Results 61 to 70 of about 1,487,509 (274)
MATRIX VALUATION PSEUDO RING (MVPR) AND AN EXTENSION THEOREM OF MATRIX VALUATION [PDF]
Journal of Sciences, Islamic Republic of Iran, 2002 Let R be a ring and V be a matrix valuation on R. It is shown that, there exists a correspondence between matrix valuations on R and some special subsets ?(MVPR) of the set of all square matrices over R, analogous to the correspondence between invariant ...
doaj
Uniform definability of henselian valuation rings in the Macintyre language [PDF]
, 2014 We discuss definability of henselian valuation rings in the Macintyre language L Mac , the language of rings expanded by n th power predicates. In particular, we show that henselian valuation rings with finite or Hilbertian residue field are uniformly ∃ ‐
Arno Fehm, A. Prestel
semanticscholar +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
INITIAL RAMIFICATION INDEX OF NONINVARIANT VALUATIONS ON FINITE DIMENSIONAL DIVISION ALGEBRAS [PDF]
Journal of Sciences, Islamic Republic of Iran, 1997 Let D be a division ring with centre K and dim, D< ? a valuation on K and v a noninvariant extension of ? to D. We define the initial ramfication index of v over ?, ?(v/ ?) .Let A be a valuation ring of o with maximal ideal m, and v , v ,…, v ...
doaj
Insights Into Principal Ideal Rings and Their Hereditary Properties
Journal of MathematicsIn this paper, we investigate principal ideal rings (PIRs). Specifically, we prove that every local PIR is either a 2-strongly Gorenstein semisimple ring or a discrete valuation ring, which leads to the establishment of the Gorenstein hereditary property
Jin Xie +3 more
doaj +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Valuation Rings in Ore Extensions
Journal of Algebra, 2001 By a valued skew field the authors understand a pair \((K,V)\) consisting of a skew field \(K\) and a total subring \(V\) of \(K\), i.e. a subring such that \(a\not\in K\setminus V\) implies \(a^{-1}\in V\) (this is called a valuation ring by the authors but it seems better to reserve that term for total subrings admitting all inner automorphisms ...
Brungs, H.H, Schröder, M
openaire +2 more sources
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Quotient Sheaves and Valuation Rings [PDF]
Transactions of the American Mathematical Society, 1972 In this paper a construction of a quotient sheaf of a sheaf of rings is given. This construction is analogous to the Utumi ring of quotients of a ring. For a valuation ring V , a sheaf of rings corresponding to V is introduced and its quotient sheaf is ...
openaire +1 more source