Results 221 to 230 of about 172,406 (286)

Development of chalcones structure‐related to avobenzone: Photoprotection, photostability, and safety evaluation

open access: yesPhotochemistry and Photobiology, EarlyView.
Scaffold hopping strategy used to develop chalcones structure‐related to the avobenzone tautomer. Positive aspects of 2‐hydroxychalcones are highlighted. Abstract Chalcones are α,β‐unsaturated ketones with extended π‐conjugation, making them promising scaffolds for the development of organic UV filters.
Gabriela Zanella Marcon   +11 more
wiley   +1 more source

Drowned carbonate‐rimmed margin controlling shelf‐edge delta progradation and sedimentation dynamics: Upper Cretaceous Woodbine Formation, Texas, USA

open access: yesSedimentology, EarlyView.
ABSTRACT Shelf‐edge deltas are commonly interpreted to record basinward facies migration across uninterrupted, gently dipping shelf margins; however, examples from mixed siliciclastic‐carbonate margins reveal more complex depositional dynamics. Periods and areas of carbonate sedimentation within mixed siliciclastic‐carbonate margins can modify shelf ...
Abdulkarim Al‐Hussaini   +3 more
wiley   +1 more source

Lunar farside-nearside asymmetry formation during magma ocean solidification. [PDF]

open access: yesNatl Sci Rev
Gu Y   +20 more
europepmc   +1 more source

Transboundary Spanning in Social Movements: Organizational Structure and Antiracism in the US Extinction Rebellion Movement

open access: yesSociological Forum, EarlyView.
ABSTRACT This paper introduces transboundary spanning as a novel concept for social movement analysis. Using Extinction Rebellion (XR) in the United States as a case study, we examine the relational dynamics of social movement boundary spanning: processes wherein actors and organizations engage across symbolic boundaries.
Tobias Müller, Peter Gardner
wiley   +1 more source

Hadean bridgmanite in the source of a present-day ocean island. [PDF]

open access: yesNature
Israel C   +5 more
europepmc   +1 more source

What is a Multi‐Ethnic Party and How to Spot a Fake One?

open access: yesSwiss Political Science Review, EarlyView.
Abstract Multi‐ethnic parties have been variously defined: as those which do not champion the interests of, or mobilize against, any specific ethnic group; as those with a recognisably cross‐communal leadership or membership; and as those which acquire some distribution of support across groups.
Jon Fraenkel
wiley   +1 more source

Links between the Archean hydrosphere and Earth's interior. [PDF]

open access: yesNat Commun
Long ZY   +6 more
europepmc   +1 more source

Fault‐Controlled Permeability: A Key Parameter in Geothermal Electricity Production Assessment

open access: yesTerra Nova, EarlyView.
ABSTRACT Geothermal energy is central to the global green energy transition, but its development has long focused on regions with positive thermal anomalies. Through a semi‐quantitative global‐scale review and spatial analysis of 361 geothermal sites, we show that 56.2% of global geothermal electricity production occurs in regions with thermal ...
Vincent Roche, Gaétan Milesi
wiley   +1 more source

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