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Results 81 - 100 of 316.


Computer Science - Mathematics - 03.05.2021
USI develops innovative system for better credit card fraud detection
USI develops innovative system for better credit card fraud detection
The use of credit cards and other cashless or digital payment methods has become the norm for consumers all over the globe, and the strong surge of online buying during the pandemic has further boosted this decade-long trend. However, behind the convenience of 'click and pay' there are also risks, such as fraud and related losses, which are mostly borne by the card companies.

Physics - Health - 03.05.2021
A physics perspective on wound healing
A physics perspective on wound healing
Scientists from the University of Geneva and UZH have used a statistical physics approach to identify the lengthscales of key intercellular interactions which govern tissue healing. In material physics understanding how systems interact across the interfaces separating them is of central interest. But can physical models clarify similar concepts in living systems, such as cells?

Environment - 30.04.2021
New hydropower dam design tested at EPFL
New hydropower dam design tested at EPFL
A team of EPFL engineers has completed proof-of-concept tests for the new Massongex-Bex-Rh˘ne hydropower dam. The tests, involving both a physical scale model and computer simulations, enabled the engineers to fine-tune their design. Engineers at EPFL's Platform of Hydraulic Constructions (PL-LCH) in Lausanne have just finished testing the design for the new Massongex-Bex-Rh˘ne (MBR) hydropower dam.

Life Sciences - Chemistry - 29.04.2021
How diet controls RNA maturation
How diet controls RNA maturation
Two UNIGE teams have discovered a new mechanism for regulating RNA maturation that depends on diet. Particularly sensitive to chemical modifications, messenger RNAs (mRNAs) are molecules responsible for transmitting the information encoded in our genome, allowing for the synthesis of proteins, which are necessary for the functioning of our cells.

Life Sciences - Health - 29.04.2021
A bacterial toxin facilitating chronic infection
A bacterial toxin facilitating chronic infection
Some pathogens persist in the body causing chronic infections. Researchers at the University of Basel have now discovered a mechanism of highly selective targeting of host proteins by a bacterial toxin that is critical for the bacteria to establish chronic infection. The study recently published in PNAS provides new insights into the activity and function of bacterial toxins.

Physics - Health - 28.04.2021
The shape of light changes our vision
The shape of light changes our vision
Scientists at the UNIGE have shown that the response of the retina to light depends not only on the intensity of the light perceived by the eye, but also on its temporal shape and the order in which the colours are organized. Vision is a complex process that has been successfully deciphered by many disciplines -physics, biochemistry, physiology, neurology, etc.-: The retina captures light, the optic nerve transmits electrical impulses to the brain, which ultimately generates the perception of an image.

Environment - 28.04.2021
Uncertainty of future Southern Ocean CO2 uptake cut in half
Uncertainty of future Southern Ocean CO2 uptake cut in half
The Southern Ocean dominates the oceanic uptake of human-made CO2. But how much carbon dioxide can it actually absorb in the future? This long-standing question remained unresolved as projections of different generation of climate models repeatedly showed a wide range of future Southern Ocean CO2 sink estimates.

Environment - Earth Sciences - 28.04.2021
Global glacier retreat has accelerated
Global glacier retreat has accelerated
An international research team including scientists from ETH Zurich has shown that almost all the world's glaciers are becoming thinner and losing mass' and that these changes are picking up pace. The team's analysis is the most comprehensive and accurate of its kind to date. Glaciers are a sensitive indicator of climate change - and one that can be easily observed.

Health - Life Sciences - 27.04.2021
The First Comprehensive Single-Cell Atlas of Human Teeth
The First Comprehensive Single-Cell Atlas of Human Teeth
Researchers at the University Zurich have mapped the first complete atlas of single cells that make up the human teeth. Their research shows that the composition of human dental pulp and periodontium vary greatly. Their findings open up new avenues for cell-based dental therapeutic approaches. During the last 30 years, medical and dental research has attracted a large number of scientists and practitioners working on aspects of high medical relevance that involve a combination of genetic and tissue regeneration approaches.

Mathematics - 26.04.2021
Theory and experiments to understand a contact between two filaments
Theory and experiments to understand a contact between two filaments
Mechanical engineers and mathematicians at EPFL have joined forces to gain a better understanding of the geometry and mechanics of two filaments in contact - as in the cases of knots and woven fabrics. Pedro Reis, head of EPFL's Flexible Structures Laboratory, and John Maddocks, head of EPFL's Laboratory for Computation and Visualization in Mathematics and Mechanics, have something in common: a fascination with ropes and knots.

Physics - 23.04.2021
Quantum steering for more precise measurements
Quantum systems consisting of several particles can be used to measure magnetic or electric fields more precisely. A young physicist at the University of Basel has now proposed a new scheme for such measurements that uses a particular kind of correlation between quantum particles. In quantum information, the fictitious agents Alice and Bob are often used to illustrate complex communication tasks.

Health - Physics - 22.04.2021
Eliminating resistant bacteria with nanoparticles
Eliminating resistant bacteria with nanoparticles
Novel nanoparticles developed by researchers at ETH Zurich and Empa detect multi-resistant bacteria hiding in body cells and kill them. The scientists' goal is to develop an antibacterial agent that is effective where conventional antibiotics remain ineffective. In the arms race "mankind against bacteria", bacteria are currently ahead of us.

Pharmacology - Health - 22.04.2021
Stimulating the immune system with sponges made of silica
Stimulating the immune system with sponges made of silica
Silica nanoparticles developed by a team from the UNIGE and Ludwig-Maximilian University of Munich have significantly increased the effectiveness and precision of immunotherapies. Immunotherapies are increasingly used to fight cancer and aim to stimulate the immune system to defend itself by destroying tumour cells.

Life Sciences - 22.04.2021
"Molecular Tomographer" algorithm maps gene expression in space
Scientists have developed an algorithm that can work out the spatial pattern of gene expression inside the body without the need for microscopes and complicated equipment used currently. As we accumulate more and more gene-sequencing information, cell-type databases are growing in both size and complexity.

Physics - Materials Science - 22.04.2021
Uniquely sharp X-ray view
Researchers at the Paul Scherrer Institute PSI have succeeded for the first time in looking inside materials using the method of transient grating spectroscopy with ultrafast X-rays at SwissFEL. The experiment at PSI is a milestone in observing processes in the world of atoms. The researchers are publishing their research results today .

Physics - Computer Science - 22.04.2021
New tech builds ultralow-loss integrated photonic circuits
New tech builds ultralow-loss integrated photonic circuits
Scientists have developed ultralow-loss silicon nitride integrated circuits that are central for many photonic devices, such as chip-scale frequency combs, narrow-linewidth lasers, coherent LiDAR, and neuromorphic computing. Encoding information into light, and transmitting it through optical fibers lies at the core of optical communications.

Life Sciences - Environment - 21.04.2021
A portable device for taking DNA measurements in the field
A portable device for taking DNA measurements in the field
GenoRobotics is an interdisciplinary EPFL project to develop a portable, automated device for extracting and sequencing DNA in any type of environment. The project team hopes their invention will make it easier and faster to map our planet's biodiversity. Preserving the Earth's biodiversity is a crucial challenge.

Health - Pharmacology - 21.04.2021
Targeted therapies thanks to biomedical informatics
Targeted therapies thanks to biomedical informatics
The new "LOOP Zurich - Medical Research Center" promotes patient-focused therapies - for example in oncology and neuro-rehabilitation. To achieve its goals, the center brings together specialist knowledge in the fields of biomedicine, clinical research and bioinformatics from the University of Zurich, ETH Zurich as well as Zurich's four university hospitals.

Psychology - 20.04.2021
Our attention is captured by eye-glance
Our attention is captured by eye-glance
Scientists have shown that when we look at each other, our attention is focused on the social interaction, disrupting our perception of time. Eyes play an important role in social communication by expressing the intentions of our interlocutors, and even more so in times of pandemic when half of the face is hidden.

Materials Science - Chemistry - 20.04.2021
Perovskite solar cells exceed 25% power-conversion efficiency
Perovskite solar cells exceed 25% power-conversion efficiency
Physical chemists and chemical engineers led by EPFL have used a chemical tweak to push the power-conversion efficiency and operational stability of perovskite solar cells to 25.6% and at least 450 hours respectively. Perovskites are hybrid compounds that can be made from metal halides and organic constituents.