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  • Artificial Intelligence in Engineering and Computer Science Learning: Systematic Review Article

    Manco-Chávez, José Antonio; Manco Arroyo, Nicolas Silver; de María, Sánchez Aguirre Flor; Saravia, Reynaldo Campos; Diaz Hinostroza, Mary Rosaura; Montenegro, Luz Petronila Blas; Toledo, Melissa Fatima Muñante; Olivares, Jorge Antonio Crisóstomo; Puga, Nancy Barazorda (Cosmos Scholars Publishing House, 2023-01-01)
    Until the present, the technology has made students and teachers to object in its use, the quick development of it in engineering has been possible by the appearance of the covid-19, the objective of this investigation is to respond to the following question: why engineering and computer science students would have to learn artificial intelligence? It can be said that the students learning of these disciplines study or develop competences like the creation of: A.I. in mechanics, robotics, biological sciences, physical sciences, etc., from where they could develop, such as the advanced neural networks. The method used for this research is the PRISMA which allowed through the keyword of A.I. and Computer Science in the database of Scopus, Wos, World Wide Science, Scielo, Dialnet, from where we then have a large number of research articles that will have to be filtered, having as a result in the first search 321 952 articles, which were then filtered at various times until reaching the number of 320 429 filtered articles leaving us with 37 of them related or linked to research on A.I. and computer science. In conclusion, A.I. applied by engineering schools of all specialties has granted the development for companies and technological contributions to the new digital culture.
    Acceso abierto
  • A validation model to reduce non-contributory time based on Lean tools: Case of a construction company in Perú

    Cabrera, Olenka; Tejeda, Joselyn; Llontop, José; Mendoza, Pablo; Alvarez, José C.; Demirkesen, Sevilay (Cogent OA, 2023-01-01)
    The construction industry has long been suffering from high rates of non-contributory time. Construction processes are likely to include time, which is sometimes lost for non-value-adding operations resulting in time waste. Considering the large percentage of lost time in all operations, this study aims to reduce the high rate of non-contributory time (NCT) in construction services. To test the management model, a Peruvian company was selected as a study case. In this respect, a management model based on mostly implemented Lean tools such as Kanban, 5S, and TPM was utilized. It is of utmost importance to emphasize that this proposal aims to reduce the NCT by up to 25%, as well as reduce the number of orders generated with delay, and eventually reduce the loss or damage of materials and equipment stoppages.
    Acceso abierto
  • Beyond online sales: From service quality to e-loyalty and word of mouth

    Acosta Morey, Karla; Chávez Aguilar, Andrea; Mauricio Andía, Martín (Universidad Nacional Autonoma de Mexico, 2023-01-01)
    The purpose of this research is to demonstrate how service quality is an antecedent, influencing through trust and satisfaction, in electronic loyalty and word-of-mouth within e-commerce businesses. Data was collected from 300 users with e-commerce shopping experience and to test the proposed hypothesis the results were analysed using the Structural Equation Model (SEM) approach based on Partial Least Square (PLS). The results showed that service quality has a positive effect on e-satisfaction and e-trust, and these in turn influence e-loyalty and electronic word of mouth. The main contribution of this research is to expand knowledge on the relationship between service quality and word of mouth in an e-commerce environment.
    Acceso abierto
  • Bridge damage analysis under joint environmental and operational variability

    Delgadillo, Rick M.; Tenelema, Fernando J.; Casas, Joan R. (Taylor and Francis Ltd., 2023-01-01)
    One of the main challenges for bridge damage identification using monitoring data is to acquire sensitive damage features but insensitive to operational and environmental effects as well as noise. Specifically, the temperature as part of environmental variability can mask structural damages in bridges. Principal Component Analysis (PCA) has been applied here as a well-known and robust technique for removing environmental variability and obtain damage-sensitive indices. As a first aim, PCA is used considering only ambient vibrations and the natural frequencies are considered as damage indicators. As a second objective, PCA in conjunction with Hilbert Huang Transform (HHT) and Variational Mode Decomposition (VMD) are applied to eliminate the environmental influence in transient vibrations due to traffic. The combined methodology is applied to the case of a numerical benchmark by using the Instantaneous Phase Difference (IPD) as novel vibration damage feature in the case of non-stationary vibrations. The results show that the proposed strategy to use the non-stationary vibration due to traffic instead of ambient vibration seems a promising tool for damage identification and, therefore, its capabilities in real bridge applications are worth exploring further when experimental data from real bridges will become available.
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  • Business incubators, performance and effectiveness: A systematic review

    Flores-Bueno, Daniel; Jerez, Oscar (Universidad Icesi, 2023-01-01)
    From their emergence in the 1950s to their popularization in the late 1990s, business incubators have promoted entrepreneurship and innovation worldwide. This article proposes a systematic review of the literature on the evaluation of their performance at the global level. We analyzed 75 articles from Scopus and Web of Science from 2015 to 2021. We identified seven types of evaluations: 1) process management, 2) end results, 3) benchmarking, 4) impact of external networks, 5) learning, and 6) incubate behavior. This study contributes with the identification of a significant change in methodology with a predominance of quantitative (44 occurrences) over qualitative (11 occurrences), and mixed (12 occurrences). In terms of theory, a great dispersion was found. Finally, a research agenda is proposed.
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  • Controversies about the extension of time within the framework of public Works

    Valdez, Leandro García (Pontificia Universidad Catolica del Peru, 2023-01-01)
    In this paper, the author presents a logbook on the current state of controversies related to requests for extension of time in the framework of public works. Firstly, the general aspects of this legal remedy are explained. Secondly, the main controversies arising in arbitral proceedings are commented on, based on the contrast between the position that some public entities usually take to deny an extension of time, as opposed to what is regulated in the law, what is developed by doctrine and what is resolved in arbitral awards. The aim is to verify the basis of what is stated by public entities.
    Acceso abierto
  • A review of the Obras por Impuestos regulation regarding dispute resolution and Dispute Boards

    Benavente, Carlos Tapia (Pontificia Universidad Catolica del Peru, 2023-01-01)
    This article will analyze the current regulation of the mechanism of Obras por Impuestos, specifically, the tools for dispute resolution and will evaluate the possibility of including Dispute Boards as a contribution to prevent and solve disputes in a timely manner, cost efficient, and to promote the use of Obras por Impuestos to reduce the infrastructure gap in Peru.
    Acceso abierto
  • Green lean method to identify ecological waste in a nectar factory

    Erquínigo, Andrei Bancovich; Porras, Jorge Ortiz; Saavedra, Harold Quintana; Chamorro, Paola Crispin; Alva, Rosiand Manrique; Carhuapuma, Pedro Vilca (Universidad Politecnica de Valencia., 2023-01-01)
    Nowadays, the waste of resources has become one of the biggest problems for industries, due to the serious environmental, social and economic consequences it generates. Therefore, to ensure a production based on sustainable processes, it's essential to have a responsible management of resources, being the first step one of the most important ones, the identification. Thus, the present research work aims to develop and implement a method based on the integration of Green and Lean methodologies to systematically identify ecological waste, taking as a case study a nectar factory in Lima - Peru. Through the implementation of tools such as Environmental Value Stream Mapping, Process Mapping or Failure Mode and Effects Analysis, it was found that the company generated a waste of 1584 litres of water and 38.5 kg of conditioned fruit every month. The identification of green waste is vital, as it is the first link in a long chain that contributes directly to improving the company's efficiency, profitability and reputation, as well as protecting the environment and promoting sustainable development.
    Acceso abierto
  • eWom, Trust, and Perceived Value Related to Repurchases in the e-commerce Sector of Department Stores

    Blanco-Gamero, Carolina; Acosta-Bonilla, Estephania; Lodeiros-Zubiria, Manuel Luis (Springer Science and Business Media Deutschland GmbH, 2023-01-01)
    With the exponential growth in e-commerce retail sales, a variable such as perceived value is essential to consider, to warrant a successful long-term online business. However, eWom and perceived value have not yet been deeply studied together with other variables such as trust and repurchase in e-commerce belonging to department stores. Consequently, this study aims to analyze the influence of perceived value, eWom and trust on repurchases in those e-commerces. The sample was 196 people that repurchased from department stores e-commerce in Lima, Peru. The results were analyzed on Smart Pls. The results established that trust influenced repurchase and that eWom conditioned the perceived value of e-commerce in department stores. Furthermore, the results identified relevant variables that department stores’ e-commerce areas should consider to improve consumer repurchase through their e-commerce.
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  • Review of Scientific Research on Informal Learning Using Information and Communication Technologies in Education: A Bibliometric Analysis

    Yong-Chung, Felipe; Mariano, Ari Melo; Cahuana, Rosalin Marin; Curo, Carlos Pozo (Associacao Iberica de Sistemas e Tecnologias de Informacao, 2023-01-01)
    This article aims to make a bibliometric review, through the Web of Science (WoS) database, on informal learning. For this, a systematic search of research articles related to the subject of study is made, applying the consolidated meta-analytic approach theory (TEMAC). The study finds that the country with the most research is the United States with 38.1% of publications among the 10 most productive countries. Likewise, the use of augmented reality and virtual simulation games are identified as the digital technologies most associated in recent years with informal learning, with positive results in student learning and performance.
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  • Development of a turbine spirometer prototype and signal digitalization

    Chavez, Heyul; Herrera, Carlos; Tejada, Felix Llanos; Mayra, Jorge Bazan; Moguerza, Javier M.; Raymundo, Carlos (Institute of Electrical and Electronics Engineers Inc., 2023-01-01)
    The present research is part of the project called PHUKUY, which is a low-cost portable digital spirometer prototype designed for remote monitoring of patients with COPD and COVID-19. It also includes additional sensors for improved patient monitoring. This article presents the development of the spirometry module. A turbine spirometer was chosen for its small and lightweight size, easy cleaning and maintenance, and low-cost implementation, which allows for portability. The airflow was successfully digitized, and its direction was detected using a microcontroller, a pair of IR receivers and emitters. This information was then sent via Bluetooth to be displayed in real-Time on a mobile phone. For a 3-liter calibration, a maximum error of ±0.115 liters and a standard deviation of 0.051 were achieved.
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  • Optimization model for healthcare processes using Process Mining

    Julca, Marice Aranza Regina Dorador; Cardenas, Angel Ruben L.; Armas-Aguirre, Jimmy; Mayorga, Santiago Aguirre (IEEE Computer Society, 2023-01-01)
    In this paper, we propose an optimization model for medical services processes to reduce waiting time using process mining. In medical services, there is a high percentage of dissatisfaction with medical care due to the processes related to appointment booking and waiting time for medical consultation. As a result, patients change medical services due to the urgency of the symptoms they suffer, generating distrust in health services in Peru. Through a medical information system, events of medical care processes are collected for analysis using the Celonis tool. The process mining discipline uses the discovery of the study process to identify existing bottlenecks in the process and violations that are included when monitoring process events. The proposed model is based on identifying the existing bottlenecks in the processes, which are appointment booking and office care, as these processes take an average of 135 minutes to execute, and this leads to patient dissatisfaction. The model is composed of 4 main phases: 1. Objectives definition and data processing phase; 2. For the validation of the proposal, a test scenario was defined in a Peruvian public health services organization (ESSALUD) in Satipo, Peru. Preliminary results show that the model reduces by 64% the average time corresponding to the medical consultation process and by 98% the appointment booking. Finally, optimization results increased by 45% and 46%, respectively.
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  • Innovating Journalism Education with Podcasts: A Revolutionary Teaching Tool

    Palomino-Flores, Paola; Paul, David; Cristi-Lopez, Ricardo (IEEE Computer Society, 2023-01-01)
    As digital platforms continue to rapidly replace traditional forms of media; journalism students require new skills to succeed in their future careers. This article examines the innovative use of podcasts as a teaching tool in journalism education, offering students the opportunity to develop storytelling and digital communication skills. The benefits and challenges of integrating podcasts into the curriculum are discussed, along with examples of successful podcasting projects. The importance of innovation in journalism education is emphasized to keep up with the changing media landscape. The potential of podcasts to transform journalism education and prepare students for a career in the digital age is underscored. By exploring the use of podcasts as a revolutionary teaching tool in journalism education, this paper reveals a new frontier in the field.
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  • Method of marketing products through sales promotion to increase sales in a retail Mype

    Antúnez-Hernández, Diego; Quispe-Cervantes, Lizbeth; Cespedes, Carlos; Torres-Sifuentes, Carlos; Raymundo, Carlos; Dominguez, Francisco (Latin American and Caribbean Consortium of Engineering Institutions, 2023-01-01)
    In Peru, micro and small enterprises (Mypes) are of significant importance to the country's economy. However, over 50% of Mypes could potentially disappear due to a lack of customers, which hinders their long-term sales growth. The problem addressed in this research article is the low growth of Mypes in the retail trade sector. Therefore, this research aims to employ a method to increase sales not only for a specific retailer but also for a Mype store within a bazaar. After analyzing the situation of Mypes, a diagnosis of the current situation is conducted, and the main causes of the problem are identified in order to find a product marketing model to increase sales in a Mype. Finally, the model is applied through a case study in a retail Mype located in a popular market in Peru, resulting in a sales growth of 5.95%. In conclusion, the model successfully increased sales and consequently boosted annual sales growth.
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  • Model for Implementing a IoMT Architecture with ISO/IEC 27001 Security Controls for Remote Patient Monitoring

    Alegria, Brandon; Wong, Lenis; Bedriniana, Diego (IEEE Computer Society, 2022-01-01)
    Due to the recent pandemic, the healthcare sector has been forced to incorporate new technologies into its systems, such as IoT and Fog Computing. However, being new technologies, they are prone to security breaches. From this context, it is identified that medical systems do not have a sufficient level of security, due to the use of new technologies such as IoT and the lack of controls to protect these new technologies. Therefore, a model for implementing an Internet of Medical Things (IoMT) Architecture with ISO/IEC 27001 security controls for remote patient monitoring is proposed. This model has 4 stages: Stage 1 selects an information security standard for the healthcare sector. Stage 2 selects the information security controls of the selected standard. Stage 3 selects and evaluates an IoMT architecture applicable to the healthcare sector. And Stage 4 designs the information security controls for each layer of the IoMT architecture. The IoMT architecture and information security controls are simulated and experimented with physicians (the productivity of the system) and with information security expert (the quality of the implemented controls). The results of the first experiment show that 'effectiveness', 'productivity', and 'satisfaction' regarding the use of the IoMT architecture have an average rating of 4.05 (high level). The results of the second experiment show that 'Information Security', 'Awareness' and 'Security Incident Management' regarding the quality of the security controls implemented have an average rating of 3.65 (high level).
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  • Oral and general health conditions involved in periodontal status during pregnancy: a prospective cohort study

    Gil-Montoya, J. A.; Rivero-Blanco, T.; Leon-Rios, X.; Exposito-Ruiz, M.; Pérez-Castillo, I.; Aguilar-Cordero, M. J. (Springer Science and Business Media Deutschland GmbH, 2023-12-01)
    Purpose: Pregnancy is a period in a woman’s life that has important consequences on oral health, particularly for gingival health. Present study aims to identify women at higher risk of developing periodontal disease (gingivitis and periodontitis) during late pregnancy and evaluate how this condition evolves during this period. Methods: Prospective cohort study was designed with pregnant women who were assessed during the first and third trimesters of gestation in a southern Spanish public hospital. Data regarding gingival and periodontal health, oral hygiene, and overall health status (obesity and diabetes mellitus) were collected. Reporting followed STROBE checklist. Results: Significantly higher number of women had the periodontal and gingival disease in the third trimester of gestation compared with in early pregnancy. In the third trimester of gestation, 42 (28.6%) and 63 (42.9%) of women presented symptoms of periodontal disease and gingival disease, respectively. Obesity (OR 2.834; 95%CI 0.919–8.741), worse oral hygiene during the first trimester of gestation (OR: 4.031; 95%CI 2.12–7.65), and periodontal disease during early pregnancy (OR: 15.104; 95%CI 3.60–63.36) most effectively predicted periodontal disease during late pregnancy. Conclusions: Pregnancy is associated with exacerbated periodontal and gingival disease symptoms throughout the different trimesters of gestation. Obesity and oral hygiene during early pregnancy were the risk factors that most contributed to the aforementioned changes in periodontal disease.
    Acceso abierto
  • Clinical phenotypes of multisystem inflammatory syndrome in children (MIS-C) associated with COVID-19

    Alvarado-Gamarra, Giancarlo; Del Aguila, Olguita; Dominguez-Rojas, Jesús; Chonlon-Murillo, Kenny; Atamari-Anahui, Noé; Borcic, Aida; Sánchez, Sandra; Huamani-Echaccaya, Pablo; Garcés-Ghilardi, Raquel; Estupiñan-Vigil, Matilde (Sociedad Chilena de Pediatria, 2022-01-01)
    The multisystem inflammatory syndrome in children associated with COVID-19 (MIS-C) is infre-quent but potentially lethal. There are few reports of this disease and its phenotypes in Latin America. Objective: To describe the characteristics of the clinical phenotypes of MIS-C in hospitalized patients in Lima, Peru. Patients and Method: A descriptive and retrospective study in patients under 14 years old with a diagnosis of MIS-C at the Hospital Nacional Edgardo Rebagliati Martins (Lima, Perú), from April 2020 to August 2021. Clinical-demographic and microbiological variables were recorded. According to these, patients with MIS-C were classified into the shock phenotype, Kawasaki disease (KD) without shock, and the fever and inflammation phenotype, analyzing their clinical outcomes. Results: 58 patients were analyzed. 32 (55.2%) presented the shock phenotype, 15 (25.8%) Kawasaki disease (KD) phenotype without shock, and 11 (19%) fever and inflammation phenotype. In the shock phenotype, 17 had KD. The mean age was 7 ± 3.5 years and 67.2% were males. Gastrointes-tinal and mucocutaneous manifestations predominated in all phenotypes. The mortality was 3.5%. The frequency of coronary aneurysms was 10.2%. Most patients received immunomodulatory and antiplatelet treatment. Patients with shock phenotype showed greater involvement in inflammatory markers, hematological dysfunction, and myocardial injury, with a higher frequency of respiratory failure and invasive mechanical ventilation. Conclusions: In our case series, patients with shock phenotype were the most frequent and had worse clinical outcomes. Active surveillance of clinical phenotypes is needed to make an early diagnosis and management to improve the prognosis in these patients.
    Acceso abierto
  • Andragogy reception in school education during the COVID-19 pandemic in Peru

    Paipay, Dilan; Gomero, Giancarlo (Institute of Electrical and Electronics Engineers Inc., 2022-01-01)
    The article addresses how the application of the principles of andragogy is perceived in basic education during the COVID-19 pandemic in Peru. This study has a naturist view, follows a research methodology with a phenomenological design and a quality approach. The analysis is engaged from an interview application semi structured as an instrument applied to twelve teachers in public and private institutions of basic regular education in Peru. Among the results it was found in the teachers training process changing from formal education to online had many issues in its execution due to lack of strategies and technological resources. Besides, most teachers expressed their unconformity with the loaded work process and training they received although they had improvements within their media capabilities. In this sense, teachers manifested the lack of the horizontal principle from the andragogy principle, opposite to this they developed the participation and synergy between professors to face challenges. Furthermore, its manifested in this study that due to the training and transitioning's process complexities some teachers decided to drop out of their educational facilities. The answers obtained offer information to forecast the teachers training in events of worldwide disaster such as COVID-19. According to the results obtained in this study we can have the teachers training process general view highlighting social inequity, educational and digital that has been installed for a long time in these educational systems, both public and private sectors.
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  • Appropriation of Digital Technology in Popular Education

    Casano, Leyla; Llaque, Paul; MacEdo-Janto, Gloria (Institute of Electrical and Electronics Engineers Inc., 2022-01-01)
    The purpose of this research is to give an account of the appropriation of digital technology by a group of economically vulnerable families, within the framework of a popular education experience, in a district of metropolitan Lima. The methodology used follows the qualitative approach, with case study design, and with exploratory scope. It is concluded that, with adequate planning and strategies, digital appropriation is possible and its results are encouraging; however, the technological limitations of the social segment require constantly updating the process and even resorting to a combination of physical and digital components.
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  • On-site and Online Academic Performance During the Pandemic

    Llaque, Paul; Figueroa-Ocampo, Aldo; Fernandez, Christian (Institute of Electrical and Electronics Engineers Inc., 2022-01-01)
    This article analyzes the on-site and online academic performance obtained in a written communication course at a Peruvian university in the context of the COVID-19 pandemic. The methodology applied corresponds to Grounded Theory in data collected and codified through two procedures: the reconstruction of pedagogical strategies and the interpretation of quantitative data corresponding to learning outcomes. Despite the adverse context, it is concluded that the effective use of pedagogical approaches overcomes situational constraints. Moreover, it achieves similar learning outcomes in both face-to-face and online modalities.
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