CEA Paris-Saclay - Etablissement de Saclay

Microflow: Thermal changes suggest a phonon-like liquid transport

We knew that classical thermal assumptions, such as Fourier’s law, were no longer valid at very small scales. Here, we highlight thermal effects occurring in the absence of a heat source and at a much larger scale (sub-millimeter scale) during the flow of Newtonian fluids such as...

Individualized Structural Brain Deviations in Bipolar I Disorder: a Normative Modeling Study of 4 660 ENIGMA Participants

Abstract Bipolar disorder (BD) is a prevalent psychiatric condition characterized by marked clinical and neuroanatomical heterogeneity. Prior neuroimaging studies have used case-control comparisons yielding small to moderate effect sizes for group differences. Large and diverse s...

GW reduced density matrix from iterated linearized Dyson equation

Iterating the Dyson equation with the static part of the self-energy leads to a concise and possibly improved expression of the one-body reduced density matrix from any self-energy approximation. Here, we apply the procedure to Hedin's GW approximation. The non-iterated GW-based...

The large Hadron electron collider as a bridge project for CERN

Abstract The LHeC is the project for delivering electron-nucleon collisions at CERN using the HL-LHC beams. An Energy Recovery Linac in racetrack configuration will provide 50 GeV electrons to achieve centre-of-mass energies around 1 TeV/nucleon and instantaneous luminosities aro...

Altermagnetism revealed by polarized neutrons in MnF 2

Altermagnets are compensated magnets with symmetry-enforced spin split bands. Direct spectroscopic evidence for their existence has been reported in several materials. For example, inelastic neutron scattering (INS) has recently been used to witness a splitting of magnon bands in...

The OpenSat4Weather dataset: Ku-band satellite link data for precipitation monitoring

Abstract. The TV-SAT signals received by the ground antennas of Satellite Microwave Links (SMLs) can be opportunistically used for identifying and quantifying precipitation. Hence, SMLs can serve as low-cost rainfall sensors complementary to conventional instruments. However, a s...

Novel geometrical test of cosmological expansion from photometric data

In tomographic cosmic-shear observations, the Bernardeau, Nishimichi, Taruya (BNT) transform allows us to build weak lensing transformed maps for which the contribution from low-redshift lenses is nulled. As this transformation depends specifically on the expansion rate of the Un...

The Composite Spectrum of QSO Absorption Line Systems in DESI DR2

Abstract We present details regarding a composite spectrum of quasar (QSO) absorption line systems. In this composite spectrum, we identify more than 70 absorption lines and observe oxygen and hydrogen emission features at a higher signal-to-noise ratio than any previous study. A...

Toward the Use of Real‐World Data for Regulatory and HTA Decision‐Making: Experiences and Recommendations from Six EU ‐Funded Projects

Real-world data are increasingly important for regulatory and health technology assessment decision-making, yet their effective use across Europe remains limited by technical, methodological, regulatory, and societal challenges. Drawing on the experiences of six Horizon Europe pr...

Measurements of the production of W$$^{\pm }$$ and Z$$^0$$ bosons in pp collisions at $$\sqrt{s} = 13$$ TeV

Abstract Measurements of the production of the W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons at midrapidity in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV with ALICE at the Large Hadron Collider (LHC) are presented. The W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons are detected via their (di)e...

14,028 Nights with John Danziger under the veil of SN 1987A

This is a summary of the observations of the supernova SN 1987A conducted in infrared by John Danziger and myself from February 1987 until today. I recall the main results obtained in the past and present the latest results obtained recently with the JWST.

14,028 Nights with John Danziger under the veil of SN 1987A

This is a summary of the observations of the supernova SN 1987A conducted in infrared by John Danziger and myself from February 1987 until today. I recall the main results obtained in the past and present the latest results obtained recently with the JWST.

Challenging the predictive coarse-to-fine hypothesis in emotional face perception

Introduction Predictive processing (PP) accounts conceptualize perception as an interaction between top-down predictions and bottom-up sensory inputs. In the visual domain, low spatial frequencies (LSF) convey coarse information, supporting early predictions, refined by high spat...