Results 71 to 80 of about 2,586 (200)

A JWST Study of the Remarkable Oort Cloud Comet C/2017 K2 (PanSTARRS)

open access: yesThe Planetary Science Journal
Comets, during their journeys into the inner solar system, deliver volatile gases, organics, and particulates into their comae that provide crucial information for assessing the physicochemical conditions in the outer disk from which they formed. Here we
Charles E. Woodward   +6 more
doaj   +1 more source

Reconstructing the major skull myology of the giant stem‐amphibian Mastodonsaurus: A case study for early tetrapods

open access: yesJournal of Anatomy, EarlyView.
We reconstruct the major cranial musculature of the giant stem amphibian Mastodonsaurus giganteus, revealing a differentiated jaw‐adductor system, a probable sesamoid pulley, and previously unrecognised muscles. This EPB‐based case study establishes an anatomical framework for modelling feeding in early tetrapods and supports interpretations of ...
Daniel Schwarz   +5 more
wiley   +1 more source

On the mechanism of formation of anomalous comet tails

open access: yesOpen Astronomy
The objective of the study is to investigate the directions of potential collisions between meteoroids and comets. To this end, the inclinations of 99 comet orbits with anomalous tails were calculated in relation to 112 established meteoroid stream ...
Guliyev Ayyub   +2 more
doaj   +1 more source

Local Elites in Chile's Pisco Valley: Dispossession, Legal Mobilisation and Intertwined Citizenship

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT In countries in the Global South, citizenship is often closely tied to access to water and land ownership. In Latin America, the literature has primarily explored social mobilisation and identity reconfiguration in response to development‐driven processes of land and water dispossession affecting peasants, rural and Indigenous communities ...
Chloé Nicolas‐Artero
wiley   +1 more source

Optical and Near-infrared Spectroscopy of the Outbursting Comet 12P/Pons-Brooks

open access: yesThe Astrophysical Journal
We present optical and near-infrared (NIR) observations of the outbursting, Halley-type comet 12P/Pons-Brooks (12P). Three NIR spectra were obtained during two outbursts in 2023 October and November, with the 3 m Infrared Telescope Facility and the ...
Ruining Zhao   +6 more
doaj   +1 more source

Profile of Neonates Admitted With Hypoxic‐Ischemic Encephalopathy and Early Neurodevelopment Outcomes: A Retrospective Cohort Study

open access: yesJournal of Paediatrics and Child Health, EarlyView.
ABSTRACT Objective To evaluate contemporary clinical profiles and early neurodevelopmental outcomes of neonates admitted with hypoxic–ischemic encephalopathy (HIE) in an Australian tertiary perinatal unit. Study Design A retrospective cohort study (2019–2025) of neonates born ≥ 35 weeks' gestation admitted with a diagnosis of HIE.
Visothpong Chhoam   +8 more
wiley   +1 more source

Prediscovery Activity of New Interstellar Object 3I/ATLAS: Rapid Brightening from 6 to 4 au

open access: yesThe Astrophysical Journal Letters
We report on the prediscovery observations and constraints of the new interstellar comet 3I/2025 N1 (ATLAS), made by the Zwicky Transient Facility, for the inbound leg of the comet out to a heliocentric distance of r _h  = 17 au, or approximately a year ...
Quanzhi Ye   +11 more
doaj   +1 more source

Experimental Sleep Restriction Blunts Positive Emotions and Aesthetic Experiences When Viewing Artwork

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Sleep loss influences basic emotional and cognitive processes, but its impact on higher‐order naturalistic cognition, such as aesthetic judgements, is less understood. The current study primarily investigated whether experimental sleep restriction altered aesthetic evaluations of abstract artwork, and secondarily tested whether these ...
Ariadne D. Godinho   +3 more
wiley   +1 more source

Testing MOND on Small Bodies in the Remote Solar System

open access: yesThe Astrophysical Journal
Modified Newtonian dynamics (MOND), which postulates a breakdown of Newton's laws of gravity/dynamics below some critical acceleration threshold, can explain many otherwise puzzling observational phenomena on galactic scales.
David Vokrouhlický   +2 more
doaj   +1 more source

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