In the current context of concern about the environmental impacts of human activity, the focus on sustainable development and environmental impact assessment (EIA) has gained prominence. The Brundtland Commission highlights the importance of meeting present needs without compromising future ones, leading to international treaties and public policies to address the environmental crisis. Moreover, the Latin American and Caribbean Initiative for Sustainable Development (ILAC) seeks to promote sustainable development in key areas in Latin America and the Caribbean. Among them, energy efficiency and destination are crucial for sustainable use of energy resources and emission reduction. The aim of this article is to examine the evolution of variables and countries regarding installed capacity to produce electricity, renewable primary energy supply share, and fossil-fuel subsidies through Dynamic biplots and multivariate analyses. Trends in the increase of renewable energy production capacity are shown. In contrast, the correlation between the share of fossil fuel subsidies and the share of renewable primary energy supply presents a weak inverse relationship. Therefore, although progress has been made toward using cleaner energies and the consumption and subsidization of fossil fuels have decreased, some countries still depend significantly on non-renewable sources. It is concluded that even when environmental information presents challenges, analyzing indicators and conceptual models contributes to understanding environmental dynamics and progress toward sustainable development in the region, especially through creating and implementing public policies.

This comprehensive study investigates key aspects of mathematics education in higher education institutions, focusing on curriculum effectiveness, teaching practices, and faculty challenges. The research delves into the perceptions of mathematics majors, examining demographic profiles, curriculum efficacy, instructional quality within teaching evaluation systems, and challenges faced by faculty in implementing innovative teaching methods. Demographic analysis reveals a diverse participant group, with a balanced representation across age groups, genders, and educational backgrounds. Notably, faculty members with varying teaching experiences contribute to a nuanced understanding of challenges within the mathematics major. Findings highlight strong consensus among mathematics majors on the effectiveness of the current curriculum, emphasizing its role in academic success and professional application. The study underscores the importance of curriculum redesign to align with industry demands and foster real-world problem-solving skills. Positive perceptions of teaching evaluation systems affirm their impact on instructional quality, learning outcomes, and overall teaching practices in mathematics courses. Challenges faced by faculty, particularly time constraints and resistance to change, signal the need for targeted support programs. The study proposes InnovateMath, a transformative program aiming to revitalize curriculum design, promote innovative teaching, and address faculty challenges. The program emphasizes collaboration, technology integration, and ongoing support networks to enhance mathematics education.

Under the perspective of the rapid development of information technology, the field of mechanical design and manufacturing has ushered in unprecedented changes. Traditional design methods and manufacturing processes gradually show limitations under the wave of digitalization and intelligence, such as low work efficiency, limited design accuracy, high production cost and other problems have become the bottleneck of the development of the industry. In order to solve these problems, this paper focuses on the integrated application of computer aided design (CAD), automatic manufacturing technology and intelligent monitoring system, aiming to improve the design accuracy, optimize the manufacturing process, reduce costs, so as to promote the development of mechanical design and manufacturing industry to a more efficient and accurate direction.

The changes of the new era have put forward new requirements for teachers’ professional ethics. Teacher moral construction work is a necessary guarantee for the cultivation and enhancement of professional ethics of teachers in colleges and universities, in order to build a high-quality teaching force needs to put the level of professional ethics and teachers’ ideological construction in the first place, and to take the party building work as a leader, to promote the improvement of the teachers’ professional ethical qualities.