Results 21 to 30 of about 84,641 (142)

Polar Stratospheric Clouds: Satellite Observations, Processes, and Role in Ozone Depletion

Reviews of Geophysics, Volume 59, Issue 2, June 2021., 2021
Abstract Polar stratospheric clouds (PSCs) play important roles in stratospheric ozone depletion during winter and spring at high latitudes (e.g., the Antarctic ozone hole). PSC particles provide sites for heterogeneous reactions that convert stable chlorine reservoir species to radicals that destroy ozone catalytically.
Ines Tritscher, Michael C. Pitts, Lamont R. Poole, Simon P. Alexander, Francesco Cairo, Martyn P. Chipperfield, Jens‐Uwe Grooß, Michael Höpfner, Alyn Lambert, Beiping Luo, Sergey Molleker, Andrew Orr, Ross Salawitch, Marcel Snels, Reinhold Spang, Wolfgang Woiwode, Thomas Peter   +16 more
wiley   +1 more source

31P Nuclear Magnetic Resonance Spectroscopy as a Probe of Thorium–Phosphorus Bond Covalency: Correlating Phosphorus Chemical Shift to Metal–Phosphorus Bond Order

Journal of the American Chemical Society, 2023
We report the use of solution and solid-state 31P Nuclear Magnetic Resonance (NMR) spectroscopy combined with Density Functional Theory calculations to benchmark the covalency of actinide-phosphorus bonds, thus introducing 31P NMR spectroscopy to the ...
Jingzhen Du, Joseph Hurd, John A. Seed, G. Balázs, Manfred Scheer, R. W. Adams, Daniel Lee, S. Liddle   +7 more
semanticscholar   +1 more source

ROBL‐II at ESRF: a synchrotron toolbox for actinide research

Journal of Synchrotron Radiation, Volume 28, Issue 1, Page 333-349, January 2021., 2021
ROBL‐II at ESRF provides four experimental stations to investigate actinides with X‐ray absorption and emission spectroscopy, and with surface, high‐resolution powder, and single‐crystal X‐ray diffractometry.ROBL‐II provides four different experimental stations to investigate actinide and other alpha‐ and beta‐emitting radionuclides at the new EBS ...
Andreas C. Scheinost, Juergen Claussner, Joerg Exner, Manuel Feig, Stefan Findeisen, Christoph Hennig, Kristina O. Kvashnina, Damien Naudet, Damien Prieur, Andre Rossberg, Moritz Schmidt, Canrong Qiu, Patrick Colomp, Cedric Cohen, Eric Dettona, Vadim Dyadkin, Thorsten Stumpf   +16 more
wiley   +1 more source

^193Ir nuclear forward scattering of an iridium(I) complex

Hyperfine Interactions, 2023
Synchrotron based nuclear forward scattering (NFS) experiments using the ^193Ir nucleus have been performed for the first time on a dinuclear iridium(I) complex, [IrCl(COD)]_2 with COD being cycloocta-1,5-diene.
M. H. Hoock, Olaf Leupold, Alexander Haag, A. Omlor, René Steinbrügge, Ilya Sergueev, R. Röhlsberger, Hans-Jörg Krüger, J. Wolny, Volker Schünemann   +9 more
semanticscholar   +1 more source

Convergence of nuclear effective field theory with perturbative pions [PDF]

, 2019
The classic paper by Fleming, Mehen, and Stewart (FMS) [Nucl. Phys. A 677, 313 (2000)] cast doubts on the convergence of spin-triplet nucleon-nucleon partial wave scattering amplitudes when following the proposal of Kaplan, Savage, and Wise to construct ...
D. Kaplan
semanticscholar   +1 more source

Chloroplast nucleoids are highly dynamic in ploidy, number, and structure during angiosperm leaf development

The Plant Journal, Volume 102, Issue 4, Page 730-746, May 2020., 2020
Summary Chloroplast nucleoids are large, compact nucleoprotein structures containing multiple copies of the plastid genome. Studies on structural and quantitative changes of plastid DNA (ptDNA) during leaf development are scarce and have produced controversial data.
Stephan Greiner, Hieronim Golczyk, Irina Malinova, Tommaso Pellizzer, Ralph Bock, Thomas Börner, Reinhold G. Herrmann   +6 more
wiley   +1 more source

Nuclear Lattice Simulations using Symmetry-Sign Extrapolation [PDF]

, 2015
Projection Monte Carlo calculations of lattice Chiral Effective Field Theory suffer from sign oscillations to a varying degree dependent on the number of protons and neutrons.
Epelbaum, Evgeny, Krebs, Hermann, Lee, Dean, Luu, Thomas, Lähde, Timo A., Meißner, Ulf-G., Rupak, Gautam   +6 more
core   +2 more sources

Effective Field Theory and Finite Density Systems

, 2008
This review gives an overview of effective field theory (EFT) as applied at finite density, with a focus on nuclear many-body systems. Uniform systems with short-range interactions illustrate the ingredients and virtues of many-body EFT and then the ...
Abrikosov AA, Bertsch GF, Fetter AL, Gautam Rupak, Gorkov LP, Natl. Res. Counc., Negele JW, Pines D, Regal C, Richard J. Furnstahl, Rozpedzik D, Thomas Schäfer   +11 more
core   +1 more source

Nucleon-Nucleon Interaction: A Typical/Concise Review [PDF]

, 2007
Nearly a recent century of work is divided to Nucleon-Nucleon (NN) interaction issue. We review some overall perspectives of NN interaction with a brief discussion about deuteron, general structure and symmetries of NN Lagrangian as well as equations of ...
A Amghar, A C Cordon, A D Jackson, A Ekström, A Faessler, A Faessler, A Funk, A M Green, A M Green, A M Shirokov, A M Shirokov, A M Shirokov, A M Shirokov, A Schwenk, A Valcarce, B B Singh, B D Day, B Desplanques, B L Cohen, C A Bertulani, C A Rocha da, C Downum, C N Bressel, C Ordonez, D B Kaplan, D Bartz, D Hadjimichef, D Pluemper, D R Entem, D R Entem, D R Entem, D Shukla, D V Bugg, D Y Wong, E E Faassen van, E Epelbaum, E Epelbaum, E Epelbaum, E Epelbaum, E Epelbaum, E Epelbaum, E Epelbaum, E M Henley, E R Arriola, F Gross, F Gross, F Gross, F Myhrer, G Breit, G E Brown, G H Wu, G Jones, G P Kamuntavicius, H A Bethe, H A Bethe, H Polinder, H Sugawara, H Yukawa, H-W Hammer, I Arisaka, I E Lagaris, I P Cavalcante, J Cote, J Goto, J Haidenbauer, J Haidenbauer, J Haidenbaur, J Haidenbaur, J J Swart de, J L Gammel, J L Gammel, J R Bergervoet, J W Holt, J Wambach, J-W Chen, K A Brueckner, K E Lassila, K Erkelenz, K Hashimoto, K Murano, K S Krane, K Saito, K Shimizu, K-Y Kim, L Jaede, L Jaede, L Jaede, L Jaede, L Petris, L R Dai, M Albaladejo, M C Birse, M C M Rentmeester, M C M Rentmeester, M Garcon, M H Partovi, M K Pal, M Lacombe, M M MacGregor, M M Nagels, M M Nagels, M M Nagels, M M Nagels, M M Nagels, M M Nagels, M Oka, M R Robilotta, M R Robilotta, M Rashdan, M Serra, M Sugawara, M Taketani, M Taketani, M. Naghdi, N Hoshizaki, N Hoshizaki, N Hoshizaki, N Ishii, N Kaiser, N Kaiser, N Kaiser, N Kaiser, N Kaiser, O Plohl, O Plohl, P Doleschall, P Doleschall, P LaFrance, P M M Maessen, P S Signell, R A Arndt, R A Arndt, R A Arndt, R A Arndt, R A Arndt, R A Bryan, R A M M Klomp, R B Wiringa, R B Wiringa, R B Wiringa, R F Lebed, R Higa, R Higa, R Higa, R J N Philips, R Machleidt, R Machleidt, R Machleidt, R Machleidt, R Machleidt, R Machleidt, R Machleidt, R Machleidt, R N Perez, R Timmermans, R Tourreil de, R Tourreil de, R V Reid, R Vinh Mau, S A Zaitsev, S A Zaitsev, S Fleming, S Gartenhaus, S J Wallacen, S K Bogner, S K Bogner, S K Bogner, S Okubo, S Petschauer, S R Beane, S R Beane, S S M Wong, S Veerasamy, S Weinberg, T A Minelli, T Hamada, T Hamada, T Obinata, T Obinata, T Obinata, T T Takahashi, T-S Park, Th A Rijken, Th A Rijken, Th A Rijken, Th A Rijken, Th A Rijken, Th A Rijken, Th A Rijken, Th A Rijken, Th A Rijken, Th A Rijken, U Kolck van, U Kolck van, U Kolck van, U-G Meissner, V A Knyr, V Bernard, V G J Stoks, V G J Stoks, V G J Stoks, V G Neudatchin, V I Kukulin, V Stoks, W N Cottingham, Y Fujiwara, Y Koma, Y Kondo   +207 more
core   +2 more sources

Understanding the SN2 Versus E2 Competition

Chemistry – A European Journal, Volume 31, Issue 41, July 22, 2025.
We provide an intuitive framework rooted in quantitative molecular orbital theory to understand the factors that govern the competition between the SN2 and E2 reaction pathways. The guiding concepts are: characteristic distortivity, transition state acidity, intrinsic nucleophilicity, and apparent nucleophilicity.
Pascal Vermeeren, Thomas Hansen, Trevor A. Hamlin, F. Matthias Bickelhaupt   +3 more
wiley   +1 more source