Results 91 to 100 of about 216,989 (292)

Non-variable cosmologically distant gamma-ray emitters as an imprint of propagation of ultra-high-energy protons

, 2011
The acceleration cites of ultra-high-energy (UHE) protons can be traced by the footprint left by these particles propagating through cosmic microwave background (CMB) radiation.
A. Yu. Prosekin, Aharonian, Aharonian, Aharonian, Ando, Atwood, Blasi, Dermer, Dolag, Dolag, Essey, F. A. Aharonian, Franceschini, Gabici, Kelner, Kotera, Lehmer, Neronov, Neronov, Romano, Ryu, S. R. Kelner, Sigl, Tavecchio, Taylor   +24 more
core   +1 more source

Designed Liquid Crystalline Nanoassemblies From Clinically Validated Polyunsaturated Lipids for Combined Antioxidant, Anti‐Apoptotic, and Neurotrophic Treatments

Advanced Healthcare Materials, EarlyView.
Ionizable lipid nanoparticles target multiple pathological pathways in neurodegeneration. The designed self‐assembled materials undergo a pH‐triggered structural transformation from a cubosome/hexosome coexistence to a hexosome phase, enhancing intracellular delivery of a multi‐target phytochemical formulation. The antioxidant‐loaded pH‐responsive LNPs
Thelma Akanchise, Fucen Luo, Borislav Angelov, Yuru Deng, Angelina Angelova   +4 more
wiley   +1 more source

Current and future perspectives for structural biology at the Grenoble EPN campus: a comprehensive overview

Journal of Synchrotron Radiation
The European Photon and Neutron campus in Grenoble is a unique site, encompassing the European Synchrotron Radiation Facility Extremely Brilliant Source, the Institut Laue–Langevin, the European Molecular Biology Laboratory and the Institut de Biologie ...
Andrew A. McCarthy, Shibom Basu, Florent Bernaudat, Matthew P. Blakeley, Matthew W. Bowler, Philippe Carpentier, Gregory Effantin, Sylvain Engilberge, David Flot, Frank Gabel, Lukas Gajdos, Jos J. A. G. Kamps, Eaazhisai Kandiah, Romain Linares, Anne Martel, Igor Melnikov, Estelle Mossou, Christoph Mueller-Dieckmann, Max Nanao, Didier Nurizzo, Petra Pernot, Alexander Popov, Antoine Royant, Daniele de Sanctis, Guy Schoehn, Romain Talon, Mark D. Tully, Montserrat Soler-Lopez   +27 more
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Identification of a Simplest Hypervalent Hydrogen Fluoride Anion in Solid Argon

Scientific Reports, 2017
Hypervalent molecules are one of the exceptions to the octet rule. Bonding in most hypervalent molecules is well rationalized by the Rundle–Pimentel model (three-center four-electron bond), and high ionic bonding between the ligands and the central atom ...
Meng-Chen Liu, Hui-Fen Chen, Chih-Hao Chin, Tzu-Ping Huang, Yu-Jung Chen, Yu-Jong Wu   +5 more
doaj   +1 more source

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

Advanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli, Diana García, Laia Soler, Elzbieta Pach, Kapil Gupta, Daniel Sanchez‐Rodriguez, Jordi Aguilar, Víctor Fuentes, Eduardo Solano, Cristian Mocuta, Jordi Farjas, Xavier Obradors, Teresa Puig   +12 more
wiley   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

Lorentz violating electrodynamics

, 2005
After summarizing the most interesting results in the calculation of synchrotron radiation in the Myers-Pospelov effective model for Lorentz invariance violating (LIV) electrodynamics, we present a general unified way of describing the radiation regime ...
, , Alfaro J, Alfaro J, Amelino-Camelia G, Belinka González, Bombelli L, Coburn W, Coburn W, Corichi A, F W Stecker F W, Gambini R, Girelli F, Haugan M P, Konopka T J, Lambiase G, Luis F Urrutia, Lämmerzhal C, Montemayor R, Montemayor R, Rafael Montemayor, Sahlmann H, Sahlmann H, Santiago A Martínez, Schwinger J, Smolin L, Thiemann T, Thiemann T, Thiemann T, Thiemann T, Wigger C, Will C M   +31 more
core   +3 more sources

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

Fast cooling synchrotron radiation in a decaying magnetic field and $\gamma$-ray burst emission mechanism

, 2014
Synchrotron radiation of relativistic electrons is an important radiation mechanism in many astrophysical sources. In the sources where the synchrotron cooling time scale $t_c$ is shorter than the dynamical time scale $t_{dyn}$, electrons are cooled down
Uhm, Z. Lucas, Zhang, Bing
core   +1 more source