Results 121 to 130 of about 141,402 (295)
Scaling limits of Baxter permutations and bipolar orientations
, 2021 Joint work with Jacopo Borga, https://arxiv.org/abs/2008.09086 . The theory of permutons allows us to express scaling limits of the diagram of permutations.
Maazoun, Mickaël
core +1 more source
Counting parking sequences and parking assortments through permutations [PDF]
Enumerative Combinatorics and Applications, 2023 Spencer J. Franks +4 more
doaj +1 more source
Minimizing the Height of Simple Tangles
Journal of Graph Algorithms and ApplicationsA tangle $T$ of height $h$ describes the ordering of $n$ elements called wires on each of $h$ levels. A pair of wires $ab$ is called a swap. Between any two adjacent levels only the ordering of adjacent wires may swap and each wire may participate in ...
Jakob Baumann, Ignaz Rutter
doaj +1 more source
Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding
FEBS Letters, EarlyView.In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança +2 more
wiley +1 more source
Discrete Mathematics, 1988 The concept of separation of an ordered pair of permutations is introduced and a discrete analogue of Jordan curve theorem, based on this separation, is proved. As the author mentions, his result provides an elementary though somewhat involved proof of the original topological version of this theorem.
openaire +2 more sources
‘Guide and Prejudice’— How Argonautes recognize targets across domains of life
FEBS Letters, EarlyView.Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley +1 more source
Logical limit laws for layered permutations and related structures
Enumerative Combinatorics and Applications, 2021 Samuel Braunfeld, Matthew Kukla
doaj +1 more source
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
CoRR, 2013 Together with a characteristic function, idempotent permutations uniquely determine idempotent maps, as well as their linearly ordered arrangement simultaneously. Furthermore, in-place linear time transformations are possible between them. Hence, they may be important for succinct data structures, information storing, sorting and searching.
openaire +3 more sources
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source