Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Brain MR elastography (MRE) is uniquely sensitive to subject motion, as even small phase deviations can produce large errors in the mechanical properties estimated. Existing motion correction strategies have not been validated for MRE and are often incompatible with complex multi‐shot or joint temporal reconstructions.
Zhuoyu Shi +2 more
wiley +1 more source
The Planetary Science JournalThe study of cometary composition is important for understanding our solar system's early evolutionary processes. Carbon dioxide (CO _2 ) is a common hypervolatile in comets that can drive activity but is more difficult to study than other hypervolatiles
Mikayla R. Huffman +2 more
doaj +1 more source
Phase Curves of Kuiper Belt Objects, Centaurs, and Jupiter-family Comets from the ATLAS Survey
The Planetary Science Journal, 2023 The Kuiper Belt objects (KBOs), the Centaurs, and the Jupiter-family comets (JFCs) form an evolutionary continuum of small outer solar system objects, and their study allows us to gain insight into the history and evolution of the solar system. Broadband
Matthew M. Dobson +11 more
doaj +1 more source
The magnitude distribution and evolution of short-period comets [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 The magnitude distribution, perihelion distribution, nucleus size variation and evolution of the short-period comet population are re-assessed. Short-period comets with perihelion distances greater than 2 au have a magnitude distribution index of about 2.3, similar to that of the long-period comets.
openaire +1 more source
Observational results for eight long-period comets observed far from the Sun [PDF]
, 2013 Context. With this work we start a systematic analysis of the distant activity of several Long Period Comets, in order to investigate the evolution of activity throughout the Solar System and explore differences between comets that pass their perihelion
Mazzotta Epifani, E. +23 more
core +1 more source
Continuous Respiratory Oscillometry in Pediatric Laparoscopic Surgery—The COMET Study
Pediatric Anesthesia, EarlyView.ABSTRACT Background Laparoscopic appendectomy is the accepted surgical approach for appendicitis in centers worldwide. Laparoscopic surgery requires the creation of a pneumoperitoneum to facilitate surgical access. Laparoscopic surgery affects the respiratory mechanics of patients under general anesthesia.
Neil Hauser +9 more
wiley +1 more source
Gas Sources from the Coma and Nucleus of Comet 46P/Wirtanen Observed Using ALMA
The Astrophysical Journal, 2023 Gas-phase molecules in cometary atmospheres (comae) originate primarily from (1) outgassing by the nucleus, (2) sublimation of icy grains in the near-nucleus coma, and (3) coma (photo)chemical processes.
M. A. Cordiner +12 more
doaj +1 more source
Polymer Engineering &Science, EarlyView.Schematic overview of the study approach and key findings. ABSTRACT To evaluate the influence of extrusion on material performance, three processing methods, single extrusion (1x Ex), double extrusion (2x Ex), and double screw compounding (C), were investigated for virgin polypropylene (vPP), recycled PP (rPP), and a blend containing 10% rPP (rPP10 ...
J. Pötzlbauer +8 more
wiley +1 more source
Free Energies of Reaction for Aqueous Glycine Condensation Chemistry at Extreme Temperatures
Geophysical Monograph Series, Page 271-283., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Matthew Kroonblawd, Nir Goldman
wiley +1 more source
Dynamics of long period comets [PDF]
, 1987 The appearance of Halley's Comet in 1985 to 1986 and the related emphasis on research on physical models of cometary nuclei, led to a more moderate pace for the dynamical studies of the Oort cloud and the motion of long-period comets this year.
Weissman, Paul R.
core