Results 41 to 50 of about 1,038,640 (224)
Application of the Ring Theory in the Segmentation of Digital Images [PDF]
, 2014 Ring theory is one of the branches of the abstract algebra that has been broadly used in images. However, ring theory has not been very related with image segmentation.
Garcés, Yasel +3 more
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Dark solitons at nonlinear interfaces [PDF]
, 2010 The refraction of dark solitons at a planar boundary separating two defocusing Kerr media is simulated and analyzed, for the first time (to our knowledge). Analysis is based on the nonlinear Helmholtz equation and is thus valid for any angle of incidence.
Aceves +31 more
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مجلة بغداد للعلوم, 2010 Adult males of cucurbits fruit fly Dacus ciliatus (Loew) emerged from 7 days old pupae that were irradiated with 100 Gray , showed good competitiveness value when released with unirradiated males and females in ratios of 3 : 1: 1 and 5 :1 :1 ...
Hussain . F. Alrubeai +3 more
doaj +1 more source
Ecological Indicators, 2021 Common approaches to estimating habitat quality are habitat suitability indices, which are often subjective. We propose a quantitative definition of habitat quality as the percentage of selected habitat that has a high probability of contributing to ...
Jonathan P. Harris +2 more
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Observations of convection in A-type stars [PDF]
, 2004 Convection and turbulence in stellar atmospheres have a significant effect on the emergent flux from A-type stars. The recent theoretical advancements in convection modelling have proved a challenge to the observers to obtain measurements with sufficient
Smalley, Barry
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Sex Differences in Outcomes after Stroke in Patients with Diabetes in Ontario, Canada. [PDF]
, 2018 BACKGROUND: Outcomes after stroke in those with diabetes are not well characterized, especially by sex and age. We sought to calculate the sex- and age-specific risk of cardiovascular outcomes after ischemic stroke among those with diabetes.
Dhamoon, Mandip S. +5 more
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Phantom maps and the Gray index
Topology and its Applications, 2004 Let \(X\) be a CW complex with skeleta \(X_n\) and let \(q_n: X\to X/X_n\) denote the quotient map. A phantom map \(f:X\to Y\) is a map with the property that, for each \(n\), there is \textit{at least one} map \(f_n:X/X_n\to Y\) such that \(f \simeq f_n \circ q_n\). It may or may not happen that \(f_n\) is itself a phantom map; the Gray index of \(f\)
openaire +2 more sources
Brainstem atrophy in focal epilepsy destabilizes brainstem-brain interactions: Preliminary findings. [PDF]
, 2019 BACKGROUND: MR Imaging has shown atrophy in brainstem regions that were linked to autonomic dysfunction in epilepsy patients. The brainstem projects to and modulates the activation state of several wide-spread cortical/subcortical regions.
Bateman, Lisa M. +4 more
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High Energy Gamma-Ray Emission From PKS 1441+25
, 2017 We present the $\gamma$-ray observations of the flat-spectrum radio quasar PKS 1441+25 (z=0.939), using the {\it Fermi} large Area Telescope data accumulated during January - December 2015.
Gasparyan, S., Sahakyan, N.
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A review of studies mapping (or cross walking) from non-preference based measures of health to generic preference-based measures [PDF]
, 2008 This paper presents a systematic review of current practice in mapping between nonpreference based measures and generic preference-based measures.
Brazier, J.E., Tsuchiya, A., Yang, Y.
core +2 more sources