Results 121 to 130 of about 25,056,579 (316)

Singular Hochschild Cohomology and Gerstenhaber Algebra Structure [PDF]

open access: yesarXiv, 2015
In this paper, we define the singular Hochschild cohomology groups $HH_{sg}^i(A, A)$ of an associative $k$-algebra $A$ as morphisms from $A$ to $A[i]$ in the singular category $D_{sg}(A\otimes_k A^{op})$ for $i\in \mathbb{Z}$. We prove that $HH_{sg}^*(A, A)$ has a Gerstenhaber algebra structure and in the case of a symmetric algebra $A$, $HH_{sg}^*(A ...
arxiv  

Transition-State Interactions in a Promiscuous Enzyme: Sulfate and Phosphate Monoester Hydrolysis by Pseudomonas aeruginosa Arylsulfatase. [PDF]

open access: yes, 2019
Pseudomonas aeruginosa arylsulfatase (PAS) hydrolyzes sulfate and, promiscuously, phosphate monoesters. Enzyme-catalyzed sulfate transfer is crucial to a wide variety of biological processes, but detailed studies of the mechanistic contributions to its ...
Berry, Ryan   +6 more
core   +3 more sources

Synthesis and stability of arylsulfatase A and B in fibroblasts from multiple sulfatase deficiency.

open access: yesEuropean Journal of Biochemistry, 1985
Fibroblasts from patients with multiple sulfatase deficiency were analyzed for activities of arylsulfatase A and B, iduronate 2-sulfatase and sulfamatase.
F. Steckel, A. Hasilik, K. von Figura
semanticscholar   +1 more source

KCNJ3 is a novel candidate gene for autosomal dominant pure hereditary spastic paraplegia identified using whole genome sequencing

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, Volume 195, Issue 7, October 2024.
Abstract Hereditary spastic paraplegia (HSP) is a group of familial diseases characterized by progressive corticospinal tract degeneration. Clinically, patients present with lower‐limb spasticity and weakness. To date, more than 80 genetic HSP types have been identified.
Woong‐Woo Lee   +2 more
wiley   +1 more source

On Nilary Group Rings [PDF]

open access: yesarXiv, 2014
In a ring $A$ an ideal $I$ is called (principally) nilary if for any two (principal) ideals $V, W$ in $A$ with $VW\subseteq I,$ then either $V^n\subseteq I$ or $W^m\subseteq I,$ for some positive integers $m$ and $n$ depending on $V$ and $W;$ a ring $A$ is called (principally) nilary if the zero ideal is a (principally) nilary ideal~\cite ...
arxiv  

Purification of boar acrosomal arylsulfatase A and possible role in the penetration of cumulus cells.

open access: yesBiology of Reproduction, 1984
Arylsulfatase A was extracted and purified from boar epididymal sperm acrosomes. Acrosomes were extracted by sonication in 50 mM Tris-maleate buffer containing 50 mM MgCl2, pH 6.1, followed by treatment with 50 mM Tris-maleate plus 0.2% Brij-35, pH 6.1 ...
Alan B. Dudkiewicz
semanticscholar   +1 more source

A large gap in a dilate of a set [PDF]

open access: yesarXiv, 2020
Let $A \subset \mathbb{F}_p$ with $|A| > 1$. We show there is a $d \in \mathbb{F}_p^{\times}$ such that $d \cdot A$ contains a gap of size at least $2p/ |A| - 2 $.
arxiv  

Refinements of the inequalities between Neuman-Sandor, arithmetic, contra-harmonic and quadratic means [PDF]

open access: yesarXiv, 2012
In this paper, we prove that the inequalities $\alpha [1/3 Q(a,b)+2/3 A(a,b)]+(1-\alpha)Q^{1/3}(a,b)A^{2/3}(a,b)0$ with $
arxiv  

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