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Results 41 - 60 of 341.


Life Sciences - 02.10.2020
Woodpeckers' Drumming: Conserved Meaning Despite Different Structure over the Years
Woodpeckers’ Drumming: Conserved Meaning Despite Different Structure over the Years
How do animals produce and perceive biological information in sounds? To what extent does the acoustic structure and its associated meaning change during evolution? An international team led by the University of Zurich and the University of Saint-Etienne reconstructed the evolutionary history of an animal communication system, focusing on drumming signals of woodpeckers.

Chemistry - Materials Science - 01.10.2020
Chemical innovation stabilizes best-performing perovskite formulation
Chemical innovation stabilizes best-performing perovskite formulation
Researchers have successfully overcome a limiting problem with stabilizing the best-performing formulation of metal-halide perovskite films, a key player in a range of applications, including solar cells. Perovskites are a class of materials made up of organic materials bound to a metal. Their fascinating structure and properties have propelled perovskites into the forefront of materials' research, where they are studied for use in a wide range of applications.

Environment - Physics - 01.10.2020
Climate: Iodic acid influences cloud formation at the North Pole
Climate: Iodic acid influences cloud formation at the North Pole
An international team of scientists from EPFL, the Paul Scherrer Institute and Stockholm University has identified a novel driver of new aerosol particle formation in the Arctic during the summer to fall transition. The authors show that iodic acid is important for forming new particles which subsequently influence the formation of clouds and their radiative effect over the Arctic pack ice.

Health - Social Sciences - 01.10.2020
COVID-19: social dilemmas about protective measures
COVID-19: social dilemmas about protective measures
The psychosocial profile of people who resist adopting suitable protective behaviours against the transmission of the SARS-CoV-2 virus provides valuable information about preventing epidemics. Preventive measures are spontaneously adopted by a large section of the population, but pockets of resistance do exist.

Materials Science - Health - 30.09.2020
How local forces deform the lipid membranes
How local forces deform the lipid membranes
ETH Zurich researchers have been able to show why biological cells can take on such an astonishing variety of shapes: it has to do with how the number and strength of  local forces acting on the cell membrane from within. This knowledge feeds into the development of better minimal model systems and artificial cells.

Innovation - Computer Science - 30.09.2020
Our actual attention is now measurable
Our actual attention is now measurable
We want to make sure our phones no longer disturb us at the wrong moment. To achieve this, we first have to better understand where our attention lies when using smartphones. Computer scientists at ETH have now developed a system that records eye contact with the display in everyday situations for the first time.

Health - Pharmacology - 30.09.2020
New research from Ticino on the antibody response to SARS-CoV-2
New research from Ticino on the antibody response to SARS-CoV-2
After the announcement, in May, of the first results of serological tests carried out on healthcare personnel in Ticino [ www.usi.ch/en/feeds/13622 ], significant data on the antibody response to SARS-CoV-2 is now available, thanks to the analysis carried out - among others - by the Institute for Research in Biomedicine (IRB, affiliated to USI) and Humabs BioMed (subsidiary of Vir Biotechnology), in close collaboration with hospitals and COVID-19 centers in Ticino (Ente Ospedaliero Cantonale EOC and Clinica Luganese Moncucco).

Life Sciences - 29.09.2020
Understanding the effect of aging on the genome
Scientists have measured the molecular footprint that aging leaves on various mouse and human tissues. Using the data, they have identified likely regulators of this central process. Time may be our worst enemy, and aging its most powerful weapon. Our hair turns grey, our strength wanes, and a slew of age-related diseases represent what is happening at the cellular and molecular levels.

Materials Science - Environment - 29.09.2020
Filtering radioactive elements from water
Filtering radioactive elements from water
Some time ago, ETH researchers developed a filter membrane made out of whey proteins and activated carbon. In a new study, they now demonstrate just how efficient this membrane is at filtering radioactive elements from contaminated water. The nuclear accident in Fukushima remains etched into people's memories.

Life Sciences - 28.09.2020
Inside mitochondria and their fascinating genome
Inside mitochondria and their fascinating genome
Scientists have observed - for the first time in living cells - the way mitochondria distribute their transcriptome throughout the cell, and it involves RNA granules that turn out to be highly fluid. Mitochondria are present in all eukaryotic cells: in our cells, in mammalian cells, in the cells of plants and even of fungi.

Health - Pharmacology - 28.09.2020
New technique for ultrafast tumour therapy
New technique for ultrafast tumour therapy
For the first time, researchers at the Centre for Proton Therapy at the Paul Scherrer Institute PSI in Switzerland have tested ultrafast, high-dose irradiation with protons. This new, experimental FLASH technique could revolutionise radiation therapy for cancer and save patients many weeks of treatment.

Life Sciences - Health - 28.09.2020
Recording thousands of nerve cell impulses at high resolution
Recording thousands of nerve cell impulses at high resolution
Researchers have developed a new generation of microelectrode-array chips for measuring nerve impulses, enabling studies of how thousands of nerve cells interact with each other. For over 15 years, ETH Professor Andreas Hierlemann and his group have been developing microelectrode-array chips that can be used to precisely excite nerve cells in cell cultures and to measure electrical cell activity.

Environment - Life Sciences - 24.09.2020
Marine heatwaves are human made
Marine heatwaves are human made
Heatwaves in the world's oceans have become over 20 times more frequent due to human influence. This is what researchers from the Oeschger Centre for Climate Research at the University of Bern are now able to prove. Marine heatwaves destroy ecosystems and damage fisheries. A marine heatwave (ocean heatwave) is an extended period of time in which the water temperature in a particular ocean region is abnormally high.

Electroengineering - Life Sciences - 24.09.2020
Microelectronics shed light on neural behaviour
Microelectronics shed light on neural behaviour
Researchers at ETH Zurich - in collaboration with colleagues from EPFL in Lausanne and Harvard Medical School - have developed a system that allows them to optically stimulate individual nerve fibres in living mice. Through this process, they have demonstrated that the nervous system has a direct influence on the immune system.

Health - Social Sciences - 24.09.2020
Post-Lockdown: No Clustering of Coronavirus Infections in Zurich Schools prior to Summer Break
Post-Lockdown: No Clustering of Coronavirus Infections in Zurich Schools prior to Summer Break
The University of Zurich tested 2,500 schoolchildren in the Canton of Zurich to determine if they were infected during the period between the onset of the novel coronavirus and early June 2020. The preliminary results show that in the first stage of testing prior to the summer break, there was no clustering of coronavirus infections in schools in the Canton of Zurich.

Life Sciences - Health - 24.09.2020
Researchers develop new method to print tiny, functional organs
Researchers develop new method to print tiny, functional organs
Researchers at EPFL have developed an approach to print tiny tissues that look and function almost like their full-sized counterpart. Measuring just a few centimeters across, the mini-tissues could allow scientists to study biological processes-and even test new treatment approaches-in ways that were previously not possible.

Life Sciences - 24.09.2020
Histone degradation after DNA damage enhances repair
Histone degradation after DNA damage enhances repair
DNA damage can occur anywhere in the genome, but most DNA is wrapped around nucleosomes making it inaccessible to the repair machinery. Researchers from the Gasser group now show that DNA damage induces histone depletion, which increases the accessibility and flexibility of the DNA fiber and enhances the rate of homology search during repair by homologous recombination.

Physics - Materials Science - 23.09.2020
Nanostructures with a unique property
Nanostructures with a unique property
Nanoscale vortices known as skyrmions can be created in many magnetic materials. For the first time, researchers at PSI have managed to create and identify antiferromagnetic skyrmions with a unique property: critical elements inside them are arranged in opposing directions. Scientists have succeeded in visualising this phenomenon using neutron scattering.

Environment - 23.09.2020
More effective monitoring of air quality
More effective monitoring of air quality
Air quality in Switzerland has improved but is still not good enough. To continue the monitoring of air pollutants which has taken place for many years in Dübendorf, canton Zurich, federal government has opened a new station as part of its National Air Pollution Monitoring Network (NABEL). As well as showing whether air pollution control measures are working, it will also be used as a platform for research activities on new measuring equipment or new air pollutants.

Environment - Health - 23.09.2020
Viruses could become harder to kill
Viruses could become harder to kill
A recent EPFL study shows that pathogenic viruses may be able to develop resistance to warm temperatures and some types of disinfectant. That - combined with global warming and more frequent and longer heat waves - could make it even harder to keep them from spreading.  We could soon see the day when people have to think twice before taking a swim in lakes hitherto considered healthy.