Results 41 to 50 of about 13,281,117 (305)

Three dimensional displays of tomographic images using shaded surfaces [PDF]

open access: yes, 1988
Several medical imaging techniques are capable of producing tomographic images, corresponding to cross-sections through the body. A stack of adjacent sections contains three dimensional information about the organs of interest, and this can be presented ...
Gibson, Christopher John
core  

Surface Reconstruction for Three-Dimensional Rockfall Volumetric Analysis

open access: yes, 2019
Laser scanning is routinely being used for the characterization and management of rockfall hazards. A key component of many studies is the ability to use the high-resolution topographic datasets for detailed volume estimates.
Hutchinson, D. Jean   +2 more
core   +1 more source

Three-dimensional reconstruction from projections [PDF]

open access: yes, 1985
summary:Computerized tomograhphy is a technique for computation and visualization of density (i.e. X- or $\gamma$-ray absorption coefficients) distribution over a cross-sectional anatomic plane from a set of projections.
Overton, T. R.   +2 more
core   +1 more source

The Perception of a Three-Dimensional-Printed Heart Model from the Perspective of Different Stakeholders: A Complex Case of Truncus Arteriosus

open access: yesFrontiers in Pediatrics, 2017
The case of an 11-year-old male patient with truncus arteriosus is presented. The patient has a right aortic arch, a repaired truncus arteriosus, pulmonary artery stenosis, as well as conduit stenosis, with a complex surgical plan being discussed.
Giovanni Biglino   +8 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Application of IMR, iDose4 and FBP Reconstruction Algorithms in CT Scanning of Rhinoplasty

open access: yesCT Lilun yu yingyong yanjiu, 2022
Objective: To investigate the effects of IMR, iDose4 and FBP reconstruction algorithms on the image quality of multi-row spiral CT in the chest before costal cartilage rhinoplasty.
Tongjiang XU   +7 more
doaj   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Three-dimensional reconstruction of a patient’s upper airways.

open access: yes, 2019
(A) Three-dimensional reconstruction of a patient’s upper airways without an oral appliance, with a focus on the pharynx region. (B) The same patient’s upper airways with an oral appliance, with a focus on the pharynx region.
Yibo Li (644213)   +6 more
core   +1 more source

Ambiguities in helical reconstruction

open access: yeseLife, 2014
Helical polymers are found throughout biology and account for a substantial fraction of the protein in a cell. These filaments are very attractive for three-dimensional reconstruction from electron micrographs due to the fact that projections of these ...
Edward H Egelman
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

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