Strictification and non-strictification of monoidal categories

It is a classical result that any monoidal category is monoidally equivalent to a strict one, called its strictification. In this paper, we prove that any monoidal category is also monoidally equivalent to a non-strict monoidal category, called its non-strictification. Furthermore, we show that these two constructions give the free (non-)strict monoidal category generated by a monoidal category. Moreover, we prove in detail that these two constructions are part of a pair of free-forgetful 2-adjunctions.Comment: 23 pages. Comments are welcom

STS in Engineering Education: Contributions From the Engineering, Technology and Society Network

Based on the teaching experience of the Engineering, Technology and Society Network, this paper analyzes the contributions made by STS studies to engineering education. This network offers educational perspectives for engineering students in their first semesters of higher education and has added recently a graduate education approach. This article describes how STS scholarship contributed a comprehensive view of technology, interdisciplinarity and development of critical thinking. Finally, it reviews STS education through active teaching and design in context, and describes the emergence of a graduate certificate program under an engineering, technology and society approach. This program combines engineering, social participation, technological assessment and STS thinking

Educación y ciudadanía: Un estudio de caso en la Universidad Militar Nueva Granada

El proyecto de investigación se inscribe en la problemática de la educación moral y política de los ciudadanos y las condiciones propias para la convivencia en el contexto de la globalización, temáticas que forman parte de la preocupación fundamental de la línea de investigación sobre Educación y Sociedad de la Maestría en Educación de la Universidad de la Universidad Militar Nueva Granada UMNG

Impact of Physical/Chemical Properties of Volcanic Ash-Derived Soils on Mechanisms Involved during Sorption of Ionisable and Non-Ionisable Herbicides

Volcanic ash-derived soils (VADSs) are of great importance in the agricultural economy of several emerging and developing countries. The surface-charge amphoteric characteristics will confer physical/chemical properties absolutely different to constant-charge soils. This surface reactivity will confer to them a particular behaviour in relation to the herbicide sorption, representing an environmental substrate that may become polluted over time due to intensive agronomic uses. Sorption is a key parameter to evaluate the fate and behaviour of herbicides in volcanic soils. Sorption type and kinetic sorption models are also necessary in order to develop and validate QSAR models to predict pesticide sorption on volcanic soils to prevent potential contamination of water resources. The use of solute sorption mechanism models and QSAR models for pesticide sorption in soils has contributed to a better understanding of the behaviour of pesticides on volcanic soils. This chapter is divided into five sections: Physical/chemical properties of volcanic ash-derived soils; Ionisable and non-ionisable herbicides’ fate and behaviour in soil; Kinetic sorption: mechanisms involved during sorption of ionisable and non-ionisable herbicides on VADS; Sorption of ionisable and non-ionisable herbicides on VADS; and Physical/chemical properties in QSAR models: a mechanistic interpretation