Results 141 to 150 of about 3,238,598 (346)

Application of Three-Dimensional Volumetric Ultrasonography in Patients with Bladder Cancer and Its Mimickers: A Pictorial Essay

open access: yes대한영상의학회지, 2017
Various diseases of the urinary bladder can be demonstrated as being polypoid, a nodular bladder mass or as focal bladder wall thickening. This includes malignant or benign neoplasms, urinary stones, or other inflammatory bladder conditions.
Sujin Ko   +3 more
doaj   +1 more source

Live-cell multiplane three-dimensional super-resolution optical fluctuation imaging

open access: yesNature Communications, 2014
Super-resolution optical fluctuation imaging (SOFI) provides an elegant way of overcoming the diffraction limit in all three spatial dimensions by computing higher-order cumulants of image sequences of blinking fluorophores acquired with a classical ...
S. Geissbuehler   +12 more
semanticscholar   +1 more source

Matrigel inhibits elongation and drives endoderm differentiation in aggregates of mouse embryonic stem cells

open access: yesFEBS Open Bio, EarlyView.
Stem cell‐based embryo models (SCBEMs) are valuable to study early developmental milestones. Matrigel, a basement membrane matrix, is a critical substrate used in various SCBEM protocols, but its role in driving stem cell lineage commitment is not clearly defined.
Atoosa Amel   +3 more
wiley   +1 more source

Three-dimensional visualisation of tracks in OPERA nuclear emulsion films [PDF]

open access: yes, 2005
The possibility of a three-dimensional visualisation/reconstruction of tracks in nuclear emulsion films using X-ray imaging is described in this paper.
Damet, Jerome   +2 more
core   +3 more sources

Refractive Index Matched Scanning and Detection of Soft Particle

open access: yes, 2017
We describe here how to apply the three dimensional imaging technique of refrecative index matched scanning to hydrogel spheres. Hydrogels are water based materials with a low refractive index, which allows for index matching with water-based solvent ...
Behringer, R. P.   +2 more
core   +1 more source

An approach for coherent periodogram averaging of tilt‐series data for improved contrast transfer function estimation

open access: yesFEBS Open Bio, EarlyView.
The contrast transfer function (CTF) is an imaging aberration that is a major resolution‐limiting factor in cryo‐electron microscopy (cryo‐EM). Precise CTF estimation is key to overcoming this limitation, but is particularly challenging in cryo‐electron tomography (cryo‐ET) data. Here, we present an approach for using geometric information to assist in
Sagar Khavnekar, William Wan
wiley   +1 more source

A self-consistent framework to study magnetic fields with strong gravitational lensing and polarised radio sources [PDF]

open access: yesarXiv
We introduce a unified approach that, given a strong gravitationally lensed polarised source, self-consistently infers its complex surface brightness distribution and the lens galaxy mass-density profile, magnetic field and electron density from interferometric data.
arxiv  

Super-resolution single-beam imaging via compressive sampling [PDF]

open access: yesarXiv, 2010
Based on compressive sampling techniques and short exposure imaging, super-resolution imaging with thermal light is experimentally demonstrated exploiting the sparse prior property of images for standard conventional imaging system. Differences between super-resolution imaging demonstrated in this letter and super-resolution ghost imaging via ...
arxiv  

High-resolution three-dimensional imaging radar [PDF]

open access: yes, 2010
A three-dimensional imaging radar operating at high frequency e.g., 670 GHz, is disclosed. The active target illumination inherent in radar solves the problem of low signal power and narrow-band detection by using submillimeter heterodyne mixer receivers.
Chattopadhyay, Goutam   +6 more
core   +1 more source

Analysis of Three-Dimensional Protein Images

open access: yesJournal of Artificial Intelligence Research, 1997
A fundamental goal of research in molecular biology is to understand protein structure. Protein crystallography is currently the most successful method for determining the three-dimensional (3D) conformation of a protein, yet it remains labor intensive and relies on an expert's ability to derive and evaluate a protein scene model.
Janice I. Glasgow   +4 more
openaire   +5 more sources

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