Results 111 to 120 of about 33,036 (248)

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

About distribution and origin of the peculiar group of sporadic meteors [PDF]

open access: yes
A particular group of sporadic meteors are picked out from analysis of meteor catalogs derived from results of radar observations in Mogadisho and Kharkov.
Andreev, V. V.
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

The Effect of Dwarf’s Planets Pluto and Eris upon Long Period Comets

open access: yesJournal of Kufa-Physics, 2017
The orbit of long period comets overlapped with that of dwarf’s planet Pluto and Eris. The gravitational effects arise from dwarf’s planets as well as the eight planets   have been involved in orbits calculations.
Hayder Hasan Jawad
doaj  

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

Assessment of Volume Status in Chronic Hemodialysis: Comparison of Lung Ultrasound to Clinical Practice and Bioimpedance

open access: yesSiriraj Medical Journal, 2023
Objective: To compare LUS with other volume assessment methods, and to verify the prognostic value of LUS in Thai chronic HD patients. Materials and Methods: We conducted a prospective cohort study in 36 chronic HD patients.
Kornchanok Vareesangthip   +4 more
doaj  

EVOLUTIONARY TRACKS OF SHORT-PERIODIC METEOR SWARMS

open access: yesOdessa Astronomical Publications, 2017
The relations of the meteor streams with comets and asteroids are determined by means of the  physical and dynamic properties of these bodies. The mathematical model is considered for the short-periodic meteor stream, the particles of which are ejected ...
E. N. Kramer   +2 more
doaj   +1 more source

Compromised DNA replication in gut cells underlies sensitivity to genotoxic stress in the tardigrade Hypsibius exemplaris

open access: yesThe FEBS Journal, EarlyView.
DNA damage in the tardigrade Hypsibius exemplaris elicits distinct cellular outcomes depending on replication status. While non‐replicating cells tolerate genotoxic stress, constitutively replicating cells undergo irreversible replication failure upon DNA damage, leading to loss of tissue homeostasis, fat depletion, sterility, and organismal death ...
Gonzalo Quiroga‐Artigas   +4 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

The 1986 DA and 1986 EB: M-class asteroids in near-Earth orbits [PDF]

open access: yes
The Earth-approaching asteroid population is composed of asteroids in orbits with short lifetimes compared with the age of the solar system. These objects which are comprised of Aten, Apollo, and Amor asteroids must be replenished from either cometary or
Gradie, Jonathan, Tedesco, Edward
core   +1 more source

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