Results 101 to 110 of about 21,735,665 (352)
A problem in the theory of numbers [PDF]
Proceedings of the Edinburgh Mathematical Society, 1890 Let it be required to find the square integral numbers which added to a given integer shall produce a square integer, and the smallest such number.
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FEBS Letters, EarlyView.UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg +2 more
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On the correlation of k symbols
AIMS MathematicsIn 2002 Mauduit and Sárközy started to study finite sequences of $ k $ symbols $ E_{N} = \left(e_{1}, e_{2}, \cdots, e_{N}\right)\in \mathcal{A}^{N}, $ where$ \mathcal{A} = \left\{a_{1}, a_{2}, \cdots, a_{k}\right\}, \ \ (k\in \mathbb{N}, k\geq 2)
Yixin Ren, Huaning Liu
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Quantum solutions of a nonlinear Schrödinger equation [PDF]
Iranian Journal of Numerical Analysis and OptimizationIn the present paper, we precisely conduct a quantum calculus method for the numerical solutions of PDEs. A nonlinear Schrödinger equation is considered. Instead of the known classical discretization methods based on the finite difference scheme, Adomian
S. Arfaoui, Ben Mabrouk
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FEBS Letters, EarlyView.Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel +2 more
wiley +1 more source
SSRN Electronic Journal, 2023 <p>This paper introduces a novel approach to estimating the distribution of of prime numbers by leveraging insights from partition theory, prime number gaps, and the angles of triangles. Application of this methodology to infinite sums and the nth sum, and propose several ways of defining the nth sum of a prime number By using the Ramanujan ...
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FEBS Letters, EarlyView.Most MmpLs transport lipids and glycolipids of the complex mycomembrane of mycobacteria. This study shows that MmpL10 from Mycobacterium smegmatis, the transporter of the trehalose polyphosphate precursor, harbors a coiled‐coil‐like extension. Biochemical and electron microscopy studies demonstrate that the coiled‐coil enables MmpL10 to trimerize.
Julie Couston +7 more
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Evolutionary interplay between viruses and R‐loops
FEBS Letters, EarlyView.Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi +4 more
wiley +1 more source
Foundations of the number theory. [IV.] [PDF]
, 1875 František Josef Studnička
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