Eco-innovation is an important factor not only for the competitiveness of companies in the face of the greening of markets but also as one of the primary means on the road to sustainable development. However, there is a remarkable conceptual diversity in the subject given the theoretical perspective from which eco-innovation is analyzed. Therefore, this research aims to establish an integrating concept of eco-innovation, based on elements of acceptance in the scientific literature, for its application in SMEs. To this end, 40 articles from recognized scientific databases such as ScienceDirect, Scopus and Web of Science (WoS) were reviewed, resulting in a concept that covers the economic approach, definition, dimensions and drivers of eco-innovation. It was found that the implementation of eco-innovation is dependent on the degree of formalization in each element according to the institutional context in question.

Cementitious materials are indispensable in the construction industry and in urban development worldwide because cement pastes, mortars, and concrete provide mechanical strength, high durability, and excellent stability to various structures that are used in a lot of civil works. Owing to the impact and relevance of these materials, it is indispensable to frequently seek ways to improve their properties and characteristics. In recent years, the development of nanomaterials such as nanoparticles (NPs) and nanofibers (NFs) has allowed cementitious materials to improve their mechanical, thermal, chemical, and durability properties, among others. This can be associated with the fact that nanomaterials allow for improved cement hydration by retaining water in the mix, helping to define a more uniform microstructure and, therefore, significantly reducing porosity, which prevents contamination such as from the entry of external agents into the structure. In addition to providing an overview of the effects of using nanomaterials on enhancing the properties of cementitious materials, this review includes the most widely used nanomaterial synthesis methods in recent years and the contribution of these nanomaterials to sustainable and environmentally friendly construction.

La crisis ambiental que sobrelleva nuestro planeta, ocasionada principalmente por el estilo de vida ligado al consumismo, ha generado gran preocupación en los distintos ámbitos, sobre todo en el educativo, tal es el caso de las Instituciones de Educación Superior (IES), que día a día llevan a cabo estrategias para formar personas comprometidas y responsables que no sólo se consoliden académicamente, sino también en lo social, y contribuyan al progreso de las condiciones del planeta. Es por ello, que el objetivo de esta investigación es identificar los factores que motivan a estudiantes a involucrarse en actividades que contribuyan al logro de una cultura ambiental aportando al desarrollo sostenible desde su formación profesional. Bajo un enfoque cuantitativo, de naturaleza exploratoria-descriptiva, se aplicó un cuestionario con escala de Likert a una muestra de 337 estudiantes de la Universidad Autónoma de Occidente Unidad, Regional Guasave. Los hallazgos revelaron que los principales factores son los valores personales como la responsabilidad, el nivel de cultura y la conciencia ambiental; mismos que se reflejan no sólo en la participación en actividades de cuidado del medio ambiente, sino en adquisición de productos sostenibles, cambios en estilos de vida y por ende en la reducción de huella ecológica. Finalmente, se observa como un área de oportunidad, un mayor grado de involucramiento de las IES alineando sus actividades al desarrollo sostenible y capacitando a sus docentes en el mismo sentido.