Results 21 to 30 of about 572,960 (261)

Sierra Nevada amphibians demonstrate stable occupancy despite precipitation volatility in the early 21st Century

open access: yesFrontiers in Ecology and Evolution, 2023
Climate can have a strong influence on species distributions, and amphibians with different life histories might be affected by annual variability in precipitation in different ways. The Sierra Nevada of California, United States, experienced some of the
Brian J. Halstead   +3 more
doaj   +1 more source

Near‐Field Microlensing from Wide‐Field Surveys [PDF]

open access: yesThe Astrophysical Journal, 2008
We estimate the rate of near-field microlensing events expected from all-sky surveys and investigate the properties of these events. Under the assumption that all lenses are composed of stars, our estimation of the event rate ranges from _{tot}~0.2 yr^{-1}$ for a survey with a magnitude limit of V_{lim}=12 to _{tot}~20 yr^{-1} for a survey with V_ ...
openaire   +2 more sources

S/P Amplitude Ratios Derived from Single-Component Seismograms and Their Potential Use in Constraining Focal Mechanisms for Microearthquake Sequences

open access: yesThe Seismic Record, 2022
Focal mechanisms, which reflect the sense of slip in earthquakes, provide important constraints for understanding crustal tectonics and earthquake source physics, including the interactions among earthquakes during mainshock–aftershock sequences or ...
David R. Shelly   +2 more
doaj   +1 more source

Lessons from the past: isotopes of an endangered rail as indicators of underlying change to tidal marsh habitats

open access: yesEcosystem Health and Sustainability, 2017
Introduction: Tidal marsh systems along the Pacific coast of the United States have experienced substantial stress and loss of area and ecosystem function, which we examined by using the endangered California Ridgway’s Rail, Rallus obsoletus obsoletus ...
Angela M Merritt   +5 more
doaj   +1 more source

Fracture‐Mesh Faulting in the Swarm‐Like 2020 Maacama Sequence Revealed by High‐Precision Earthquake Detection, Location, and Focal Mechanisms

open access: yesGeophysical Research Letters, 2023
In August of 2020, an earthquake sequence initiated within the Maacama fault zone in northern California, raising questions about its relationship with the larger‐scale fault.
David R. Shelly   +2 more
doaj   +1 more source

Eggshell thickness and egg morphometrics in five songbird species from the Central Valley, California

open access: yesJournal of Field Ornithology
Avian eggshell thickness is an important life history metric in birds and has broad applications across disciplines ranging from animal behavior to toxicology.
Carley R. Schacter   +4 more
doaj   +1 more source

Near surface sediments introduce low frequency noise into gravity models

open access: yesApplied Computing and Geosciences, 2023
3D geologic modeling and mapping often relies on gravity modeling to identify key geologic structures, such as basin depth, fault offset, or fault dip.
G.A. Phelps, C. Cronkite-Ratcliff
doaj   +1 more source

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait   +23 more
wiley   +1 more source

Modern Products for a Vintage Event: An Update on the 1933 Long Beach, California, Earthquake

open access: yesThe Seismic Record, 2023
When a notable earthquake occurs in the United States, a range of familiar real‐ and near‐real‐time products are produced by the U.S. Geological Survey (USGS) Advanced National Seismic System (ANSS), and made available via the ANSS Comprehensive ...
Susan E. Hough   +8 more
doaj   +1 more source

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

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