Results 91 to 100 of about 67,223 (338)

Complex Iridium Oxides Converge In Structure And Reactivity During Acidic Oxygen Evolution Electrocatalysis

open access: yesAdvanced Energy Materials, EarlyView.
Ir‐based double perovskites restructure during acidic oxygen evolution electrocatalysis through dissolution of non‐Ir cations and convergence toward IrOx active‐site motifs with similar structure and intrinsic activity across compositions. The identity of the dissolving cations controls dissolution and surface reconstruction kinetics, clarifying how ...
Harrison H. Lippie   +5 more
wiley   +1 more source

Nature monument "Borački krš": A geoheritage site in Serbia [PDF]

open access: yesZaštita prirode
Borački krš is a nature monument of geological and geomorphological character. The eruptive complex of Borač represents one of the most interesting and once extremely active Tertiary volcanic areas in Serbia, which has in terms of volcanic activities ...
Timotić Mirjana, Belij Srđan
doaj   +1 more source

Spatiotemporal Evolution of Volcanism in the Black Rock Desert Volcanic Field, Utah, and Its Migration Relative to the Colorado Plateau

open access: yesGeochemistry, Geophysics, Geosystems
In the southwest USA, the Colorado Plateau is encircled by Late Cenozoic volcanic fields, most of which have eruptive histories that are marginally constrained.
Brian R. Jicha   +2 more
doaj   +1 more source

Monitoring and Modeling the Rapid Evolution of Earth's Newest Volcanic Island: Hunga Tonga Hunga Ha'apai (Tonga) Using High Spatial Resolution Satellite Observations

open access: yesGeophysical Research Letters, 2018
We have monitored a newly erupted volcanic island in the Kingdom of Tonga, unofficially known as Hunga Tonga Hunga Ha'apai, by means of relatively frequent high spatial resolution (~50 cm) satellite observations.
J. B. Garvin   +6 more
doaj   +1 more source

Step‐by‐Step Technique for Platelet‐Rich Plasma Gel Preparation and Use in Knee Osteoarthritis

open access: yesArthroscopy Techniques, EarlyView.
Abstract Knee osteoarthritis (OA) remains a leading cause of pain and disability worldwide, and current injectable options such as corticosteroids and hyaluronic acid often provide limited or short‐term benefits. Orthobiologic therapies, particularly platelet‐rich plasma (PRP), have gained attention for their regenerative and anti‐inflammatory ...
Diego Ariel de Lima   +6 more
wiley   +1 more source

Global Volcanism Program

open access: yes, 2002
The Global Volcanism Program (GVP) seeks a better understanding of all volcanoes through documenting their eruptions during the past 10,000 years and has created a comprehensive computer database and archive of relevant maps, photos, and documents.
Global Volcanism Program, National Museum of Natural History
core  

The extension of the taxon cycle model to island plants: insights from the Canarian vascular flora

open access: yesBiological Reviews, EarlyView.
ABSTRACT Taxon cycle models describe eco‐evolutionary patterns of lineage colonization, diversification, and decline across archipelagos, inferring an important role for competition amongst ecologically similar taxa in driving concurrent niche changes.
José María Fernández‐Palacios   +2 more
wiley   +1 more source

Volcanostratigraphic Sequences of Kebo-Butak Formation at Bayat Geological Field Complex, Central Java Province and Yogyakarta Special Province, Indonesia

open access: yesIndonesian Journal on Geoscience, 2016
DOI:10.17014/ijog.3.2.77-94Bayat Complex is usually used as a work field for students of geology and other geosciences. The study area is located in the southern part of the Bayat Complex.
Sri Mulyaningsih
doaj   +1 more source

Polynesian settlement of New Zealand and the impacts of volcanism on early Maori society: An update

open access: yes, 2008
Presents an overview of the timing of Polynesian settlement in New Zealand, discussing the application of tephrochronology and rat and avian bone dating to the problem.
Lowe, David J.
core  

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