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Results 101 - 120 of 279.


Life Sciences - Health - 30.06.2021
Unlocking the power of the microbiome
Unlocking the power of the microbiome
Not only animals and humans host a complex community of microorganisms - plants do this as well. Researchers at ETH Zurich have recently published two new studies that shed light on fundamental aspects of these close - and often overlooked - relationships. Hundreds of different bacterial species live in and on leaves and roots of plants.

Electroengineering - Physics - 29.06.2021
Stretching changes the electronic properties of graphene
Stretching changes the electronic properties of graphene
The electronic properties of graphene can be specifically modified by stretching the material evenly, say researchers at the University of Basel. These results open the door to the development of new types of electronic components. Graphene consists of a single layer of carbon atoms arranged in a hexagonal lattice.

Environment - Life Sciences - 29.06.2021
Aquatic life underground
Aquatic life underground
Groundwater is also an ecosystem, but little is known about the biodiversity underground. researchers have now documented the diversity of life in Swiss groundwater in a pilot study - and discovered previously unknown species of amphipods in the process. Here they relied on a citizen science approach.

Life Sciences - 29.06.2021
How proteins bind 'hidden' DNA
How proteins bind ’hidden’ DNA
How can proteins bind DNA in the cell nucleus, where it is present in form of chromatin, tightly wrapped around histones and therefore mostly inaccessible? Recently, several studies began to uncover the various strategies used by DNA-binding proteins to solve this problem. In a Cell "Leading Edge review", Alicia Michael and Nico Thomä look at these findings and highlight general principles that aim to help predict how a protein recognizes a specific stretch of DNA, even when "hidden" in chromatin.

Life Sciences - Health - 29.06.2021
Managing attention deficit disorder by training the brain
Managing attention deficit disorder by training the brain
A team from the UNIGE and the HUG has found that a special type of brain training based on the principle of 'neurofeedback' enables people with attention deficit disorder to improve their ability to concentrate. Attention Deficit Hyperactivity Disorder (ADHD) affects about 7% of children, with a two out of three chance of persisting into adulthood.

Life Sciences - 28.06.2021
Unusual prey: spiders eating snakes
Unusual prey: spiders eating snakes
There are spiders that eat snakes. Observations of snake-eating spiders have been reported around the world. Two researchers from Basel and the US consolidated and analyzed over 300 reports of this unusual predation strategy. Spiders are primarily insectivores, but they occasionally expand their menu by catching and eating small snakes.

Life Sciences - Agronomy / Food Science - 28.06.2021
Optimising nature
Optimising nature
Today, molecular genetic methods can be used to breed sustainable crops - such as multinutrient rice. Researchers are calling for the risk of new plant varieties to be assessed not on the basis of the breeding method, but on the basis of their characteristics. When it comes to food, many people yearn for nature in its most pristine state.

Environment - 28.06.2021
New model simulates the tsunamis caused by iceberg calving
New model simulates the tsunamis caused by iceberg calving
A team of scientists has developed a new model for simulating both iceberg calving and the tsunamis that are triggered as a result. Their method can help improve hazard assessment in coastal areas and refine the empirical calving models used to evaluate rising sea levels. Johan Gaume, an EPFL expert in avalanches and geomechanics, has turned his attention to ice.

Astronomy / Space Science - Economics / Business - 28.06.2021
Unique exoplanet photobombs CHEOPS study of nearby star system
Unique exoplanet photobombs CHEOPS study of nearby star system
While studying two exoplanets in a bright nearby star system, the CHEOPS satellite has unexpectedly spotted the system's third known planet crossing the face of the star. This transit reveals exciting details about a rare planet -with no known equivalent-, as the scientific team led by the Universities of Geneva and Bern, and members of the National Center of Competence in Research PlanetS, point out.

Environment - Materials Science - 25.06.2021
Crown ethers improve perovskite solar cell stability
Crown ethers improve perovskite solar cell stability
Scientists have used an unprecedented method with multimodal host-guest complexation to greatly improve the stability of perovskite solar cells while also reducing the release of lead into the environment. Perovskites are hybrid compounds made from metal halides and organic constituents, and show great potential in a range of applications, e.g. LED lights, lasers, and photodetectors.

Life Sciences - Health - 24.06.2021
Preventing the break-in of the toxoplasmosis parasite
Preventing the break-in of the toxoplasmosis parasite
Scientists from the universities of Geneva and Zurich and the PSI have identified the structure and functions of RON13, an enzyme of the toxoplasmosis parasite that is essential for the infectious mechanism in humans. Toxoplasma gondii , the parasite responsible for toxoplasmosis, is capable of infecting almost all cell types.

Chemistry - 24.06.2021
An artificial leaf made from semiconducting polymers
An artificial leaf made from semiconducting polymers
Scientists are generating oxygen from sunlight, water and semiconducting polymers. They present a promising way towards economical and scalable solar fuel production. Natural photosynthesis evolved to covert water and sunlight into oxygen (O2) and stored chemical energy. In plants this process is not very efficient, however the possibility to convert sunlight into chemical fuel in an economical and globally scalable manner is a very attractive method for reducing our dependence on fossil fuels.

Life Sciences - Environment - 24.06.2021
Eawag test with fish cells replaces animal experiments
Eawag test with fish cells replaces animal experiments
The OECD gives the green light to the fish cell line assay developed at Eawag. This paves the way for companies and authorities around the world to determine the environmental toxicology of chemicals without having to resort to animal testing. A large number of chemicals are used in everyday products, in agriculture or in industry.

Agronomy / Food Science - Environment - 24.06.2021
Mixed cultures for a greater yield
Mixed cultures for a greater yield
What holds true for meadows would seem to apply to arable land, too: mixed cultures are more fruitful than monocultures. This was the outcome of an ETH Zurich research project led by Christian Schöb. Monocultures dominate arable land today, with vast areas given over to single elite varieties that promise a high yield.

Life Sciences - 24.06.2021
A virus to identify small peptide mimics of antifreeze proteins
A virus to identify small peptide mimics of antifreeze proteins
Scientists at EPFL and the University of Warwick have used a virus to identify a peptide that can serve the same function as antifreeze proteins. By preventing ice formation, the compound could play a key role in preserving cells and organ transplants and in food conservation. Some organisms have developed special "antifreeze" proteins that let them survive in sub-zero temperatures.

Environment - Materials Science - 23.06.2021
Harvesting drinking water from humidity around the clock
Harvesting drinking water from humidity around the clock
Researchers at ETH Zurich have developed a condenser for countries where water is in short supply. Theirs is the first zero-energy solution for harvesting water from the atmosphere throughout the 24-hour daily cycle. It relies on a self-cooling surface and a special radiation shield. Fresh water is scarce in many parts of the world and must be obtained at great expense.

Earth Sciences - Environment - 22.06.2021
Analysing volcanoes to predict their awakening
Analysing volcanoes to predict their awakening
Geologists have reviewed the internal and external mechanisms that trigger volcanic eruptions to better anticipate the potential signs of a future eruption. What causes an eruption? Why do some volcanoes erupt regularly, while others remain dormant for thousands of years? A team of geologists and geophysicists, led by the University of Geneva , Switzerland, has reviewed the literature on the internal and external mechanisms that lead to a volcanic eruption.

Chemistry - Environment - 22.06.2021
Worrying insights into the chemicals in plastics
Researchers examined chemicals in plastics worldwide. They found an unexpectedly high number of substances of potential concern intentionally used in everyday plastic products. A lack of transparency limits management of these chemicals. Plastic is practical, cheap and incredibly popular. Every year, more than 350 million tonnes are produced worldwide.

Health - Life Sciences - 21.06.2021
Microscopy Deep Learning Predicts Viral Infections
Microscopy Deep Learning Predicts Viral Infections
When viruses infect cells, changes in the cell nucleus occur, and these can be observed through fluorescence microscopy. Using fluoresence images from live cells, researchers at the University of Zurich have trained an artificial neural network to reliably recognize cells that are infected by adenoviruses or herpes viruses.

Life Sciences - Health - 21.06.2021
Pathogenic bacteria rendered almost harmless
Pathogenic bacteria rendered almost harmless
By identifying one of the mechanisms regulating the virulence of Pseudomonas aeruginosa, a team from the University of Geneva is proposing a new strategy to combat this bacterium, which is resistant to many common antibiotics. Pseudomonas aeruginosa is an opportunistic pathogenic bacterium present in many ecological niches, such as plant roots, stagnant water or even the pipes of our homes.

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