Results 61 to 70 of about 24,918 (198)

Propagation of Muons and Taus at High Energies [PDF]

open access: yes, 2000
The photonuclear contribution to charged lepton energy loss has been re-evaluated taking into account HERA results on real and virtual photon interactions with nucleons.
A. A. Petrukhin   +56 more
core   +3 more sources

Acceptability and effectiveness of Ohio START: A child welfare service delivery model

open access: yesFamily Relations, Volume 75, Issue 1, Page 64-83, February 2026.
Abstract Objective This study aimed to explore the potential effects of a child welfare service delivery model called Ohio START (Sobriety, Treatment, And Reducing Trauma), a certified affiliate of the national START (Sobriety, Treatment, and Recovery Teams) model, which supports families through case closure.
Charis Stanek   +8 more
wiley   +1 more source

Neutrino Anomalies without Oscillations [PDF]

open access: yes, 1999
I review explanations for the three neutrino anomalies (solar, atmospheric and LSND) which go beyond the ``conventional'' neutrino oscillations induced by mass-mixing.
A Acker   +49 more
core   +3 more sources

Standardization of MR Electrical Properties Tomography: A Guideline From the ISMRM Electro‐Magnetic Tissue Properties Study Group

open access: yes
Journal of Magnetic Resonance Imaging, Volume 63, Issue 4, Page 1204-1207, April 2026.
Stefano Mandija   +17 more
wiley   +1 more source

Chemically Driven Nano‐Elastic Heterogeneities Control Fragility in Volcanic Melts

open access: yesAdvanced Science, Volume 13, Issue 5, 27 January 2026.
The study elucidates how nanoscale structural heterogeneity governs the mechanical behavior of volcanic glasses across compositions from basalt to rhyolite. Using a physicochemical framework, correlation length (ξ) and microscopic free volume (Vc) are derived from vibrational and physical properties, revealing systematic trends with silica content that
Michele Cassetta   +13 more
wiley   +1 more source

Fission Track Dating of Obsidian Samples from Lipari Neolithic Settlements

open access: yesHeritage
The present work describes the first results of the project “Lipari Obsidian and Neolithic Human Communities in the Aeolian Islands”, which aims to study the connection between obsidian sources on the island of Lipari and Neolithic populations on the ...
Maria Clara Martinelli   +6 more
doaj   +1 more source

The Quasar Main Sequence explained by the combination of Eddington ratio, metallicity and orientation [PDF]

open access: yes, 2019
We address the effect of orientation of the accretion disk plane and the geometry of the broad-line region (BLR) as part of an effort to understand the distribution of quasars in the optical plane of the quasar main sequence.
Czerny, Bożena   +2 more
core   +2 more sources

Spatiotemporal Impacts of Forest Fires on Mountain Vegetation: A Case Study From Langtang National Park, Nepal Himalaya

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
A good positive correlation was found between maximum temperature and burn area; increased temperature relates to an increase in fire activity and larger burn areas. Grassland and needle leaf forests are the major land cover types with relatively high fire frequency, likely due to flammable biomass and seasonal dryness, while broad leaved closed ...
Shiva Pokhrel   +6 more
wiley   +1 more source

Community structure and range shifts in Arctic marine fish under climate change

open access: yesEcography, Volume 2026, Issue 1, January 2026.
Arctic marine ecosystems are rapidly transforming due to climate change. Warming temperatures and shrinking sea ice are enabling boreal fish to expand northward, possibly disturbing cold‐adapted Arctic species assemblages. Species range shifts have been documented in the Bering and Barents Seas, raising concerns about ecosystem restructuring.
Virginie Marques   +7 more
wiley   +1 more source

Simplified models for photohadronic interactions in cosmic accelerators

open access: yes, 2010
We discuss simplified models for photo-meson production in cosmic accelerators, such as Active Galactic Nuclei and Gamma-Ray Bursts. Our self-consistent models are directly based on the underlying physics used in the SOPHIA software, and can be easily ...
ANTARES Collaboration.   +20 more
core   +1 more source

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