Nestor Alvarado-Bravo
University National of Callao

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Perception of teaching performance in the virtual learning environment Guillermo Morales-Romero; Nicéforo Trinidad-Loli; Beatriz Caycho-Salas; Yanet Paucar-Manrique; César León-Velarde; Sofia Gamarra-Mendoza; Nestor Alvarado-Bravo; Almintor Torrez-Quiroz; Carlos Aliaga-Valdez; Florcita Aldana-Trejo
International Journal of Evaluation and Research in Education (IJERE) Vol 10, No 4: December 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v10i4.22056

Abstract

This article aims to analyze the perception of the students of the professional school of business administration about the teaching performance in the virtual learning environment during the COVID-19 pandemic. When developing the research, it was determined that there is a good teaching performance, according to the perception of the students. However, it was identified that the factors of domain of the topic and class session management, present a better perception in this context of virtual learning; while the didactic strategies factor is the one that presents a not so favorable perception. In addition, through a comparative analysis, it was determined that the didactic strategies and planning factors have suffered a negative variation with respect to the perception per teacher, when moving from face-to-face to virtual learning, since, of the total of 17 specialty teachers, seven of them one negative variation. These results are validated by the linear regression test, where an R2 value of 0.965 is calculated, with respect to the didactic strategies factor. It means that this factor influences 96.5% on the perception of students with the global factor and an R2 value of 0.921 for the planning factor, which indicates an influence of 92.1%.
The perception of Engineering students toward teaching performance on online learning during COVID-19 pandemic Teodoro Díaz-Leyva; Carlos Dávila-Ignacio; Jorge Sanchez-Ayte; Orlando Ortega-Galicio; Soledad Olivares-Zegarra; Nestor Alvarado-Bravo; Salvador Trujillo-Perez; Almintor Torres-Quiroz; José Razo-Quispe; Florcita Aldana-Trejo
International Journal of Evaluation and Research in Education (IJERE) Vol 11, No 2: June 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v11i2.22072

Abstract

This study analyzed the perception of Mechanical Engineering and Systems Engineering students in the process of evaluating teacher performance in online teaching due to the COVID-19 pandemic. This was descriptive-correlational research. The results showed that the Systems Engineering students performed a better perception with the class session management factor and low qualification to the didactic strategies factor. Likewise, the Pearson correlation test indicated a significant relationship (0.000) between the specific factors on the overall performance factor. The topic factor has the greatest strength on the qualification of the overall performance factor, with a constant Pearson's correlation of 0.964. The Mechanical Engineering students showed a better perception with the class session planning factor and low qualification to the didactic strategies factor. Likewise, the Pearson correlation test indicated a significant relationship (0.000) between the specific factors on the overall performance factor. The didactic strategies factor being the one that has the greatest strength on the qualification of the overall performance factor, with a correlation constant Pearson's of 0.983.
Perception of professional skills acquired in online learning among electronic engineering students Nestor Alvarado-Bravo; Salvador Trujillo-Perez; Florcita Aldana-Trejo; Juan Antón-De Los Santos; Marco Anton-De Los Santos; Alejandro Paredes-Soria; Vidalina Chaccara-Contreras; Víctor Villanueva-Acosta; Madison Huarcaya-Godoy; Katherine Rodríguez-Zevallos
International Journal of Evaluation and Research in Education (IJERE) Vol 11, No 3: September 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v11i3.22639

Abstract

The article aims to analyze the perception of professional skills acquired in online learning among electronic engineering students. The research method is qualitative, with a descriptive approach, since it focuses on analyzing the statistics of the students' perception (frequency of satisfaction levels). Initially, the reliability of the instrument was determined using Cronbach's Alpha, obtaining a consistency coefficient of 0.967 and 0.932, in the academic semesters 2020-I and 2020-II, respectively. The data collected by means of a virtual questionnaire were processed in the SPSS software transformed into the Likert scale. The results obtained show a high perception among electronic engineering students in reference to the professional skills they have acquired. There is an increase in satisfaction from 66.78% (2020-I) to 74.26% (2020-II) between the first and second academic semester, despite the abrupt and unexpected change in the teaching-learning modality, in the second semester achieved a greater adaptation of this process. However, the online learning method should continue to be improved so that students perceive with greater satisfaction that they possess the skills to solve problems and cases related to the specialty) and the skills to master practical professional skills.
Automatic control of motors through Simocode pro, and its effect on the performance of the process of filling and dispensing of chemical inputs Omar Chamorro-Atalaya; Augusto Sanchez-Ayte; Carlos Dávila-Ignacio; Orlando Ortega-Galicio; Nestor Alvarado-Bravo; Almintor Torres-Quiroz; Florcita Aldana-Trejo
Indonesian Journal of Electrical Engineering and Computer Science Vol 23, No 1: July 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v23.i1.pp179-187

Abstract

This article aims to describe the design of an automatic control system for the automated management of motor drives through Simocode pro; and determine the effect from the quantitative point of view on the performance of the filling and dispatch process of chemical inputs from the perspective of dispatch time and the amount of input spilled in the tank filling stage. For this, the programming of the programmable logic controller was carried out using the simatic step 7 software, then the distributed control system (DCS Siemens S410) was programmed, using the PCS7 V8.1 software, where the control logic and simocode pro integration is carried out through the profibus protocol, which is monitored from an human-machine interface (HMI) interface. Once the control system was implemented, it was possible to reduce the operating time from 60 minutes on average to 35 minutes, which reflects an improvement of 41.66%; this in turn generates an increase in the number of tank filling by 62.84%. Likewise, it is possible to reduce the amount of chemical inputs spilled in the filling stage; this improvement represents 88.60%.