Results 181 to 190 of about 29,328 (286)

Coupled strontium-calcium isotopes in Archean anorthosites reveal a late start for mantle depletion. [PDF]

Nat Commun
Boyce M, Kemp A, Fisher C, Bevan D, Bevan D, Sadekov A, Lewis J, Wilde S, Ivanic T, Elliott T.   +9 more
europepmc   +1 more source

Hump‐Shaped Relationship Between Microbial Carbon Use‐Efficiency and Soil Organic Carbon in Alpine Grasslands

Advanced Science, Volume 13, Issue 8, 9 February 2026.
On the Qinghai–Tibetan Plateau, microbial carbon use efficiency (CUE) peaks at intermediate soil organic carbon levels and declines thereafter. In carbon‐rich soils, the formation of stable mineral‐associated organic carbon is decoupled from microbial CUE.
Yuting Wang, Yongneng Wei, Gangsheng Wang, Yang Ruan, Ling Li, Xiang Liu, Yunfeng Yang, Qirong Shen, Ning Ling   +8 more
wiley   +1 more source

Strontium isotopes and crustal evolution [PDF]

Nature, 1975
openaire   +1 more source

Emerging Heterogeneous Catalysis for Valorization of Biomass‐Derived Platform Molecules: The Systematic Review Toward Sustainable Biorefinery Applications

Advanced Energy and Sustainability Research, Volume 7, Issue 2, February 2026.
Recent advances in heterogeneous catalysis for biomass valorization are highlighted, focusing on furfural, hydroxymethylfurfural (HMF), levulinic acid and glycerol conversion into fuels and chemicals. Metal oxides, zeolites, metal–organic frameworks (MOFs), porous organic polymers (POPs), carbons, and supported metals are compared, emphasizing acid ...
Pratikkumar Lakhani, Atthapon Srifa
wiley   +1 more source

Barium‐Catalyzed Dehydrocoupling of Terminal Alkynes and Hydrosilanes

ChemistryEurope, Volume 4, Issue 2, February 2026.
A combined experimental, kinetic, and theoretical investigation reveals that molecular barium catalysts mediate competently the controlled dehydrocoupling of terminal alkynes and hydrosilanes for the production of alkynylsilanes. The dehydrocoupling of terminal alkynes and hydrosilanes catalyzed by alkaline‐earth complexes: calcium, strontium and, most
Sakshi Mohan, Eric Clot, Marie Cordier, Jean‐François Carpentier, Yann Sarazin   +4 more
wiley   +1 more source

Radiogenic strontium isotope variability in the Valley of Oaxaca: A predictive isoscape for Mesoamerican paleomobility studies. [PDF]

PLoS One
Pacheco-Forés SI, Gauthier N, Carpenter LB, Gordon G, Knudson KJ.   +4 more
europepmc   +1 more source

Photocatalytic Degradation of PFOA with Porous Lanthanoid Perovskites Nano Catalyst

Chemie Ingenieur Technik, Volume 98, Issue 1-2, Page 7-17, February 2026.
Photocatalytic degradation of PFOA was studied using nickel‐ and lanthanide‐doped perovskites under UV–VIS irradiation. Catalyst characterization confirmed successful doping, with Ni/NdMnO3 showing the highest photocatalytic efficiency. Degradation occurred via C–C bond cleavage, forming transformation products PFHpA and PFHxA.
Julia Schowarte, Ramona Riedel, Muddasar Safdar, Sven Helle, Thomas Fischer, Harvey Arellano‐García   +5 more
wiley   +1 more source

Mechanisms of near‐normal sea water dolomitisation: Mesohaline‐reflux or syn‐depositional?

The Depositional Record, Volume 12, Issue 1, February 2026.
This study investigates the dolomitisation of the Eocene Dammam Formation on the Arabian Plate using petrographic, mineralogical, geochemical and isotopic analyses. The findings reveal two distinct dolomite types, formed primarily through normal‐to‐mesohaline sea water dolomitisation, challenging previous models such as sabkha‐meteoric mixing.
Misbahu Abdullahi, Adhipa Herlambang, Khalid Al‐Ramadan, Ardiansyah Koeshidayatullah   +3 more
wiley   +1 more source

Development and validation of combined in vitro and in vivo assays for evaluating the efficacy of strontium-chelating compounds. [PDF]

Sci Rep
Varga N, Pomozi V, Kozák E, Erdei Z, Tóth S, Kutás A, Mucsi Z, Rapi Z, Kovács B, Matuscsák A, Bánhídi O, Váradi C, Rácz T, Német K, Viskolcz B, Szepesi Á.   +15 more
europepmc   +1 more source

Orbital and eustatic control of basin hydrology during the first stage of the Messinian Salinity Crisis

The Depositional Record, Volume 12, Issue 1, February 2026.
The paleo‐hydrology of the Sorbas Basin (SE Spain) and the wider Mediterranean region during the deposition of the Primary Lower Gypsum (PLG) stage of the Messinian Salinity Crisis, from ~5.97 to ~5.60 Ma, was affected by tectonics, precession‐forced climate oscillations, and eustatic sea‐level change.
Fernando Gázquez, Nicholas P. Evans, Thomas K. Bauska, Harold J. Bradbury, Alexandra V. Turchyn, María del Carmen Barroso, Alexander M. Piotrowski, José María Calaforra, David A. Hodell   +8 more
wiley   +1 more source