We report the detection of tryptophan at sub-ppb levels for a fluorometer based on Fresnel lenses and low-cost electronics. These fluorometers can be used to detect fecal contamination in drinking water, indicated by tryptophan-like fluorescence.

This is the first of a series of four articles on psychological foundations from an applied psychological perspective. To begin with, the psychology of give and take, which is contradictory in its application, like many basic psychological mechanisms: sometimes emphasized, sometimes denied. In this first …

Artists and other cultural workers have tried to create stable, long-term collective income systems for themselves forever. In 2004, an American tech entrepreneur launched one of the most ambitious redistribution schemes up to date, the Artist Pension Trust (APT). The idea was to give artists not just …

As part of the Cybersecurity Noord-Nederland project, the University of Groningen hosted a series of mini-lectures on cybersecurity. The lectures were given by experts in the field of cybersecurity. Each of the speakers has discussed cybersecurity threats, vulnerabilities as well as remedies from different …

This is the last of a series of 3 columns on uncertainty. A response to uncertainty can be radicalization, It is argued that confirmation bias plays a role in this initial “radicalization”: the tendency to prefer information that confirms one's belief as “facts” to contradictory information (“fake news”). …

This is the last of a series of 3 columns on uncertainty. A response to uncertainty can be radicalization, It is argued that confirmation bias plays a role in this initial “radicalization”: the tendency to prefer information that confirms one's belief as “facts” to contradictory information (“fake news”). …

Some of the most striking accounts of the inventive power of imagination come from former prisoners who have spent time in solitary confinement. In these testimonies, they relate how their imaginative capacity enabled them to keep their sanity, even in the most arduous circumstances. Somehow they managed …

Adverse Outcome Pathways (AOPs) are conceptual frameworks that tie an initial perturbation (molecular initiat- ing event) to a phenotypic toxicological manifestation (adverse outcome), through a series of steps (key events). They provide therefore a standardized way to map and organize toxicological …

Completeness of data is vital for the decision making and forecasting on Building Management Systems (BMS) as missing data can result in biased decision making down the line. This study creates a guideline for imputing the gaps in BMS datasets by comparing four methods: K Nearest Neighbour algorithm …

Relatief kleine, gespecialiseerde bedrijven in de maakindustrie hebben behoefte aan flexibele assemblageprocessen en productielogistiek. Digitalisering biedt veel mogelijkheden om productieprocessen efficiënter en duurzamer te maken, innovatieve producten te fabriceren en over te schakelen op andere …