Results 251 to 260 of about 15,991 (314)
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Distributed Constructions of Dual-Failure Fault-Tolerant Distance Preservers
International Symposium on Distributed Computing, 2020Fault tolerant distance preservers (spanners) are sparse subgraphs that preserve (approximate) distances between given pairs of vertices under edge or vertex failures.
M. Parter
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Dorsal Preservation Rhinoplasty: The Perspective of “Preservers” vs. “Structured” Surgeons
Facial Plastic Surgery & Aesthetic MedicineThe objective of this study was to describe the surgeons who have incorporated dorsal preservation (DP) into their practice and their techniques. An anonymous form reviewed by the Evidence–Based Rhinoplasty Research Group board was shared on its Telegram
Mariline Santos +4 more
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A note on local spectral subspace preservers
Linear and multilinear algebra, 2021Let $ \mathcal {L}(X) $ L(X) be the Banach algebra of all bounded linear operators on a complex Banach space X. Let XT({λ}) denote the local spectral subspace of an operator $ T\in \mathcal {L}(X) $ T∈L(X) associated with a singleton $ \{\lambda ...
A. Jaatit
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Linear and multilinear algebra, 2021
S.-Z. Song et. al. [Linear and Multilinear Algebra. 2016;64(7):1258–1265] studied linear operators from to that preserve cp-rank, where denotes the space of n × n real symmetric matrices. One of the results states that a linear operator preserves cp-rank
Naomi Shaked-Monderer
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S.-Z. Song et. al. [Linear and Multilinear Algebra. 2016;64(7):1258–1265] studied linear operators from to that preserve cp-rank, where denotes the space of n × n real symmetric matrices. One of the results states that a linear operator preserves cp-rank
Naomi Shaked-Monderer
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Preservative stability and preservative systems
International Journal of Cosmetic Science, 1985SynopsisThe stability of cosmetics must be examined from a chemical, physical and biological viewpoint. Biological stability is dependent on many factors including preservative effectiveness, preservative stability and the levels of initial and in‐use contamination.Bronopol, a highly active preservative with less than ideal stability in alkaline ...
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New Separations and Reductions for Directed Preservers and Hopsets
arXiv.orgWe study distance preservers, hopsets, and shortcut sets in $n$-node, $m$-edge directed graphs, and show improved bounds and new reductions for various settings of these problems.
Gary Hoppenworth, Yinzhan Xu, Zixuan Xu
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Survey of Ophthalmology, 1989
Significant advances in corneal preservation have been made over the past decade. The introduction of chondroitin sulfate-containing media for use at 4 degrees C allows storage of corneas for up to ten days prior to transplantation. Organ culture techniques have also been improved with the addition of chondroitin sulfate.
S E, Wilson, W M, Bourne
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Significant advances in corneal preservation have been made over the past decade. The introduction of chondroitin sulfate-containing media for use at 4 degrees C allows storage of corneas for up to ten days prior to transplantation. Organ culture techniques have also been improved with the addition of chondroitin sulfate.
S E, Wilson, W M, Bourne
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One-parameter groups of orthogonality preservers on C$$^*$$-algebras
Banach Journal of Mathematical Analysis, 2020We establish a more precise description of those surjective or bijective continuous linear operators preserving orthogonality between C$^*$-algebras.
Jorge J. Garc'es, A. Peralta
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Technologies for Wood Preservation in Historic Preservation
Archives and Museum Informatics, 1999Because of the abundant forests of the world, wood is one of the most common materials found in historic buildings. Wood is relatively easy to fabricate into beams, columns, and roof systems using simple hand tools. However, because of its biological origin, wood is one of the most complex constructions materials.
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Surgical Clinics of North America, 1994
Our clinical transplantation results have been very satisfying, with about 90% graft survival after 1 year. Currently, preservation of the liver, pancreas, and kidney, although not ideal, appears to meet all our clinical needs. Improvements in heart and lung preservation are needed and will result in increasing the number of cadaveric organs available ...
A M, D'Alessandro +3 more
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Our clinical transplantation results have been very satisfying, with about 90% graft survival after 1 year. Currently, preservation of the liver, pancreas, and kidney, although not ideal, appears to meet all our clinical needs. Improvements in heart and lung preservation are needed and will result in increasing the number of cadaveric organs available ...
A M, D'Alessandro +3 more
openaire +2 more sources