Results 11 to 20 of about 63,668 (189)

A two-fold cover of strongly regular graphs with spreads and association schemes of class five [PDF]

open access: yesDesigns, Codes and Cryptography, 2014
We consider imprimitive association schemes of class four which are two-fold covers of strongly regular graphs with spreads. It will be shown that a two-fold cover of a strongly regular graph with a spread provides a five class fission scheme of the imprimitive scheme of class four.
Sho Suda
openaire   +5 more sources

Strongly Regular Graphs Constructed from $p$-ary Bent Functions [PDF]

open access: yesJournal of Algebraic Combinatorics, 2010
In this paper, we generalize the construction of strongly regular graphs in [Y. Tan et al., Strongly regular graphs associated with ternary bent functions, J. Combin.Theory Ser.
Chee Yin, De Zhang, Tan Xian, Yeow Meng
core   +3 more sources

Strongly walk-regular graphs [PDF]

open access: yesJournal of Combinatorial Theory - Series A, 2013
We study a generalization of strongly regular graphs. We call a graph strongly walk-regular if there is an $\ell >1$ such that the number of walks of length $\ell$ from a vertex to another vertex depends only on whether the two vertices are the same ...
Abreu   +15 more
core   +4 more sources

Skew-symmetric association schemes with two classes and strongly regular graphs of type L 2n?1(4n?1) [PDF]

open access: yesActa Applicandae Mathematicae, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Symmetric Bush-type generalized Hadamard matrices and association schemes [PDF]

open access: yes, 2015
We define Bush-type generalized Hadamard matrices over abelian groups and construct symmetric Bush-type generalized Hadamard matrices over the additive group of finite field $\mathbb{F}_q$, $q$ a prime power.
Kharaghani, Hadi, Suda, Sho
core   +3 more sources

A distribution invariant for association schemes and strongly regular graphs

open access: yesLinear Algebra and its Applications, 1984
AbstractIn an association scheme X with symmetric classes the projections Ji(x) of the points x ϵ X into the given Eigenspace Ei are considered. In particular the smallest number of points whose projection vectors are strictly on one side of a hyperlane is called the distribution invariant (with respect to Ei) of the association scheme X.
openaire   +2 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Uniform Mixing and Association Schemes [PDF]

open access: yes, 2014
We consider continuous-time quantum walks on distance-regular graphs of small diameter. Using results about the existence of complex Hadamard matrices in association schemes, we determine which of these graphs have quantum walks that admit uniform mixing.
Godsil, Chris   +2 more
core  

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon   +13 more
wiley   +1 more source

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