1,838 research outputs found
Holistic Processing of Colour Images Using Novel Quaternion-Valued Wavelets on the Plane
We investigate the applicability of quaternion-valued wavelets on the plane
to holistic colour image processing. We present a methodology for decomposing
and reconstructing colour images using quaternionic wavelet filters associated
to recently developed quaternion-valued wavelets on the plane. We consider
compression, enhancement, segmentation, and denoising techniques to demonstrate
quaternion-valued wavelets as a promising tool for holistic colour image
processing
Ariel - Volume 4 Number 3
Editors
David A. Jacoby
Eugenia Miller
Tom Williams
Associate Editors
Paul Bialas
Terry Burt
Michael Leo
Gail Tenikat
Editor Emeritus and Business Manager
Richard J. Bonnano
Movie Editor
Robert Breckenridge
Staff
Richard Blutstein
Mary F. Buechler
Steve Glinks
Len Grasman
Alice M. Johnson
J.D. Kanofsky
Tom Lehman
Dave Mayer
Bernie Odd
Antimicrobial susceptibility profiles of Staphylococcus aureus isolates recovered from humans, environmental surfaces, and companion animals in households of children with community-onset methicillin-resistant S. aureus infections
Our objective was to determine the antibiotic susceptibility profiles of Staphylococcus aureus isolates recovered from 110 households of children with community-onset methicillin-resistant S. aureus (MRSA) infections. Cultures were obtained from household members, household objects, and dogs and cats, yielding 1,633 S. aureus isolates. The S. aureus isolates were heterogeneous, although more than half were methicillin resistant. The highest proportion of MRSA was found in bathrooms. The majority of isolates were susceptible to antibiotics prescribed in outpatient settings
Evaluation of environmental sampling methods for detection of Staphylococcus aureus on fomites
We evaluated a variety of methods to recover S. aureus from inanimate surfaces. Two contact agar plates and three swab sampling methods were tested on porous and non-porous surfaces and bar soap. The cost and ease of use of each method was also evaluated. S. aureus was recovered using all methods on both porous and non-porous surfaces. S. aureus could not be detected on three of four brands of soap
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