news
Category
Years
2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Results 181 - 200 of 362.
Bacteria of the genus Streptomyces produce chemical substances called arginoketides, to which many other microorganisms react: Bacteria form biofilms, algae join together to form aggregates, and fungi produce signalling substances that they would not otherwise produce triggering new responses from other organisms.
Shape-shifting cells at the flick of a switch
Research team with Göttingen University uses light to reversibly change the shape of red blood cells Membranes are crucial to the functioning of living cells: they separate the cells from the environment and protect them; they transport nutrients into the middle of the cell; and they are vital when cells grow together to form tissues, reproduce by division or move around.
Research team with Göttingen University uses light to reversibly change the shape of red blood cells Membranes are crucial to the functioning of living cells: they separate the cells from the environment and protect them; they transport nutrients into the middle of the cell; and they are vital when cells grow together to form tissues, reproduce by division or move around.
Light-switchable molecules in membranes enable different forms of living cells to be studied Membranes fulfil a variety of tasks in living cells: for example, they separate the cells from their surroundings and thus protect them. Also, by means of transport proteins they convey the necessary nutrients to the interior.
New procedure improves measurement of human brain activity Measuring human brain activity down to the cellular level: until now, this has been possible only to a limited extent. With a new approach developed by researchers at the Technical University of Munich (TUM), it will now be much easier. The method relies on microelectrodes along with the support of brain tumor patients, who participate in studies while undergoing "awake" brain surgery.
Making history with 42 digits: Scientists at Paderborn University and KU Leuven have unlocked a decades-old mystery of mathematics with the so-called ninth Dedekind number. Experts worldwide have been searching for the value since 1991. The Paderborn scientists arrived at the exact sequence of numbers with the help of the Noctua supercomputer located there.
International research team sheds light on puberty of extinct vertebrates some 240 million years ago Fossil skeletons have long fascinated scientists as a window to prehistory. But until now, little has been known about details of the sexual development of extinct creatures. An international team of scientists from China, Germany and Japan, with significant participation from the University of Bonn, reports on the puberty of Keichousaurus in the journal Current Biology.
Phagocytes can exacerbate renal disease. If they are tissue-resident, inhibitors are of no use Mononuclear phagocytes (MNP) defend the kidney against infection. But they can also promote the progression of sterile inflammation, such as that triggered by mechanical stimuli rather than microbes. In contrast to previous concepts, these immune cells are not only recruited to the site of inflammation, but also proliferate from kidney-resident MNP.
In a multicentre phase 3 trial, researchers at the MHH have demonstrated the efficacy and safety of the drug Bulevirtide, which prevents HD viruses from entering the liver. Infection with hepatitis D virus (HDV) causes the most severe form of chronic, viral hepatitis disease. About ten to 20 million people worldwide are affected.
News from Living organisms use powerful physical principles to control interactions at their surfaces. Researchers at the Leibniz Institute of Polymer Research Dresden, Leipzig University and TU Dresden have now discovered why cholesterol-containing surfaces can exhibit greatly reduced attachment of proteins and bacteria.
Wild animals entered into diverse relationships with humans long before the first settlements were established in the Neolithic period around 10,000 years ago. An international study by researchers from the Universities of Tübingen, Helsinki and Aarhus presents new evidence that ravens helped themselves to people's scraps and picked over mammoth carcasses left by human hunters during the Pavlovian culture more than 30,000 years ago in what is now Moravia in the Czech Republic.
Team led by biologist Carsten Grashoff from the University of Münster has developed a new method for examining mechanical processes in cells / Study published in Science Advances The cells in our body are continuously exposed to mechanical forces that are either externally applied or generated by the cells themselves.
A single mutation stands in the way of a drug's effectiveness. Understanding it helps find new therapeutic approaches. So far, there are no specific drugs to treat the hepatitis E virus. Doctors only have the broad-spectrum antiviral drug ribavirin at their disposal, which is often associated with severe side effects.
Researchers discover vulnerabilities in Microsoft Office application The problem affects signatures in Word documents, for example. Users who need to securely send an important Word document digitally can protect it with a digital signature. But as researchers from the Network and Data Security department at the Horst Görtz Institute for IT Security at Ruhr University Bochum, Germany, and the Mainz University of Applied Sciences have discovered, attackers can easily manipulate the document without being detected.
Social isolation is very likely to have a negative impact on brain function. In people who have little social contact and are over 50, the structure of the brain's grey matter decreases more over time than in people who are less isolated. There is also a decline in cognitive performance. These are the findings of a study conducted by the University of Leipzig Medical Center in collaboration with the Max Planck Institute for Human Cognitive and Brain Sciences.
The trace element selenium is indispensable for the human body and brain. Among other things, the human organism needs selenium for the immune system and the function of the thyroid gland," says Maria Schwarz from Friedrich Schiller University in Jena. Together with Anna P. Kipp and Caroline E. Meyer, the nutrition scientist from the Department of Nutritional Physiology has investigated the correlations between the trace elements copper and selenium in the human organism.
Calculation model compares climate friendliness of gas and electricity Heating and cooking with natural gas is often more harmful to the climate than previously thought. This is the result of a new calculation model developed by researchers at the Technical University of Munich (TUM). The special feature: It also includes the enormous quantities of gas that escape unused into the atmosphere.
A 3D model of a 407-million-year-old plant fossil has overturned thinking on the evolution of leaves / "Science" publication A 3D model of a 407-million-year-old plant fossil has overturned thinking on the evolution of leaves. The research has also led to fresh insights about spectacular patterns found in plants.
A research team from Bochum and Newcastle has discovered new neuronal network mechanisms of flexibility in learning behaviour. Get up. Go to the kitchen. Prepare some cereal - but a look into the fridge shows: the milk bottle is empty. What now? Skip breakfast? Ask the neighbour for milk? Eat jam sandwiches? Every day, people are confronted with situations that were actually planned quite differently.
A new study indicates that one of the largest of the indigenous language families in Latin America originated in the sixth century BCE in the basin of the Rio Tapajós and Rio Xingu, near the present-day city of Santarém in the Brazilian state of Pará. There are around fifty languages in the Tupí-Guaraní language family, which gave us words like -jaguar- and -piranha.
Current psychological study on gender and age differences Psychologists at the Westfälische Wilhelms-Universität (WWU) in Münster, Germany, have joined forces with an international consortium to conduct the most comprehensive study to date on gender and age differences on the topic of narcissism. The scientists surveyed around 270,000 people for their study.
