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Results 41 - 60 of 119.
Similarity in axis formation of sea anemones and sea urchins provides insight into axis formation in prehistoric animals Body axes are molecular coordinate systems along which regulatory genes are activated. These genes then activate the development of anatomical structures in correct locations in the embryo.
By Christoph Pelzl The influence of solar events on satellite-based applications such as orbit determination, telecommunications or navigation is being investigated by two research projects with the participation of TU Graz. Solar storms and similar events can cause sustainable damages to electronic systems on Earth, as well as on satellites.
The animals' sound production does not only come from the trunk Communication is crucial for elephants that live in complex multi-tiered social systems. Apart from their iconic trumpets uttered through the trunk, Asian elephants also produce species-specific squeaks by buzzing their lips. This demonstrates once again the elephant's flexibility in sound production.
Properties of materials are often defined by imperfections in their atomic structure, especially when the material itself is just one atom thick, such as graphene. Researchers at the University of Vienna have now developed a method for controlled creation of such imperfections into graphene at length scales approaching the macroscopic world.
By Birgit Baustädter It makes natural processes for industry more environmentally friendly or even possible at all, thus improving medical and everyday applications. A glimpse into the enzyme-rich world of biotechnology at TU Graz. "A theory says that the sedentarization of humans is related to beer brewing," biotechnologist Birgit Wiltschi from TU Graz's Institute of Molecular Biotechnology jokingly tells us.
By Birgit Baustädter Aortic dissection is a life-threatening tear in the aortic wall. At present, little is known about the causes. Researchers at TU Graz have now developed algorithms and models designed to support early-stage diagnosis and treatment. at the end of the message. In most cases, aortic dissection is the result of a tear in the inner layer of the aortic wall, the intima.
The phenomenon of quantum nonlocality defies our everyday intuition. It shows the strong correlations between several quantum particles some of which change their state instantaneously when the others are measured, regardless of the distance between them. While this phenomenon has been confirmed for slow moving particles, it has been debated whether nonlocality is preserved when particles move very fast at velocities close to the speed of light, and even more so when those velocities are quantum mechanically indefinite.
Specialised bacteria in the oceans seafloor consume and recycle nucleic acids from dead biomass While best known as the code for genetic information, DNA is also a nutrient for specialised microbes. An international team of researchers led by Kenneth Wasmund and Alexander Loy from the University of Vienna has discovered several bacteria in sediment samples from the Atlantic Ocean that use DNA as a food source.
By Christoph Pelzl Insulator strings connect the live conductor to overhead-line towers. Researchers at TU Graz simulated for the first time when and under what conditions different loads act on these strings. Overhead lines will thus be made even safer. Another can be found at the end of the text Though small and inconspicuous, they literally play a supporting role in the operational safety of high-voltage lines: insulator strings.
Biochemists discover highly selective phage activation based on signal molecule Bacteriophages are still a relatively unknown component of the human microbiome. However, they can play a powerful role in the life cycles of bacteria. Biochemist Thomas Böttcher from the University of Vienna and PhD candidate Magdalena Jancheva were able to show for the first time how Pseudomonas bacteria use a self-produced signal molecule to selectively manipulate phages in a competing bacterial strain to defeat their enemy.
Meiosis is a specialized cell division process required to generate gametes, the reproductive cells of an organism. During meiosis, paternal and maternal chromosomes duplicate, pair, and exchange parts of their DNA in a process called meiotic recombination. In order to mediate this exchange of genetic material, cells introduce double strand breaks (DSBs) into their chromosomal DNA.
While DNA is often idealised as the "molecule of life", it is also a highly sophisticated polymer that can be used for next-generation materials. Beyond the fact that it can store information, further fascinating aspects of DNA are its geometric and topological properties, such as knotting and super-coiling.
By Susanne Eigner Researchers from TU Graz in Austria and the Universities of Cambridge and Surrey succeeded to track down the first step in ice formation at a surface, revealing that additional energy is needed for water before ice can start to form. Picture material for download at the end of the message Water freezes and turns to ice when brought in contact with a cold surface - a well-known fact.
Changing Values. the Rise in Conservatism in the Corona Crisis
How do people's values and attitudes change over the course of a pandemic? Salzburg sociologists have played a major role in a worldwide longitudinal study on this matter. A year on, findings depict an increase of conservatism in Austria. The Values in Crisis (VIC) survey, carried out internationally, consists of 21 portraits to assess basic values, as well as some 300 other questions on political and social attitudes.
How do people's values and attitudes change over the course of a pandemic? Salzburg sociologists have played a major role in a worldwide longitudinal study on this matter. A year on, findings depict an increase of conservatism in Austria. The Values in Crisis (VIC) survey, carried out internationally, consists of 21 portraits to assess basic values, as well as some 300 other questions on political and social attitudes.
In an international cooperation with partners from industry and research, physicists from the University of Vienna, together with Thorlabs, the National Institute of Standards and Technology (NIST), and the University of Kansas, have now succeeded for the first time in demonstrating high-performance laser mirrors in the sensing-relevant mid-infrared wavelength range that absorb less than ten out of a million photons.
Quantum mechanics is famous for its indeterminism, but we can usually use probabilities to quantify our uncertainty about future observations. However, a team of researchers at the University of Vienna, the IQOQI Vienna (Austrian Academy of Sciences) and the Perimeter Institute for Theoretical physics have recently shown that in certain extreme quantum scenarios it is not possible to make such probabilistic predictions, provided that certain key assumptions of quantum mechanics hold true.
By Susanne Eigner "We have a problem and nobody knows how big it is," says TU Graz researcher Peter Fischer. But one thing is certain: brakes cause more particulate matter (PM) emissions than internal combustion engines via their exhaust gases. Nevertheless, there is a shortage of basic knowledge and legal regulations.
Magnonic devices have the potential to revolutionize the electronics industry. Qi Wang, Andrii Chumak from University of Vienna and Philipp Pirro from TU Kaiserslautern have largely accelerated the design of more versatile magnonic devices via a feedback-based computational algorithm. Their "inverse-design" of magnonic devices has now been published.
How do simple creatures manage to move to a specific place? Artificial intelligence and a physical model from TU Wien can now explain this. How is it possible to move in the desired direction without a brain or nervous system? Single-celled organisms apparently manage this feat without any problems: for example, they can swim towards food with the help of small flagellar tails.
By Christoph Pelzl Researchers at TU Graz develop green alternatives to fossil raw materials. Bio-based materials are expected to reduce pollution and drive the shift to a more sustainable economy. As a renewable resource, wood offers great potential in the fight against the climate crisis. First, it sequesters large amounts of carbon (1 ton per cubic meter!).
