Results 21 to 30 of about 283 (216)

On Partially Trace Distance Preserving Maps and Reversible Quantum Channels

open access: yesJournal of Applied Mathematics, 2013
We give a characterization of trace-preserving and positive linear maps preserving trace distance partially, that is, preservers of trace distance of quantum states or pure states rather than all matrices.
Long Jian, Kan He, Qing Yuan, Fei Wang
doaj   +1 more source

Latin-majorization and its linear preservers [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2017
In this paper we study the concept of Latin-majorizati-\on. Geometrically this concept is different from other kinds of majorization in some aspects.
Mohammad Ali Hadian Nadoshan   +1 more
doaj  

Preservers for the p-Norm of Linear Combinations of Positive Operators

open access: yesAbstract and Applied Analysis, 2014
We describe the structure of those transformations on certain sets of positive operators which preserve the p-norm of linear combinations with given nonzero real coefficients. These sets are the collection of all positive pth Schatten-class operators and
Gergő Nagy
doaj   +1 more source

Linear operators preserving L-matrices

open access: yesLinear Algebra and its Applications, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Beasley, LeRoy B., Ye, Shumin
openaire   +2 more sources

Emittance preservation in linear accelerators [PDF]

open access: yesAIP Conference Proceedings, 2001
In linear colliders preservation of the phase space density of charged particles during acceleration to high energies is essential. In practice, the electromagnetic fields which govern the beam transport may not be sufficiently well understood. This may arise, for example, from magnet and structure alignment and/or manufacturing errors, time-varying ...
openaire   +2 more sources

On Zero-Preserving Linear Transformations

open access: yesJournal of Mathematical Analysis and Applications, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carnicer, J.M., Peña, J.M., Pinkus, A.
openaire   +2 more sources

Linear maps preserving orthogonality [PDF]

open access: yesAnnals of Functional Analysis, 2015
We investigate maps between normed spaces which preserve the orthogonality defined by the norm derivative. These maps are showed to be a scalar multiple of an isometry.
Chen, Chaoqun, Lu, Fangyan
openaire   +2 more sources

Upacicalcet: A Novel Intravenous Calcimimetic Agent for Patients Undergoing Hemodialysis With Secondary Hyperparathyroidism

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa   +3 more
wiley   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

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