Results 11 to 20 of about 6,480 (173)

Lenticular Galaxies and Their Environments [PDF]

open access: yesThe Astrophysical Journal, 2009
It is widely believed that lenticular (S0) galaxies were initially spirals from which the gas has been removed by interactions with hot cluster gas, or by ram-pressure stripping of cool gas from spirals that are orbiting within rich clusters of galaxies.
Baade   +23 more
core   +3 more sources

The Invisibility of Scotomas I: The Carving Hypothesis. [PDF]

open access: yesOptom Vis Sci, 2023
SIGNIFICANCE Veridical depictions of scene appearance with scotomas allow better understanding of the impact of field loss and may improve the development and implementation of rehabilitation. Explanation and depiction of the invisibility of scotoma may lead to patients' understanding and thus better compliance with related treatments.
Peli E, Goldstein R, Jung JH.
europepmc   +2 more sources

Comparison between a handheld ultrasound device and a traditional ultrasound for performing transcranial sonography in patients with Parkinson's disease. [PDF]

open access: yesBrain Behav, 2023
Graph 1. The receiver operating characteristic (ROC) curve. The area under the curve is 0.91 with a confidence interval (CI) of 95%: 0.84–0.97. The best substantia nigra cutoff value was 0.20 cm2. Sensitivity = 0.98 and specificity = 0.87. Abstract Objective The aim of this study is to compare a portable ultrasound (US) device and a traditional US for ...
Paes MAS   +5 more
europepmc   +2 more sources

Laboratory exploration of mineral precipitates from Europa's subsurface ocean. [PDF]

open access: yesJ Appl Crystallogr, 2021
Precipitation experiments from a model Europan ocean solution subjected to fast and slow freezing suggest that the highly hydrated Na–Mg sulfate phase Na2Mg(SO4)2·16H2O is one of the lowest‐temperature mineral phases likely to be stable on Europa's surface and may therefore be astrobiologically significant.The precipitation of hydrated phases from a ...
Thompson SP   +5 more
europepmc   +2 more sources

Thick disks of lenticular galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2004
Thick disks are faint and extended stellar components found around several disk galaxies including our Milky Way. The Milky Way thick disk, the only one studied in detail, contains mostly old disk stars (≈ 10 Gyr), so that thick disks are likely to trace the early stages of disk evolution.
M. Pohlen   +3 more
openaire   +3 more sources

Made-to-measure galaxy models - II Elliptical and Lenticular Galaxies [PDF]

open access: yesRoyal Astronomical Society. Monthly Notices, 2012
14 pages, 8 figures and 5 ...
Long, R. J., Mao, Shude
openaire   +3 more sources

Lenticular Galaxy Formation: Possible Luminosity Dependence [PDF]

open access: yesThe Astrophysical Journal, 2007
We investigate the correlation between the bulge effective radius (r_e) and disk scale length (r_d), in the near-infrared K band for lenticular galaxies in the field and in clusters. We find markedly different relations between the two parameters as a function of luminosity.
Barway, Sudhanshu   +4 more
openaire   +2 more sources

Engineering Strategies for Advancing Optical Signal Outputs in Smartphone‐Enabled Point‐of‐Care Diagnostics

open access: yesAdvanced Intelligent Systems, Volume 5, Issue 6, June 2023., 2023
This review discusses the design and application of current smartphone‐based diagnostic devices and highlights challenges associated with existent methods and perspectives on how to deal with those challenges from engineering aspects on the constant color signal acquisition, including smartphone adapter design, color space transformation, machine ...
Kexin Fan   +4 more
wiley   +1 more source

Creating lenticular galaxies with mergers [PDF]

open access: yesProceedings of the International Astronomical Union, 2016
AbstractLenticular galaxies (S0s) represent the majority of early-type galaxies in the local Universe, but their formation channels are still poorly understood. While galaxy mergers are obvious pathways to suppress star formation and increase bulge sizes, the marked parallelism between spiral and lenticular galaxies (e.g.
Querejeta, Miguel   +10 more
openaire   +2 more sources

The role of siliciclastics in carbonate fabric diversity and preservation: A case study from the Neoproterozoic carbonate − siliciclastic Horse Thief Springs Formation, Death Valley

open access: yesSedimentology, Volume 69, Issue 5, Page 2284-2318, August 2022., 2022
Abstract The sedimentary record of the Pahrump Group in Death Valley comprises well‐exposed successions of mixed carbonate and siliciclastic deposits. Despite the abundance of studies focussing on the depositional dynamics of mixed carbonate – siliciclastic deposition in the Phanerozoic, the record of similar Proterozoic examples is comparatively ...
Daniel Smrzka   +7 more
wiley   +1 more source

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