Results 141 to 150 of about 143,691 (326)

Scientists’ warning on the global destruction of rock outcrop ecosystems

open access: yesConservation Biology, EarlyView.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula   +19 more
wiley   +1 more source

Limited elephant impacts on baobabs despite increasing elephant densities in a newly established protected area

open access: yesConservation Science and Practice, EarlyView.
Researchers combined aerial and ground surveys to map baobab distribution and assess elephant herbivory impacts on baobabs across Karingani Game Reserve, Mozambique. Researchers found that aerial surveys were an effective tool for mapping baobabs and that baobabs were more likely to occur closer to permanent water, at lower elevations, and in areas ...
Audrey Y. Chin   +4 more
wiley   +1 more source

Fatigue and Rutting Performance of FAA and Conventional Asphalt Mixture Systems

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study evaluates the laboratory fatigue and rutting performance of two specification‐compliant asphalt mixture systems: an FAA‐compliant airfield mixture designed according to FAA AC 150/5370‐10H and a conventional highway mixture designed according to the Turkish General Directorate of Highways requirements.
Yalcin Karakaya, Murat Guler
wiley   +1 more source

Assessment of the basaltic rocks in Yemen for the basalt fibers production

open access: yesThamar University Journal of Natural & Applied Sciences
Representative samples were collected from 22 sites across Yemen. The geochemical analysis found that the SiO2 content ranges from 40.40 to 55.60%, the Al2O3 content ranges from 12.70 to 16.10%, the Fe2O3 content ranges from 8.41 to 15.80%, the CaO content ranges from 3.66 to 11.05%, and the MgO content ranges from 1.30 to 11.40%.
openaire   +1 more source

Exploring the Association Between Complaints of Sensory Hypersensitivity and Sleep Disturbances After Acquired Brain Injury: A Cross‐Sectional Study

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Sleep disturbances are prevalent after acquired brain injury and negatively affect quality of life. Sensory hypersensitivity may cause or exacerbate sleep disturbances, yet evidence on this relationship after acquired brain injury is lacking. The aim of this study was to investigate the hypothesised positive relationship between the severity ...
A. F. Ten Brink   +4 more
wiley   +1 more source

Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta   +9 more
wiley   +1 more source

Lithostratigraphy, geology and geochemistry of the volcanic rocks of the Maligât Formation and associated intrusions on Disko and Nuussuaq, Paleocene of West Greenland

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2018
The Paleocene volcanic rocks in the Nuussuaq Basin on Disko and Nuussuaq comprise the picritic Vaigat Formation (c. 62–61 Ma) and the overlying basaltic Maligât Formation (c. 60 Ma).
Asger Ken Pedersen   +2 more
doaj  

On basaltic glass [PDF]

open access: yesJournal of the Franklin Institute
n ...
openaire   +2 more sources

Araguainha Dome, Brazil: A polygonal impact structure due to a complex pre‐impact regional structural framework

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes   +5 more
wiley   +1 more source

Impact‐diagnostic criteria for use in confirming a meteorite impact origin of terrestrial geological structures: Recommendations by the Impact Cratering Committee of the Meteoritical Society

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a database of confirmed terrestrial meteorite impact structures, (2) define and regularly update the criteria used for ...
A. J. Cavosie   +11 more
wiley   +1 more source

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