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Results 81 - 100 of 171.


Physics - Chemistry - 05.03.2024
A new theoretical development clarifies water's electronic structure
A new theoretical development clarifies water's electronic structure
Scientists at EPFL have decoded the electronic structure of water, opening up new perspectives for technological and environmental applications. There is no doubt that water is significant. Without it, life would never have begun, let alone continue today - not to mention its role in the environment itself, with oceans covering over 70% of Earth.

Physics - 04.03.2024
DIY structured-illumination microscope
DIY structured-illumination microscope
Scientists at EPFL have published a guide to building an add-on that turns a standard optical microscope into an instrument capable of producing super resolution, 3D images of cells, organoids, and embryos. For hundreds of years, the optical microscope was the only tool available to scientists wanting to study the movement of cells, bacteria and yeast.

Life Sciences - Health - 04.03.2024
Dopamine production is not behind vulnerability to cocaine abuse
Dopamine production is not behind vulnerability to cocaine abuse
A team from the University of Geneva shows that our ability to produce dopamine - the 'happiness hormone' - is not correlated with increased vulnerability to drugs. Why do some people who try drugs struggle with substance abuse while others don't? This question has long puzzled scientists. A team from the University of Geneva explored the complex interplay between personality traits and brain chemistry.

Environment - Innovation - 04.03.2024
Cost of direct air carbon capture to remain higher than hoped
Cost of direct air carbon capture to remain higher than hoped
The cost of removing large quantities of CO2 from the air will fall in the medium term, but not as much as previously hoped. This is the conclusion reached by researchers on the basis of new calculations. Efforts to reduce carbon emissions should therefore continue at pace, says the research team. Switzerland plans to reduce its net carbon emissions to zero by no later than 2050.

Environment - Life Sciences - 01.03.2024
Glacier shrinkage is causing a 'green transition'
Glacier shrinkage is causing a ’green transition’
Glacier-fed streams are undergoing a process of profound change, according to scientists in a paper appearing in Nature Geoscience. This conclusion is based on the expeditions to the world's major mountain ranges by members of the Vanishing Glaciers project. Microbial life will flourish in mountain streams because of ongoing glacier shrinkage.

Materials Science - Innovation - 01.03.2024
Turning waste into gold
Turning waste into gold
Researchers have recovered the precious metal from electronic waste. Their highly sustainable new method is based on a protein fibril sponge, which the scientists derive from whey, a food industry byproduct. Transforming base materials into gold was one of the elusive goals of the alchemists of yore.

Physics - Pharmacology - 29.02.2024
Cause of clogged hypodermic needles discovered
Cause of clogged hypodermic needles discovered
Researchers at the Paul Scherrer Institute PSI and the ANAXAM technology transfer center have used neutron and synchrotron imaging to determine the conditions under which pre-filled syringes become blocked. In very rare cases, the needles of prefilled syringes may become blocked. This can have potentially detrimental consequences for patients if their medication does not enter the body or the dosage is too low.

Life Sciences - Health - 29.02.2024
The 'switch' that keeps the immune system from attacking the body
The ’switch’ that keeps the immune system from attacking the body
Scientists at EPFL uncover the mechanism by which cells mark the protein cGAS for degradation, which is critical in preventing the immune system from mistakenly attacking the body's own tissues. A microscopic battle rages in our bodies, as our cells constantly fend off invaders through our immune system, a complex system of cells and proteins designed to protect us from harmful pathogens.

Astronomy / Space - Earth Sciences - 28.02.2024
Do we have cosmic dust to thank for life on Earth?
Do we have cosmic dust to thank for life on Earth?
It might be that what set prebiotic chemistry in motion and kept it going in the early days of the Earth was dust from outer space accumulating in holes melted into ice sheets. Researchers at ETH Zurich and the University of Cambridge have used a computer model to test this scenario. Before life existed on Earth, there had to be chemistry to form organic molecules from the chemical elements nitrogen, sulphur, carbon and phosphorus.

Environment - Social Sciences - 27.02.2024
Sustainability of cultural institutions: an initial analysis
Sustainability of cultural institutions: an initial analysis
Do museums, theaters and cultural institutions have a good record in terms of social and environmental sustainability - Researchers at the University of Lausanne have conducted an international survey of over 200 major institutions.

Health - Innovation - 27.02.2024
Finding and blocking infection routes in hospitals
During the COVID-19 pandemic, hospitals often became hubs of infection. Researchers from ETH Zurich, EPFL and the ISI Foundation are developing a wearable tracking system for healthcare facilities that can identify the risks of infections. Initial tests in Switzerland and Africa show its potential. Hospital-acquired infections are an immense problem.

Health - Physics - 27.02.2024
Nanotweezers accelerate phage therapy
Nanotweezers accelerate phage therapy
Scientists at EPFL have developed a game-changing technique that uses light to manipulate and identify individual bacteriophages without the need for chemical labels or bioreceptors, potentially accelerating and revolutionizing phage-based therapies that can treat antibiotic-resistant bacterial infections.

Astronomy / Space - Earth Sciences - 26.02.2024
Earth as a test object
Earth as a test object
Physicists at ETH Zurich and the University of Zurich wanted to know whether the planned LIFE space mission could really detect traces of life on other planets. Yes, it can. The researchers reached this conclusion with the help of observations of our own planet. Life is indeed possible on Earth. This has been demonstrated in a study conducted by the Institute of Particle Physics and Astrophysics at ETH Zurich.

Health - Life Sciences - 26.02.2024
Arterial Connections Improve Treatment Outcomes Following Stroke
Arterial Connections Improve Treatment Outcomes Following Stroke
Blood vessels that cross-connect adjacent arterial trees regulate blood flow to the brain in stroke patients. Researchers at the University of Zurich have now shown that these vessels prevent brain hemorrhage following treatment to remove blood clots. They play a crucial role in the recovery of stroke patients.

Astronomy / Space - 26.02.2024
Impact of the DART space probe could have deformed an asteroid
Thanks to simulations with a software system developed at the University of Bern, an international team under Bernese leadership has provided important insights into the impact of NASA's DART space probe on the asteroid Dimorphos: it is very likely that not just a crater was created, but the entire asteroid was reshaped.

Health - Pedagogy - 26.02.2024
Anything-in-anything-out: a new modular AI model
Researchers at EPFL have developed a new, uniquely modular machine learning model for flexible decision-making. It is able to input any mode of text, video, image, sound, and time-series and then output any number, or combination, of predictions. We've all'heard of Large Language Models, or LLMs - massive scale deep learning models trained on huge amounts of text that form the basis for chatbots like OpenAI's ChatGPT.

Life Sciences - Health - 22.02.2024
Cracking the Code of Neurodegeneration
Cracking the Code of Neurodegeneration
Scientists at the University of Zurich have developed an innovative neural cell culture model, shedding light on the intricate mechanisms underlying neurodegeneration. Their research pinpointed a misbehaving protein as a promising therapeutic target in the treatment of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD).

Computer Science - Innovation - 22.02.2024
AI-driven method helps improve quality assurance for wind turbines
An international collaboration between EPFL and the University of Glasgow has led to an advanced machine-learning algorithm to effectively detect concealed manufacturing defects in wind turbine composite blades - before turbines are put into service. Faulty wind turbine blades can incur huge costs for the companies that operate them, especially if the defects go unnoticed until it's too late.

Life Sciences - Health - 21.02.2024
Bio-inspired neuroprosthetics: sending signals the brain can understand
Bio-inspired neuroprosthetics: sending signals the brain can understand
Prostheses that connect to the nervous system have been available for several years. Now, researchers at ETH Zurich have found evidence that neuroprosthetics work better when they use signals that are inspired by nature. A few years ago, a team of researchers working under Professor Stanisa Raspopovic at the ETH Zurich Neuroengineering Lab gained worldwide attention when they announced that their prosthetic legs had enabled amputees to feel sensations from this artificial body part for the first time.

Physics - Chemistry - 20.02.2024
It's the spin that makes the difference
It’s the spin that makes the difference
Biomolecules such as amino acids and sugars occur in two mirror-image forms - in all living organisms, however, only one is ever found. Why this is the case is still unclear. Researchers at Empa and Forschungszentrum Jülich in Germany have now found evidence that the interplay between electric and magnetic fields could be at the origin of this phenomenon.