Results 181 to 190 of about 464,947 (293)

Pigment‐Macromolecule Complexes Isolation from Sea Urchin Biomineral Waste for Coloring Materials

open access: yesChemistry–Methods, EarlyView.
A methodology has been developed to extract the colored organic fraction occluded within seashell biomineral waste. Applied to sea urchin skeletons, free polyhydroxylated naphthoquinone (PHNQ) pigments and PHNQ‐macromolecule complexes are isolated. These complexes show superior pH stability in purple hues compared to free PHNQ, which shifts from red to
Claudio Ferreira   +12 more
wiley   +1 more source

Odontogenic (hematogenic) or sinusopathy (contiguous) brain abscess: Case report. [PDF]

open access: yesJ Clin Exp Dent
Thereza-Bussolaro C   +4 more
europepmc   +1 more source

Mentioning Sustainable Development Goals in Large Hotel Companies' Sustainability Reports: Signals of Substantive or Symbolic Commitment

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This work investigates whether leading hotel companies operating in Europe that refer more to sustainable development goals (SDGs) within their sustainability reports engage in more SDG‐related initiatives. Relying on signaling theory, a longitudinal automated content analysis was conducted on reports published from 2015 to 2022—the 2030 ...
Rodolfo Damiano, Loredana Picciotto
wiley   +1 more source

Holocene development of submerged keep‐up patch reefs on Bermuda without acroporids: A model of future reef accretion

open access: yesThe Depositional Record, EarlyView.
Bermuda patch reefs development was primarily controlled by massive coral framework construction, and variation in environmental energy, turbidity and bioerosion. These factors shaped the size, diversity and preservation of the framework, leading to a suppressed, steady vertical accretion.
Eduardo Islas‐Dominguez   +2 more
wiley   +1 more source

Primary testicular lymphoma: A case report highlighting 18 F-FDG PET/CT role. [PDF]

open access: yesInt J Surg Case Rep
Sfar R   +5 more
europepmc   +1 more source

Diagenetic processes controlled by volcanic detritus of the Lower‐Middle Permian Shanxi and Shihezi sandstone formations, North Ordos Basin, China

open access: yesThe Depositional Record, EarlyView.
Comparisons of Lower‐Middle Permian Shanxi and Lower Shihezi formations from the North Ordos Basin reveal that different types and percentages of volcanic detritus induced by active magmatic cycles can significantly change diagenetic evolution and favourable reservoirs.
Yuanlan Tang   +11 more
wiley   +1 more source

Sedimentary facies and architecture of mixed bioclastic‐siliciclastic deposits forming in an inferred strait environment: An example from the Early Pleistocene of Calabria, southern Italy

open access: yesThe Depositional Record, EarlyView.
Early Pleistocene mixed arenites and their associated conglomerates and sandstones were studied in detail in Calabria, southern Italy. This study suggests that the studied palaeo‐strait was not necessarily a wider and similarly oriented expression of the modern Strait of Messina.
Svea Franke   +3 more
wiley   +1 more source

The Cenomanian–Turonian boundary interval in the Western Canada Foreland Basin: Stratigraphy, geochemistry, geochronology and sea‐level changes recorded in expanded and condensed clastic successions

open access: yesThe Depositional Record, EarlyView.
Shallow‐marine mudstone of the Cretaceous Kaskapau Formation in the British Columbia foredeep preserves a 185 m thick record of OAE2. The organic carbon‐isotope and osmium‐isotope excursions can be correlated in detail with other Cenomanian–Turonian boundary sections around the world.
A. Guy Plint   +12 more
wiley   +1 more source

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