Results 101 to 110 of about 458,761 (298)
Improved Kantorovich and Wielandt operator inequalities for positive linear maps
, 2017 This paper improves and generalizes the Kantorovich and Wielandt inequalities for positive linear maps on Hilbert space operators and presents more general and precise results compared to many recent results.
Junliang Wu, Wenshi Liao
core +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Atomic Positive Linear Maps in Matrix Algebras
Publications of the Research Institute for Mathematical Sciences, 1998 We show that all of the known generalizations of the Choi maps are atomic maps.
openaire +3 more sources
A class of atomic positive linear maps in matrix algebras
, 2003 We find a large class of atomic positive linear maps between n-dimensional matrix algebras, and study their properties in connection with complete positivity, 2-positivity and Schwarz ...
Ha, Kil-Chan
core +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Special classes of completely positive linear maps
, 2010 Completely positive linear maps between 'C'*-algebras were originally developed in the 1950's as a special case of positive linear operators between matrix algebras.
O'Meara, Corey Patrick
core
Positive linear maps on operator algebras [PDF]
Communications in Mathematical Physics, 1976 Given a family of completely positive maps, indexed by a group, from aC*-algebra into itself, we are concerned with its dilation to a group of *-automorphisms on a larger algebra. A Schwarz-type inequality forn-positive *-linear mappings from an involutive algebra into the bounded linear operators on a hilbert space is obtained. Strongly continuous one-
openaire +2 more sources
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
KPI Science News, 2019 Background. The brain perfusion ROI detection being a preliminary step, designed to exclude non-brain tissues from analyzed DSC perfusion MR images. Its accuracy is considered as the key factor for delivering correct results of perfusion data analysis ...
Svitlana M. Alkhimova +1 more
doaj +1 more source
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source