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Results 161 - 180 of 264.
Health - 26.06.2024
Why some people with the flu may be more contagious
Scientists have discovered that in indoor spaces, droplets containing the flu virus will remain infectious for longer when they also contain certain types of bacteria found in our respiratory tract. This finding provides important insight into how respiratory infections are transmitted and can enhance estimates of exposure risk.
Environment - Earth Sciences - 25.06.2024
Geological archives predict our climate future
By analysing 56-million-year-old sediments, a team from the University of Geneva has measured the increase in soil erosion caused by global warming, synonymous with major flooding. 56 million years ago, the Earth experienced a major and rapid climate warming due to greenhouse gas emissions, probably due to volcanic eruptions.
Physics - 25.06.2024
Moving objects precisely with sound
Researchers have succeeded in directing floating objects around an aquatic obstacle course using only soundwaves. Their novel, optics-inspired method holds great promise for biomedical applications such as noninvasive targeted drug delivery. In 2018, Arthur Ashkin won the Nobel Prize in Physics for inventing optical tweezers : laser beams that can be used to manipulate microscopic particles.
Materials Science - Chemistry - 25.06.2024
Gold membrane coaxes secrets out of surfaces
Using a special wafer-thin gold membrane, researchers have made it significantly easier to study surfaces. The membrane makes it possible to measure properties of surfaces that are inaccessible to conventional methods. "Surfaces were invented by the devil" - this quote is attributed to the theoretical physicist Wolfgang Pauli, who taught at ETH Zurich for many years and in 1945 received the Nobel Prize in physics for his contributions to quantum mechanics.
Life Sciences - Health - 24.06.2024
The hippocampus, the cerebral conductor of our daily priorities
Scientists from the University of Geneva and the Icahn School of Medicine have shown how a specific region of our brain is activated to prioritise our activities. How does our brain distinguish between urgent and less urgent goals? Researchers at the University of Geneva and the Icahn School of Medicine in New York have explored how our brain remembers and adjusts the goals we set ourselves on a daily basis.
Environment - Chemistry - 24.06.2024
Atom-thin graphene membranes make carbon capture more efficient
Scientists at EPFL have developed advanced atom-thin graphene membranes with pyridinic-nitrogen at pore edges, showing unprecedented performance in CO2 capture. It marks a significant stride toward more efficient carbon capture technologies. As the world battles climate change, the need for efficient and cost-effective carbon capture technologies is more urgent than ever.
Life Sciences - Health - 21.06.2024
Unifying behavioral analysis through animal foundation models
Behavioral analysis can provide a lot of information about the health status or motivations of a living being. A new technology developed at EPFL makes it possible for a single deep learning model to detect animal motion across many species and environments. This -foundational model-, called SuperAnimal, can be used for animal conservation, biomedicine, and neuroscience research.
Pharmacology - Life Sciences - 21.06.2024
Membrane protein analogues could accelerate drug discovery
Researchers have created a deep learning pipeline for designing soluble analogues of key protein structures used in pharmaceutical development, sidestepping the prohibitive cost of extracting these proteins from cell membranes. Many drug and antibody discovery pathways focus on intricately folded cell membrane proteins: when molecules of a drug candidate bind to these proteins, like a key going into a lock, they trigger chemical cascades that alter cellular behavior.
Physics - Chemistry - 20.06.2024
An alternative way to manipulate quantum states
Researchers at ETH Zurich have shown that quantum states of single electron spins can be controlled by currents of electrons whose spins are evenly aligned. In the future, this method could be used in electronic circuit elements. Electrons have an intrinsic angular momentum, the so-called spin, which means that they can align themselves along a magnetic field, much like a compass needle.
Health - Pharmacology - 20.06.2024
Antibiotic resistance: concerning situation in sub-Saharan African children
Focusing on enterobacteria, two studies by the University of Geneva and the HUG highlight the alarming situation in this region of the world in terms of antibiotic resistance. Enterobacteriaceae are commensal bacteria of the digestive flora that can be responsible for serious infections. HUG Two meta-analysis undertaken by the Geneva University Hospital (HUG) and the University of Geneva have revealed very worrying numbers of children in Sub-Saharan Africa who are carriers of multi-resistant bacterial strains.
Life Sciences - 19.06.2024
Interaction with Insects Accelerates Plant Evolution
A team of researchers at the University of Zurich has discovered that plants benefit from a greater variety of interactions with pollinators and herbivores. Plants that are pollinated by insects and have to defend themselves against herbivores have evolved to be better adapted to different types of soil.
Health - Life Sciences - 19.06.2024
Mapping the biology of spinal cord injury in unprecedented detail
Combining advanced molecular mapping technologies and AI, researchers have published an open-source 'atlas' in Nature, providing a comprehensive understanding of spinal cord injury biology in mice and paving the way for new therapies. Scientists at EPFL have achieved a significant research milestone in the field of spinal cord injuries-mapping out the cellular and molecular dynamics of paralysis in unprecedented detail with their open-source project 'Tabulae Paralytica' .
Life Sciences - Health - 19.06.2024
Building a blueprint of metabolic health - from mouse to human
In a new study, scientists have uncovered the complex genetic and environmental interactions influencing metabolic health and have validated their findings in actual human data. Metabolic syndrome (MetS) is a health condition characterized by a group of risk factors: high blood pressure, high blood sugar, unhealthy cholesterol levels, and abdominal fat.
Environment - 17.06.2024
Using radar to study glaciers
Researchers are using radar to scan the snow and ice on the Jungfraujoch. Sometimes, scaling an icy peak is the only way for scientists to fully understand satellite data. Glacier melt is just one of the topics the researchers are here to study. They are also developing new radar methods to directly measure the thickness of the snow cover.
Astronomy / Space - Physics - 17.06.2024
High-precision measurements challenge the understanding of Cepheids
Scientists, through the VELOCE project, have clocked the speed of Cepheid stars - "standard candles" that help us measure the size of the universe - with unprecedented precision, offering exciting new insights about them. Photo: RS Puppis , one of the most luminous Cepheid variable star s, rhythmically brightens and dims over a six-week cycle.
Life Sciences - Health - 14.06.2024
The genetic ’switches’ of bone growth
Scientists at the University of Geneva have identified the genetic sequences that regulate the activity of the genes responsible for bone growth. In mammals, only 3% of the genome consists of coding genes which, when transcribed into proteins, ensure the biological functions of the organism and the in-utero development of future individuals.
Microtechnics - Materials Science - 14.06.2024
Robots au chocolat for dessert?
A fully edible robot could soon end up on our plate if we overcome some technical hurdles, say scientists involved in RoboFood - an project which aims to marry robots and food. Robots and food have long been distant worlds: Robots are inorganic, bulky, and non-disposable; food is organic, soft, and biodegradable.
Life Sciences - Health - 13.06.2024
Gaining a better understanding of brittle bone disease - without animal experiments
Researchers at ETH Zurich have developed a cell-based bone model to help investigate the cause of this genetic condition. For someone suffering from brittle bone disease, life is fraught with complications. The slightest misstep, a seemingly harmless fall or even one false move can be all'it takes to leave them with a broken arm or leg.
History / Archeology - 13.06.2024
6,000 years ago, men and women had equal access to resources
A team from the University of Geneva shows that all the people who lived and were buried in Barmaz necropolises (Switzerland) during the Neolithic period had the same access to food resources. Using isotope geochemistry, a team from the University of Geneva has uncovered new information about the Barmaz necropolis in Valais (Switzerland): 14% of the people buried 6,000 years ago at this site were not locals.
Environment - Life Sciences - 13.06.2024
Impact of high-temperature heat storage on groundwater
In a recently launched project, the aquatic research institute Eawag is investigating how the use of borehole thermal energy storage (BTES) affects the surrounding soil, the groundwater and the microorganisms living in it. In collaboration with Empa and its Demonstrator Energy Hub (ehub), a project is being developed in a unique setting on the campus in Dübendorf.