Switzerland

2021, Mathematics, Switzerland / 20.07.2021

Most nations and their healthcare systems have been overwhelmed by the COVID-19 pandemic. Mass testing is central to rapid tracing and breaking the chain of community transmission. However, corona testing can be prohibitively expensive, especially for poorer nations. We develop and present testing protocols based on the group testing technique, in which several samples are pooled and evaluated as a...

2021, Biology, Switzerland / 20.07.2021

In recent years, the occurrence of HABs - harmful algae blooms - in freshwater systems have become more frequent, as water temperatures are rising due to global warming. These blooms are formed by fast reproducing algae or cyanobacteria and can have serious consequences for aquatic organisms, as some bloom forming species produce toxins that inhibit the growth of other aquatic...

2021, Engineering, Switzerland / 20.07.2021

When someone gets buried in an avalanche, the likelihood of survival drastically decreases with time. This project was created to reduce the time until the victim is rescued. The idea is to relocate the search from the ground, performed by humans, into the air by an autonomous drone. Such a drone should be tiny and portable, as mountaineers would always...

2020, Social Sciences, Switzerland / 19.07.2021

This paper proposes the comparison of two works of fiction, Homer’s Odyssey and the BBC’s Doctor Who, based on similarities in creation, structure, and content. A complex understanding of both works and their cultural significance is gained by methods of close readings and aspects of media archeology. The second oldest work of western fiction and the ongoing British science fiction...

2020, Physics, Switzerland / 19.07.2021

We are used to bubbles rising in liquids, however, when a column of liquid is oscillated vertically, it is not always the case. Experiments have been conducted to determine the critical conditions under which such a behavior occurs. In a second part of this paper, it is shown, that the experimental results are in good agreement with an equation of...

2020, Engineering, Switzerland / 19.07.2021

The French military radar GRAVES emits electromagnetic waves consistently at a frequency of 143.05MHz. These waves propagate in the air and are reflected by electrically conductive objects. If the object is moving, the frequency of the reflected wave will change. This effect is known as the Doppler shift. The reflected waves were received by an antenna positioned on the roof...