News in Brief
Social Sciences - Apr 7
Mobiliscope: hour-by-hour population and social mixing in 55 French and Canadian city regions
Mobiliscope: hour-by-hour population and social mixing in 55 French and Canadian city regions
Astronomy - Apr 1
New joint French-Japanese laboratory in Tokyo for physics at the largest and smallest scales
New joint French-Japanese laboratory in Tokyo for physics at the largest and smallest scales
Physics - Mar 30
Thermodynamics of interfaces extended to nanoscales by introducing integral and differential surface tensions
Thermodynamics of interfaces extended to nanoscales by introducing integral and differential surface tensions
Mechanical Engineering - Mar 8
CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs)
CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs)
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Health - Apr 13
Astronomy - Apr 8
Every year, our planet encounters dust from comets 1 and asteroid 2 . These interplanetary dust particles pass through our atmosphere and give rise to shooting stars.
Physics - Apr 7
Muons, particles akin to electrons, have kept physicists' heads spinning for more than a decade, because an experimental measurement of their magnetic properties 1 disagrees from theory.
Physics - Apr 7
Muons, particles akin to electrons, have kept physicists' heads spinning for more than a decade, because an experimental measurement of their magnetic properties 1 disagrees with theory.
Life Sciences - Apr 6
The Mfd protein repairs bacterial DNA, but can also, to scientists' surprise, promote mutation. Bacterial mutations can lead to antibiotic resistance.
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Results 1 - 20 of 49.
Lensless Imaging System Affirms Phage Therapy's Value in Treating Serious Infection, Tracks Phage Resistance and Could Easily Be Implemented in Compact Devices at Phage Labs GRENOBLE, France - April 13, 2021 - A team of French and Swiss scientists has demonstrated a lensless imaging technique that could easily be implemented in cost-effective and compact devices in phage laboratories to accelerate phage-therapy diagnosis.
Every year, our planet encounters dust from comets 1 and asteroid 2 . These interplanetary dust particles pass through our atmosphere and give rise to shooting stars. Some of them reach the ground in the form of micrometeorites. An international program 3 conducted for nearly 20 years by scientists from the CNRS, the Université Paris-Saclay and the National museum of natural history 4 with the support of the French polar institute, has determined that 5,200 tons per year of these micrometeorites reach the ground.
Muons, particles akin to electrons, have kept physicists' heads spinning for more than a decade, because an experimental measurement of their magnetic properties 1 disagrees with theory. Could this be caused by unknown particles or forces? A new theoretical calculation of these properties reduces the discrepancy with the experimental measurement.
Muons, particles akin to electrons, have kept physicists' heads spinning for more than a decade, because an experimental measurement of their magnetic properties 1 disagrees from theory. Could this be caused by unknown particles or forces? A new theoretical calculation of this parameter, involving CNRS physicists and published , has reduced the discrepancy with the experimental measurement.
The Mfd protein repairs bacterial DNA, but can also, to scientists' surprise, promote mutation. Bacterial mutations can lead to antibiotic resistance. Understanding this second "role" of the Mfd protein opens up opportunities for combating antibiotic resistance, and also the resistance of tumours to anti-cancer drugs and therapies.
A brain signature that predicts vulnerability to addiction
A team of neurobiologists at the Institut de Neurosciences de la Timone (CNRS/Aix-Marseille Université) has just shown that within a population of rats it can predict which will become cocaine addicts. One of the criteria for addiction in rats is the compulsive search for a drug despite its negative consequences.
A team of neurobiologists at the Institut de Neurosciences de la Timone (CNRS/Aix-Marseille Université) has just shown that within a population of rats it can predict which will become cocaine addicts. One of the criteria for addiction in rats is the compulsive search for a drug despite its negative consequences.
Scientists from the CNRS, the IRD, and the Muséum National d'Histoire Naturelle have just released the most comprehensive estimate to date of the financial toll of invasive species: nearly $1.3 trillion over four decades. Published in Nature (31 March 2021), their findings are based on the InvaCost database, which is financed by the BNP Paribas Foundation and the Paris-Saclay University Foundation's AXA Chair of Invasion Biology.
Within the EHT collaboration, the CNRS and IRAM participated in the creation of a new image of the black hole in the M87 galaxy. Produced in so-called "polarized" light, this image makes it possible to observe the magnetic field and to better understand the physics around black holes. The Event Horizon Telescope (EHT) collaboration, who produced the first ever image of a black hole , has revealed today a new view of the massive object at the centre of the M87 galaxy: how it looks in polarised light.
The ocean is dynamic in nature, playing a crucial role as a planetary thermostat that buffer global warming. However, in response to climate change, the ocean has generally become stabler over the past 50 years. Six times stabler, in fact, than previously estimated-as shown by a new study that researchers from the CNRS, Sorbonne University, and IFREMER have conducted within the scope of an international collaboration.
The MUSE instrument on the Very Large Telescope has captured an image of several filaments in the early Universe... ... revealing the unexpected presence of billions of dwarf galaxies in the filaments Although the filaments of gas in which galaxies are born have long been predicted by cosmological models, we have so far had no real images of such objects.
Presentations at Photonics West 2021 Show How Early-Stage Imaging System's Flexibility Can Be Applied Broadly in Medical Field GRENOBLE, France - March 18, 2021 - CEA-Leti scientists have developed a lensless, infrared spectral-imaging system for medical diagnostics. The first application is cancer detection in the tissue section and the second is the identification and discrimination of microorganisms, such as bacteria.
The fossil of an unusual shark specimen reminiscent of manta rays sheds light on morphological diversity in Cretaceous sharks. This plankton feeder was discovered in Mexico and analysed by an international team of palaeontologists led by a CNRS researcher from Géosciences Rennes 1 (CNRS/University of Rennes 1).
From Microscopic Holograms to New Optical Concepts and Design, the Institute Unveils Key Results Towards Integrated Retinal-Projection Displays -GRENOBLE, France - March 11, 2021 - Expanding on its previous advances in integrated optics and silicon photonics, CEA-Leti presented four related papers at Photonics West 2021 Digital Forum that show key steps toward improved AR capabilities with retinal projection.
How best to evaluate the performance of a group testing strategy for the SARS-CoV-2 virus, which involves pooling samples from multiple individuals in order to conduct a single RT-PCR test on the whole group? To do precisely that, scientists from the CNRS, l'université Grenoble Alpes, and l'université Sorbonne Paris Nord 1 have developed a model that evaluates the efficiency of such tests.
Ecology: The Scientific Literature Dominated by Men and a Handful of Countries
Publishing in peer-reviewed scientific journals is crucial for the development of a researcher's career. The scientists that publish the most often in the most prestigious journals generally acquire greater renown, as well as higher responsibilities. However, a team involving two CNRS researchers 1 has just shown that the vast majority of scientific articles in the fields of ecology and conservation biology are authored by men working in a few Western countries.
Publishing in peer-reviewed scientific journals is crucial for the development of a researcher's career. The scientists that publish the most often in the most prestigious journals generally acquire greater renown, as well as higher responsibilities. However, a team involving two CNRS researchers 1 has just shown that the vast majority of scientific articles in the fields of ecology and conservation biology are authored by men working in a few Western countries.
J oin t Paper Presented at ISSCC 2021 Shows How New Adaptive Back-Biasing Technique O vercomes Integration Limits in Chip Design Flows CEA-Leti & Dolphin Design Report FD-SOI Breakthrough that Boosts Operating Frequency by 450% and Reduces Power Consumption by 30% GRENOBLE, France - Feb. 22, 2021 - CEA-Leti and Dolphin Design have developed an adaptive back-biasing (ABB) architecture for FD-SOI chips that can be seamlessly integrated in the digital design flow with industrial-grade qualification, overcoming integration drawbacks of existing ABB techniques.
What if more inclusive urban planning for poor populations was key to fighting dengue fever? This is what researchers from the CNRS, the Institut Pasteur and the Indian Council of Medical Research 1 have demonstrated using a geographical approach applied to the greater city of Delhi (India). Their study is published in the journal PLOS Neglected Tropical Disease on 11 February 2021.
A + A Almost 90 years after its discovery, a large shell from the ornate Marsoulas Cave in the Pyrenees has been studied by a multidisciplinary team from the CNRS, the Muséum de Toulouse, the Université Toulouse - Jean Jaurès and the Musée du quai Branly - Jacques-Chirac 1 : it is believed to be the oldest wind instrument of its type.
Faster speech rate, greater intensity in the middle of the word, and falling pitch at the end of the word: that is the prosody 1 to adopt if one wants to come across as reliable and honest to one's listeners. Scientists from the Science and Technology for Music and Sound laboratory (CNRS/Ircam/Sorbonne Université/Ministère de la Culture) 2 and the Perceptual Systems Laboratory (CNRS/ENS PSL) have conducted a series of experiments 3 to understand how we decide, based on the voice, whether a speaker is honest and confident, or on the contrary dishonest and uncertain.
The quantum advantage: a novel demonstration
A + A Is a quantum machine really more efficient than a conventional machine for performing calculations? Demonstrating this 'advantage' experimentally is particularly complex and a major research challenge around the world 1. Scientists from the CNRS 2 , the University of Edinburgh (Scotland) and the QC Ware, Corp., (France and USA) have just proved that a quantum machine can perform a given verification task in seconds when the same exercise would take a time equivalent to the age of the universe for a conventional computer.
A + A Is a quantum machine really more efficient than a conventional machine for performing calculations? Demonstrating this 'advantage' experimentally is particularly complex and a major research challenge around the world 1. Scientists from the CNRS 2 , the University of Edinburgh (Scotland) and the QC Ware, Corp., (France and USA) have just proved that a quantum machine can perform a given verification task in seconds when the same exercise would take a time equivalent to the age of the universe for a conventional computer.
News from the Lab is a selection of science news that are significant or interesting for a broad readership.
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News in Brief
Social Sciences - Apr 7
Mobiliscope: hour-by-hour population and social mixing in 55 French and Canadian city regions
Mobiliscope: hour-by-hour population and social mixing in 55 French and Canadian city regions
Astronomy - Apr 1
New joint French-Japanese laboratory in Tokyo for physics at the largest and smallest scales
New joint French-Japanese laboratory in Tokyo for physics at the largest and smallest scales
Physics - Mar 30
Thermodynamics of interfaces extended to nanoscales by introducing integral and differential surface tensions
Thermodynamics of interfaces extended to nanoscales by introducing integral and differential surface tensions
Mechanical Engineering - Mar 8
CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs)
CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs)