Results 61 to 70 of about 230,048 (301)
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
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
Weak Log-majorization of Unital Trace-preserving Completely Positive Maps
, 2019 Let Φ : Mn → Mn be a unital trace preserving completely positive map and A ∈ Mn be a positive definite matrix. Weak log-majorization and weak majorization between Φ(A) and A are studied.
Lau, Pan Shun, Tam, Tin-Yau
core +1 more source
Distribution of the Crustal Magnetic Field in Sichuan-Yunnan Region, Southwest China
The Scientific World Journal, 2014 Based on the new and higher degree geomagnetic model NGDC-720-V3, we have investigated the spatial distribution, the altitude decay characteristics of the crustal magnetic anomaly, the contributions from different wavelength bands to the anomaly, and the
Chunhua Bai, Guofa Kang, Guoming Gao
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
Comparison of completely positive maps on Hilbert C∗-modules
, 2012 We introduce a preorder relation in the collection of all operator-valued completely positive maps on a full Hilbert C∗-module and characterize this relation in terms of the Stinespring construction associated to each completely positive ...
Joiţa, Maria, Maria Joiţa
core +1 more source
Simulating non-completely positive actions via exponentiation of Hermitian-preserving maps
npj Quantum InformationLegitimate quantum operations must adhere to principles of quantum mechanics, particularly the requirements of complete positivity and trace preservation.
Fuchuan Wei +5 more
doaj +1 more source
ASYMPTOTIC STABILITY I: COMPLETELY POSITIVE MAPS [PDF]
International Journal of Mathematics, 2004 We show that for every "locally finite" unit-preserving completely positive map P acting on a C*, there is a corresponding *-automorphism α of another unital C*-algebra such that the two sequences P, P2, P3, … and α, α2, α3, … have the same asymptotic behavior. The automorphism α is uniquely determined by P up to conjugacy.
openaire +3 more sources
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source
Arithmetic Hecke operators as completely positive maps [PDF]
, 1996 We prove that the arithmetic Hecke operators are completely positive maps with respect to the Berezin's quantization deformation product of functions on H/Gamma. We then show that the associated subfactor defined by the Connes's correspondence associated
Radulescu, F, RADULESCU, FLORIN
core