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   Articles with "density" as a keyword



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Comparison of Melanocyte Density Counts in Topical Imiquimod-Treated Skin Surrounding Lentigo Maligna vs Control Biopsy Specimens

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recommendations! Published in 2018 at "JAMA Dermatology"

DOI: 10.1001/jamadermatol.2017.5632

Abstract: This study examines melanocyte density counts in imiquimod-treated lentigo maligna and negative control biopsy specimens to determine if there was a measurable difference in melanocyte density. read more here.

Keywords: lentigo maligna; melanocyte density; density counts; control biopsy ... See more keywords
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Spectral-Domain Optical Coherence Tomographic Angiography in Children With Amblyopia

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recommendations! Published in 2017 at "JAMA Ophthalmology"

DOI: 10.1001/jamaophthalmol.2017.3423

Abstract: Importance Amblyopia is the most common cause of visual impairment in childhood, with a prevalence of 1% to 4% in children in the United States. To date, no studies using noninvasive optical coherence tomographic angiography… read more here.

Keywords: optical coherence; tomographic angiography; control; ophthalmology ... See more keywords
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Repeatability and Reproducibility of Superficial Macular Retinal Vessel Density Measurements Using Optical Coherence Tomography Angiography En Face Images

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recommendations! Published in 2017 at "JAMA Ophthalmology"

DOI: 10.1001/jamaophthalmol.2017.3431

Abstract: Importance The repeatability and reproducibility of quantitative metrics from optical coherence tomographic angiography (OCTA) must be assessed before these data can be confidently interpreted in clinical research and practice. Objective To evaluate the repeatability and… read more here.

Keywords: optical coherence; reproducibility; repeatability reproducibility; density ... See more keywords
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Association of Intravitreal Aflibercept With Optical Coherence Tomography Angiography Vessel Density in Patients With Proliferative Diabetic Retinopathy: A Secondary Analysis of a Randomized Clinical Trial.

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recommendations! Published in 2020 at "JAMA ophthalmology"

DOI: 10.1001/jamaophthalmol.2020.2130

Abstract: Importance Although previous studies have evaluated the association between anti-vascular endothelial growth factor therapy and macular vessel density, they were confounded by the presence of macular edema, which may be associated with artifacts and segmentation… read more here.

Keywords: trial; diabetic retinopathy; analysis; density ... See more keywords
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Ionospheric electron density inversion for Global Navigation Satellite Systems radio occultation using aided Abel inversions

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016ja023027

Abstract: The Abel inversion of ionospheric electron density profiles with the assumption of spherical symmetry applied for radio occultation soundings could introduce a greater systematic error or sometimes artifacts if the occultation rays trespass regions with… read more here.

Keywords: electron density; inversion; aided abel; density ... See more keywords
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North-south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations†

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016ja023404

Abstract: In this paper, we present observations of cold (0-70 eV) plasma density in the magnetotail lobes. The observations and results are based on 16 years of Cluster observation of spacecraft potential measurements converted into local… read more here.

Keywords: north south; cold plasma; density; density magnetotail ... See more keywords
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Neutral wind and density perturbations in the thermosphere created by gravity waves observed by the TIDDBIT sounder

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016ja023828

Abstract: In this paper, we study the 10 traveling ionospheric disturbances (TIDs) observed at zobs∼283 km by the TIDDBIT ionospheric sounder on 30 October 2007 at 0400-0700 UT near Wallops Island, USA. These TIDs propagated northwest/northward,… read more here.

Keywords: wind; gravity waves; neutral wind; density ... See more keywords
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Electron density extrapolation above F2 peak by the linear Vary-Chap model supporting new Global Navigation Satellite Systems-LEO occultation missions: ELECTRON DENSITY EXTRAPOLATION

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017ja023876

Abstract: The new radio-occultation (RO) instrument on board the future EUMETSAT Polar System-Second Generation (EPS-SG) satellites, flying at a height of 820 km, is primarily focusing on neutral atmospheric profiling. It will also provide an opportunity… read more here.

Keywords: vary chap; density extrapolation; electron density; density ... See more keywords
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Investigating the Development of Localized Neutral Density Increases During the 24 August 2005 Geomagnetic Storm

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017ja024362

Abstract: We investigate localized thermospheric neutral density increases (or density spikes) developed during the 24 August 2005 geomagnetic storm and utilize a multi-instrument database for monitoring the underlying thermospheric, ionospheric, magnetospheric, and solar wind conditions. We… read more here.

Keywords: neutral density; density; density increases; development ... See more keywords
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Nightside Pi2 Wave Properties During an Extended Period With Stable Plasmapause Location and Variable Geomagnetic Activity

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017ja024708

Abstract: The frequencies and amplitudes of inner magnetosphere Pi2 waves are affected by the radial plasma density profile. Variable geomagnetic activity and external driving conditions can affect both wave properties and density profiles simultaneously. When interpreting… read more here.

Keywords: pi2 wave; density; wave properties; variable geomagnetic ... See more keywords
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Monte Carlo Approach for Estimating Density and Atomic Number From Dual‐Energy Computed Tomography Images of Carbonate Rocks

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jb014408

Abstract: We develop a new Monte Carlo-based inversion method for estimating electron density and effective atomic number from 3D dual-energy computed tomography (CT) core scans. The method accounts for uncertainties in X-ray attenuation coefficients resulting from… read more here.

Keywords: monte carlo; density; number dual; atomic number ... See more keywords