This graduation report describes a research project at the research group metabolomics of the Leiden center of Applied Biosciences (LCAB). The aim of this project was to develop a GC-MS method for the identification of red swamp crayfish pheromones (Procambarus clarkii). Once this method has been developed, …

Substantial and continuous shifts in skills demands urge us to rethink education, labour market and reintegration policies and practices. In this article, we argue for a more skills based approach to (re)integration. This skills based (re)integration practice is based more on up-to-date, complete and …

The setting is the intensive course Art and Sustainability Education that I teach annually as Professor in Art Education at the Estonian Academy of Arts. This time, in the autumn of 2018, I am with ten students and we have gathered for four days in Arbavere, a resort on the periphery of Lahemaa National …

The catalytic conversion of glycerol to aromatics (GTA, e.g., benzene, toluene, and xylenes, BTX) over a shaped H-ZSM-5/Al2O3 (60/40 wt%) catalyst was investigated in a continuous fixed-bed reactor to study the addition of the Al2O3 binder in the catalyst formulation on catalyst performance. The experiments …

This report gives a scientific overview of the present knowledge on insect rearing, use of residual streams as substrates, and safety aspects of insects used for food and feed. This overview will form the basis for experiments in the public-private partnership (PPP) project SAFE INSECTS (LWV20.102).

Purpose: To establish age-related, normal limits of monocular and binocular spatial vision under photopic and mesopic conditions. Methods: Photopic and mesopic visual acuity (VA) and contrast thresholds (CTs) were measured with both positive and negative contrast optotypes under binocular and monocular …

Animal burrows create discontinuities on the body of earthen levees that under certain circumstances can threaten their structural integrity through hydraulic alteration and surface erosion. Although it is a virtually established fact that discontinuities can undermine the structural integrity of levees, …

This dissertation presents research on customers’ perceptions of cleanliness in service environments. The research contributes to the gap in the literature on cleanliness examined from a customer perspective, and adds to the understanding of environmental cues that influence perceived cleanliness. Part …

Glycerol is an attractive bio-based platform chemical that can be converted to a variety of bio-based chemicals. We here report a catalytic co-conversion strategy where glycerol in combination with a second (bio-)feed (fatty acids, alcohols, alkanes) is used for the production of bio-based aromatics …

Metacognition comprises both the ability to be aware of one’s cognitive processes (metacognitive knowledge) and to regulate them (metacognitive control). Research in educational sciences has amassed a large body of evidence on the importance of metacognition in learning and academic achievement. More …