Results 121 to 130 of about 6,337,317 (349)

Formation of task representations and replay in mouse medial prefrontal cortex

open access: yeseLife
The medial prefrontal cortex (mPFC) is thought to support cognitive flexibility by forming and maintaining generalized representations of abstract tasks.
Hamed Shabani   +5 more
doaj   +1 more source

Exploring the temporal structure of heterochronous sequences using TempEst (formerly Path-O-Gen)

open access: yesVirus Evolution, 2016
Gene sequences sampled at different points in time can be used to infer molecular phylogenies on a natural timescale of months or years, provided that the sequences in question undergo measurable amounts of evolutionary change between sampling times ...
A. Rambaut   +3 more
semanticscholar   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

On the Seismic Response of Composite Structures Equipped with Wall Dampers Under Multiple Earthquakes

open access: yesModelling
This study investigates the seismic performance of two-, four-, and six-story composite buildings equipped with viscous wall dampers, focusing on structures with concrete-filled steel tubular (CFST) columns and steel beams. Through nonlinear time history
Panagiota Katsimpini
doaj   +1 more source

Porcine Rotavirus Closely Related to Novel Group of Human Rotaviruses

open access: yesEmerging Infectious Diseases, 2011
We determined nucleotide sequences and inferred amino acid sequences of viral protein (VP) 4, VP6, VP7, and nonstructural protein 4 genes of a porcine rotavirus strain (SKA-1) from Japan. The strain was closely related to a novel group of human rotavirus
Mitsutaka Wakuda   +6 more
doaj   +1 more source

Rapid phylogenetic analysis of large samples of recombinant bacterial whole genome sequences using Gubbins

open access: yesNucleic Acids Research, 2014
The emergence of new sequencing technologies has facilitated the use of bacterial whole genome alignments for evolutionary studies and outbreak analyses.
N. Croucher   +7 more
semanticscholar   +1 more source

Algebraic curves, integer sequences and a discrete Painleve transcendent [PDF]

open access: yes
We consider some bilinear recurrences that have applications in number theory. The explicit solution of a general three-term bilinear recurrence relation of fourth order is given in terms of the Weierstrass sigma function for an associated elliptic curve.
Hone, Andrew N.W.
core  

Domain organization of long autotransporter signal sequences [PDF]

open access: yes, 2010
Bacterial autotransporters represent a diverse family of proteins that autonomously translocate across the inner membrane of Gram-negative bacteria via the Sec complex and across the outer bacterial membrane.
Hiß, Jan Alexander   +1 more
core  

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Eocene Stratigraphic Sequences in the Prebetic of Alicante (SE Spain) and Their Correlation with Global Sea-Level and Climatic Curves

open access: yesJournal of Marine Science and Engineering
The Onil and Ibi sections (Prebetic Zone, Betic Cordillera: Alicante, SE Spain) record a late Ypresian (Cuisian) to early Lutetian (~51 to ~43 Myr) carbonate platform succession, dated using larger benthic foraminifera (LBF) and planktonic foraminifera ...
Crina Miclăuș   +4 more
doaj   +1 more source

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