The utilisation of online platform Blackboard Learn for Teaching and Learning (T & L) has become an essential and obligatory component of Higher Education Institutions (HEIs). This study research aims to examine the difficulties and potential of its implementation at a Historically Disadvantaged Institution (HDI) like University of Limpopo (UL), with a focus on the Bachelor of Arts (BA) programme in Criminology and Psychology (Crim & Psych) as guided by University of Limpopo Faculty of Humanities Multimodal Teaching and Learning Plan (UL FHMTLP). This qualitative study employed an empirical research design, selecting Twelve (12) permanent Academics/Lecturers from the Department of Criminology and Criminal Justice at UL for interview purposes. The verbatim responses from the interviews were analysed to identify the key themes and sub-themes of the study using the inductive Thematic Content Analysis (TCA) method. This study revealed that there is a lack of utilisation of Blackboard Learn at UL, as well as ineffective adaptation of current strategies and UL FHMTLP implementations. Many Lecturers still depend on contact T & L and the use of Blackboard Learn to connect the operations of this programme is currently unsuccessful. Recommendations consist of regular training and refreshment courses on the application of this technology, such as the Learning Management System (LMS) provided by the Information and Communications Technology [ICT]-electronic-(e)-Learning Unit. This could potentially facilitate collaborations between Natural Sciences (Technology - Blackboard Learn) and Human Sciences (Crim & Psych) to generate new knowledge, while also clearly providing the advantages of technology utilisation for T & L at UL. This kind of innovation could accommodate "economical, educational, technical, and social transformations" to address the mentioned challenges and opportunities, while making contributions to the field of professorship, with a focus on the South African Future Professors Programme (FPP) Phase 2 Cohort 1 2022-2023, utilising Blackboard Learn for T & L in a HDI to outline the existing challenges and possibilities.

ABSTRACT Information and Communications Technologies (ICT), as a basic support for educational activities, have influenced the relationships between students, teachers, and the family itself, due to the ease of access to new knowledge, as well as the spread of alterations. psychological conditions that can trigger anxiety, irritation and stress behaviors. Cyberbullying or cyberharassment is an educational and social problem that negatively influences its victims. The objective was to analyze the effect of a program of socio-emotional strategies to reduce cyberbullying, in upper basic level students of an educational institution in Ecuador, during 2023. A mixed methodology with a quasi-experimental approach was used. The sample was intentional, made up of 69 8th year high school students between 10 and 12 years old. A control group and an experimental group to which a socio-emotional strategies program was applied were compared. The variables analyzed were: level of cyberbullying (electronic insults, impersonation and exclusion) and Socio-emotional strategies program. The pre-test and post-test analyze were contrasted with the non-parametric Mann Whitney U Test, after descriptive analysis. Statistically significant differences were found between the averages of the experimental group compared to the control group, with lower values in the levels of cyberbullying in the post-test in the three dimensions. The results obtained constitute a practical proposal with significant impact to reduce cyberbullying in high school students of a public institution in Ecuador.

RESUMEN Las Tecnologías de la Información y las Comunicaciones (TIC), como soporte básico para las actividades educativas, han influenciado en las relaciones entre alumnos, docentes, y la propia familia, por las facilidades de acceso a nuevos conocimientos, además por la propagación de alteraciones psicológicas que pueden desencadenar comportamientos de ansiedad, irritación y estrés. El ciberbullying o ciberacoso, es un problema educacional y social, que influye negativamente en sus víctimas. El objetivo fue analizar el efecto de un programa de estrategias socioemocionales para disminuir el ciberbullying, en los estudiantes de nivel básico superior de una institución educativa en Ecuador, durante 2023. Se utilizó una metodología mixta con enfoque cuasi experimental. La muestra fue intencional, compuesta por 69 estudiantes de 8vo año de básica superior con edades entre 10 y 12 años. Fue comparado un grupo de control y otro experimental al que se le aplicó un Programa de estrategias socioemocionales. Las variables analizadas fueron: nivel de ciberbullying (insultos electrónicos, suplantación y exclusión) y Programa de estrategias socioemocionales. Los análisis pre test y pos test, fueron contrastados con la Prueba no paramétrica U de Mann Whitney, previo análisis descriptivo. Se constataron diferencias estadísticamente significativas entre promedios del grupo experimental con respecto al de control, con valores más bajos en los niveles de ciberbullying en el pos test en las tres dimensiones. Los resultados obtenidos constituyen una propuesta práctica de impacto significativo para la disminución del ciberbullying en estudiantes de básica superior de una institución pública en Ecuador.

RESUMO As Tecnologias de Informação e Comunicação (TIC), como suporte básico das atividades educativas, têm influenciado as relações entre alunos, professores e a própria família, pela facilidade de acesso a novos conhecimentos, bem como pela propagação de alterações psicológicas. que podem desencadear comportamentos de ansiedade, irritação e estresse. O cyberbullying ou assédio cibernético é um problema educacional e social que influencia negativamente as suas vítimas. O objetivo foi analisar o efeito de um programa de estratégias socioemocionais para reduzir o cyberbullying, em estudantes de nível básico superior de uma instituição de ensino no Equador, durante 2023. Foi utilizada uma metodologia mista com uma abordagem quase experimental. A amostra foi intencional, composta por 69 alunos do 8º ano do ensino médio entre 10 e 12 anos. Foram comparados um grupo controle e um grupo experimental ao qual foi aplicado um programa de estratégias socioemocionais. As variáveis analisadas foram: nível de cyberbullying (insultos eletrônicos, falsificação de identidade e exclusão) e programa de estratégias socioemocionais. As análises pré-teste e pós-teste foram contrastadas com o Teste não paramétrico Mann Whitney U, após análise descritiva. Foram encontradas diferenças estatisticamente significativas entre as médias do grupo experimental em comparação ao grupo controle, com valores mais baixos nos níveis de cyberbullying no pós-teste nas três dimensões. Os resultados obtidos constituem uma proposta prática com impacto significativo para reduzir o cyberbullying em estudantes do ensino médio de uma instituição pública no Equador.

One advantage of the Fourth Industrial Revolution (4IR) era is the expedient exchange of goods and services via the Internet. The Electronic Communications and Transactions Act 25 of 2002 (ECTA) plays a critical role in regulating transactions and communications. However, ECTA excludes the provisions of the Wills Act 7 of 1953 from its ambit. Inevitably, this creates difficulties for the recognition and/or validity of electronic wills in South Africa. If technology is not acknowledged and applied in the space of testate succession, enhanced 4IR innovations threaten the Wills Act with obsolescence. We argue in this contribution that the rapid changes brought about by the 4IR and the exclusion of the Wills Act from the ambit of ECTA mean that testate succession is not responding to the current impact of technology on people. In this contribution we seek to create a synergy between the two statutes with a view to ensuring the relevance of the Wills Act in the 4IR. Ultimately we propose that both statutes be amended to cater for electronic wills. This can be achieved by combining the use of digital signatures and Public Key Infrastructure (PKI) technology. In reaching this conclusion we draw some lessons from the statutory changes in the United States of America (USA).

Our understanding of contracts continues to evolve. Electronic contracts that have typically taken the form of shrink-wrap, click-wrap, web-wrap, scroll-wrap, multi-wrap and sign-in-wrap agreements have undergone further developments with the introduction of automation in electronic contractual engagements and, more recently, the advent of the so-called "smart contract". Different types of smart contracts exist, including smart contracts that operate on blockchain technology. Despite these developments in commercial and contractual activities, the South African legal framework does not officially recognise smart contracts. The use of the Electronic Communications and Transactions Act, 2002 (ECTA) as a mechanism for the regulatory oversight of smart contracts in South Africa is, in its current form, woefully inadequate and limited in its application to smart contracts. Other jurisdictions, like the European Union (EU), have passed draft legislative and regulatory documentation called the Data Act to address smart contracts, whilst the UK Law Commission has provided recommendations to regulate smart contracts. As South Africa currently has no equivalent to the EU's draft Data Act and has not considered the operation of smart contracts in South Africa, the position in the EU and United Kingdom (UK) is considered in this paper to provide guidelines as to the aspects that it would be necessary to regulate in a South African context.

ABSTRACT Background: educational systems face the challenge of using information and communications technologies to provide their students with the necessary tools and knowledge imposed in the 21st century. Objective: design the thematic structure of the electronic book for the subject Basic Computing in medical sciences. Methods: a development research with a qualitative approach was carried out at the “Calixto García” Faculty of Medical Sciences in the 2022 academic year. Theoretical level methods were used: historical-logical, structural systemic, modeling and inductive-deductive. At the empirical level: interview and questionnaire to verify the links and relationships offered in the theoretical references related to the characteristics that a textbook should have as a teaching aid for the teaching-learning process. Results: the Basic Computing electronic book was prepared where the objectives and development of skills declared in the subject program were taken into account; it contains five topics; It is structured into a cover, index and chapters; It has proposed exercises and solved exercises, diagrams, animations and images, links where additional and precise information can be extracted, and multiple bibliographic documents. Conclusions: the electronic book for the Basic Computing subject strengthens the development of the educational teaching process and serves as a basis for the formation of skills once the student graduates. It was assessed as adequate according to the objectives of the course, by the experts consulted.

RESUMEN Fundamento: los sistemas educativos enfrentan el desafío de utilizar las tecnologías de la información y las comunicaciones para proveer a sus estudiantes de las herramientas y conocimientos necesarios impuestos en el siglo XXI. Objetivo: diseñar la estructura temática del libro electrónico para la asignatura Informática Básica en las ciencias médicas. Métodos: se realizó una investigación de desarrollo con enfoque cualitativo en la Facultad de Ciencias Médicas “Calixto García” en el curso 2022. Se utilizaron métodos de nivel teórico: histórico-lógico, sistémico estructural, modelación e inductivo- deductivo. En el nivel empírico: entrevista y cuestionario para verificar los nexos y relaciones que se ofrecen en los referentes teóricos relacionados con las características que debe poseer un libro de texto como medio de enseñanza en el proceso docente educativo. Resultados: se elaboró el libro electrónico de Informática Básica donde su tuvieron en cuenta los objetivos y desarrollo de habilidades declarados en el programa de la asignatura; contiene cinco temas; está estructurado en portada, índice y capítulos; tiene ejercicios propuestos y ejercicios resueltos, diagramas, animaciones e imágenes, vínculos donde se puede extraer información adicional y precisa, y múltiples documentos bibliográficos. Conclusiones: el libro electrónico para la asignatura Informática Básica fortalece el desarrollo del proceso docente educativo y sirve de base para la formación de habilidades una vez graduado el estudiante. Fue valorado como adecuado acorde a los objetivos del curso, por los expertos consultados.

Abstract The article analyzes the participation of social actors in the management of the circular economy of urban solid waste in the state of Chihuahua, Mexico. The methodology consisted of semi- structured interviews, virtual interactive workshops (with the implementation of electronic surveys), surveys of municipal governments representatives, and personal communications. The results show that social actors barely glimpse the economic, social, and environmental meaning of betting on the circular economy. The article contributes to the analysis of the circular economy paradigm as a current sustainability tool. It is concluded that little has been studied about the circular economy in Mexico and that the participation of non-state actors has not been valued and used efficiently. The article reflects on what should and can be done with solid waste in Mexico in the future.

Resumen En el artículo se analiza la participación de los actores sociales en la gestión de la economía circular de los residuos sólidos urbanos en el estado de Chihuahua, México. La metodología consistió en entrevistas semiestructuradas, talleres interactivos virtuales (con aplicación de encuestas electrónicas), encuestas a representantes de gobiernos municipales y comunicaciones personales. Los resultados muestran que los actores sociales apenas vislumbran el significado económico, social y ambiental de apostar por la economía circular. El artículo contribuye con el análisis del paradigma de la economía circular como herramienta actual de la sostenibilidad. Se concluye que el concepto de economía circular ha sido poco estudiado en México y que la participación de los actores no estatales no ha sido valorada ni utilizada eficientemente. El artículo reflexiona en torno a lo que se debe y puede hacer con los residuos sólidos en México en el futuro.

Resumen Los procesos de digitalización del siglo XX extendieron el uso de Tecnologías de Información y Comunicación al campo de la salud. El artículo aborda la Historia Clínica Electrónica a partir de las críticas y debilidades señaladas por especialistas en Clínica Médica, Medicina General y/o de Familia del Área Metropolitana de Buenos Aires, Argentina. El diseño metodológico cualitativo incluyó 43 entrevistas realizadas entre junio de 2019 y marzo de 2020. El andamiaje teórico interpretativo articula tres campos: Comunicación y Salud; Biomedicina, Biopolítica y Tecnologías de Información y Comunicación; Subjetividad, Derechos y Género. Los principales resultados conciernen a cambios en las relaciones médico-paciente, registro y uso de datos, implicancias sobre los derechos y las subjetividades, potencialidades y problemáticas de la informatización en salud en un contexto de precaria infraestructura, desafíos en la regulación y desigualdades estructurales. Médica yo o Aires Argentina 4 201 2020 campos Salud Biomedicina Subjetividad Género médicopaciente, médicopaciente médico paciente, paciente médico-paciente datos subjetividades infraestructura estructurales 20 202 2

Abstract Digitalization has extended the use of information and communications technologies in the field of health. This article addresses electronic medical records drawing on the criticisms and weaknesses highlighted by clinical specialists, general practitioners, and family doctors working in the metropolitan region of Buenos Aires, Argentina. The qualitative research design included 43 interviews conducted between June 2019 and March 2020. We developed an interpretive framework structured around three categories: communications and health; biomedicine, biopolitics and information and communication technologies; subjectivity, rights and gender. The main results refer to: changes in doctor-patient relations; data recording and usage; implications for rights and subjectivities; potential and challenges of health informatization in a context of precarious infrastructure; and regulatory challenges and structural inequalities. specialists practitioners Aires Argentina 4 201 2020 categories biomedicine subjectivity gender to doctorpatient doctor patient relations usage subjectivities infrastructure inequalities 20 202 2

Resumo Os processos de digitalização do século XX estenderam o uso das Tecnologias da Informação e Comunicação ao campo da saúde. O artigo aborda o Registro Médico Eletrônico a partir das críticas e fragilidades apontadas por especialistas em Clínica Médica, Medicina Geral e / ou Família da Área Metropolitana de Buenos Aires, Argentina. O desenho metodológico qualitativo incluiu 43 entrevistas realizadas entre junho de 2019 e março de 2020. O referencial teórico interpretativo articula três campos: Comunicação e Saúde; Biomedicina, Biopolítica e Tecnologias de Informação e Comunicação; Subjetividade, Direitos e Gênero. Os principais resultados referem-se a mudanças nas relações médico-paciente, registro e uso de dados, implicações em direitos e subjetividades, potencialidades e problemas de informatização em saúde em um contexto de infraestrutura precária, desafios na regulação e desigualdades estruturais. Médica Aires Argentina 4 201 2020 campos Saúde Biomedicina Subjetividade Gênero referemse referem se médicopaciente, médicopaciente médico paciente, paciente médico-paciente dados subjetividades precária estruturais 20 202 2

RESUMO Este trabalho discute os benefícios de Tecnologias da Informação e Comunicação (TIC) na análise contextual a distância da situação-alvo durante a elaboração de um curso online de inglês para fins acadêmicos em sua perspectiva crítica. Essa análise, com foco no processo de publicação acadêmica em periódicos de alto impacto na área de ciência da computação, buscou identificar fatores que possam influenciar o aceite de artigos produzidos por pesquisadores brasileiros. Crenças e a experiência de autores brasileiros foram analisadas no referido processo via questionários eletrônicos e entrevistas remotas. Ademais, pareceres de artigos de pesquisa foram estudados, e os critérios avaliativos dessa comunidade, identificados. Por meio das TICs, uma ampla análise contextual foi possível, contemplando pesquisadores localizados em diversas partes do globo. Os resultados revelam práticas de pesquisa e publicação na área que podem fundamentar o desenho de tarefas voltadas à promoção do letramento acadêmico dos alunos. Em países em desenvolvimento, como o Brasil, economizar tempo e recursos, por meio das TICs, durante o desenho de cursos significa a possibilidade de investimento em um ensino relevante, que melhor atenda às necessidades discentes. TIC (TIC situaçãoalvo situação alvo crítica computação remotas Ademais estudados comunidade identificados TICs possível globo alunos desenvolvimento Brasil recursos relevante discentes

ABSTRACT This paper discusses the benefits of information and communications technology (ICT) in the contextual target situation analysis at a distance to design online critical English for academic purposes (CEAP) courses. A contextual investigation of the publishing process of high-impact journals in computer science is presented, which is aimed at identifying issues that might influence the publication of Brazilian researchers’ papers. The beliefs and experiences of Brazilian authors in the aforementioned process were analyzed through electronic questionnaires and remote interviews. Moreover, research articles’ reviews were studied to identify the community´s criteria for accepting or rejecting papers. Via ICT, a wider contextual analysis was possible with participants located in different parts of the world. Results provided relevant information about researching and publishing in the field, which may substantiate the design of tasks aimed at improving students’ critical academic literacy. For developing continental countries such as Brazil, saving time and resources through ICT in CEAP courses’ design means the possibility of investing in a more relevant instruction, which better attends to students’ contextual needs and wants. (ICT (CEAP courses highimpact high impact presented researchers papers interviews Moreover articles communitys community s world field students literacy Brazil instruction wants

Resumo Os processos de digitalização do século XX estenderam o uso das Tecnologias da Informação e Comunicação ao campo da saúde. O artigo aborda o Registro Médico Eletrônico a partir das críticas e fragilidades apontadas por especialistas em Clínica Médica, Medicina Geral e / ou Família da Área Metropolitana de Buenos Aires, Argentina. O desenho metodológico qualitativo incluiu 43 entrevistas realizadas entre junho de 2019 e março de 2020. O referencial teórico interpretativo articula três campos: Comunicação e Saúde; Biomedicina, Biopolítica e Tecnologias de Informação e Comunicação; Subjetividade, Direitos e Gênero. Os principais resultados referem-se a mudanças nas relações médico-paciente, registro e uso de dados, implicações em direitos e subjetividades, potencialidades e problemas de informatização em saúde em um contexto de infraestrutura precária, desafios na regulação e desigualdades estruturais.

Abstract Digitalization has extended the use of information and communications technologies in the field of health. This article addresses electronic medical records drawing on the criticisms and weaknesses highlighted by clinical specialists, general practitioners, and family doctors working in the metropolitan region of Buenos Aires, Argentina. The qualitative research design included 43 interviews conducted between June 2019 and March 2020. We developed an interpretive framework structured around three categories: communications and health; biomedicine, biopolitics and information and communication technologies; subjectivity, rights and gender. The main results refer to: changes in doctor-patient relations; data recording and usage; implications for rights and subjectivities; potential and challenges of health informatization in a context of precarious infrastructure; and regulatory challenges and structural inequalities.

Resumen Los procesos de digitalización del siglo XX extendieron el uso de Tecnologías de Información y Comunicación al campo de la salud. El artículo aborda la Historia Clínica Electrónica a partir de las críticas y debilidades señaladas por especialistas en Clínica Médica, Medicina General y/o de Familia del Área Metropolitana de Buenos Aires, Argentina. El diseño metodológico cualitativo incluyó 43 entrevistas realizadas entre junio de 2019 y marzo de 2020. El andamiaje teórico interpretativo articula tres campos: Comunicación y Salud; Biomedicina, Biopolítica y Tecnologías de Información y Comunicación; Subjetividad, Derechos y Género. Los principales resultados conciernen a cambios en las relaciones médico-paciente, registro y uso de datos, implicancias sobre los derechos y las subjetividades, potencialidades y problemáticas de la informatización en salud en un contexto de precaria infraestructura, desafíos en la regulación y desigualdades estructurales.

South Africa's controlled foreign company ("CFC") rules were enacted more than two decades ago before most of today's business models existed. These are anti-avoidance rules that ensure the South African taxation of profits diverted offshore by South African residents. In terms of the CFC rules, the profits of a non-resident company may also be subject to tax in South Africa at the hands of its South African resident shareholder if such non-resident company is considered to be a CFC. Advances in technology developments and the use of information communication and technology ("ICT") have given rise to what is referred to as the digital economy. The term refers to economic activities hinged on the use of ICT and the internet. Digitalisation has made it possible for a business to carry on economic activity without the need for a multitude of offices, staff, equipment, and other resources. As a result, new business models like Uber and Shien have emerged. This paper argues that the current South African CFC rules have not kept pace with these new business models and do not effectively regulate the new business models and the digital economy. This paper recommends that the CFC rules be updated to address the digital economy and new business models by amending the rules, incorporating the provisions of Electronic Communications and Transactions Act 25 of 2002 into the rules, using country-by-country reporting, and even considering implementing a regime alternative to CFC rules.

Contemporary technological developments have already progressed far beyond the electronic and digital transactions recognised under the Electronic Communications and Transactions Act 25 of 2002 (ECTA). Internationally, there are calls for the regulation not only of robots and artificial intelligence (AI) but also of sophisticated automated electronic systems and AI that now have the capability to make self-sustainable decisions and exhibit human characteristics (conceptually referred to as electronic persons). The growing legal debate is whether such systems should be afforded equal (or similar) legal status to human beings and thereby have rights and be responsible for duties - that is, be afforded the mantle of legal personhood. Alternatively, should a different liability regime apply to these systems, their operators and creators? Europe has suggested both approaches. First, in 2016, the European Parliament's Committee on Legal Affairs included recommendations to the Commission on Civil Law Rules on Robotics that suggested that electronic persons should in the future be recognised as entities having legal status and legal personality. Secondly, in 2020, the European Parliament made recommendations to the Commission on a Civil Liability Regime for Artificial Intelligence, which proposed liability structures for these systems, their operators and creators. If legal recognition were afforded, as initially suggested in 2016, this would constitute something fundamentally different from juristic persons and would have a direct influence on the way contracts are concluded and their consequences. This article explores the concepts of legal status and personality from the perspective of recognised contractual parties (natural and juristic persons), as well as that of a conceptual electronic person, which may manifest itself as either a passive electronic person (more akin to a useful tool and currently recognised under ECTA) or as a sophisticated electronic person (more akin to human-like technology). In doing so, the article explores possible liability structures that could apply to electronic persons in the South African legal framework and concludes that there is a need to update ECTA (and other legislative instruments) so as to recognise and regulate sophisticated automated systems and electronic persons. A failure to do so may mean South Africa is left behind in the wake of technological developments, and may hamper future contractual engagements.

BACKGROUND: Initiating newly diagnosed people living with human immunodeficiency virus (HIV) onto antiretroviral treatment (ART) and retaining patients on treatment are vital to South Africa's ART programme. In 2020, coronavirus disease 2019 (COVID-19) and its accompanying containment (lockdown) measures presented unprecedented challenges to achieving these objectives. AIM: This study describes the impact of COVID-19 and related restrictions on district-level numbers of newly diagnosed people living with HIV and defaulting ART patients. SETTING: Buffalo City Metropolitan Municipality (BCMM) in the Eastern Cape of South Africa. METHODS: Mixed-methods approach: Monthly aggregated electronic patient data (newly initiated and restarted on ART) from 113 public healthcare (PHC) facilities were analysed (December 2019 to November 2020) across varying levels of COVID-19 lockdown regulation periods; telephonic in-depth interviews at 10 rural BCMM PHC facilities were conducted with facility staff, community health workers (CHWs) and intervention personnel. RESULTS: The number of newly initiated ART patients decreased dramatically compared with pre-COVID-19 levels. The overall number of restarted ART patients increased in response to fears of co-infection with COVID-19. Facility-level communications and community outreach promoting HIV testing and treatment were disrupted. Novel approaches to providing services to ART patients were developed. CONCLUSION: Programmes for identifying undiagnosed people living with HIV and services aimed at retaining ART patients in care were profoundly impacted by COVID-19. The value of CHWs was highlighted, as were communication innovations. CONTRIBUTION: This study describes the impact of COVID-19 and related regulations on HIV testing, ART initiation and adherence to treatment in a District of the Eastern Cape of South Africa.

E-commerce and e-marketing has grown significantly over the past few years. More businesses are moving away from original forms of marketing tools such as newspapers, magazines, billboards and televisions and instead prefer online platforms such as social media. The article focuses on false, misleading and deceptive online marketing representations. It examines the legislative framework that seeks to protect online consumers in South Africa in terms of the Electronic Communications and Transactions Act 25 of 2002 (ECTA), the Consumer Protection Act 68 of 2008 (CPA) as well as the Social Media Code¹ of the Advertising Regulatory Board (ARB). It is recommended that although a consolidated statute that makes provision for both offline and online consumers would be ideal, the current provisions in ECTA could also be reviewed to ensure that they are in line with the new developments in marketing trends such as influencer marketing. The Social Code of the ARB is also important to complement ECTA and the CPA, as well as to promote the overall protection of consumers in South Africa.

Resumen Contexto: Las líneas de transmisión son estructuras construidas de material uniforme, dispuestas como un arreglo de pares de conductores o semiconductores, que guían las ondas electromagnéticas que transportan la energía de radiofrecuencia entre un dispositivo emisor y otro receptor. Su importancia en las comunicaciones radica en el conocimiento de sus parámetros fundamentales, para lo cual se requiere de equipos de medida especializados e instrumentos de laboratorio que proporcionen información para tomar decisiones de importancia en el acople de tecnologías en los sistemas de transmisión de datos. Objetivo: Explicar el funcionamiento de un sistema de medición de parámetros de líneas de transmisión como propuesta de bajo costo y automatizada para su caracterización, implementado mediante sistemas embebidos. Metodología: Para ello, se creó e implementó una arquitectura de hardware y software, con el uso de entradas análogas para medir tanto la atenuación e interrupciones digitales y temporizadas, como el retardo entre las ondas incidente y transmitida. Con estos datos se calculó la impedancia característica, constante de atenuación, constante de fase, velocidad de propagación, resistencia, conductancia, capacitancia e inductancia, mediante ecuaciones experimentales. Se realizaron cuatro experimentos utilizando 305 metros de cable coaxial; se comprobaron los datos obtenidos con los teóricos del fabricante, los cuales se validaron con medidas de equipos de instrumentación electrónica especializados, como el generador de funciones y el osciloscopio digital, con el objetivo de conocer el error de la herramienta diseñada frente a instrumentos avanzados. Resultados: Se construyó un dispositivo que calcula los parámetros básicos de una línea de transmisión con un error entre 3 % y 9 % en las mediciones. Conclusiones: La herramienta desarrollada entrega resultados cercanos a los valores teóricos y, al compararse con los instrumentos (osciloscopio digital y generador de funciones), mide de forma exacta la impedancia característica; presenta un error porcentual del 3,7 % cuando mide la constante de fase; y registra un error porcentual menor del 9 % cuando calcula constante de atenuación, retardo, velocidad de propagación, resistencia, conductancia, capacitancia e inductancia. Esto determina que el error máximo de las mediciones es 8,98 %, y así se demuestra que el dispositivo desarrollado es adecuado para la medición de los parámetros de las líneas de transmisión. Financiamiento: Universidad de Pamplona.

ABSTRACT Context: Transmission lines are structures constructed of uniform material arranged as an array of conductor or semiconductor pairs to guide electromagnetic waves carrying radio frequency energy between a transmitting device and a receiving device. Its importance in communications lies in the knowledge of its fundamental parameters, which requires specialised measurement equipment and laboratory instruments to make important decisions on the coupling of technologies in data transmission systems. Methodology: To do so, a hardware and software architecture is created and implemented using analogue inputs to measure attenuation and digital and timed interruptions to measure the delay between the incident and transmitted waves, whose data are used to calculate characteristic impedance, attenuation constant, phase constant, propagation speed, resistance, conductance, capacitance and inductance, by means of experimental equations. Four experiments are carried out using 305 meters of coaxial cable, checking the data obtained with the manufacturer's theoretical data and validating with measurements of specialised specialized electronic instrumentation equipment, such as the function generator and the digital oscilloscope, with the aim of finding out the error of the proposed tool designed compared to advanced instruments. Results: As a result, a device is built that calculates the basic parameters of a transmission line with an error between 3 % and 9 % in the measurements. Conclusions: The developed tool delivers results close to the theoretical values and when compared with electronic measurement instruments (digital oscilloscope and function generator), it measures the characteristic impedance accurately; it presents a percentage error of 3.7 % when measuring the phase constant; and finally, it presents a percentage error of less than 9 % when measuring the attenuation constant, delay, propagation speed, resistance, conductance, capacitance and inductance. This determines that the maximum error of the measurements is 8.98 %, demonstrating that the proposed device developed is suitable for measuring the parameters of transmission lines. Financing: University of Pamplona.

Abstract In this article, we study the generalized full nonlinearity perturbed complex Fokas-Lenells model (GFLM) which is a general dynamical representation of modern electronic communications “Internet blogs, Facebook communication and Twitter comments”. The modified simple equation method (MSEM) has been applied effectively to generate closed form solutions. On the other hand, the Riccati-Bernoulli Sub-ODE method (RPSODM) which reduces the steps of calculation has been applied perfectly to achieve accurate solution to this equation. We established the solutions achieved by these different methods in same vein and parallel.