نتایج جستجو برای: horizontal slices

تعداد نتایج: 85043  

Journal: :Photonics 2022

A self-correction method for the drift artifacts of laboratory cone-beam nanoscale X-ray computed tomography (nano-CT) based on trajectory projection centroid (TPC) is proposed. This does not require additional correction phantoms, simplifying process. The whole TPC estimated by partial in optimal set. calculated measured and TPC. interval search used so that proposed can adapt to case a trunca...

Journal: :Annals of Mathematics and Artificial Intelligence 2023

Abstract Many recent studies have shown that Fractal Dimension (FD), a ratio for figuring out the complexity of system given its measurements, can be used as an useful index to provide information about certain brain disease. Our research focuses on Alzheimer’s disease changes in white and grey matters detected through FD indexes their contours. Data this study were obtained from Disease (AD) N...

Journal: :MATEC web of conferences 2021

In the case of Roşia Poieni open pit mine level +805 m was established as a daily operating limit; division into benches based on this by dividing horizontal slices with thickness 15 m, equal to height bench. Thus, there were 27 in Curmătura area and 23 Ruginiş area. The general slope angle set at 35°, for which tailings volumes implicitly opening-up coefficient calculated. stability analysis p...

Journal: :Journal of Geotechnical and Geoenvironmental Engineering 2022

Estimation of nonlinear pile settlement can be simplified using one-dimensional “t-z” curves that conveniently divide the soil into multiple horizontal “slices.” This simplification reduces continuum analysis to a two-point boundary-value problem Winkler type, which tackled by standard numerical procedures. Theoretical established “shearing-of-concentric-cylinders” theory Cooke and Randolph-Wro...

2005
Nora Ripperda

The registration of scan data often uses special markers which are placed in the scene. This leads to a reliable registration but the method is not very efficient. Therefore, we search for a registration method which works without markers. There are methods like the iterative closest point (ICP) algorithm which calculate the registration on the basis of the data itself. However, these algorithm...

2015
Luisa A Ciuffo Ravi Sharma Mohammadali Habibi Bharath Ambale Venkatesh Boaz D Rosen Masamichi Imai Steven Shea Robyn McClelland Colin O Wu Susan R Heckbert David Bluemke Joao A Lima

Methods We performed a nested case-control analysis with 1:2 matching for 39 cases of paroxysmal AF (n=28, in sinus rhythm during cardiac magnetic resonance (CMR)) and HF (n=14, AF+HF; n=3) and 78 controls with similar demographic and clinical characteristics at the baseline (Table 1). LA circumferential (short axis) and longitudinal strain rate (horizontal long axis) were measured using Multi-...

Journal: :Journal of forensic sciences 2008
Jamie K Pringle John Jervis John P Cassella Nigel J Cassidy

A simulated clandestine shallow grave was created within a heterogeneous, made-ground, urban environment where a clothed, plastic resin, human skeleton, animal products, and physiological saline were placed in anatomically correct positions and re-covered to ground level. A series of repeat (time-lapse), near-surface geophysical surveys were undertaken: (1) prior to burial (to act as control), ...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2004
Nao Chuhma Hui Zhang Justine Masson Xiaoxi Zhuang David Sulzer René Hen Stephen Rayport

Dopamine neurons are thought to convey a fast, incentive salience signal, faster than can be mediated by dopamine. A resolution of this paradox may be that midbrain dopamine neurons exert fast excitatory actions. Using transgenic mice with fluorescent dopamine neurons, in which the axonal projections of the neurons are visible, we made horizontal brain slices encompassing the mesoaccumbens dopa...

2003
Anjen Chenn Susan K. McConnell

Neurons in the mammalian central nervous system are generated from progenitor cells near the lumen of the neural tube. Time-lapse microscopy of dividing cells in slices of developing cerebral cortex reveals that cleavage orientation predicts the fates of daughter cells. Vertical cleavages produce behaviorally and morphologically identical daughters that resemble precursor cells; these symmetric...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2008
Kimberly J Harms Mengia S Rioult-Pedotti D Rosy Carter Anna Dunaevsky

Experience-dependent regulation of synaptic strength in the horizontal connections in layer 1 of the primary motor cortex is likely to play an important role in motor learning. Dendritic spines, the primary sites of excitatory synapses in the brain, are known to change shape in response to various experimental stimuli. We used a rat motor learning model to examine connection strength via field ...

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