Results 131 to 140 of about 3,617 (306)

New Zealand volume. [PDF]

open access: yesEur J Math, 2022
Bogomolov F   +3 more
europepmc   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

RESTRICTED 132-INVOLUTIONS

open access: yes, 2002
We study generating functions for the number of involutions of length n avoiding (or containing exactly once) 132 and avoiding (or containing exactly once) an arbitrary permutation τ of length k.
Mansour, T.   +3 more
core  

There are exotic involutions on M × M

open access: yes, 2019
We constructed infinitely many involutions on M × M with fixed point set homeomorphic to M. All these involutions are a&/2-isovariantly homotopy equivalent to interchange and are inequivalent to one another in the TOP category.
Hu, Hailiang
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Classification of Symplectic Birational Involutions of Manifolds of $OG10$ type

open access: yes, 2023
In this paper we give a classification of symplectic birational involutions of manifolds of $OG10$-type. We approach this classification with three techniques - via involutions of the Leech lattice, via involutions of cubic fourfolds and finally lattice ...
Muller, Stevell, Marquand, Lisa
core  

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Characterization of Involutions of SP(2n,k)

open access: yes, 2005
In this thesis, we discuss the relationship between involutions of the two matrix groups SL(2n,k) and SP(2n,k). Involutions determine symmetric spaces hence a complete classification of involutions of both SL(n,k) and SP(2n,k) will in turn classify the ...
Jackson, Farrah Monique
core  

Products of involutions

open access: yes, 1976
Every square matrix over a field, with determinant ±1, is the product of not more than four ...
Gustafson, W.H.   +5 more
core   +1 more source

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