Results 71 to 80 of about 10,767 (294)

Post-depositional impacts on ‘Findlinge' (erratic boulders) and their implications for surface-exposure dating [PDF]

, 2018
Understanding and interpretation of ‘numbers' produced about the depositional age of an erratic boulder by cosmogenic nuclide surface-exposure dating is important in the construction of glacial chronology.
Ivy-Ochs, Susan, Akçar, Naki, Kubik, Peter, Schlüchter, Christian   +3 more
core  

Testing current estimates of the in situ cosmogenic ¹⁰Be production rate in the north-western British Isles, with implications for ice sheet behaviour during Termination 1 [PDF]

Geochronology
Cosmogenic nuclide surface-exposure dating (SED) is a rapidly growing tool in geoscience owing to its unrivalled potential for directly dating rock surfaces and thus the geomorphic and climatic events they represent.
G. R. M. Bromley, G. R. M. Bromley, B. L. Hall, A. E. Putnam, T. V. Lowell, T. V. Lowell   +5 more
doaj   +1 more source

Late Pleistocene glaciation in the southernmost Sangre de Cristo Mountains, New Mexico – Chronology and paleoclimate

Quaternary Science Advances, 2023
Surface-exposure dating of moraine boulders and numerical paleoglacier modeling yield the first numerical ages for the local Last Glacial Maximum (LGM) in the state of New Mexico and the southernmost Rocky Mountains, and the first glacier-based ...
Eric M. Leonard, Benjamin J.C. Laabs, Alexander Robertson, Mitchell A. Plummer, Daniel E. Ibarra, Marc W. Caffee   +5 more
doaj   +1 more source

Astrocyte heterogeneity in brain metastases

Molecular Oncology, EarlyView.
Astrocytes emerge as pivotal regulators of metastatic colonization, survival, immune remodeling, and therapy response associated with an increasing heterogeneity that requires spatially and longitudinally resolved approaches to uncover regulatory programs and guide context‐specific therapies.
Carolina Hernández‐Oliver, Neibla Priego, Manuel Valiente   +2 more
wiley   +1 more source

Cosmogenic surface exposure dating the last deglaciation in Denmark: discrepancies with independent age constraints suggest delayed periglacial landform stabilization [PDF]

, 2012
Cosmogenic nuclide surface exposure ages are determined from in situ¹⁰Be and ³⁶Cl analysis of 38 rock surfaces found in different glacial landforms in Denmark.
Wilchen, K.M., Binnie, S., Xu, S., Houmark-Nielsen, Michael, Fabel, D., Schnabel, C., Wilcken, K. M., Houmark-Nielsen, M., Linge, H.   +8 more
core   +1 more source

Early last glacial maximum in the southern Central Andes reveals northward shift of the westerlies at ~39 ka [PDF]

Climate of the Past, 2011
The latitudinal position of the southern westerlies has been suggested to be a key parameter for the climate on Earth. According to the general notion, the southern westerlies were shifted equatorward during the global Last Glacial Maximum (LGM: ~24–18 ...
R. Zech, J. Zech, Ch. Kull, P. W. Kubik, H. Veit   +4 more
doaj   +1 more source

Spatial biology in cancer epigenetics

Molecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

Cliff Retreat Rates Associated with a Low-Level Radioactive Waste Disposal Facility in Los Alamos, New Mexico, USA

GeoHazards
We present an analysis and interpretation of potential cliff stability at a low-level waste disposal facility at Los Alamos National Laboratory, New Mexico, using cliff morphologic and fracture characteristics coupled with carbon-14 surface exposure ...
Brent Goehring, Elizabeth Miller, Kay Birdsell, Emily S. Schultz-Fellenz, Richard Kelley, Sean French, Philip H. Stauffer   +6 more
doaj   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Chronology and Geomorphological Activity of the Akdag Rock Avalanche (SW Turkey)

Frontiers in Earth Science, 2020
Large rock-slope failures are among the primary geohazards in high mountain areas. These rock avalanches and rockslides constitute most of the world’s largest landslide deposits.
Cihan Bayrakdar, Tolga Gorum, Zeynel Çılğın, Christof Vockenhuber, Susan Ivy-Ochs, Naki Akçar   +5 more
doaj   +1 more source