Lung-on-a-chip Device

Scientific field Materials Country Poland Contestants Maciej Marcel Mańka Share this Post

Amber drug. A study of the antibacterial action of extracts of fossil and subfossil resins

By ages, amber was a prized commodity desired mainly for its beauty and used in jewellery. It was considered curiosity because of its electrostatic properties and was also believed to have medicinal properties against many ailments. Thus, the English encyclopaedist E. Chambers wrote that “In times of Plague, those who work in Amber at Koningsberg are said to be never …

Colouring of the plane, lines and circles

Tasks about colouring often occurs in mathematics, e.g. the four colour map theorem or the chromatic number of the plane. My problem begins with a case from Mathematical Olympiad: how many colours at most we can use to colour points of the plane in such a way that each line is at most two-coloured. The answer is three, but if …

Paris, 17 October 1961

Scientific field Social sciences Country Norway Contestants Idunn Maria Brosset Share this Post

Investigation of salinity impact on rate and amplitude of the seasonal water temperature changes in a fjord in Western Norway

This study in physics of fjords and lakes investigates the impact of salinity on density stratification. The hypothesis of a fjord being more stratified and warming/cooling faster than a freshwater lake is formulated. Data is gathered using a kayak, long temperature probe and two methods of water sample collection. Temperature and salinity data is collected throughout the year 2014 in …

Motivic Symbols and Classical Multiplicative Functions

The notion of a multiplicative function is one of the central building blocks of modern number theory, and were studied by Euler, Gauss and Ramanujan among others. Classical multiplicative functions work as machines giving key information about various properties of positive integers. For example, there is a function which outputs 1 if the input is a square number, and 0 …

Acetobacter spp. bacteria producing biopolymers simultaneously

The products of chemical industry (plastics, resin, etc.) are produced from non-renewable natural resources and therefore heavily pollute the environment. For this reason they should be superseded with biodegradable and biocompatible biopolymers having plastic-like properties such as cellulose and polyhydroxybutyrate (PHB). We have performed this study to reveal whether it is possible to construct bacteria synthesizing these two biopolymers simultaneously. …

Antimicrobial bacteriophage dressing in chronic wound treatment

Irreparable effects on health, even death cases, caused by chronic wounds, are due to the deficiency of antimicrobials against pathogenic biofilm producing bacteria, coupled with the sunset of the antibiotics era. We have developed a new, highly efficient method for producing the antimicrobial wound dressing. Our method easily allows to modify antimicrobial components of the dressing and ensures their gradual …