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Phylogenetic trees map the evolution and ancestral relationships of organisms. At least that is the theory. Researchers at the University of Basel have now revealed that for many bacteria this theory is based on mistaken assumptions. These phylogenies are not a reliable indicator of common ancestry but rather reflect how extensively different bacteria have exchanged genes with each other. This finding implies that the theories of how bacterial genomes evolve need to be completely reconsidered.
Hearing sounds that are linked to positive experiences from the past can considerably increase well-being, reduce depressive moods and alleviate behavioral problems in people with memory loss, a study by the University of Zurich in cooperation with clinical partners has found. The work with music and memories also benefits the nursing staff and carers involved.
One thousand newly-minted microrobots created in EPFL labs will soon be deployed at two large-scale telescopes in Chile and the United States. These high-precision instruments, capable of positioning optical fibers to within a micron, will vastly increase the quantity of astrophysics data that can be gathered - and expand our understanding of the Universe.
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Adhesions are scars in the abdomen, which can occur after surgery, often have serious consequences. Now, researchers from the University of Bern and Inselspital, University Hospital Bern, in collaboration with Canadian researchers, have discovered how such adhesions form. The findings may help to develop a drug to prevent adhesions in the future.
Phylogenetic trees map the evolution and ancestral relationships of organisms. At least that is the theory. Researchers at the University of Basel have now revealed that for many bacteria this theory is based on mistaken assumptions. These phylogenies are not a reliable indicator of common ancestry but rather reflect how extensively different bacteria have exchanged genes with each other.
One thousand newly-minted microrobots created in EPFL labs will soon be deployed at two large-scale telescopes in Chile and the United States. These high-precision instruments, capable of positioning optical fibers to within a micron, will vastly increase the quantity of astrophysics data that can be gathered - and expand our understanding of the Universe.
Hearing sounds that are linked to positive experiences from the past can considerably increase well-being, reduce depressive moods and alleviate behavioral problems in people with memory loss, a study by the University of Zurich in cooperation with clinical partners has found. The work with music and memories also benefits the nursing staff and carers involved.
A team from the University of Geneva studied the ash from volcanic eruptions and discovered two effects of ash sedimentation that will improve our ability to predict the danger posed by volcanic ash clouds. When the Eyjafjallajökull volcano in Iceland erupted in April 2010, air traffic was interrupted for six days and then disrupted until May.
Until now, researchers have found no evidence of global tectonic activity on planets outside our solar system. Under the leadership of the University of Bern and the National Center of Competence in Research NCCR PlanetS, scientists have now found that the material inside planet LHS 3844b flows from one hemisphere to the other and could be responsible for numerous volcanic eruptions on one side of the planet.
Energy management in a house with a solar system is becoming increasingly complex: When do I turn on the heating so that it is nice and cosy in the evening? How much electricity can the hot water tank hold? Will there still be enough energy for the electric car? Artificial Intelligence (AI) can help solve the problem: Researchers at Empa developed an AI control system that can learn all these tasks - and save more than 25 percent energy in the process.
In Lake Constance, sticklebacks are occupying increasingly varied habitat types - in recent years even including the open and deep waters of the lake. In an Eawag review undertaken as part of the "SeeWandel" project, these uniquely diverse ecological adaptations are explained in terms of renewed contact between three stickleback lineages - including one originating from the Baltic region, whose genetic material is as yet rarely observed in other Swiss lakes.
Chemical engineers at EPFL have developed a graphene filter for carbon capture that surpasses the efficiency of commercial capture technologies, and can reduce the cost carbon capture down to $30 per ton of carbon dioxide. One of the main culprits of global warming is the vast amount of carbon dioxide pumped out into the atmosphere mostly from burning fossil fuels and the production of steel and cement.
An international research group led by the University of Basel has developed a promising strategy for therapeutic cancer vaccines. Using two different viruses as vehicles, they administered specific tumor components in experiments on mice with cancer in order to stimulate their immune system to attack the tumor.
The brain's emotion-processing center — the amygdala — is one of several brain regions involved in social behavior. But the exact role that this almond-shaped structure plays in the so-called ‘social brain' remains mysterious. Now, the Lüthi group has found that the activity of different populations of neurons in the amygdala reflects whether mice interact with their peers, or whether they focus on self-centered behaviors such as grooming.
Hyaluronic acid, also known as hyaluronan, is a polysaccharide that helps establish the viscosity of bodily fluids. According to a new study by EPFL scientists, it also influences the behavior of far more water molecules than previously thought. Their findings - just published in Science Advances - open new avenues of research on the role water plays in the human body.
A researcher from the University of Geneva has compiled the scientific literature of the last five years linking emotion and climate change, highlighting the main levers that will make it possible to strengthen behaviour in favour of sustainable development. Emotions are often the victim of their bad reputation, as they are considered "irrational", but they play a major role in helping us assess the world and guide our behaviour.
Using the extinct niobium-92 atom, ETH researchers have been able to date events in the early solar system with greater precision than before. The study concludes that supernova explosions must have taken place in the birth environment of our sun. If an atom of a chemical element has a surplus of protons or neutrons, it becomes unstable.
A team from SCCL has discovered that CD4 T lymphocytes, which usually play a supporting role in fighting cancer cells, also have the power to destroy them. Treatments for beating tumours are mainly based on CD8 T lymphocytes, which specialise in detecting and eliminating intracellular infections and in killing cancer cells.
How dangerous are new mutations of the SARS-CoV-2 virus? An international team involving researchers from the Institute of Virology and Immunology (IVI) of the Federal Food Safety and Veterinary Office BLV and the University of Bern (Switzerland), the Centers for Disease Control and Prevention (USA), and the Friedrich-Loeffler Institute (Germany), has developed an approach that can accurately assess the transmissibility of new virus mutants.
New EPFL research on whether handwriting skills transfer when a child writes in two different alphabetic scripts may pave the way for cross-lingual digital tools for the detection of handwriting difficulties. Despite the increasing digitization of education and the use of use of tablets and laptops in schools, handwriting has maintained its central position in learning as the basis of many core educational activities such as taking notes, composing stories and self-expression.
Researchers at the Paul Scherrer Institute PSI and the partner institute Empa have started a joint initiative called SynFuels. The goal is to develop a process for producing kerosene from renewable resources. In this way liquid fuel mixtures of the highest quality, which would allow the most residue-free combustion possible and thus be suitable for aircraft propulsion, should be obtainable using carbon dioxide and hydrogen from renewable resources.
Copepods (minute crustaceans with paddle-like feet) can differentiate between disturbances in water generated by nearby organisms and turbulence caused by wind or waves - an ability which helps them to find mates. It had previously been assumed that turbulent conditions would impede the quest for mates.
Competence centre for data science Statistical methods, data science and artificial intelligence: the FSO and UniNE intensify their cooperation 25.02.2021 - The University of Neuchâtel (UniNE) and the Federal Statistical Office (FSO) are reinforcing their cooperation in the field of data science and statistical methods.
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