Results 101 to 110 of about 5,007 (212)

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, EarlyView.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

Meteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews, Auriol S. P. Rae, Thomas Kenkmann, Nicholas E. Timms, Aaron J. Cavosie, Marian B. Holness   +5 more
wiley   +1 more source

Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil

Meteoritics &Planetary Science, EarlyView.
Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta, Neivaldo Araújo de Castro, Marcos Alberto Rodrigues Vasconcelos, Airton Natanael Coelho Dias, Ludovic Ferrière, Wolf Uwe Reimold, Ana Maria Góes, Jackson Alves Martins, Liliana Sayuri Osako, Raimundo Mariano Gomes Castelo Branco   +9 more
wiley   +1 more source

From Competition to Compartmentalization: Rethinking Türkiye‐Gulf Relations

Middle East Policy, EarlyView.
Abstract For nearly a decade following the Arab uprisings, relations between Ankara and key Gulf capitals were marked by intense rivalry and proxy contestation across several regional arenas, notably in Egypt and Syria. Why did relations shift toward pragmatic cooperation after such prolonged polarization?
Betul Dogan‐Akkas
wiley   +1 more source

Integrating Lateral Super‐Resolution and Axial Progression Reveals Distinct Clathrin Pit Formation Pathways

Traffic, Volume 27, Issue 3, September 2026.
Variable‐angle total internal reflection fluorescence structured illumination microscopy (vaTIRF‐SIM) links nanoscale lateral organization with axial progression during clathrin‐mediated endocytosis. Super‐resolved TIRF‐SIM images resolve the lateral architecture of AP2‐labeled clathrin coats, while corresponding Z‐index maps report relative axial ...
Cristopher Thompson, Aritra Mondal, Gregory Lafyatis, Comert Kural   +3 more
wiley   +1 more source

A Self‐Supervised Machine Learning Approach for the Estimation of Open‐Circuit Voltage Degradation in Photovoltaic Systems

Progress in Photovoltaics: Research and Applications, Volume 34, Issue 7, Page 920-941, July 2026.
This study introduces a self‐supervised machine learning approach integrating physics‐based principles to estimate open‐circuit voltage ( voc) degradation in photovoltaic systems using SCADA data. By combining clustering and regression algorithms, our method detects performance deviations without labelled datasets. Results across three PV installations
Sandra Riaño, Jose‐Domingo Santos, Miguel Esteras, Amaia Abanda, Javier Del Ser   +4 more
wiley   +1 more source

A Novel Ice Cloud Optical Property Model for Passive and Active Remote Sensing Applications

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract A new broad‐spectrum ice cloud optical property model, namely the Passive‐Active Remote Sensing Consistent (PARSC) model, is developed to achieve consistency between passive and active sensor‐based ocean‐occurring ice cloud property retrievals.
J. Coy, P. Yang, K. Meyer, J. Riedi, X. Liu   +4 more
wiley   +1 more source

Structured coherent thermal emission from non-Hermitian metasurfaces. [PDF]

Nat Commun
Sun K, Wang K, Li W, Cai Y, Wang W, Kivshar Y, Han Z.   +6 more
europepmc   +1 more source

Azimuthal polarization filtering for accurate, precise, and robust single-molecule localization microscopy. [PDF]

Nano Lett, 2014
Lew MD, Moerner WE.
europepmc   +1 more source

Differences in Lightning—Storm Microphysical Relationships in Subtropical South America Versus the Continental U.S. and Their Impact on Model Lightning Parameterizations

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Satellite studies have shown that some of the deepest convection with high lightning flash rates occurs downstream of the Andes in subtropical South America (SSA). Using high resolution ground‐based observations in SSA, we explore the relationship between lightning and radar‐inferred storm microphysics.
M. N. Rocque, W. Deierling, K. L. Rasmussen   +2 more
wiley   +1 more source