Results 61 to 70 of about 17,921 (226)

The Paleo‐Tethys Suture Zone in the Afghan Hindu Kush‒Pamir: Geo‐Thermochronology, Geochemistry, Tectonics

open access: yesTectonics, Volume 45, Issue 3, March 2026.
Abstract In the Afghan Hindu Kush, the 223–209 Ma (≤800°C) Salang batholith is part of the Silk‐Road magmatic arc that was built on ∼40‐km‐thick Turan‐Karakum block continental crust. The batholith constitutes the hanging wall of the Herat‐Panjshir‐Badakhshan—the Paleo‐Tethys—suture zone, vestige of the subducted Paleozoic‐early Mesozoic Paleo‐Tethys ...
Lothar Ratschbacher   +8 more
wiley   +1 more source

Managing Retractions and their Afterlife: A Tripartite Framework for Research Datasets

open access: yesInternational Journal of Digital Curation
Retractions serve as a critical, albeit last-resort, post-publication correction mechanism in scholarly publishing, playing an important role in upholding the integrity of the scientific record.
Renata Curty
doaj   +1 more source

Functional Redundancy Buffers Soil Fungal Turnover Against Vegetation Change in an African Savanna

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Using a natural savanna‐forest gradient in South Africa, we show that vegetation transitions drive high turnover in fungal taxonomy but maintain functional stability. Distinct forest communities replaced savanna taxa yet preserved similar guild structures, highlighting a high degree of functional redundancy despite compositional change.
Yong Zhou   +4 more
wiley   +1 more source

Attempts at vacuum counterexamples to cosmic censorship in AdS

open access: yesJournal of High Energy Physics, 2019
We consider vacuum solutions of four dimensional general relativity with Λ < 0. We numerically construct stationary solutions that asymptotically approach a boundary metric with differential rotation. Smooth solutions only exist up to a critical rotation.
Toby Crisford   +2 more
doaj   +1 more source

Performance of a low data rate speech codec for land-mobile satellite communications [PDF]

open access: yes
In an effort to foster the development of new technologies for the emerging land mobile satellite communications services, JPL funded two development contracts in 1984: one to the Univ. of Calif., Santa Barbara and the other to the Georgia Inst.
Gersho, Allen, Jedrey, Thomas C.
core   +1 more source

Information Loss and Anomalous Scattering

open access: yes, 1992
The approach of 't Hooft to the puzzles of black hole evaporation can be applied to a simpler system with analogous features. The system is $1+1$ dimensional electrodynamics in a linear dilaton background.
A. Strominger   +23 more
core   +2 more sources

Rising Global Riverine Deoxygenation Rates and GHG Emissions Driven by the Synergistic Effects of Warming and Anthropogenic Land Use Expansion

open access: yesGlobal Change Biology, Volume 32, Issue 3, March 2026.
Conceptual diagram summarizing study findings. Climatic shifts (river warming and intensified precipitation), together with expanding anthropogenic land uses, have driven elevated riverine GHG emissions and deoxygenation over recent decades. These responses reflect enhanced microbial activity under nutrient and organic matter enrichment at higher ...
Ricky Mwangada Mwanake   +2 more
wiley   +1 more source

Geometric neural operators (gnps) for data-driven deep learning in non-euclidean settings

open access: yesMachine Learning: Science and Technology
We introduce Geometric Neural Operators (GNPs) for data-driven deep learning of geometric features for tasks in non-euclidean settings. We present a formulation for accounting for geometric contributions along with practical neural network architectures ...
B Quackenbush, P J Atzberger
doaj   +1 more source

Soil Metabarcoding Helps Identify Recalcitrant Taxa From Chaparral Seed Banks

open access: yesJournal of Vegetation Science, Volume 37, Issue 2, March/April 2026.
Soil seed banks preserve plant diversity, but traditional germination methods often miss dormant or hard‐to‐germinate species. Our study tested metabarcoding as an alternative, finding that DNA‐based sequencing was more reliable than RNA and that water treatments influenced sequencing results.
Angela Chu   +4 more
wiley   +1 more source

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