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Emotional words evoke region- and valence-specific patterns of concurrent neuromodulator release in human thalamus and cortex.
Cell Rep
January 2025
School of Neuroscience, Virginia Tech, Blacksburg, VA 24060, USA. Electronic address:
Words represent a uniquely human information channel-humans use words to express thoughts and feelings and to assign emotional valence to experience. Work from model organisms suggests that valence assignments are carried out in part by the neuromodulators dopamine, serotonin, and norepinephrine. Here, we ask whether valence signaling by these neuromodulators extends to word semantics in humans by measuring sub-second neuromodulator dynamics in the thalamus (N = 13) and anterior cingulate cortex (N = 6) of individuals evaluating positive, negative, and neutrally valenced words.
View Article and Find Full Text PDFStructure of the Se Isomers─An Ab Initio Study.
J Phys Chem A
January 2025
Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China.
This study investigates the equilibrium geometries of four different Se isomers using the coupled cluster single and double perturbative (CCSD(T)) method, extrapolating to the complete basis sets. The ground-state geometry of the Se isomer with the C structure (2.8715 Å, 2.
View Article and Find Full Text PDFTheoretical Investigations on the Molecular Magnetic Behavior of Actinide Molecules [AnPc] (An = U, Cf): Prediction of the High Magnetic Blocking Barrier and Magnetic Blocking Temperature in [CfPc].
J Phys Chem A
January 2025
School of Physical Science and Technology, Southwest University, Chongqing 400715, China.
Searching for single-molecule magnets (SMM) with large effective blocking barriers, long relaxation times, and high magnetic blocking temperatures is vitally important not only for the fundamental research of magnetism at the molecular level but also for the realization of new-generation magnetic memory unit. Actinides (An) atoms possess extremely strong spin-orbit coupling (SOC) due to their 5 orbitals, and their ground multiplets are largely split into several sublevels because of the strong interplay between the SOC of An atoms and the crystal field (CF) formed by ligand atoms. Compared to TM-based SMMs, more dispersed energy level widths of An-based SMMs will give a larger total zero field splitting (ZFS) and thus provide a necessary condition to derive a higher .
View Article and Find Full Text PDFSpin polarization detection via chirality-induced tunnelling currents in indium selenide.
Nat Mater
January 2025
Institute of Electrical and Microengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Chirality, a basic property of symmetry breaking, is crucial for fields such as biology and physics. Recent advances in the study of chiral systems have stimulated interest in the discovery of symmetry-breaking states that enable exotic phenomena such as spontaneous gyrotropic order and superconductivity. Here we examine the interaction between light chirality and electron spins in indium selenide and study the effect of magnetic field on emerging tunnelling photocurrents at the Van Hove singularity.
View Article and Find Full Text PDFDynamically Stable Cu0Cuδ+ Pair Sites Based on In Situ-Exsolved Cu Nanoclusters on CaCO3 for Efficient CO2 Electroreduction.
Angew Chem Int Ed Engl
January 2025
National University of Singapore, Chemistry, 3 Science Drive 3, Singapore 117543, 117543, Singapore, SINGAPORE.
Copper-based catalysts are the choice for producing multi-carbon products (C2+) during CO2 electroreduction (CO2RR), where the Cu0Cuδ+ pair sites are proposed to be synergistic hotspots for C-C coupling. Maintaining their dynamic stability requires precise control over electron affinity and anion vacancy formation energy, posing significant challenges. Here, we present an in-situ reconstruction strategy to create dynamically stable Cu0Cu0.
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