Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Psychological factors play a crucial role in the development of oral competence in English as a foreign language. This research examines the elements that affect the development of oral skills in english major students at the Technical University of Cotopaxi (UTC). Using a mixed methods approach (qualitative and quantitative), a questionnaire was administered to 54 first-semester students and semi-structured interviews were conducted with three professors. The results reveal that fear of criticism is the most significant emotional barrier, followed by dependence on spanish when expressing oneself. The teacher's role emerges as a determining factor, especially in creating positive learning environments. Interviews with teachers confirm that anxiety and lack of confidence are major obstacles to oral participation. It is concluded that a holistic approach integrating emotional and pedagogical aspects is essential to improve oral competence in English, suggesting the implementation of specific strategies for anxiety management and the development of teacher training programs focused on psychological aspects of learning.

This research analyzes the interrelationship between disruptive education and sustainability, arguing that educational innovations can catalyze the development of more sustainable societies (Johnson, et al., 2012). Conceptual foundations connecting disruptive methodologies with a systemic understanding of socio-environmental challenges are explored (Luna and Arámburo, 2013). The study highlights how emerging technologies transform learning experiences while potentially reducing education's environmental footprint, though it warns about persistent digital divides. Active methodologies and sustainable educational spaces emerge as transformative elements that facilitate the development of critical competencies to address sustainability challenges. The research demonstrates the importance of teacher professional development and flexible educational policies that promote innovation ecosystems (Brown, 2014). Analysis of the Ecuadorian context reveals both progress and persistent inequalities in technological access and environmental education. The conclusion suggests that disruptive education represents not only an opportunity to improve learning quality but an ethical imperative to form citizens committed to sustainable futures.

This study examines health disparities from the perspective of workers in the epidemiological management of dengue. It is based on the identification of structural and systemic barriers that perpetuate inequities. The objective was to understand their experiences to develop more inclusive and sustainable strategies. Methodologically, an integrative theoretical review was conducted under PRISMA principles, employing a mixed approach (qualitative-quantitative) with biphasic evaluation through complementary frameworks: Cochrane Handbook for experimental studies and Newcastle-Ottawa Scale for observational studies. The results identified three fundamental dimensions: conceptual-operational gap (disconnection between theoretical knowledge and practical application), structural-functional gap (limitations in infrastructure and resources), and organizational-systematic gap (deficiencies in inter-institutional coordination). It is concluded that these disparities reflect inequalities that affect both the dengue response and the well-being of workers and communities, evidencing the need for inclusive policies that combine intersectoral efforts, community participation, and health system strengthening.

This article analyzes undergraduate students' perception of pedagogical pair contributions during their pre-professional practice. It is based on the need to train qualified teachers for diverse educational contexts. Through a qualitative case study in an Ecuadorian higher education institution, data was collected from fourth and ninth-cycle students and graduates, using semi-structured interviews and focus groups. Results show that the pedagogical pair promotes the development of fundamental skills such as cooperation, fluid communication, organization, and professionalism. Essential qualities for effective teamwork were identified: responsibility, organization, punctuality, trust, communication, and commitment, which operate interdependently. Participants positively valued this training modality for their subsequent professional performance. The study concludes that training in pedagogical pairs contributes to generating teachers prepared to promote sustainable development through a collaborative work culture, equipped to face the challenges of heterogeneous educational communities.

This study analyzes the impact of social media on the teaching-learning process of dentistry students at Universidad Católica de Cuenca (UCACUE). Using a mixed (qualitative-quantitative) descriptive approach, a survey was applied to 93 eighth-semester students during the 2022-2023 academic period. Results revealed that 99% use social media and 91% incorporate these platforms into their educational process. YouTube (83,10%) stands out as the preferred platform for theoretical-practical learning, while WhatsApp (76,60%) leads in clinical feedback. 95% consider these platforms useful for theoretical components and creating educational videos. 78% perceive benefits in both theoretical and practical subjects. Time dedicated to social media (65% between 3-5 hours daily) raises questions about possible effects on academic performance. The study concludes that social media represents complementary pedagogical tools with high potential to enrich dental education, although institutional regulations are required for their systematic integration into all courses and the development of critical digital competencies that allow students to discriminate, validate, and effectively apply available information.

Transplant activity requires significant resources for effective operation, however, it faces important budgetary challenges that limit its development. This research aims to analyze the necessary budgetary reform to develop transplant activity. A qualitative, documentary, and descriptive study was conducted through a systematic review of 19 scientific articles published between 2014-2024, selected using the PRISMA checklist. Results show that health budget allocation is insufficient to cover operational costs, directly affecting transplant development. The analysis revealed that 53% of studies focus on budgetary reform and 26% on financial management, highlighting the need to transform current financing mechanisms. It is concluded that legislators must implement comprehensive budgetary reform that optimizes resource allocation, strengthens financial management, and ensures transplant program sustainability, thus promoting greater equity in access to these specialized health services.

The document shows an analysis carried out through Arti-ficial Intelligence models to make comparisons in the pre-dictions of investment portfolios in Mexico and the Unit-ed States. Given the interest of investors in reducing the risk of losses in different periods of time, ARIMA models were used for the prediction of time series in comparison with the multilayer perceptron neural network and particle swarm in the optimal portfolio selection. Markowitz’s the-ory (1952) is also applied to identify the type of portfolio on the efficient frontier. The main objective of this research is to show that current technologies can solve uncertainty problems and diversify risk. The study shows that artificial intelligence can help design better investment strategies in a given time. The study is limited by the fact that only the main companies from the aforementioned countries were taken, but the model can be replicated with larger samples even in other stock exchanges.

The economic benefits to which a worker is entitled through social security are diminished when an employer registers them with the Mexican Social Security Institute (IMSS by its initials in spanish) under a salary lower than their actual wage. This practice, in addition to being illegal and potentially leading to financial consequences for the employer, represents an artificial cost-saving measure. This exploratory study examines 344 workers whose employers have registered them with salaries below their actual earnings. The savings generated from this practice are quantified and compared with the excess Income Tax paid due to the inability to deduct the actual wages. The main finding of this investigation is that, in all analyzed cases, the cost-benefit ratio was less than 1. The research hypothesis—“the savings on social security contributions from registering workers with wages lower than their actual earnings are less than the excess income tax generated for the employer by not deducting the full wages of workers”

In this document presents an analysis of the impact that the manufacturing industry has on the employment generation and its influence on the economic development of the municipality of El Salto, Jalisco, which in the recent years has had great industrial growth. To conduct the analysis, scatter graphs with lines were used to observe the change in employment in a period from 2017 to 2022, and the change in public investment and expenditures in a period from 2017 to 2021. Additionally, an information search was conducted to understand the type of development that has taken place in the region. The results obtained lead us to conclude that employment generation by the manufacturing industry is indeed related to the economic development of El Salto, Jalisco; we see that year after year the amount of expenditures allocated to the municipality by the State Government has increase in direct relation with the increase in tax revenues, these expenditures are used by the municipality to cover the different services demanded by the population and to construct different infrastructure projects.

This study examined the relationship between inflation, inflation expectations, and the Mexican Stock Exchange Index (IPC BMV) from 2000 to 2019. Using multiple linear regression models with monthly data, the results revealed a positive correlation between actual inflation and the IPC BMV and a negative relationship with expected inflation. High inflation expectations, represented by a dummy variable, indicated favorable adjustments. Despite the models' low R², the findings remain valid, emphasizing that inflation and its expectations are only part of the factors influencing the IPC BMV. The analysis highlights the importance of calculating inflation expectations for the Bank of Mexico and offers valuable insights for policymakers and investors in emerging markets.