Results 21 to 30 of about 45,065 (216)

Universal Shapes? Analysis of the Shape of Antarctic Tafoni [PDF]

open access: yesGeosciences, 2019
Using dimensional data from over 700 tafoni in Antarctica, this paper identifies how the dimensionless ratios of width/length (W/L) and depth/length (D/L) vary with tafoni length. The analysis suggests that these ratios do tend to converge to values that are similar to those found for fragments produced by brittle fracture and fragmentation.
Inkpen, Rob, Hall, Kevin
openaire   +3 more sources

Fine scale hippocampus morphology variation cross 552 healthy subjects from age 20 to 80

open access: yesFrontiers in Neuroscience, 2023
The cerebral cortex varies over the course of a person's life span: at birth, the surface is smooth, before becoming more bumpy (deeper sulci and thicker gyri) in middle age, and thinner in senior years. In this work, a similar phenomenon was observed on
Qinzhu Yang   +12 more
doaj   +1 more source

Segmentation and Shape Analysis of Macrophages Using Anglegram Analysis

open access: yesJournal of Imaging, 2017
Cell migration is crucial in many processes of development and maintenance of multicellular organisms and it can also be related to disease, e.g., Cancer metastasis, when cells migrate to organs different to where they originate.
José Alonso Solís-Lemus   +3 more
doaj   +1 more source

A Low-Cost, Repeatable Method for 3D Particle Analysis with SfM Photogrammetry

open access: yesGeosciences, 2023
The characterisation of particle shape is an important analysis in the field of sedimentary geology. At finer scales, it is key for understanding sediment transport while at coarser scales, such as boulders, it is vital for coastal protection.
Mohit Tunwal, Aaron Lim
doaj   +1 more source

A 7 Tesla Amygdalar-Hippocampal Shape Analysis of Lithium Response in Bipolar Disorder

open access: yesFrontiers in Psychiatry, 2021
Research to discover clinically useful predictors of lithium response in patients with bipolar disorder has largely found them to be elusive. We demonstrate here that detailed neuroimaging may have the potential to fill this important gap in mood ...
Thomas L. Athey   +23 more
doaj   +1 more source

Extreme Shape Analysis

open access: yesJournal of the Royal Statistical Society Series C: Applied Statistics, 2005
SummaryWe consider the analysis of extreme shapes rather than the more usual mean- and variance-based shape analysis. In particular, we consider extreme shape analysis in two applications: human muscle fibre images, where we compare healthy and diseased muscles, and temporal sequences of DNA shapes from molecular dynamics simulations.
Dryden, Ian L., Zempléni, András
openaire   +1 more source

Lazy Shape Analysis [PDF]

open access: yes, 2006
Many software model checkers are based on predicate abstraction. If the verification goal depends on pointer structures, the approach does not work well, because it is difficult to find adequate predicate abstractions for the heap. In contrast, shape analysis, which uses graph-based heap abstractions, can provide a compact representation of ...
Dirk Beyer 0001   +2 more
openaire   +5 more sources

Pairwise Harmonics for Shape Analysis [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2013
This paper introduces a simple yet effective shape analysis mechanism for geometry processing. Unlike traditional shape analysis techniques which compute descriptors per surface point up to certain neighborhoods, we introduce a shape analysis framework in which the descriptors are based on pairs of surface points.
Youyi Zheng   +3 more
openaire   +3 more sources

Statistical Shape Analysis of Large Datasets Based on Diffeomorphic Iterative Centroids

open access: yesFrontiers in Neuroscience, 2018
In this paper, we propose an approach for template-based shape analysis of large datasets, using diffeomorphic centroids as atlas shapes. Diffeomorphic centroid methods fit in the Large Deformation Diffeomorphic Metric Mapping (LDDMM) framework and use ...
Claire Cury   +22 more
doaj   +1 more source

Morphometry Difference of the Hippocampal Formation Between Blind and Sighted Individuals

open access: yesFrontiers in Neuroscience, 2021
The detailed morphometry alterations of the human hippocampal formation (HF) for blind individuals are still understudied. 50 subjects were recruited from Yantai Affiliated Hospital of Binzhou Medical University, including 16 congenital blindness, 14 ...
Ningning Pan   +8 more
doaj   +1 more source

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