Results 241 to 250 of about 593,300 (377)

Morphology of Antarctic Polygons and Implications for Polygon Evolution and Subsurface Ice Dynamics

open access: yesPermafrost and Periglacial Processes, Volume 37, Issue 1, Page 143-153, January/March 2026.
ABSTRACT Polygonal terrain results from thermal contraction, is commonly found in periglacial environments, and serves as a valuable proxy for interpreting subsurface ice distribution and climate history on Earth and Mars. In this study, we investigate the morphology of polygons in Beacon Valley, Antarctica, to assess the relationship between polygon ...
Rachael H. Hoover   +4 more
wiley   +1 more source

Is selective identification of poorly crystalline aluminum hydroxides in soils of temperate latitude possible?

open access: yesSoil Science Society of America Journal, Volume 90, Issue 1, January/February 2026.
Abstract Aluminum (Al) is one of the most abundant elements in soils. As poorly crystalline Al hydroxides are reactive toward soil organic matter (SOM), they are thought to be involved in SOM stabilization. This is also inferred from correlations between soil organic carbon contents and those of Al extracted by acid oxalate in darkness (AOD), although ...
Thilo Rennert   +2 more
wiley   +1 more source

Stratigraphy of Carbonate‐Bearing Rocks at the Margin of Jezero Crater, Mars: Evidence for Shoreline Processes?

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Martian carbonate‐bearing rocks are compelling targets for exploration because they preserve detailed records of past aqueous processes, climate, and habitability. The Margin unit in Jezero crater is a distinct olivine‐ and carbonate‐bearing unit stratigraphically underlying the western fan, lining the inner margin of the western crater rim ...
Alexander J. Jones   +29 more
wiley   +1 more source

Studies on Silicate Cement

open access: yesThe Journal of Nihon University School of Dentistry, 1974
Misaki ANZAI   +5 more
openaire   +3 more sources

Ten‐Year Results of a Prospective Study on One‐Piece Zirconia Oral Implants for Single‐Tooth Reconstruction

open access: yesClinical Oral Implants Research, Volume 37, Issue 1, Page 33-44, January 2026.
ABSTRACT Objectives The intention of this 10‐year prospective cohort investigation was to clinically and radiographically investigate the outcomes of a one‐piece zirconia implant system for single‐tooth replacement. Materials and Methods A total of 65 patients received 66 single‐tooth implants restored with all‐ceramic crowns.
Ralf‐Joachim Kohal   +6 more
wiley   +1 more source

Ytterbium Oxide as Radiopacifier of Calcium Silicate-Based Cements. Physicochemical and Biological Properties [PDF]

open access: gold, 2018
Bernardo Cesar Costa   +5 more
openalex   +1 more source

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