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Results 61 - 77 of 77.


Health - Mathematics - 04.03.2021
COVID-19 Screening: A New Model for Assessing the Efficiency of Group Testing
COVID-19 Screening: A New Model for Assessing the Efficiency of Group Testing
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.

Environment - 02.03.2021
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.

Architecture - 22.02.2021
CEA-Leti & Dolphin Design Report FD-SOI Breakthrough that Boosts Operating Frequency by 450% and Reduces Power Consumption by 30%
CEA-Leti & Dolphin Design Report FD-SOI Breakthrough that Boosts Operating Frequency by 450% and Reduces Power Consumption by 30%
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. 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.

Astronomy / Space - Physics - 18.02.2021
The Mars2020 Mission - Perseverance Rover Landing
Follow along live as the Perseverance rover lands on Mars, thanks to the SuperCam instrument on board which was co-developed by three research laboratories under the supervision of Sorbonne University. On Thursday, February 18, 2021, a little before 10:00 pm, the Perseverance rover will descend on Mars at more than 21,000 km/h.

Life Sciences - 17.02.2021
Mystery of four-horned goats and sheep finally solved
Mystery of four-horned goats and sheep finally solved
In meadows, we can sometimes see sheep and goats with four horns instead of two. Some breeds, like the Manx Loaghtan from the Isle of Man, are famous for their unusual headgear. A team of researchers from INRAE, the University of Geneva, the Polytechnic School of Lausanne, the French National Union of Cooperatives for Animal Insemination (ALLICE), as well as from several museums and breeding associations, has been investigating the genetic causes of this curious morphological phenomenon.

Health - Environment - 11.02.2021
Heat islands and lack of running water promote dengue fever in Delhi, India
Heat islands and lack of running water promote dengue fever in Delhi, India
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.

History / Archeology - 10.02.2021
Ancient seashell resonates after 18,000 years
Ancient seashell resonates after 18,000 years
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.

Computer Science - 08.02.2021
Recognizing liars from the sound of their voice?
Recognizing liars from the sound of their voice?
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.

Physics - 08.02.2021
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.

Astronomy / Space - 04.02.2021
The CNRS welcomes France’s commitment to the construction and operation of the largest radio astronomy instrument ever built
The SKA Observatory will design and build the most sensitive radio astronomy instrument ever created, operating over an unmatched radio-wave range. It is expected to study the formation of the very first stars and galaxies shortly after the Big Bang. SKA will produce a data stream that exceeds today's global internet traffic and Facebook's current storage needs.

Physics - 04.02.2021
Team Paves the Way for Massive Integration of Qubits, Critical for Achieving Quantum Supremacy
Team Paves the Way for Massive Integration of Qubits, Critical for Achieving Quantum Supremacy
GRENOBLE, France - Feb. CEA-Leti scientists have opened a pathway to large-scale integration of Si-spin qubits using existing flip-chip processes with die-to-wafer 3D-interconnect technologies developed in-house. In a paper presented during the 2020 Electronics System-Integration Technology Conference (ESTC), the team reported preliminary electrical characterizations at cryogenic temperatures of chip assemblies made with 3D interconnects such as SnAg microbumps and direct Cu bonded pads from Cu/SiO 2 hybrid bonding process.

Astronomy / Space - 02.02.2021
Exoplanets: SPIRou carries out first ever measurement of a very young planet's density
Exoplanets: SPIRou carries out first ever measurement of a very young planet’s density
A research team led by scientists from IRAP (CNRS/CNES/Université Toulouse III - Paul Sabatier) and IPAG (CNRS/UGA) 1 has for the first time measured the internal density of a very young exoplanet orbiting a newly formed, extremely active star. Despite the 'noise' generated by the star's activity, they successfully achieved this using the Canada-France-Hawaii Telescope (CFHT)'s planet hunting instrument SPIRou.

History / Archeology - Environment - 27.01.2021
History of the Champagne vineyards revealed
History of the Champagne vineyards revealed
Although the reputation of Champagne is well established, the history of Champagne wines and vineyards is poorly documented. However, a research team led by scientists from the CNRS and the Université de Montpellier at the Institut des sciences de l'évolution de Montpellier 1 has just lifted the veil on this history by analysing the archaeological grape seeds from excavations carried out in Troyes and Reims.

Innovation - 26.01.2021
CEA-Leti Reports Breakthrough High-Performance Gyroscope For Automotive, Aeronautic and Industrial Applications
World's First NEMS-Based Gyroscope Operates at 50 kHz, "Beyond Frequencies Of Vibrations Common" in Severe Environments GRENOBLE, France - Jan. CEA-Leti scientists, working with researchers at Politecnico di Milano, have developed the world's first high-performance gyroscope for operating in severe environments, such as industrial and aeronautic equipment and automobiles.

Astronomy / Space - 26.01.2021
A titanic interstellar medium ejection from a massive starburst galaxy at redshift 1.4
A titanic interstellar medium ejection from a massive starburst galaxy at redshift 1.4
Skip to main page Skip to contain Skip to sitemap Skip to search Skip to accessibility Skip to contact Skip to legal notice Publication of CRAL in Nature Astronomy on January 11, 2021. Feedback-driven winds from star formation or active galactic nuclei might be a relevant channel for the abrupt quenching of star formation in massive galaxies.

Computer Science - 19.01.2021
CEA-Leti Reports Machine-Learning Breakthrough That Opens Way to Edge Learning
Article in Nature Electronics Details Method that Takes Advantage of RRAM Non- Idealities To Create Intelligent Systems that Have Potential Medical-Diagnostic Applications -GRENOBLE, France - Jan. CEA-Leti scientists have demonstrated a machine-learning technique exploiting what have been previously considered as "non-ideal" traits of resistive-RAM (RRAM) devices, overcoming barriers to developing RRAM-based edge-learning systems.

Astronomy / Space - 18.01.2021
Saturn's tilt caused by its moons
Saturn’s tilt caused by its moons
Two scientists from CNRS and Sorbonne University working at the Institute of Celestial Mechanics and Ephemeris Calculation (Paris Observatory - PSL/CNRS) have just shown that the influence of Saturn's satellites can explain the tilt of the rotation axis of the gas giant. Rather like David versus Goliath, it appears that Saturn's tilt may in fact be caused by its moons.