to significantly improve students’ social interaction. In summary, the conceptual model of CollabVR provides a space for socialization, paving the way to enhance the remote educational experience and contributing to the social well-being of the students.Acceso restringido temporalmente
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Influence of Rice Husk Ash on Self-Compacting Concrete to Avoid the Presence of Honeycombs in Columns(Trans Tech Publications Ltd, 2024-01-01)In structural columns, honeycombs are very common in small and big works. This problem is caused by poor consolidation of the concrete that increases the probability of honeycombs (voids left in concrete according ACI). These imply costs incurred and affect the work schedule. An exhaustive search is carried out regarding methods in the scientific literature and materials with respect to their availability in the market related to the problem. In this way, it was found that the design of a self-compacting concrete using the ACI 237R-07 with the use of a supplementary cementitious material aims to be a solution to this problem. Rice husk ashes contain silicon oxide and aluminates. These elements improve or increase the strength of the concrete, offer workability and fluidity properties. It was found that with a 5% replacement, 735 mm and 730 mm of slump flow and J-ring were obtained, respectively. Additionally, the V-funnel time was 9.58 seconds. The use of RHA positively increased the values of the measured tests with respect to the standard, thereby improving the workability and stability properties.Acceso restringido temporalmente
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Experimental Evaluation of the Shear Stress of Concrete with Macro-Synthetic Fibers and Steel Fibers for Structural(Trans Tech Publications Ltd, 2024-01-01)This work evaluates the shear stress in concrete beams with the addition of reinforcing fibers. Since there is no established standard in Peru, it was proposed to use the "JSCE-SF6" test method recommended by the Japanese Society of Civil Engineers and an analytical model to determine the shear strength of concrete with fibers. For this purpose, steel and polypropylene fibers were used in the proportions of 3kg, 5kg, 7kg and 9kg for each design. The main test was the shear test based on Japanese standards, however, secondary tests such as compression and flexural tests were also performed. The results obtained showed the contribution of the fibers in the three tests performed. In the shear test, the polypropylene fibers obtained a higher shear strength in all their mix designs in the same proportions. Additionally, an analytical model is proposed to determine the shear stress in concrete with fibers, which includes as variables the compressive strength, the mass fraction of fibers and the tensile strength of the fibers, which generates acceptable values close to those obtained experimentally with the Japanese Standard Shear Test.Acceso restringido temporalmente
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Modified Model of Prediction of Carbonation Depth Based on CEB-FIP for Concrete with Portland Cement with High Water-Cement Ratios(Trans Tech Publications Ltd, 2024-01-01)CO2 levels in the world are constantly increasing and have generated a great impact on reinforced concrete structures causing increased carbonation. The phenomenon of carbonation causes corrosion of the reinforcing steel, therefore, reinforced concrete structures present a high risk of corrosion of its reinforcing steel causing the reduction of the useful life of the structure, or in extreme cases, a demolition must be carried out. The objective of the present study is to propose a prediction model for carbonation depth in pure concretes which are not designed for durability (w/c0.55). CEB-FIP model presents the limit of serving only for concrete with w/c<0.50, due to this, the present study proposes a model that will help as a reference to estimate the useful life of structures that are built and designed in cities where they do not are exposed to these durability conditions. The modified model for predicting the carbonation depth based on CEB-FIP in pure concrete with high w/c (0.60 and 0.72) uses the parameters of temperature, relative humidity, CO2 concentration, and water/cement ratio. The objective is to obtain the accuracy of the modified model for predicting the carbonation depth in concrete over the years. For the results, the theoretical data obtained from the modified model was used and a comparison was made with the experimental results obtained from concrete specimens tested inside an accelerated carbonation chamber to find the model's accuracy.Acceso restringido temporalmente
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Improving Walkability of People with Reduced Mobility at An Intersection Using Microsimulation In VISSIM And SSAM(Avestia Publishing, 2024-01-01)In this research project, the evaluation of the accessibility and mobility difficulties faced by people with disabilities when circulating around a vehicular intersection is addressed. To carry out this evaluation, the Vissim and SSAM programs were used. The assessment of conflicts is carried out through the analysis of heat maps obtained with SSAM. In the context of this article, an analysis is carried out of the number of conflicts between vehicles on a road segment that is part of a traffic signalized intersection, characterized by the constant presence of congestion. Along this stretch, a decrease in lanes, variability in lane widths and lack of uniformity are observed, generating a point of congestion that gives rise to various types of vehicular conflicts. To carry out this evaluation, the micro simulation software VISSIM 8.0 was used, which models the real situation of the intersection. Two new scenarios are proposed, in which suggestions for geometric redesign are introduced in the infrastructure of the road section with the objective of analyzing the influence on the variability of the number of vehicular conflicts. The proposedmethodology consists of three fundamental stages: (i) obtaining the passage times of four types of vehicles that circulate in the area and the passagetimes of people with disabilities along the track, (ii) the modeling in the Vissim program and (iii) the implementation of the proposed improvements.Acceso abierto
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Optimization of Water Resources to Counteract the Effects of Water Deficit Using the WEAP Model(Avestia Publishing, 2024-01-01)The water deficit generates a great impact in regions where demand for this resource is of vital importance for socioeconomic development. The high concentration of urban centres, the poor management of the resource, the various climatic changes, are some of the factors that cause its limitation. This research aims to analyze the best alternative to optimize the resource and meet the demands in areas where its availability and supply are scarce. A hydrological simulation model of the Coata River Basin (CRB) was carried out using the Water Assessment and Planning System (WEAP). Data such as precipitation, temperature, relative humidity, wind speed, and flow were extracted from the historical records of 10 rainfall stations for a period of 50 years (1971-2022). Three scenarios were established in the CRB, the construction of a dam (S1), the implementation of a diversion (S2) and the implementation of a sprinkler irrigation system (S3). The results revealed that S1 has a supply of 1103.1 MMC and a demand of 1308.4 MMC, leaving an unsatisfied demand of 205.3 MMC. The S2 has a supply of 1103.1 MMC and a demand of 1285.6 MMC, leaving an unsatisfied demand of 182.5 MMC. Finally, the S3 presents a supply of 1103.1 MMC and a demand of 912.3 MMC, with the demand for water being fully covered. The implementation of a sprinkler irrigation system proved effective in improving the volume of water required in the CRB.Acceso restringido temporalmente
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Integration of 4D BIM, PtD and databases to improve OHS and knowledge management in construction(Avestia Publishing, 2024-01-01)The construction industry faces high incidences of accidents and injuries, resulting in project delays, additional costs, and loss of lives. In developing countries, conventional methods are employed to identify risks and prevent accidents due to limited familiarity with tools such as Building Information Modelling (BIM) and Safety and Health Management (SHM) models. Furthermore, the lack of knowledge retention and lessons learned hinders continuous improvement in safety. Previous research has proposed specific solutions to address these issues, including the integration of BIM in occupational risk management, the use of technology to store safety data, and the application of the Prevention through Design (PtD) approach. However, these solutions tend to focus on individual challenges. This paper introduces a novel methodology called Ultra Safety Design (USD), which comprehensively addresses OHS management in construction projects. USD combines the use of BIM, PtD, and a centralized database. BIM enables precise identification of hazards and risks during the design stages, facilitating the implementation of appropriate control measures. PtD promotes a proactive safety mindset by preventing risks from the design phase, and the centralized database allows for knowledge retention, information exchange, and referencing of previous projects, fostering a culture of continuous improvement. The study's results demonstrate effective risk mitigation, with a significant reduction in overall risk levels. The USD methodology proves to be an integral and effective approach to address OHS management in construction, integrating multiple tools and promoting continuous improvement in OHS practices.Acceso abierto
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Sunshade Sizing According to Bioclimatic Zones in Peru(Universidad Austral de Chile, 2024-01-01)/External solar protection is one of the most important bioclimatic strategies in hot and temperate climates to avoid indoor overheating and the consequent thermal discomfort for dwellers. This document aims to objectively identify the times of the year and of the day when solar protection should be considered, depending on the building’s climate and location latitude in Peru. In addition to identifying ideal orientations and helping in sunshade sizing, the procedure has evidenced the need to recover the shading culture in the window openings in a particularly diverse and singular setting such as the Peruvian territory.Acceso abierto
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Sustainable Concrete Design Using Brown Chicken Eggshell to Reduce Carbon Footprint(Avestia Publishing, 2024-01-01)The construction industry, as well as the food industry, are two influential sectors in the economy of Peru. However, processes such as cement manufacturing for use in concrete production and the disposal of food waste are two of the main causes of environmental pollution globally. This research considers the use of brown chicken eggshell, typically considered waste in the food industry, to be used as a partial replacement for cement in concrete mixes. The experimental work conducted analyses the properties of concrete in a hardened state through destructive and non-destructive laboratory tests, evaluates the effectiveness of eggshell as a partial replacement for cement in three presentations: fresh eggshell, dried eggshell, and eggshell ash; and determines the variation in carbon footprint of the concrete with eggshell compared to the standard concrete mix. This sustainable approach not only improves the properties of concrete but also marks an important step towards sustainable construction and the reuse of food waste.Acceso restringido temporalmente
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Analysis of Soil Periods through Strong Motion Records by the Horizontal-To-Vertical Spectral Ratio Method in the District Of Chorrillos, Lima, Peru(Avestia Publishing, 2024-01-01)This article presents the results of the analysis of predominant soil periods using the spectral ratio (HVSR) methodology, based on strong motion records at seismic stations in the Chorrillos district, Lima, Peru, a high seismicity area at the western edge of South America. The district contains fine soil deposits, different to the coarse alluvial conglomerate of Lima downtown. The seismic stations are located on sandy soils interspersed with clay strata, moderately compact to dense aeolian sands of variable thickness, and silty-clay soils followed by peat with intercalations of silty sand, according to the existing seismic microzonation. The results indicate that the HVSR method can be very useful to determine the predominant soil periods, which represent the soil profile on which the strong motion record has been recorded. These soil periods, which are in the range of 0.21 s to 0.49 s, are compared with those determined from previous microtremor measurements and inferred from geophysical tests of shear wave velocity, obtaining a good correlation. Also, site classification of the soil profile at these stations is verified according to the Peruvian Seismic Code.Acceso restringido temporalmente
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Design for the improvement of soils with liquefaction potential using Rammed Aggregated Piers(Avestia Publishing, 2024-01-01)This paper presents the use of Rammed Aggregated Piers (RAP) for soil improvement; this implementation gives the soil a greater load capacity and provides settlements lower than the admissible. In addition, it mitigates the liquefaction phenomenon in loose sands. The present project is an analytical study where calculations were made considering the construction of a building implementing soil improvement with RAP, which, in first instance, the settlements in the unimproved ground were evaluated using the methodology of Idriss & Boulanger (2008) considering the correction factor for depths of Cetin et al. (2009). Subsequently, the RAPs were implemented and the settlements in the improved soil were evaluated following the 3-step methodology proposed by Geopier. The implementation of the RAP presented a significant improvement in different aspects such as settlement, which was observed that in the results of the settlement calculations all the analyses were less than the admissible settlement (1inch).Acceso restringido temporalmente
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SocialBullyAlert: A Web Application for Cyberbullying Detection on Minors’ Social Media(Science and Information Organization, 2024-01-01)The severe problem of cyberbullying towards minors is addressed, which has been shown to have significant impacts on the mental and emotional health of children and adolescents. Subsequently, the effectiveness of existing artificial intelligence models and neural networks in detecting cyberbullying on social media is analyzed. In response, a web platform is developed whose contribution is to identify offensive content, adapt to various slangs and idioms, and offer an intuitive interface with high usability in terms of user experience (UX) and user interface (UI) design. The application was validated with cyberbullying experts (teachers, principals, and psychologists), and the UI/UX design was also validated with users (parents). Limitations and future challenges are discussed, including varying cyberbullying regulations, the need for constant updates, and adapting to multiple languages and cultural contexts. This highlights the importance of ongoing research to enhance parental control tools in digital environments.Acceso abierto
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Nutritional labeling of prepackaged food products in the purchasing decision: The case of Peru and Mexico(Associacao Iberica de Sistemas e Tecnologias de Informacao, 2024-01-01)Nutritional labeling of food products educates and generates consumer learning about healthy ingredients, quality and nutritional value. We analyze the perception of the elements of the labeling of prepackaged foods and non-alcoholic beverages that could be considered in the consumer’s purchasing decision. The characteristics that the consumer identifies as critical nutrients that would represent a risk to their health if excessive consumption are made known. Using qualitative (interview) and quantitative (survey) methodology, with non-probabilistic sampling, which included women and men from Peru and Mexico, between 18 and 60 years old, consumers of prepackaged foods and non-alcoholic beverages; It is concluded that Peru and Mexico have favorable learning of healthy practices and use of regulations; they must provide nutritional education to consumers to choose foods in order to achieve a healthier diet. Although there is awareness of risks, they are consumed by practicality and easy access.Acceso restringido temporalmente