Events

Mois : January -

January

13/01/2017 - Crystallography: Electron diffraction locates hydrogen atoms

Diffraction-based analytical methods are widely used in laboratories, but they struggle to study samples that are smaller than a micrometer in size. Researchers from the Laboratoire de cristallographie et sciences des matériaux (CNRS/Ensicaen/Unicaen), the Laboratoire catalyse et spectrochimie (CNRS/Ensicaen/Unicaen)1, and the Academy of Sciences of the Czech Republic have nevertheless been successful in using electron diffraction to reveal the structure of nanocrystals2. Their method is so sensitive that it has even located the position of hydrogen atoms for the first time, which is crucial in accessing the morphology of the molecules or the size of cavities in porous materials. This research, published on January 13, 2017, has made the front page of the journal Science. more...

11/01/2017 - Baboons produce vocalizations comparable to vowels

Baboons produce vocalizations comparable to vowels. This is what has been demonstrated by an international team coordinated by researchers from the Gipsa-Lab (CNRS/Grenoble INP/Grenoble Alpes University), the Laboratory of Cognitive Psychology (CNRS/AMU), and the Laboratory of Anatomy at the University of Montpellier, using acoustic analyses of vocalizations coupled with an anatomical study of the tongue muscles and the modeling of the acoustic potential of the vocal tract in monkeys. Published in PLOS ONE on January 11, 2017, the data confirm that baboons are capable of producing at least five vocalizations with the properties of vowels, in spite of their high larynx, and that they are capable of combining them when they communicate with their partners. The vocalizations of baboons thus point to a system of speech among non-human primates. more...

09/01/2017 - Fast fine art : 19th century painting tricks revealed

To paint quickly while creating exceptional texture and volume effects, J. M. W. Turner and other English artists of his generation relied on the development of innovative gels. All the rage in the 19th century—and still in use today—these compounds alter the properties of the oil paints they are combined with. CNRS, UPMC, and Collège de France1 researchers have finally learned the chemical secrets behind these mixtures. Lead—in its acetate form—is essential for the formation of the gels. The team's findings are published in the 9 January 2017 issue of Angewandte Chemie International Edition. more...

02/01/2017 - Nanohyperthermia softens tumors to improve treatment

The mechanical resistance of tumors and collateral damage of standard treatments often hinder efforts to defeat cancers. However, a team of researchers from the CNRS, the French National Institute of Health and Medical Research (INSERM), Paris Descartes University, and Paris Diderot University has successfully softened malignant tumors by heating them. This method, called nanohyperthermia, makes the tumors more vulnerable to therapeutic agents. First, carbon nanotubes (CNTs) are directly injected into the tumors. Then, laser irradiation activates the nanotubes, while the surrounding healthy tissue remains intact. The team's work was published on January 1 in Theranostics. more...

27/01/2015 - Film: Gérard Berry, A Programming Pioneer

This film draws the portrait of Gérard Berry, computer scientist, awarded the 2014 CNRS Gold Medal. Gérard Berry, holder of the first chair in computer science at the Collège de France since 2012. From the formal processing of programming languages to the computer-assisted design of integrated circuits and parallel real-time programming, Berry's achievements have led to major advances in information technology, finding myriad applications in the daily lives of computer users the world over. more...

27/01/2015 - The January issue of CNRS International Magazine is now available

Scientific fraud, long downplayed or even denied, is now taken very seriously and has prompted a global response at all levels of research. Our special report investigates the causes, extent, and consequences of this shameful dysfunction of science, as well as the measures being implemented to eradicate it. Also in this issue, Rosetta’s close encounter with a comet; a novel method to predict solar flares; how letter recognition repurposes neural circuitry used to detect threats; 2014 CNRS Gold Medalist Gérard Berry; philosopher Barbara Cassin emphasizes the importance of linguistic diversity; the 1000 start-ups generated by CNRS research; understanding Africa’s next challenges; 60 years of CERN; why mangroves are an asset to treasure, and much more. more...

27/01/2015 - Snapshot: Scanning a Temple

In 2013, researchers from the MAP1 laboratory were able to render a 3D model of the Tholos of Delphi, a one-of-its-kind Greek temple at the base of Mount Parnassus... more...

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