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Results 41 - 60 of 76.
Present-day geodynamics of the Western Alps: new insights from earthquake mechanisms
Publication of LGL-TPE in the journal Solid Earth on July 21, 2021. Due to the low to moderate seismicity of the European Western Alps, few focal mechanisms are available in this region to this day, and the corresponding current seismic stress and strain fields remain partly elusive. The development of dense seismic networks in past decades now provides a substantial number of seismic records in the 0-5 magnitude range.
Publication of LGL-TPE in the journal Solid Earth on July 21, 2021. Due to the low to moderate seismicity of the European Western Alps, few focal mechanisms are available in this region to this day, and the corresponding current seismic stress and strain fields remain partly elusive. The development of dense seismic networks in past decades now provides a substantial number of seismic records in the 0-5 magnitude range.
The European Alps is certainly one of the most scrutinized mountain range in the world, as it forms a true open-air laboratory showing how climate change affects biodiversity. Although many studies have independently demonstrated the impact of climate change in the Alps on either the seasonal activity (i.e.
The discovery of the earliest human burial site yet found in Africa, by an international team including several CNRS researchers 1 , has just been announced in the journal Nature . At Panga ya Saidi, in Kenya, north of Mombasa, the body of a three-year-old, dubbed Mtoto (Swahili for 'child') by the researchers, was deposited and buried in an excavated pit approximately 78,000 years ago.
Structural and molecular basis of cross-seeding barriers in amyloids
Publication of CRMN in the journal PNAS on January 5, 2021. Neurodegenerative disorders are frequently associated with -sheet-rich amyloid deposits. Amyloid-forming proteins can aggregate under different structural conformations known as strains, which can exhibit a prion-like behavior and distinct pathophenotypes.
Publication of CRMN in the journal PNAS on January 5, 2021. Neurodegenerative disorders are frequently associated with -sheet-rich amyloid deposits. Amyloid-forming proteins can aggregate under different structural conformations known as strains, which can exhibit a prion-like behavior and distinct pathophenotypes.
The Chauvet Cave, which lies by the entrance to the Gorges of the Ardèche, is home to the world's oldest cave paintings, dating back 36,000 years. Their state of preservation and aesthetic qualities earned them a spot on the World Heritage List in 2014, 20 years after their discovery. The location of the cavern-surrounded by a remarkable landscape, next to the Pont d'Arc natural archway-raises the question of whether the people who executed these artworks looked and walked out upon the same landscape as today.
" It is machination, it is deception ," said the Director General of the Berlin Royal Museums in his defence when criticized for buying a fake. Wilhelm Bode did not budge an inch: the sculpture he acquired in 1909 was an as yet unknown production of the great Renaissance master, Leonardo da Vinci. After one hundred years and numerous controversies, a group of scientists led by a CNRS researcher 1 has just proven him wrong once and for all.
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.
A poorly mixed mantle transition zone and its thermal state inferred from seismic waves
Study by the LGL-TPE published Geoscience on November 4, 2021. The abrupt changes in mineralogical properties across the Earth's mantle transition zone substantially impact convection and thermochemical fluxes between the upper and lower mantle. While the 410-km discontinuity at the top of the mantle transition zone is detected with all types of seismic waves, the 660-km boundary is mostly invisible to underside P-wave reflections (P660P).
Study by the LGL-TPE published Geoscience on November 4, 2021. The abrupt changes in mineralogical properties across the Earth's mantle transition zone substantially impact convection and thermochemical fluxes between the upper and lower mantle. While the 410-km discontinuity at the top of the mantle transition zone is detected with all types of seismic waves, the 660-km boundary is mostly invisible to underside P-wave reflections (P660P).
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 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).
Many Sunscreens Contain a Carcinogenic Compound
An organic sunscreen filter frequently used in sunscreens and anti-aging creams, octocrylene degrades within the bottles themselves into a known carcinogenic and endocrine disrupting compound: benzophenone. This is the result of a groundbreaking study conducted by researchers from the Laboratory of Biodiversity and Microbial Biotechnology of the Oceanological Observatory of Banyuls-sur-Mer (Sorbonne University/CNRS) in collaboration with their American colleagues, published in the journal Chemical Research in Toxicology on March 8, 2021.
An organic sunscreen filter frequently used in sunscreens and anti-aging creams, octocrylene degrades within the bottles themselves into a known carcinogenic and endocrine disrupting compound: benzophenone. This is the result of a groundbreaking study conducted by researchers from the Laboratory of Biodiversity and Microbial Biotechnology of the Oceanological Observatory of Banyuls-sur-Mer (Sorbonne University/CNRS) in collaboration with their American colleagues, published in the journal Chemical Research in Toxicology on March 8, 2021.
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.
