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Results 81 - 100 of 219.

Physics - Materials Science - 14.08.2019
Physicists Develop "Time Machine" for Materials Science
Physics experiments are often time-consuming and expensive. Sometimes scientists do not realize until the very end that they have been using the wrong calibration for measurements the whole time. What if there were a way to go back in time to the start of the experiment and re-examine the data? Researchers at Martin Luther University Halle-Wittenberg (MLU), Freie Universität Berlin, and the Technical University of Munich (TUM) hope to create a machine that would make that possible.

Psychology - 14.08.2019
Care less with helmet
Care less with helmet
Psychologist at the University of Jena discovers altered behaviour and brain activity among people who wear helmets The significance of some objects is so deeply entrenched in our psyche that we rely on them even when they are not actually helpful. This is the case with a bike helmet. Since our childhood, we learn that we are more protected in traffic when wearing a helmet on our head.

Physics - 13.08.2019
Fastest Camera
Fastest Camera
The world's fastest camera for imaging individual protons in the so-called soft X-ray range has begun operations. It was developed by an international consortium which includes physicists from Heidelberg University. The so-called DSSC detector is being used at the European XFEL research facility in Hamburg.

Environment - Materials Science - 12.08.2019
Mapping the Energetic Landscape of Solar Cells
Mapping the Energetic Landscape of Solar Cells
A new spectroscopic method now makes it possible to measure and visualise the energetic landscape inside solar cells based on organic materials. It was developed by a research team led by Yana Vaynzof, a physicist at Heidelberg University. This novel visualisation technique enables scientists to study the physical principles of organic photovoltaics with extreme precision and to better understand processes such as energetic losses.

Life Sciences - Environment - 09.08.2019
Evolutionary Dynamics
Evolutionary Dynamics
The genotype determines not only the appearance, development, and adaptive strategies of the given individual. It also carries far-reaching information on past changes and adaptations of the phenotype. Researchers from Heidelberg University and the Max Planck Institute for Plant Breeding Research in Cologne have investigated this evolutionary change process using model organisms from the Brassicaceae plant family, focusing on leaf shape.

Physics - 09.08.2019
Ultracold Quantum Particles Break Classical Symmetry
Many phenomena of the natural world evidence symmetries in their dynamic evolution which help researchers to better understand a system's inner mechanism. In quantum physics, however, these symmetries are not always achieved. In laboratory experiments with ultracold lithium atoms, researchers from the Center for Quantum Dynamics at Heidelberg University have proven for the first time the theoretically predicted deviation from classical symmetry.

Life Sciences - 26.07.2019
Biologists want new rules for plant breeding
One year ago, the Court of Justice of the European Union issued a ruling on genetic methods in plant breeding: on 25 July 2018, the judges ruled that plants bred using modern molecular biological methods (genome editing) fall into the category of genetically modified organisms. According to current EU legislation, these plants are to be strictly regulated - in contrast to plants that have been genetically modified using conventional methods, called mutagenesis.

Health - Environment - 25.07.2019
HIV Spreads Through Direct Cell-To-Cell Contact
HIV Spreads Through Direct Cell-To-Cell Contact
The spread of pathogens like the human immunodeficiency virus (HIV) is often studied in a test tube, i.e. in two-dimensional cell cultures, even though it hardly reflects the much more complex conditions in the human body. Using innovative cell culture systems, quantitative image analysis, and computer simulations, an interdisciplinary team of scientists from Heidelberg University has now explored how HIV spreads in three-dimensional tissue-like environments.

Life Sciences - Environment - 25.07.2019
Poisonous grasses: new study provides reassurance
Poisonous grasses: new study provides reassurance
07/25/2019 Stories of mass poisoning incidents of livestock due to toxic grasses made headlines especially overseas. Animal ecologists from Würzburg have studied whether this hazard is also lurking on German pastures. "Dangerous Pastures: Deadly Grass Puts Horses at Risk" - Such dire warnings on the websites of horse owners and horse lovers may cause people to see their environment in a whole new light.

Health - Life Sciences - 24.07.2019
New marker for atrial damage discovered
New marker for atrial damage discovered
Atrial fibrillation leads to a persistent irregular - often accelerated - heartbeat. While the condition is not life-threatening, if left untreated it can lead to serious complications such as stroke or heart failure. It is caused by areas of the heart that hinder the normal conduction of electrical impulses so that the atrium no longer contracts rhythmically," explains Rüdiger Lange from the German Heart Center Munich.

Life Sciences - Health - 19.07.2019
Bouncers in the Bone Marrow
07/19/2019 Würzburg Scientists found that megakaryocytes act as "bouncers" and thus modulate bone marrow niche properties and cell migration dynamics. The study was published in the Journal "Haematologica". Hematopoiesis is the process of forming blood cells, which occurs predominantly in the bone marrow.

Astronomy / Space - 18.07.2019
"It was the greatest adventure of the 1960s"
Professor Schreiber, how big an impression did the Moon landing make on you when you were young? It wasn't just the Moon landing as such. What amazed me most were the steps that led up to it. It was a huge technical challenge. For example the question: How do I accelerate a rocket to reach the Moon? Back then, the technical possibilities were still quite limited.

Environment - Life Sciences - 18.07.2019
How climate change disrupts relationships
How climate change disrupts relationships
07/18/2019 Plants rely on bees for pollination; bees need plants to supply nectar and pollen. Scientists from the University of Würzburg have studied how climate change affects these mutualistic interactions.

Astronomy / Space - Physics - 17.07.2019
Hunting for
Hunting for "ghost particles": Neutrino observatory at the South Pole will be extended
For almost ten years, scientists from all over the world have been using the large-scale experiment "IceCube" to search for neutrinos in the permanent ice of the South Pole. Neutrinos are the smallest particles that reach Earth as cosmic rays. Now the participating researchers, among them Prof. Alexander Kappes from the University of Münster, are pleased about a huge upgrade of the laboratory, which should contribute to measuring the properties of neutrinos much more accurately than before.

Life Sciences - 16.07.2019
The physiology of survival
The physiology of survival
The survival and growth of cells are central factors in biological systems. Scientists such as Ulrich Gerland, Professor for Physics of Complex Biosystems at the TUM, are therefore trying to understand how the molecular components interact to maintain the viability of a group of cells in stress situations.

Environment - Computer Science - 16.07.2019
Tracking down climate change with radar eyes
Tracking down climate change with radar eyes
"The Arctic is a hotspot of climate change," explains Prof. Florian Seitz of the German Geodetic Research Institute at the Technical University of Munich (TUM). "Due to rising temperatures, the glaciers of Greenland are receding. At the same time sea ice is melting. Every year, billions of liters of meltwater are released into the ocean." The enormous volumes of fresh water released in the Arctic not only raise the sea level, they also have the potential to change the system of global ocean currents - and thus, our climate.

Physics - 12.07.2019
Which is the perfect quantum theory?
Which is the perfect quantum theory?
Is that a dog or a cat? Such a classification is a prime example of machine learning: artificial neural networks can be trained to analyze images by looking for patterns that are characteristic of specific objects. Provided the system has learned such patterns, it is able to recognize dogs or cats on any picture.

Astronomy / Space - Environment - 12.07.2019
New Findings on Early Bombardment of the Earth and Moon and Their Development
Freie Universität Researchers Contribute to International Study Published in Nature No 215/2019 from Jul 12, 2019 How did the Earth evolve from a fireball about 4.5 billion years ago to a habitable world? The key to this question lies in the early history of our planet, when the bombardment with cosmic bodies slowly declined.

Health - Pharmacology - 11.07.2019
Successful’T cell engineering with gene scissors
There are two forms of T cell therapy: either a recipient receives cells from a donor, or the recipient's own T cells are removed, genetically reprogrammed in a laboratory and unleashed against an infection or tumor in the body. While the first method has proven to be successful in clinical models, reprogramming T cells is still beset with problems.

Life Sciences - Health - 10.07.2019
The battle between virus and host cell
The battle between virus and host cell
Würzburg Scientists have precisely followed the activity of thousands of genes in individual cells for hours. For the first time, they were able to show why some cells are successfully infected by viruses, whereas others are not. When viruses enter our bodies - such as during an influenza or a gastrointestinal infection - the processes within the infected cells change: In the worst case, the virus takes the helm and reprograms the cell to its advantage.