Results 221 to 230 of about 466,978 (244)

Carbon dots as a smart nanoplatform for the blood‐brain barrier penetration and ischemic stroke therapy

open access: yesResponsive Materials, EarlyView.
This review presents the structure and transport routes of the blood‐brain barrier, summarizes the ischemic stroke pathophysiological cascade, and discusses the BBB‐crossing mechanisms and multitarget therapeutic effects of carbon dots, demonstrating their promising theranostic potential for ischemic stroke.
Yanhan Huang   +6 more
wiley   +1 more source

Discovery and Fine‐Scale Mapping of Hadal Xenophyophore Habitat in the Nova Canton Trough, Central Pacific Ocean

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Discovery and fine‐scale mapping of a hadal xenophyophore field: submersible video transects and photogrammetry enable semi‐automated delineation of xenophyophores, revealing their abundance, spatial organisation, structural complexity and contribution to habitat heterogeneity at ~8000 m depth.
Denise J. B. Swanborn   +5 more
wiley   +1 more source

A Transferable Individual‐Based Framework for Quantifying Demographic Structure and Spatial Organization in Colonial Species Using UAV Imagery

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Adélie penguins gather in colonies as standing or prone adults, individual chicks, and chick crèches. From drone images, we distinguish adults and chicks by their plumage, identify adult postures by body shape, and estimate the size of chick groups from the area they occupy. We map these groups and measure how closely penguins live together.
Junqi Qin   +4 more
wiley   +1 more source

Cultivating Sustainability: How Modern Food Practices Shape Pro‐Environmental Motivation Through Food–Nature Associations

open access: yesSustainable Development, EarlyView.
ABSTRACT Food practices have evolved alongside industrialization and urbanization. Compared to earlier generations, modern individuals grow and cook food less often and consume more processed products, weakening awareness of food's natural origins. Three studies examined explanatory pathways linking food practices to pro‐environmentalism through the ...
Shu Tian Ng, Angela K.‐y. Leung
wiley   +1 more source

Multi-omics-driven precision medicine. [PDF]

open access: yesImeta
Li H   +20 more
europepmc   +1 more source

Recurrent novae: Single degenerate progenitors of Type Ia supernovae

open access: yesJournal of Astrophysics and Astronomy, 2020
Type Ia supernovae are the result of explosive thermonuclear burning in CO white dwarfs. The progenitors of the Ia supernovae are white dwarfs in an interacting binary system.
Pavana Muralimohan, Anupama G. C.
exaly   +2 more sources

Gamma rays from nebulae around recurrent novae [PDF]

open access: yesJournal of High Energy Astrophysics, 2023
Novae were discovered to emit transient gamma rays during the period of several days to a few weeks after initial explosion, indicating presence of acceleration processes of particles in their expanding shells.
Julian Sitarek, Wlodek Bednarek
exaly   +1 more source

A triple star origin for T Pyx and other short-period recurrent novae [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
Recurrent novae are star systems in which a massive white dwarf accretes material at such a high rate that it undergoes thermonuclear runaways every 1-100 yr.
Christian Knigge   +2 more
exaly   +2 more sources

The Recurrent Novae and Their Relation with Classical Novae

open access: yesAIP Conference Proceedings, 2002
Recurrent novae (RNe) are a subclass of cataclysmic variables classified based on recorded observations of more than one nova outburst. They form a small, but heterogeneous group of objects, with 10 known members, that undergo classical nova‐like ...
Anupama G. C.
exaly   +2 more sources

X-ray emission from classical and recurrent novae observed with ROSAT

open access: yesAstronomy and Astrophysics, 2001
We have analysed 350 pointed and serendipitous observations of 108 different classical and recurrent novae in outburst and in quiescence, contained in the ROSAT archive.
Marina Orio, H Ogelman
exaly   +2 more sources

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