نتایج جستجو برای: thickness

تعداد نتایج: 109011  

2011
JASON BEHRSTOCK

In this paper we explore relationships between divergence and thick groups, and with the same techniques we estimate lengths of shortest conjugators. We produce examples, for every positive integer n, of CAT (0) groups which are thick of order n and with polynomial divergence of order n + 1, both these phenomena are new. With respect to thickness, these examples show the non-triviality at each ...

Journal: :Acta dermato-venereologica 2015
David Moreno-Ramírez Teresa Ojeda-Vila Juan J Ríos-Martín Adoración Nieto-García Lara Ferrándiz

Age and sex have been identified as predictors of outcome in malignant melanoma (MM). This aim of this multicentre, cross-sectional study was to analyse the role of age and sex as explanatory variables for the diagnosis of thin MM. A total of 2430 patients with MM were recruited. Cases of in situ-T1 MM were more frequent than T2-T4 MM (56.26% vs. 43.74%). Breslow thickness increased throughout ...

Journal: :Archives of disease in childhood 1992
A Lucas S Lockton P S Davies

Forty three infants were assigned randomly to a ready-to-feed infant formula or a standard formula that required reconstitution from powder. Despite similar nutrient composition of the two formulas those fed the powdered formula had significantly increased body weight and skinfold thickness gains, and became significantly heavier than a further group of 20 breast fed infants by 3 and 6 months. ...

Journal: :Discrete Mathematics 2010
Michael O. Albertson Debra L. Boutin Ellen Gethner

A graph has thickness t if the edges can be decomposed into t and no fewer planar layers. We study one aspect of a generalization of Ringel’s famous Earth-Moon problem: what is the largest chromatic number of any thickness-2 graph? In particular, given a graph G we consider the r-inflation of G and find bounds on both the thickness and the chromatic number of the inflated graphs. In some instan...

Journal: :Journal of neuroimaging : official journal of the American Society of Neuroimaging 2006
Haissam Haidar Janet S Soul

OBJECTIVES We aimed to determine the precision of the Laplacian approach for cortical thickness measurement due to changes in computational and acquisition parameters. We compared these results to two other methods widely used in clinical research using brain MRI data. MATERIALS AND METHODS Brain MRI scans were obtained in 10 healthy adults using three different sets of acquisition parameters...

2014
ALESSIO FIGALLI HENRIK SHAHGHOLIAN Luis A. Caffarelli

In this paper we study the fully nonlinear free boundary problem { F (Du) = 1 a.e. in B1 ∩ Ω |Du| ≤ K a.e. in B1 \ Ω, where K > 0, and Ω is an unknown open set. Our main result is the optimal regularity for solutions to this problem: namely, we prove that W 2,n solutions are locally C inside B1. Under the extra condition that Ω ⊃ {Du 6= 0} and a uniform thickness assumption on the coincidence s...

2000
Panagiota Kanti Ian I. Kogan Keith A. Olive Maxim Pospelov

We consider 5-dimensional cosmological solutions of a single brane. The correct cosmology on the brane, i.e., governed by the standard 4-dimensional Friedmann equation, and stable compactification of the extra dimension is guaranteed by the existence of a nonvanishing T̂ 5 5 which is proportional to the 4-dimensional trace of the energy-momentum tensor. We show that this component of the energy-...

Journal: :Acta medica Okayama 2008
Toshi Matsushita Daigo Anami Tadashi Arioka Seiji Inoue Yusuke Kariya Masako Fujimoto Kentaro Ida Nobuya Sasai Mitsumasa Kaji Susumu Kanazawa Ikuo Joja

With the aim of sequence optimization in susceptibility-weighted imaging (SWI), 2 image acquisition parameters (slice thickness and matrix size) and 2 image processing conditions (number of slices per minimum intensity projection (MIP) and Sliding Window) were investigated using a 1.5-T magnetic resonance imaging (MRI) system. The subjects were 12 healthy volunteers and the target region for sc...

Journal: :SIAM J. Numerical Analysis 2016
Marc Dambrine Isabelle Greff Helmut Harbrecht Bénédicte Puig

I will talk about the numerical solution of the Poisson equation on domains with a thin layer of different conductivity and of random thickness. By changing the boundary condition, the boundary value problem given on a random domain is transformed into a boundary value problem on a fixed domain. The randomness is then contained in the coefficients of the new boundary condition. This thin coatin...

Journal: :Magnetic resonance in medicine 2009
Jie Deng Andrew C Larson

Quantitative abdominal T(2) measurements may be useful for lesion differentiation and functional tissue characterization. However, T(2) mapping of the abdomen with conventional spin-echo (SE) and turbo-spin-echo (TSE) approaches can be challenging due to physiologic motion artifacts. Multishot TSE-based PROPELLER (Periodically Rotated Overlapping ParallEL Lines with Enhanced Reconstruction) can...

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