Results 131 to 140 of about 7,798 (251)

The revision of baphetids from the Middle Pennsylvanian of the Czech Republic: Morphology, ontogeny, palaeoecology, and the reassessment of the phylogeny of Baphetoidea

open access: yesThe Anatomical Record, Volume 309, Issue 7, Page 1766-1787, July 2026.
Abstract The baphetoids represent a clade of the Carboniferous stem‐tetrapods (Middle Mississippian—Middle Pennsylvanian) with a characteristic extension of the orbits into antorbital vacuities, which formed keyhole‐shaped openings on the skull. The more derived baphetids were crocodile‐like piscivores frequently occurring in coal‐bearing lacustrine ...
Pavel Barták, Martin Ivanov, Boris Ekrt
wiley   +1 more source

Pore Structure and Controlling Factors of Continental Shale in the Xiagou Formation, Qingxi Sag, Jiuxi Basin. [PDF]

open access: yesACS Omega
Zhang S   +10 more
europepmc   +1 more source

Iowa Population Exposures to Metals and Metalloids in Well Water

open access: yesEnvironmental Toxicology, Volume 41, Issue 7, Page 459-469, July 2026.
ABSTRACT Previous Iowa studies suggest low levels and chronic arsenic exposures are associated with prostate cancer. The rural Iowa population heavily relies on private wells for drinking water resources and thus is vulnerable to contaminants such as heavy metals found in well water.
Donald L. Simmons   +9 more
wiley   +1 more source

Photosynthetic primary production in the Mesoproterozoic

open access: yesNew Phytologist, Volume 251, Issue 1, Page 64-80, July 2026.
Summary The Mesoproterozoic atmosphere had more CO2 and less O2 than at present. While the upper ocean was oxygenated, the deeper ocean was euxinic or ferruginous. Primary production was performed by Chlorobia, Cyanobacteria, Proteobacteria, and Archaeplastida.
Patricia Sánchez‐Baracaldo   +1 more
wiley   +1 more source

Physics‐Supervised Autonomous Inverse Fracture Modeling via Generative Artificial Intelligence

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Fracture networks act as critical pathways for groundwater flow and transport, yet their characterization remains challenging due to subsurface inaccessibility and stochastic complexity. Traditional inversion methods are computationally expensive and often fail to capture fracture heterogeneity accurately.
Guodong Chen   +5 more
wiley   +1 more source

Anisotropic Biot Coefficient of Fractured Rocks Drives Failure Conditions in Pressurized Reservoirs

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We present a theoretical framework to quantify the equivalent Biot coefficient tensor of fractured rock masses based on the properties of both the intact porous matrix and the fracture network. Our results show that the presence of dominant fracture sets produces an anisotropic equivalent Biot tensor, with larger values in the direction ...
Silvia De Simone
wiley   +1 more source

Shallow Modeling and Site‐Amplification From Telecommunications Fibers in Istanbul

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract We use pre‐existing fiber‐optic telecommunications fibers in Istanbul, Türkiye, to generate a seismic velocity model of the subsurface down to 100 m depth, and estimate site‐amplification in the region. We collect ambient noise, predominantly from urban traffic, along the 8 km segment fiber, extract Rayleigh wave dispersion curves, and use a ...
Daniel Bowden   +9 more
wiley   +1 more source

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