Uranium is not always the same: depending on whether this chemical element is released by the civil nuclear industry or as fallout from nuclear weapon tests, the ratio of the two anthropogenic, i.e. man-made, uranium isotopes 233U and 236U varies.
Today, most quantum experiments are carried out with the help of light, including those in nanomechanics, where tiny objects are cooled with electromagnetic waves to such an extent that they reveal quantum properties.
An ultra-fast image sensor with a built-in neural network has been developed at TU Wien (Vienna). It can be trained to recognize certain objects.
A world premiere in Austria: The new bridge construction technology which was developed at TU Wien has now been successfully applied by ASFINAG during the construction of the Fürstenfeld Motorway.
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An answer to a quantum-physical question provided by the algorithm Melvin has uncovered a hidden link between quantum experiments and the mathematical field of Graph Theory. Researchers from the Austrian Academy of Sciences and the University of Vienna found the deep connection between experimental quantum physics and this mathematical theory in the study of Melvin's unusual solutions, which lies beyond human intuition.
A remarkable discovery was made at TU Wien recently, when particles known as 'Weyl fermions' were discovered in materials with strong interaction between electrons. Just like light particles, they have no mass but nonetheless they move extremely slowly. There was great excitement back in 2015, when it was first possible to measure these 'Weyl fermions' - outlandish, massless particles that had been predicted almost 90 years earlier by German mathematician, physician and philosopher, Hermann Weyl.
A study carried out by an international team of researchers and published in the journal Physical Review X shows that ion-trap technologies available today are suitable for building large-scale quantum computers. The scientists introduce trapped-ion quantum error correction protocols that detect and correct processing errors.
A wildlife crossing over the upcoming Koralm railway is being built, using a new construction technique developed by TU Wien. Traditional support structures are replaced by an air cushion. The shell construction methods which are usually used to build bridges and domes generally rely on expensive support structures.
Sexualized representations, especially the emphasis of secondary sexual characteristics, can change the way we perceive an individual. An international team of researchers led by Giorgia Silani from the Faculty of Psychology at the University of Vienna has shown that empathic feelings and brain responses are reduced when we observe the emotions of sexualized women.
The first study to compare ancient and living female bones shows the routine manual labour of women during early agricultural eras was more gruelling than the physical demands of rowing in Cambridge University's famously competitive boat clubs. Researchers von der University of Cambridge und der Anthropologe Ron Pinhasi von der Universität Wien say the findings suggest a "hidden history" of women's work stretching across millennia.
The Computer Scientist Matteo Maffei (TU Wien) is awarded an ERC Consolidator Grant for the project "Browsec: Foundations and Tools for Client-Side Web Security" . He is working on a plugin that will make browsers safe - and is logically impossible to fool. We are hardly aware of the dangers we face when we are browsing the web.
Quantum devices allow us to accomplish computing and sensing tasks that go beyond the capabilities of their classical counterparts. However, protecting quantum information from being corrupted by errors is difficult. An international team of researchers from Innsbruck, Harvard, Copenhagen and Waterloo put forward a new method to protect quantum information stored in trapped ions.
Multidrug resistance of microbes poses a serious global threat to human health. Such resistant strains of Klebsiella pneumoniae significantly reduce therapeutic options for the treatment of Klebsiella-induced, potentially fatal pneumonia or sepsis.
The Goffin's cockatoo is not a specialised tool user in the wild but has shown the capacity to invent and use different types of tools in captivity. Now cognitive biologists from the University of Vienna and the University of Veterinary Medicine Vienna tested these parrots in a tool use task, requiring the birds to move objects in relation to a surface.
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories.
Quantum physicists in Oriol Romero-Isart's research group in Innsbruck show in two current publications that, despite Earnshaw's theorem, nanomagnets can be stably levitated in an external static magnetic field owing to quantum mechanical principles. The quantum angular momentum of electrons, which also causes magnetism, is accountable for this mechanism.
Transitions occurring in nanoscale systems, such as a chemical reaction or the folding of a protein, are strongly affected by friction and thermal noise. Almost 80 years ago, the Dutch physicist Hendrik Kramers predicted that such transitions occur most frequently at intermediate friction, an effect known as Kramers turnover.
Induction heating can completely change the energy budget of an exoplanet and even melt its interior. In a study published by Nature Astronomy an international team led by the Space Research Institute of the Austrian Academy of Sciences with participation of the University of Vienna explains how magma oceans can form under the surface of exoplanets as a result of induction heating.
Scientists around Tetyana Milojevic from the Faculty of Chemistry at the University of Vienna are in search of unique biosignatures, which are left on synthetic extraterrestrial minerals by microbial activity. The biochemist and astrobiologist investigates these signatures at her own miniaturized "Mars farm" where she can observe interactions between the archaeon Metallosphaera sedula and Mars-like rocks.
Women born by Caesarean section due to a fetopelvic disproportion (FDP) are more than twice as likely to develop FDP when giving birth than women born naturally. This is the conclusion of a study by a team of evolutionary biologists at the University of Vienna headed by Philipp Mitteroecker. Using a mathematical model, the team was able to explain the paradoxical phenomenon that natural selection did not lead to the reduction in the rates of obstructed labour.
Even though science is becoming increasingly competitive, scientists are still very willing to share their work with colleagues. This is especially true for male scientists among each other and less so for females among each other or between the sexes. These patterns of sharing among scientists were discovered by a team of Austrian, Dutch and German researchers led by Jorg Massen of the Department of Cognitive Biology at the University of Vienna, and the results of their study have been published in the scientific journal "Scientific Reports".
Researchers at the Universities of Vienna and Göttingen have succeeded in developing a method for predicting molecular infrared spectra based on artificial intelligence. These chemical "fingerprints" could only be simulated by common prediction techniques for small molecules in high quality. With the help of the new technology, which is based on neuronal networks similar to the human brain and is therefore capable of learning, the team led by Philipp Marquetand from the Faculty of Chemistry at the University of Vienna was able to carry out simulations that were previously not possible.
TU Wien is conducting research into high-precision 3D printing technology. Now, a new method is enabling researchers to look for suitable materials with greater precision than ever. How is it possible to build a model of St Stephen‘s Cathedral the size of a dust particle' Well, using TU Wien's modern 3D-printing technology, this is no longer a problem.
Pearl millet genome sequence provides a resource to improve agronomic traits in extreme environments An international consortium under the lead of the non-profit organization "International Crops Res