Results 211 to 220 of about 2,657,206 (280)

Guiding the De Novo Synthesis of Open Metal Frameworks Through Low-Symmetry Bent Linker for Hydrogen Isotope Separation. [PDF]

Small
Han GY, Zhong Z, Wang YS, Li TY, Gai Y, Cheng QY, Van Der Voort P, Ma Y, Hao GP, Feng X.   +9 more
europepmc   +1 more source

Oxygen isotope variability in the IIIAB iron meteorites and their relationship to main group pallasites

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2393-2405, September 2026.
Abstract The light element distribution in planetary cores and the processes driving core evolution in rocky planets are poorly understood. Magmatic iron meteorites are samples from the cores of ancient embryonic planetesimals and therefore provide a window into the processes governing core evolution. We performed high precision oxygen isotope analyses
R. J. Windmill, I. A. Franchi, X. Zhao, R. C. Greenwood, M. Anand   +4 more
wiley   +1 more source

Olivine and Fe-isotopes in kimberlites indicate an iron-rich substrate for CLIPPIR and other sub-lithospheric diamonds. [PDF]

Nat Commun
Howarth GH, Giuliani A, Tau MM, Cai R, Liu J.   +4 more
europepmc   +1 more source

Invariant splitting principles for the Lipshitz–Ozsváth–Thurston correspondence

Journal of Topology, Volume 19, Issue 3, September 2026.
Abstract We prove that the Lipshitz–Ozsváth–Thurston correspondence between extended type D structures of knot complements and F[U,V]/(UV)$\mathbb{F}[U,V]/(\textit{UV})$ knot Floer complexes can be arranged so that ιK${\iota}_{K}$‐invariant splittings of knot Floer chain complexes correspond to ιS3∖K${\iota}_{{S}^{3}\setminus K}$‐invariant splittings ...
Gary Guth, Sungkyung Kang
wiley   +1 more source

New Water Oxidation Mechanism in Photosystem II Resolves Major Experimental Controversies

Angewandte Chemie, Volume 138, Issue 35, 24 August 2026.
In Photosystem II Oxygen Evolving Complex, we discovered the O3‐O6 peroxide at lower energy. Assignment of the O3 ligated by histidine (His337) as a slow exchanging substrate and its coupling with O6 give the O─O bond formation mechanism most consistent with all currently available experimental data. Proposal shows how protein environment can steer the
Yulia Pushkar
wiley   +2 more sources

Coupled anatexis and extreme differentiation are the keys for producing giant lithium-rich pegmatites. [PDF]

Proc Natl Acad Sci U S A
Wei HZ, Palmer MR, Xu Z, Zhu W, Xu XS, Williams-Jones A, Zheng BH, Gao JG, Wang Q, Ma J, Yang K, Lin H, Zuo DS.   +12 more
europepmc   +1 more source

Direct Detection of Hydrogen Reveals a New Macroscopic Crustal Water Reservoir on Early Mars

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract The next great leap in Martian exploration is the return of samples to Earth. Maximizing their scientific value requires non‐destructive analytical techniques for early three‐dimensional characterization. Neutron computed tomography (CT), highly sensitive to hydrogen, complements conventional X‐ray CT and enables the detection of hydrous ...
Estrid Buhl Naver, Katrine Wulff Nikolajsen, Martin Sæbye Carøe, Domenico Battaglia, Jens Frydenvang, Martin Bizzarro, Jakob Sauer Jørgensen, Kim Lefmann, Anders Kaestner, David Christian Mannes, Phil Cook, Henrik Birkedal, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Henning Friis Poulsen, Luise Theil Kuhn   +15 more
wiley   +1 more source

Isotope Decluttering Reduces Spectral Complexity while Maintaining Protein Structure. [PDF]

Anal Chem
Hakke SS, Noteborn WEM, Cabukusta B, Gao Y, Knoops K, López-Iglesias C, Kilgour DPA, Clarke DJ, Mathew A, Heeren RMA.   +9 more
europepmc   +1 more source

Iron Isotopes Reveal Fe Export Driven by Change of Tropical Weathering Regime

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Unraveling paleoenvironmental signals recorded in laterites is crucial for quantifying weathering‐driven elemental fluxes at the Earth's surface. New stable iron isotope data (δ56Fe), combined with (U‐Th)/He ages in Fe‐oxides from a ferruginous duricrust from French Guiana, reveal the response of Fe hosted in laterite to past changes in ...
Z. Fekiacova‐Castanet, B. Heller, D. Guinoiseau, J. Bouchez, A. Duvivier, S. Cornu, A. Guihou, C. Quantin, T. Allard, S. B. Riffel, P. Deschamps, C. Gautheron   +11 more
wiley   +1 more source

Changing sea ice cover led to marine biodiversity shifts in the Late Quaternary. [PDF]

Commun Earth Environ
De Schepper S, Cordier T, Skaar KS, Ray JL, Sadatzki H, Risebrobakken B.   +5 more
europepmc   +1 more source