Jadán Guerrero, Janio
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Jadán Guerrero, Janio
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Quito
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janiojadan@uti.edu.ec
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56267555100

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Understanding Bullying and Cyberbullying Through Video Clips on Social Media Platforms

2023 , Jadán Guerrero, Janio , Arias Flores, Hugo Patricio , Acosta-Vargas P.

Bullying and cyberbullying are widely recognized as complex problems that have serious negative repercussions for the health and society of children and adolescents. Bullying can take place in-person at school, home or work, irrespective of age, gender, or role. Cyberbullying can take place on messaging platforms, social media platforms, gaming platforms, or marketing platforms. For example, posting embarrassing photos or videos of someone on social media sending hurtful or spreading lies, as well as abusive or threatening messages, images, or videos through messaging platforms. Offenders impersonate someone and send malicious messages to others in their name or through fake accounts. In this sense, the use of short videos based on the principles of microlearning is scented as a proposal to understand and prevent bullying and cyberbullying. The objective of this article is to analyze how video clips are used on social platforms to raise awareness of bullying and cyberbullying and to propose the creation of new video clips as resources for an awareness-raising MOOC. The methodology followed a phase of analysis of videos on the TikTok and YouTube networks, in order to have a baseline prior to the creation of new video clips by twelve students of the Digital Design and Multimedia career. The content of the videos was evaluated by a psychologist to finally select the appropriate ones for a marketing campaign of an awareness MOOC. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Analysis and improvement of the web accessibility of a tele-rehabilitation platform for hip arthroplasty patients

2019 , Calle-Jimenez T. , Sanchez-Gordon S. , Rybarczyk Y. , Jadán Guerrero, Janio , Villarreal S. , Esparza W. , Acosta-Vargas P. , Guevara C. , Nunes I.L.

This paper explains some of the challenges that exist to make accessible the web interfaces of a Tele-rehabilitation platform for hip arthroplasty patients and propose an iterative method to improve the level of accessibility using automatic evaluation tools. Web accessibility is not concerned with the specific conditions of people who use the Web, but with the impact that their conditions have on their ability to use it. If the web interfaces of the Tele-rehabilitation platform for hip arthroplasty patients are not accessible enough, the patients will not be able to understand, perceive or operate adequately the platform to benefit completely of the physical therapy. The Web Content Accessibility Guidelines (WCAG 2.0) provides a set of rules and recommendations to help solve the problems of Web accessibility. Additionally, there are evaluation tools that allow identifying main web accessibility problems. These tools are best exploited when used by accessibility experts. The purpose of this research is threefold. First, to present the results of a web accessibility evaluation of the web interfaces of the Tele-rehabilitation Platform for Hip Arthroplasty Patients using three the evaluation tools: WAVE, AChecker and TAW. Second, to analyze the results presented by the tools according to the WCAG 2.0 guidelines to define a list of accessibility improvements. Third, to implement the improvements through the re-factorization of the existing code and re-testing the improved web interfaces to verify that they meet acceptable accessibility levels. © Springer International Publishing AG, part of Springer Nature 2019.

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Analysis and improvement of the usability of a tele-rehabilitation platform for hip surgery patients

2019 , Pilco H. , Sanchez-Gordon S. , Calle-Jimenez T. , Rybarczyk Y. , Jadán Guerrero, Janio , Villarreal S. , Esparza W. , Acosta-Vargas P. , Guevara C. , Nunes I.L.

The Tele-Rehabilitation platform for hip surgery allows patients to carry out part of their rehabilitation at home, without the need to travel long distances to a rehabilitation centre. A lack of usability that may prevent effectiveness, efficiency, and the satisfaction of patients, may lead to problems of confusion, error and delay, or even abandonment of the physical therapy. To perform the usability analysis, a set of heuristics were selected relating to aspects such as navigation, visual clarity, coherence, prevention of errors, user guidance, online help and user control. A cognitive walkthrough technique was also applied. With the results of the analysis, the design and implementation of improvements were performed. The web interfaces of the Tele-Rehabilitation platform were evaluated once again and compared with the baseline to ensure there was an improvement in usability. © Springer International Publishing AG, part of Springer Nature 2019.

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A Case Study: Developing reusable Learning Objects

2021 , Santorum M. , Carrion-Toro M. , Guacapina M.-B. , Acosta-Vargas P. , Jadán Guerrero, Janio

Information and Communication Technologies (ICT) offer the possibility of creating a massive resource and knowledge base in the educational field. Learning Objects (LOs) are digital instructional elements that help users' complete tasks. This diversity has made it difficult to easily integrate them into educational software solutions, which is why this document presents a study of the characteristics, standards, and tools for creating and reusing OAs. For this purpose, a systematic literature review of 1023 scientific articles were carried out. With the results of 42 selected articles, a website was developed based on the SCRUM methodology, which integrates OAs oriented to the use of ICT tools to contribute to virtual education generated by the global crisis of the pandemic by the COVID-19. This study can serve as an input in future studies related to SCRUM-based learning objects. © 2021 IEEE.

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Digital Resources and Children’s Learning: Parental Perception During the Pandemic

2021 , Alvites-Huamaní C. , Arias Flores, Hugo Patricio , Jadán Guerrero, Janio , Acosta-Vargas P.

The coronavirus disease (COVID-19) pandemic has disrupted family life around the world. Families had to adapt to teleworking and online learning to maintain young children’s learning at home. During quarantine and nationwide school closures, parents of young children and children with disabilities had to act as teachers, therapists and caregivers. The role of parents gained relevance and it was needed to be able to guide their children to use technology during online learning. Digital resources provided an opportunity for children to keep learning, take part in games and keep in touch with their friends and teachers. But it increased access online brings heightened risks for children’s safety, protection and privacy, so it is necessary that parents observe their children and support them. In this context, this paper presents the perception from parents about on the use of digital resources and techno-logical tools that teachers applied before and during pandemic. This study surveyed 773 Peruvian parents to know which of the resources used by teachers helped their children to understand the content of the course and which of tools allowed a better interaction with their classmates and teachers. According to the results of the survey, the most used resource before pandemic has been WhatsApp (32.1%), followed by office tools (Word or Excel 20.3%) and email (8.7%). However, for carrying out online activities during the pandemic the most digital used resource by the teachers has been WhatsApp (29.9%), then YouTube (17.6%), Google Drive (16.7%) and Google Docs. (7.9%). Regarding to a good interaction to increase a better interaction between their classmates and teacher were Zoom (61.7%), Google Meet (25.1%) and WhatsApp (11.6%). These results suggested that the use of digital resources and technological tools during the pandemic has been problematic and challenging for families. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Improve Accessibility and Visibility of Selected University Websites

2020 , Acosta-Vargas P. , Ramos Galarza, Carlos , Salvador-Ullauri L. , Chanchí G.E. , Jadán Guerrero, Janio

Currently, there are millions of websites, but not all of them are accessible and visible in search engines, and in the different devices and technologies used. The purpose of this research is to 1) suggest an accessibility evaluation model according to the Web Content Accessibility Guidelines 2.1 standards; 2) correlate Webometrics and SCImago rankings to improve visibility, and 3) determine whether an accessible website can improve visibility. As a case study, the authors applied to 30 web pages from Latin American universities. The results indicate that although an educational institution is in the first rankings of the Webometrics and SCImago classification, they do not necessarily satisfy web accessibility requirements. This study can be a guide for the definition of institutional efforts to improve accessibility and visibility in the design of more inclusive and visible websites. © 2020, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Improvement of Accessibility in Medical and Healthcare Websites

2021 , Acosta-Vargas G. , Acosta-Vargas P. , Jadán Guerrero, Janio , Salvador-Ullauri L. , Gonzalez M.

Health information on the Web can make patients better informed about a disease, which according to several studies leads to better treatment results. However, the health information found on the Web is not accessible because it presents barriers that prevent people from easily accessing it because it does not comply with the standards of the Web Content Accessibility Guidelines (WCAG) 2.1. Therefore, in this study, we present an analysis of the accessibility of the seven most visited health websites in the world. To analyze the accessibility of medical websites, we apply an automatic review method. The results show that health websites have frequent problems related to the lack of alternative text, empty links, and contrast errors. This research can contribute to future work related to accessibility in health and medical sites. Finally, we suggest designing a combined method to review each website’s accessibility barriers to complement the automatic review. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Towards Accessibility Assessment with a Combined Approach for Native Mobile Applications

2021 , Acosta-Vargas P. , Guaña-Moya J. , Jadán Guerrero, Janio , Alvites-Huamaní C. , Salvador-Ullauri L.

According to the Global Digital Report of 2020, mobile applications have increased significantly in recent years; more than 5.19 billion people use cell phones, with many users up to 124 million compared to 2019. There are thousands of mobile apps for education, health, business, economy, banking, each with its style and form. However, not all applications meet the standardization requirements proposed by the World Wide Web Consortium, which sets standards for applications or products to have an acceptable level of access and structure. This investigation got as a case study the accessibility problems of six mobile applications most used in 2020. In the accessibility assessment, we apply a combined method that performs automatic review with Accessibility Scanner and manual accessibility review. This research can contribute to future studies related to accessibility in native mobile applications. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Accessibility challenges of e-commerce websites

2022 , Acosta-Vargas P. , Salvador-Acosta B , Salvador-Ullauri L , Jadán Guerrero, Janio

Today, there are many e-commerce websites, but not all of them are accessible. Accessibility is a crucial element that can make a difference and determine the success or failure of a digital business. The study was applied to 50 e-commerce sites in the top rankings according to the classification proposed by ecommerceDB. In evaluating the web accessibility of e-commerce sites, we applied an automatic review method based on a modification of Website Accessibility Conformance Evaluation Methodology (WCAG-EM) 1.0. To evaluate accessibility, we used Web Accessibility Evaluation Tool (WAVE) with the extension for Google Chrome, which helps verify password-protected, locally stored, or highly dynamic pages. The study found that the correlation between the ranking of e-commerce websites and accessibility barriers is 0.329, indicating that the correlation is low positive according to Spearman’s Rho. According to the WAVE analysis, the research results reveal that the top 10 most accessible websites are Sainsbury’s Supermarkets, Walmart, Target Corporation, Macy’s, IKEA, H&M Hennes, Chewy, Kroger, QVC, and Nike. The most significant number of accessibility barriers relate to contrast errors that must be corrected for e-commerce websites to reach an acceptable level of accessibility. The most neglected accessibility principle is perceivable, representing 83.1%, followed by operable with 13.7%, in third place is robust with 1.7% and finally understandable with 1.5%. Future work suggests constructing a software tool that includes artificial intelligence algorithms that help the software identify accessibility barriers. © 2022 Acosta-Vargas et al.

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Implementation of controls for insertion of accessible images in open online editors based on WCAG guidelines. Case studies: Tinymce and summernote

2020 , Sanchez-Gordon, S. , Calle-Jimenez, T. , Villarroel-Ramos J. , Jadán Guerrero, Janio , Guevara Maldonado, César Byron , Lara Álvarez, Patricio , Acosta-Vargas P. , Salvador-Ullauri L.

It is important to raise awareness among people who create web content about barriers that exist for people with visual disabilities to perceive images. This study had for purpose the implementation of features and controls for insertion of accessible images in two open online editors: TinyMCE and Summernote. TinyMCE is used in content management systems such as WordPress, Joomla and Drupal. Summernote is an open online editor distributed under an open MIT license. The accessibility of TinyMCE was improved in the insertion of images by adding entry fields for the type of image to be inserted, long description and title. As for Summernote, in the option to insert images, entry fields were added for the type of image to be inserted, alternative text, long description and title. Controls were implemented to validate mandatory and optional fields according to the type of image. The purpose is that open online editors comply with Part B of the Authoring Tool Accessibility Guidelines. A discussion is presented about how the original code of the two open online editors was written, how image accessibility was improved and how evaluation was performed via test scenarios, automated tools and usability surveys to both content authors and blind users. The HTML code generated with both editors showed compliance with the Web Content Accessibility Guidelines. Blind users stated that they were able to perceive the images when interacting with web pages created with both editors. © Springer Nature Switzerland AG 2020.

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