Results 41 to 50 of about 2,954,117 (341)

Gaps between logs [PDF]

, 2013
We calculate the limiting gap distribution for the fractional parts of log n, where n runs through all positive integers. By rescaling the sequence, the proof quickly reduces to an argument used by Barra and Gaspard in the context of level spacing ...
Marklof, Jens, Strömbergsson, Andreas
core   +1 more source

Chloroplast genome variation in upland and lowland switchgrass. [PDF]

PLoS ONE, 2011
Switchgrass (Panicum virgatum L.) exists at multiple ploidies and two phenotypically distinct ecotypes. To facilitate interploidal comparisons and to understand the extent of sequence variation within existing breeding pools, two complete switchgrass ...
Hugh A Young, Christina L Lanzatella, Gautam Sarath, Christian M Tobias   +3 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Random Shuffling Permutations of Nucleotides [PDF]

Journal of Systemics, Cybernetics and Informatics, 2003
In this paper, we discuss a shuffling sequence problem: Given a DNA sequence, we generate a random sequence that preserves the frequencies of all mononucleotides, dinucleotides, trinucleotides or some high order base-compositions of the given sequence ...
Shiquan Wu, Xun Gu
doaj  

Nucleotide sequence of the luxA gene of Vibrio harveyi and the complete amino acid sequence of the alpha subunit of bacterial luciferase [PDF]

, 1985
The nucleotide sequence of the 1.85-kilobase EcoRI fragment from Vibrio harveyi that was cloned using a mixed-sequence synthetic oligonucleotide probe (Cohn, D. H., Ogden, R. C., Abelson, J. N., Baldwin, T. O., Nealson, K. H., Simon, M.
Baldwin, Thomas O., Bonam, Duane, Cohn, Daniel H., Mileham, Alan J., Nealson, Kenneth H., Rausch, Steven K., Simon, Melvin I.   +6 more
core  

A spectral sequence to compute L2-Betti numbers of groups and groupoids

, 2009
We construct a spectral sequence for L2-type cohomology groups of discrete measured groupoids. Based on the spectral sequence, we prove the Hopf-Singer conjecture for aspherical manifolds with poly-surface fundamental groups.
Sauer, Roman, Thom, Andreas
core   +1 more source

RAD50 missense variants differentially affect the DNA damage response and mitotic progression

FEBS Letters, EarlyView.
RAD50 incorporates into the MRN complex and initiates the DNA damage response. Furthermore, RAD50 promotes mitotic progression. RAD50 missense variants capable of forming an MRN complex supported the DNA damage response and mitotic features to different extents in complementation experiments, indicating these functions are separable and might impact ...
Hanna Redeker, Swantje Kebel, Lea Völkening, Anna Vatselia, Louisa Weinhold, Girmay Asgedom, Axel Schambach, Detlev Schindler, Thilo Dörk, Kristine Bousset   +9 more
wiley   +1 more source

Gröbner Bases for Increasing Sequences

The Electronic Journal of Combinatorics
Let $q,n \geq 1$ be integers, $[q]=\{1,\ldots, q\}$, and $F$ be a field with $|F|\geq q$. The setof increasing sequences $$I(n,q)=\{(f_1,f_2, \dots, f_n) \in [q]^n:~ f_1\leq f_2\leq\cdots \leq f_n \}$$can be mapped via an injective map $i: [q]\rightarrow F $ into a subset $J(n,q)$ of the affine space $F^n$.
Hegedüs, Gábor, Rónyai, Lajos
openaire   +3 more sources

On the last nonzero digits of $n!$ in a given base

, 2018
In this paper we study the sequence of strings of $k$ last nonzero digits of $n!$ in a given base $b$. We determine for which $b$ this sequence is automatic and show how to generate it using a uniform morphism.
Sobolewski, Bartosz
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source