Results 71 to 80 of about 256,624 (343)

Monitoring lava lake fluctuations and crater refilling with continuous laser rangefinders

open access: yesJournal of Applied Volcanology
The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) has developed a new method to continuously monitor lava lake elevations. Since 2018, HVO has stationed a laser rangefinder on Kīlauea’s caldera rim.
E. F. Younger, W. Tollett, M. R. Patrick
doaj   +1 more source

Guidelines for volcano-observatory operations during crises: recommendations from the 2019 volcano observatory best practices meeting

open access: yesJournal of Applied Volcanology, 2022
In November 2019, the fourth Volcano Observatory Best Practices workshop was held in Mexico City as a series of talks, discussions, and panels. Volcanologists from around the world offered suggestions for ways to optimize volcano-observatory crisis ...
J. B. Lowenstern   +10 more
doaj   +1 more source

Mud Volcanoes

open access: yes, 2010
Mud volcanoes are frequently encountered geo-structures at active and passive continental margins. In contrast to magmatic volcanoes, mud volcanoes are marine or terrestrial, topographic elevations built from vertically rising fluidized mud or mud breccia. Commonly, these structures have a crater, hummocky rime and caldera.
Niemann, H., Boetius, A.
openaire   +3 more sources

A bioinformatics screen identifies TCF19 as an aggressiveness‐sustaining gene in prostate cancer

open access: yesMolecular Oncology, EarlyView.
Gene expression meta‐analysis in multiple prostate cancer patient cohorts identifies Transcription factor 19 (TCF19) as an aggressiveness‐sustaining gene with prognostic potential. TCF19 is a gene repressed by androgen signaling that sustains core cancer‐related processes such as vascular permeability or tumor growth and metastasis.
Amaia Ercilla   +15 more
wiley   +1 more source

Chemistry, Growth, and Fate of the Unique, Short‐Lived (2019–2020) Water Lake at the Summit of Kīlauea Volcano, Hawaii

open access: yesGeochemistry, Geophysics, Geosystems
Less than a year after the 2018 Kīlauea caldera collapse and eruption, water appeared in newly deepened Halemaʻumaʻu crater. The lake—unprecedented in the written record—grew to a depth of ∼50 m before lava from the December 2020 eruption boiled it away.
P. A. Nadeau   +8 more
doaj   +1 more source

High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano

open access: yes, 2016
Resolving changes in topography through time using accurate high‐resolution digital elevation models (DEMs) is key to understanding active volcanic processes.
M. Bagnardi, P. González, A. Hooper
semanticscholar   +1 more source

Taking the pulse of Mars via dating of a plume-fed volcano

open access: yesNature Communications, 2017
Mars hosts the solar system’s largest volcanoes. Although their size and impact crater density indicate continued activity over billions of years, their formation rates are poorly understood.
B. E. Cohen   +5 more
semanticscholar   +1 more source

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

open access: yesMolecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici   +8 more
wiley   +1 more source

Volcano electrical tomography unveils edifice collapse hazard linked to hydrothermal system structure and dynamics

open access: yesScientific Reports, 2016
Catastrophic collapses of the flanks of stratovolcanoes constitute a major hazard threatening numerous lives in many countries. Although many such collapses occurred following the ascent of magma to the surface, many are not associated with magmatic ...
M. Rosas-Carbajal   +3 more
semanticscholar   +1 more source

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