Results 91 to 100 of about 2,437 (254)

A survey of debris trails from short-period comets

open access: yes
We observed 34 comets using the 24 micron camera on the Spitzer Space Telescope. Each image contains the nucleus and covers at least 10^6 km of each comet\u27s orbit.
Sykes, Mark V.   +2 more
core   +1 more source

Psychedelic‐assisted treatment for substance use disorder: A narrative systematic review

open access: yesAddiction, EarlyView.
Abstract Background and aims This is the first systematic review of the extant literature on all major psychedelic‐assisted treatment for alcohol use disorder (AUD), tobacco use disorder (TUD) and other substance use disorders (SUD). We aimed to summarise the evidence for efficacy of psychedelic‐assisted treatment for AUD, TUD, and SUD; to evaluate its
Theodore Piper   +7 more
wiley   +1 more source

The investigation of precision by Everhart method of orbital evolution of the asteroids Apollo, Amur, Aten groups and short-period comets

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2008
: Investigation of evolution of the orbits 190 asteroids having closely approach with Earth is carried. The results of calculations with other investigators are compared.
A. A. Zausaev, A. F. Zausaev
doaj   +1 more source

Long-term orbital evolution of short-period comets found in Project Cosmo-DICE

open access: yes, 1992
Orbital evolutions of about 160 short-period (SP) comets are numerically integrated for 4400 years in the framework of a realistic dynamical model. By the round-trip error in closure test, a reliable time space of the integrated orbits is estimated for ...
Nakamura, Tsuko, Yoshikawa, Makoto
core  

Intervention outcomes of children with non‐degenerative dystonia and associated hyperkinetic movement disorders: A scoping review

open access: yesDevelopmental Medicine &Child Neurology, EarlyView.
Abstract Aim To identify the outcomes reported in published studies of intervention approaches used with non‐degenerative childhood hyperkinetic movement disorders, including dystonia, dyskinesia, hypertonia, athetosis, chorea, cerebral palsy, involuntary movement, and kernicterus, and map them to the International Classification of Functioning ...
Hortensia Gimeno   +10 more
wiley   +1 more source

JWST and Gemini Observations of the Active Centaur 450P/LONEOS: Nucleus and Coma Characterizations

open access: yesThe Planetary Science Journal
Between 2019 and 2024, we used the Gemini-N and JWST observatories to conduct a detailed case study of the active Centaur 450P/LONEOS, whose orbit was significantly altered by a close Saturn encounter in 1992.
Charles A. Schambeau   +18 more
doaj   +1 more source

Nongravitational forces on comets

open access: yes, 1976
Methods are presented and discussed for determining the effects of nongravitational forces on the orbits of comets. These methods are applied to short-period and long-period comets.
Marsden, B. G.
core  

Where do comets fit in the astrophysical puzzle?

open access: yes, 2023
Comets are one of our most direct links to the conditions present in the early Solar System. They have retained volatiles with ice sublimation temperatures as low as ~20 K, not only indicating that they formed in cold regions of the solar system’s ...
Wong, Ian   +7 more
core   +1 more source

Primary cardiac T‐cell rich large B‐cell lymphoma causing aortic stenosis with metastasis in a Warmblood

open access: yesEquine Veterinary Education, EarlyView.
Summary An 18‐year‐old Warmblood mare was presented to the Royal Veterinary College Equine Referral Hospital for investigation of progressive periocular and facial swelling, weight loss and tachycardia. Physical examination additionally identified bilateral pansystolic (grade 5/6 basilar left‐sided, 2/6 right‐sided), cardiac murmurs, submandibular ...
S. E. Talbot   +4 more
wiley   +1 more source

Assessment of early-modern observations of comets and supernovae: Focus on pre-telescopic European astrometric and physical data [PDF]

open access: yes, 2004
The two-century period prior to the publication of Newton's Principia (first edition 1687; third edition 1726) was most important in terms of the radical changes that occurred in the observation, perception, and understanding of celestial objects that in
Green, Daniel W. E., Green, Daniel W E
core  

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