Results 211 to 220 of about 250,076 (324)

Radiation‐induced peroxide rupture and its temperature‐dependent repair probed by homogeneous X‐ray irradiation

Acta Crystallographica Section D, Volume 82, Issue 5, Page 492-503, May 2026.
This manuscript investigates the X‐ray‐induced radiolysis of the catalytic C5‐peroxide adduct in urate oxidase crystals, utilizing a top‐hat X‐ray beam to monitor peroxide occupancy across extensive dose series at both 100 K and room temperature. The study reveals a kinetic phase transition where the peroxide decays rapidly via zero‐order kinetics at ...
Symeon Koulas, Soi Bui, Julius B. Kirkegaard, Gleb Bourenkov, Roberto A. Steiner   +4 more
wiley   +1 more source

Triaxiality of neutron-rich ruthenium nuclei studied by lifetime measurements. [PDF]

Eur Phys J A Hadron Nucl
Heines JS, Modamio V, Görgen A, Korten W, Clément E, Dudouet J, Lemasson A, Ljungvall J, Allmond JM, Rodríguez TR, Bruce AM, Doherty DT, Esmaylzadeh A, Gamba ER, Gerl J, Georgiev G, Knafla L, Koseoglou P, Lalkovski S, Li HJ, Pasqualato G, Pedersen LG, Pietri S, Ralet D, Sahin E, Siem S, Söderström PA, Theisen C, Tornyi T.   +28 more
europepmc   +1 more source

Local Structure and Vacancy Distribution in Transition Metal Carbides: Results From High‐Resolution 13C NMR Spectroscopy

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
The local carbon environment in the refractory transition metal carbides ZrC, HfC, NbC, and TaC was studied using high‐resolution magic angle spinning 13C NMR spectroscopy. Results show that carbon nuclei with next nearest neighbor vacant sites or oxygen/nitrogen impurities are distinguishable through 13C NMR, and that the technique can be used to ...
William F. Rosenberg, Ping Yu, Sabyasachi Sen, Scott J. McCormack   +3 more
wiley   +1 more source

CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 801-818, May 2026.
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard, Katharina Lodders, Paul K. Carpenter, Piers Koefoed, Karen Ziegler, Kunihiko Nishiizumi, Marc W. Caffee, Laurence A. J. Garvie, Ryan C. Ogliore, Anthony J. Irving, Bradley L. Jolliff, Kun Wang   +11 more
wiley   +1 more source

A novel framework for neutron-gamma density logging: semi-empirical modeling, directional neutron sources, and experimental benchmarking. [PDF]

Sci Rep
Rafizade A, Hosseini SA.
europepmc   +1 more source

Ryugu reference project: Recommendations from the measurement definition team

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama, Guillaume Avice, Henner Busemann, Nicolas Dauphas, Daniel P. Glavin, Ashley J. King, Thorsten Kleine, Katharina Lodders, Frederic Moynier, Maria Schönbächler, Yoshinori Takano, Kun Wang, Hikaru Yabuta, Yuma Enokido, Ryota Fukai, Shogo Tachibana, Tomohiro Usui   +16 more
wiley   +1 more source

Hyperpolarization of Molecular Deuterium

Angewandte Chemie, Volume 138, Issue 16, 13 April 2026.
Hyperpolarized molecular deuterium is generated and detected using a nonhydrogenative SABRE catalyst with nicotinamide. The resonance shows a strongly enhanced partially negative line, substrate‐dependent and sensitive to transient intermediates.
Theresa L. K. Hune, Anakin Aden, Julius F. Matz, Denis Moll, Ilya Kuprov, Stefan Glöggler   +5 more
wiley   +2 more sources

Nanobiomaterial-enabled boron delivery systems and innovative strategies for revolutionizing BNCT. [PDF]

Theranostics
Yang Q, Wang R, Lingling H, Bian Q, Wei Q.   +4 more
europepmc   +1 more source

Structure and Dynamics of Imidazolium in an Ionic Liquid‐PEGDA Iongel via IR, 2D‐IR, and NMR Spectroscopy

ChemPhysChem, Volume 27, Issue 8, 28 April 2026.
Linear and nonlinear vibrational spectroscopies detect tight and loose complexes between imidazolium cations and poly(ethyleneoxide) chains in an iongel. Fourier transform infrared absorption spectroscopy, ultrafast two‐dimensional infrared spectroscopy, nuclear magnetic resonance spectroscopy, and density functional theory calculations show that, in ...
Kallol Mukherjee, Matthew R. Liberatore, Tyler A. Parrack, Sean Garrett‐Roe   +3 more
wiley   +1 more source