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Results 41 - 60 of 209.


History / Archeology - Life Sciences - 02.04.2024
When Did the Chicken Cross the Road? New Evidence from Central Asia
When Did the Chicken Cross the Road? New Evidence from Central Asia
New research reveals that chickens were widely raised across southern Central Asia from 400 BCE through medieval periods and likely dispersed along the ancient Silk Road In a new study published by Nature Communications , an international team of scholars present the earliest clear archaeological and biomolecular evidence for the raising of chickens for egg production, based on material from 12 archaeological sites spanning one and a half millennia.

Health - Materials Science - 28.03.2024
New method developed to isolate HIV particles
New method developed to isolate HIV particles
Researchers at Leipzig University and Ulm University have developed a new method to isolate HIV from samples more easily, potentially making it easier to detect infection with the virus. They focus on peptide nanofibrils (PNFs) on magnetic microparticles, a promising tool and hybrid material for targeted binding and separation of viral particles.

Life Sciences - Health - 28.03.2024
Neurons spoil your appetite
Neurons spoil your appetite
Satiety, nausea or anxiety can all lead to a loss of appetite. Delaying eating can be a healthy move by the body to prevent further damage and to gain time for regenerating. Researchers at the Max Planck Institute for Biological Intelligence now identified the circuit in the brain that prevents mice from eating when they feel nauseous.

Astronomy / Space - 27.03.2024
James Webb Space Telescope: Fascinating Images Show Nearby Spiral Galaxies
James Webb Space Telescope: Fascinating Images Show Nearby Spiral Galaxies
Heidelberg University astrophysicist vital contributor to preparation and study of new data Fascinating new images from NASA's James Webb Space Telescope show the structure of 19 nearby spiral galaxies. They were acquired with infrared light and provide a detailed view of the distribution of stars and the material from which they form.

Health - Life Sciences - 26.03.2024
Gut microbiota and antibiotics: Missing puzzle piece discovered
Gut microbiota and antibiotics: Missing puzzle piece discovered
HIRI scientists have identified a small RNA that influences the sensitivity of the intestinal commensal Bacteroides thetaiotaomicron to certain antibiotics. The intricacies of how intestinal bacteria adapt to their environment have yet to be fully explored.

Physics - Materials Science - 26.03.2024
Parity anomaly detected in topological insulator
Parity anomaly detected in topological insulator
Experimental and theoretical physicists at the Würzburg Institute for Topological Insulators have identified an unusual quantum Hall effect in a mercury telluride device as the signature of the parity anomaly . Topological insulators are materials that can conduct electricity, but only on their surface or edges.

Media - 26.03.2024
Do food and drink preferences influence migration flows?
Researchers at the Max Planck Institute for Demographic Research used Facebook data to investigate the influence of cultural similarities on migration flows and found that cultural proximity plays as important a role in the choice of destination country as shared language and history. When people migrate, many factors play a role in their choice of destination: How well do you speak the new country's language?

Earth Sciences - History / Archeology - 25.03.2024
Scientific Drilling Unravels Historical Mystery Surrounding Santorini
Scientific Drilling Unravels Historical Mystery Surrounding Santorini
Santorini is one of the best-studied volcanic archipelagos in the world. An international drilling expedition has now for the first time used a scientific drill ship to explore and investigate the seafloor around the Greek volcanic island. The researchers have uncovered evidence of an underwater eruption in 726 CE, previously known only from historical records.

Environment - Earth Sciences - 25.03.2024
First global study of coastal seas as carbon dioxide reservoirs possible
First global study of coastal seas as carbon dioxide reservoirs possible
Coastal seas form a complex transition zone between the two largest CO2 sinks in the global carbon cycle: land and ocean. Ocean researchers have now succeeded for the first time in investigating the role of the coastal ocean in a seamless model representation. The team led by Dr. Moritz Mathis from the Cluster of Excellence for Climate Research CLICCS at Universität Hamburg and the Helmholtz-Zentrum Hereon was able to show: The intensity of CO2 uptake is higher in coastal seas than in the open ocean.

Astronomy / Space - Life Sciences - 25.03.2024
Bacteria beyond Earth?
Bacteria beyond Earth?
Signs of life detectable in single ice grains emitted from moons orbiting Saturn and Jupiter The ice-encrusted oceans of some of the moons orbiting Saturn and Jupiter are prime candidates in the search for extraterrestrial life. A new lab-based study led by Freie Universität Berlin and the University of Washington, Seattle, shows that individual ice grains ejected from these planetary bodies may contain enough material for instruments headed there this fall to detect signs of life - if such life exists.

Environment - Economics - 22.03.2024
All Countries' Agri-Environmental Policies at a Glance
All Countries’ Agri-Environmental Policies at a Glance
University of Bonn researchers publish dataset of over 6,000 policies from all'over the world There can be no analysis without data. In this spirit, researchers from the University of Bonn and the Swiss Federal Institution of Technology (ETH) Zurich have published a database containing over 6,000 agri-environmental policies, thus enabling their peers as well as policymakers and businesses to seek answers to all manner of different questions.

Life Sciences - Health - 21.03.2024
Special poison helps to compete with bacteria on mucous membranes
Special poison helps to compete with bacteria on mucous membranes
Candida albicans is a fungus that occurs naturally in the digestive tract of most people. However, the fungus is not always harmless. It can cause mild to severe infections throughout the body. A toxin, Candidalysin, is involved in these infections. It appears to be of central importance in vaginal infections in particular.

Life Sciences - Health - 21.03.2024
Maize genes control little helpers in the soil
Maize genes control little helpers in the soil
Tiny organisms such as bacteria and fungi help to promote the health and function of plant roots. It is commonly assumed that the composition of these microbes is dependent on the properties of the soil. However, an international team of researchers led by the University of Bonn has now discovered when studying different local varieties of maize that the genetic makeup of the plants also helps to influence which microorganisms cluster around the roots.

Environment - Chemistry - 20.03.2024
Harnessing hydrogen at life's origin
Harnessing hydrogen at life’s origin
Researchers gain new insights into how the first cells on Earth were able to use hydrogen gas as an energy source Hydrogen gas (H2) is seen as a key to sustainable energy for the future. Yet it is an ancient form of energy. Even the very first cells on earth lived on H2, which was produced in hydrothermal vents.

Environment - 19.03.2024
Fairy circles: plant water stress causes Namibia's gaps in grass
Fairy circles: plant water stress causes Namibia’s gaps in grass
Researchers describe topsoil as "death zone" for fresh grass in the fairy circle Namibia's legendary fairy circles are mysterious, circular, bald patches in the dry grasslands on the edge of the Namib Desert. Their formation has been researched for decades and has recently been the subject of much debate.

Environment - 19.03.2024
Satellite images from US espionage programmes for ecology and nature conservation
The images taken by US spy satellites since the late 1950s have long been classified. They became publicly accessible in the late 1990s and are used, among others, in climate research and archaeology. Researchers from the Conservation Biogeography Lab of the Institute of Geography at Humboldt-Universität led by Tobias Kümmerle also take interest in the black-and-white photographs.

Physics - Chemistry - 19.03.2024
Spectroscopy and theory shed light on excitons in semiconductors
Spectroscopy and theory shed light on excitons in semiconductors
Research team led by Göttingen University make extremely fast, precise images for first time From solar panels on our roofs to the new OLED TV screens, many everyday electronic devices simply wouldn't work without the interaction between light and the materials that make up semiconductors. A new category of semiconductors is based on organic molecules, which largely consist of carbon, such as buckminsterfullerene.

Life Sciences - Health - 18.03.2024
Cells inherit protection from sunburn
Cells inherit protection from sunburn
UV radiation in the sunlight causes sunburn and increases the risk of skin cancer by damaging our DNA but also our RNA. Researchers at the Max Planck Institute of Immunobiology and Epigenetics in Freiburg, Germany, have now unveiled a cellular shield that protect cells from the harmful effects of damaged RNA caused by ultraviolet radiation.

Health - Life Sciences - 18.03.2024
The laborious path of a fungal toxin
The laborious path of a fungal toxin
The toxin Candidalysin of the yeast Candida albicans is incorporated into an unusual protein structure during an infection, the composition of which has so far been a mystery to scientists. Researchers at the Leibniz Institute for Natural Product Research and Infection Biology (Leibniz-HKI) have now succeeded in deciphering the function of this unusual arrangement.

Environment - 18.03.2024
Reaching under the wings of birds in the agricultural landscape
Reaching under the wings of birds in the agricultural landscape
Research team shows links between agricultural landscape structure and bird populations . The intensification of agriculture has its price: it makes landscapes structurally more uniform and thus contributes to the decline in biodiversity. How should agricultural landscapes be designed in order to promote biodiversity? A new study by researchers from the University of Göttingen, the Dachverband Deutscher Avifaunisten (DDA) e. V.