Results 91 to 100 of about 14,635 (238)

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 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

Long-lasting, deep effect of Saturn's giant storms. [PDF]

Sci Adv, 2023
Li C, de Pater I, Moeckel C, Sault RJ, Butler B, deBoer D, Zhang Z.   +6 more
europepmc   +1 more source

Araguainha Dome, Brazil: A polygonal impact structure due to a complex pre‐impact regional structural framework

Meteoritics &Planetary Science, EarlyView.
Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes, Wolf U. Reimold, Roger L. Gibson, Julia B. Curto Ma, Adolfo B. Silva, Natalia Hauser   +5 more
wiley   +1 more source

Revisiting the Hummeln structure, Sweden—A shallow marine Cambrian impact structure

Meteoritics &Planetary Science, EarlyView.
Abstract Hummeln is a simple impact structure located in south‐eastern Sweden. It is approximately 1.2 km in diameter and almost completely covered by a lake. Here, we present the first detailed investigation of impactites and mapping of the 164.25 m deep drill core Hummeln‐1 with a focus on impact metamorphism and the impact process.
S. Alwmark, J. Granbom, P. Ahlberg, M. Calner, S. Richoz, K. J. Gajewska, W. R. Hyde, K. Ljung, C. Alwmark   +8 more
wiley   +1 more source

Bret/BRAT

Critical Quarterly, EarlyView.
Nicholas Smart
wiley   +1 more source

Length of the Adult Human Colon in Health and Constipation Measured Using Magnetic Resonance Imaging

Neurogastroenterology &Motility, EarlyView.
Colon length was measured in adult healthy volunteers, people with chronic constipation, and people with IBS with constipation using MRI. Colon length is significantly longer in chronic constipation. The chronically constipated colon is unable to accommodate longitudinally in response to fluid influx from a macrogol challenge.
Faiz Alqarni, Soma Kumasaka, Caroline L. Hoad, Victoria Wilkinson‐Smith, Stuart Taylor, David Atkinson, Iyad Naim, Alex Menys, S. Mark Scott, Marc A. Benninga, Hayfa Sharif, Penny A. Gowland, Moira A. Taylor, Guruprasad P. Aithal, Robin C. Spiller, Maura Corsetti, Luca Marciani   +16 more
wiley   +1 more source

Swept-source OCT for corneal graft quantitative evaluation in the eye bank and the correlation of the measurements to pre-excision values. [PDF]

Sci Rep, 2022
Kaluzny BJ, Mlyniuk P, Liberski S, Jimenez-Villar A, Machalińska A, Grulkowski I.   +5 more
europepmc   +1 more source

Methods for substituting onsite ambient ultraviolet radiation measurements for personal exposure studies

Photochemistry and Photobiology, EarlyView.
Three methods for substituting on‐site ambient ultraviolet radiation measurements for personal exposure measurements were investigated. Assuming spatial persistency of measurements from high‐grade instruments delivers lowest uncertainties up to distances of 82 km.
F. Lubitz, S. Helletzgruber, H. Danhel, D. Radmanovac, A. Dzwonek, E. Kitz, P. Weihs, A. W. Schmalwieser   +7 more
wiley   +1 more source

Additional flight delays and magnetospheric-ionospheric disturbances during solar storms. [PDF]

Sci Rep, 2023
Wang Y, Xu XH, Wei FS, Feng XS, Bo MH, Tang HW, Wang DS, Bian L, Wang BY, Zhang WY, Huang YS, Li Z, Guo JP, Zuo PB, Jiang CW, Xu XJ, Zhou ZL, Zou P.   +17 more
europepmc   +1 more source