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A team of German and American researchers from Augsburg, Münster, Edmonton, West Lafayette and Munich have detected the rolling movement of a nano-acoustic wave predicted by the famous physicist and Nobel prize-winner Lord Rayleigh in 1885. In a study published in the journal "Science Advances", the researchers use a nanowire inside which electrons are forced onto circular paths by the spin of the acoustic wave.
Researchers investigate which material properties support vessel formation / Study published in the journal "Nature Communications" Using lab-created tissue to heal or replace damaged organs is one of the great visions for the future of medicine. Synthetic materials could be suitable as scaffolding for tissue because, unlike natural tissues, they remain stable in the organism long enough for the body to form new natural structures.
65,000 years ago Neanderthal from the Swabian Jura hunted horses and reindeer with hafted leaf-shaped stone points. A newly discovered leaf point from the UNESCO World Heritage site of Hohle Fels Cave documents the evolution of hunting. A team under the direction of Professor Nicholas Conard for the University of Tübingen and the Senckenberg Centre for Human Evolution and Palaeoenvironment in southern Germany recovered the artifact underlying a layer dating to 65,000 years ago, which represents a minimum age for the find.
Heidelberg chemists succeed in producing synthesis and complete characterisation for the first time Silicon, a semi-metal, bonds in its natural form with four other elements and its three-dimensional structure takes the form of a tetrahedron. For a long time, it seemed impossible to achieve the synthesis and characterisation of a two-dimensional equivalent - geometrically speaking, a square.
Göttingen researchers create new kind of environmentally friendly bioplastic with hydroplastic polymers Plastics offer many benefits to society and are widely used in our daily life: they are lightweight, cheap and adaptable. However, the production, processing and disposal of plastics are simply not sustainable, and pose a major global threat to the environment and human health.
Ten years of data from NASA's Solar Dynamics Observatory combined with numerical models reveal the deep low musical notes of the Sun (mps) A team of solar physicists led by Professor Laurent Gizon of the Max Planck Institute for Solar System Research (MPS) and the University of Göttingen in Germany has reported the discovery of global oscillations of the Sun with very long periods, comparable to the 27-day solar rotation period.
Why identical mutations cause different types of cancer Why do alterations of certain genes cause cancer only in specific organs of the human body? Scientists have now demonstrated that cells originating from different organs are differentially susceptible to activating mutations in cancer drivers: The same mutation in precursor cells of the pancreas or the bile duct leads to fundamental different outcomes.
Measurements of biomechanical properties inside living cells require minimally invasive methods. Optical tweezers are particularly attractive as a tool. It uses the momentum of light to trap and manipulate microor nanoscale particles. A team of researchers led by Cornelia Denz from the University of Münster has now developed a simplified method to perform the necessary calibration of the optical tweezers in the system under investigation.
Hollow nano-objects made of DNA could trap viruses and render them harmless To date, there are no effective antidotes against most virus infections. An interdisciplinary research team at the Technical University of Munich (TUM) has now developed a new approach: they engulf and neutralize viruses with nano-capsules tailored from genetic material using the DNA origami method.
Göttingen researchers investigate effect of non-human conversation partners in customer services More and more companies are using chatbots in customer services. Due to advances in artificial intelligence and natural language processing, chatbots are often indistinguishable from humans when it comes to communication.
Tracking future forest fires with AI As temperatures rise, the risk of devastating forest fires is increasing. Researchers at the Technical University of Munich (TUM) are using artificial intelligence to estimate the long-term impact that an increased number of forest fires will have on forest ecosystems.
Organoids help understand the complex interactions of cells and tissue In addition to chemical factors, mechanical influences play an important role in the natural growth of human organs such as kidneys, lungs and mammary glands - but also in the development of tumors. Now a research team at the Technical University of Munich (TUM) has investigated the process in detail using organoids, three-dimensional model systems of such organs which are produced in the laboratory.
Allowing plant residues to rot on the field is good for the climate Plants rotting in the soil are valuable for more than just compost. In fact, plant residues play a crucial role in keeping carbon in the soil, which is important for reducing the planet's CO2 emissions. This is the conclusion of a new study by researchers at the Technical University of Munich (TUM) and other institutions.
Climatic changes are increasingly giving rise to major fires on peatlands in the northern hemisphere, which release massive quantities of carbon dioxide. However, the biomass of the peatland is not entirely consumed by fire, some turns to charcoal in the absence of air. Now, Dr. Tianran Sun and Professor Lars Angenent from Environmental Biotechnology at the University of Tübingen in cooperation with colleagues at Cornell University in the USA have discovered that the carbonized biomass reduces production of the methane gases naturally occurring in the peat soil.
For the first time, a team of scientists clearly demonstrates the existence of lipofibroblasts in human luectron microscope In medical research, animal models are used to clarify the development of diseases and to develop suitable therapies. In order to be able to transfer the results to humans, however, it must be ensured that the cell types and molecular signalling pathways studied in detail actually occur in our bodies.
Zeitabhängige Berechnung eines Bose-Einstein-Kondensats
The term Bose-Einstein condensate describes a state of matter in which atoms or elementary particles combine into a single quantum mechanical object during extreme cooling. Science does not yet fully understand exactly how these macroscopic states - beyond the confines of traditional physics - develop from a thermal atomic cloud in just a few milliseconds and when statistical equilibrium is reached, according to Georg Wolschin.
The term Bose-Einstein condensate describes a state of matter in which atoms or elementary particles combine into a single quantum mechanical object during extreme cooling. Science does not yet fully understand exactly how these macroscopic states - beyond the confines of traditional physics - develop from a thermal atomic cloud in just a few milliseconds and when statistical equilibrium is reached, according to Georg Wolschin.
The Tübingen region has recently seen hailstorms that brought back memories of the devastating storm of 2013. At that time, billions of dollars in damage were caused, and the damage from the most recent storms is still being assessed. Despite all the trouble hailstones cause, they also possess a previously unknown inner beauty.
Discovery from Unicorn Cave in Lower Saxony sheds new light on ancestors' cognitive abilities Since the discovery of the first fossil remains in the 19 th century, the image of the Neanderthal has been one of a primitive hominin. People have known for a long time that Neanderthals were able to effectively fashion tools and weapons.
Modernization makes older adults feel rushed, too
New international study on time perception among older adults Rapid societal changes can leave us feeling more rushed and pressured for time - and older adults are no exception, new research finds, led by Weill Cornell Medicine with participation of researchers of Humboldt University.
New international study on time perception among older adults Rapid societal changes can leave us feeling more rushed and pressured for time - and older adults are no exception, new research finds, led by Weill Cornell Medicine with participation of researchers of Humboldt University.
Göttingen researchers investigate special properties of protein structures The cells that make up our bodies are constantly exposed to a wide variety of mechanical stresses. For example, the heart and lungs have to withstand lifelong expansion and contraction, our skin has to be as resistant to tearing as possible whilst retaining its elasticity, and immune cells are very squashy so that they can move through the body.
News from the Lab is a selection of science news that are significant or interesting for a broad readership.
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