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Classification of 8-dimensional rank two commutative semifields
[article]
2016
arXiv
pre-print
We classify the rank two commutative semifields which are 8-dimensional over their center F_q. This is done using computational methods utilizing the connection to linear sets in PG(2,q^4). ...
The implications of these results are detailed for other geometric structures such as semifield flocks, ovoids of parabolic quadrics, and eggs. ...
F q -linear set in C PG(2, q n ) contains a dual F q -subline on an internal point w.r.t. ...
arXiv:1606.06151v2
fatcat:pdlefywj25cg5lxnnpc3metlbe
On minimum size blocking sets of the outer tangents to a hyperbolic quadric in PG(3,q)
2019
Finite Fields and Their Applications
Let Q + (3, q) be a hyperbolic quadric in PG(3, q) and T 1 be the set of all lines of PG(3, q) meeting Q + (3, q) in singletons (the so-called outer tangents). ...
If k is the minimum size of a T 1 -blocking set in PG(3, q), then we prove that k ≥ q 2 − 1. ...
Sciences in March-April 2017. ...
doi:10.1016/j.ffa.2018.11.002
fatcat:nszabsrc4rgwhddfe53tm65tua
Low dimensional models of the finite split Cayley hexagon
[article]
2012
arXiv
pre-print
We provide a model of the split Cayley hexagon arising from the Hermitian surface H(3,q^2), thereby yielding a geometric construction of the Dickson group G_2(q) starting with the unitary group SU_3(q) ...
the support of a GNSAGA-grant. ...
The first author acknowledges the support of a Marie Curie Incoming International Fellowship within the 6th European Community Framework Programme (MIIF1-CT-2006-040360), and the second author acknowledges ...
arXiv:1201.4523v1
fatcat:l36fa2gtnve6xksndornhuxff4
Finite geometries
2008
Designs, Codes and Cryptography
Schmidt, Asymptotic nonexistence of dihedral difference sets L. Storme, On multiple blocking sets in Galois planes P. Sziklai, Small multiple blocking sets in PG(4, q 2 ) with respect to planes K. ...
Edel, Extensions of generalized product caps A. Gács, Some new results about directions D.G. Glynn, The invariant graphs, tournaments and codes of projective planes of even order P. ...
In the second part of the talk we show that a partial spread of size k in P G(2, q) is equivalent to a set of k − 1 points in AG(2, q 2 ) not determining a Baer subline. ...
doi:10.1007/s10623-007-9162-6
fatcat:yd5cqfmlrfa7zlzeifhhx7qfg4
Orthotopic patient-derived xenografts of paediatric solid tumours
2017
Nature
E.S. was supported by the St. Baldrick's Foundation and the National Pediatric Cancer Foundation (NPCF). ...
Acknowledgments We thank Angela McArthur for editing the manuscript. ...
96%) in methanol as an internal standard. ...
doi:10.1038/nature23647
pmid:28854174
pmcid:PMC5659286
fatcat:i3ni72ksf5bidodjqmhjt6ojqy
Tight sets and m-ovoids of generalised quadrangles
2009
Combinatorica
A characterization of the sets of internal and external points of a conic Frank De Clerck, joint work with Nikias De Feyter We provide a characterization of the sets of internal and external points of ...
An ovoid of Q + (2n + 1, q) is a set O of points of Q + (2n + 1, q) such that every generator meets O in exactly one point; it contains q n + 1 points. ...
doi:10.1007/s00493-009-2179-x
fatcat:3lv4kl6qafbfdemivsj73n6miq
Hyperovals on H(3,q2)
2011
Journal of combinatorial theory. Series A
A construction of an irreducible 2-ovoid of H(3, 25) and some results on packings of the Hermitian curve are given. ...
Infinite families of hyperovals of the generalized quadrangle H(3, q 2 ) are constructed. Some sporadic examples are also presented. ...
Replace these points with those in the intersection of H(3, q 2 ) with the polar line of . The resulting set contains no conjugate pairs of points and has the same size as O. Hence it is an ovoid. ...
doi:10.1016/j.jcta.2010.11.016
fatcat:r6kcr7k5yzc6bmeccgjaup4tn4
Multiple recent sex chromosome fusions in Drosophila virilis associated with elevated satellite DNA abundance
[article]
2021
bioRxiv
pre-print
We find that the centromere-to-centromere fusions resulted in up to a 21% nondisjunction rate between the X and Y chromosomes in males, adding a fitness cost. ...
This was further supported by a significant decrease in DNA breakage in an otherwise genetically identical substrain that lost the chromosome fusion and several megabases of satellite DNA. ...
We next set up a two-464 generation crossing scheme ( Figure 1A) . ...
doi:10.1101/2021.06.14.448339
fatcat:ctyy4ciqune6liejspthed5ee4
Macrophages employ quorum licensing to regulate collective activation
2020
Nature Communications
The results show that bimodal phenotypic partitioning of macrophages is primed during the resting state, dependent on cumulative history of cell density, predicted by extrinsic noise in transcription factor ...
expression, and independent of canonical LPS-induced intercellular feedback in the tumor necrosis factor (TNF) response. ...
secretion assay; Sean Allen for reagents; and Sarah Stainbrook, Gokay Yamankurt, and members of the Leonard lab and Bagheri lab for discussions. ...
doi:10.1038/s41467-020-14547-y
pmid:32054845
pmcid:PMC7018708
fatcat:4wtvdr6eavgxvkvxcgutw576su
Monads for Instantons and Bows
[article]
2019
arXiv
pre-print
Instantons on the Taub-NUT space are related to 'bow solutions' via a generalization of the ADHM-Nahm transform. ...
For both the instanton and the bow solution we produce two monads encoding each of them respectively. ...
The authors also thank the Banff International Research Station for hospitality during the workshop The Analysis of Gauge-Theoretic Moduli Spaces where this work was completed. ...
arXiv:1709.00145v2
fatcat:szzkhnnv4rhsvmwtdifdfzm7vm
Resistance to receptor-blocking therapies primes tumors as targets for HER3-homing nanobiologics
2018
Journal of Controlled Release
A growing number of such tumors are characterized by prominent expression of the human epidermal growth factor receptor 3 (HER3) on the cell surface. ...
These have improved therapeutic efficacy and safety compared to traditional treatment modalities but resistance arises in the majority of clinical cases. ...
The minced tissue and media were incubated for 16 h in a table-top shaker at 37°C and 210 RPM. Media/cell mixture was spun down in a 50 mL conical tube at 80 ×g for 30 s in a clinical centrifuge. ...
doi:10.1016/j.jconrel.2017.12.024
pmid:29288681
pmcid:PMC5807213
fatcat:ldxe7enddbbtdoeu7hshtirlzu
Anti-CD40 Antibodies Fused to CD40 Ligand Have Superagonist Properties
2021
Journal of Immunology
The increased anti-CD40-CD40L Ab potency was independent of higher order aggregation. ...
The tetravalent configuration of anti-CD40-CD40L Abs promotes CD40 cell surface clustering and internalization and is the likely mechanism of increased receptor activation. ...
Acknowledgments We thank Yong-Jun Liu, the previous Baylor Institute for Immunology Research Director, for initiating the development of anti-CD40 Abs with enhanced agonist potency. ...
doi:10.4049/jimmunol.2000704
pmid:34551965
pmcid:PMC8490940
fatcat:layrezoxurcjrbi46iwswq3k2i
On sets with few intersection numbers in finite projective and affine spaces
2014
unpublished
In this paper we study sets X of points of both affine and projective spaces over the Galois field GF(q) such that every line of the geometry that is neither contained in X nor disjoint from X meets the ...
set X in a constant number of points and we determine all such sets. ...
Acknowledgements The author thanks Tim Penttila and Cheryl Praeger for the helpful discussions on group theory. ...
fatcat:v2vi63cpzjbhjcsqkji36mj6ya
Birth Control and Catholic Doctrine
1960
Science
In order to describe the measured dis- tributions found by Miller and Reite- meier, a mathematical model was set up. ...
Achievements in outer-space activities are, of course, the prime example of this. Perhaps a few comments about our space and mis- sile program in this light are in order. ...
doi:10.1126/science.131.3406.1010-c
fatcat:6n4r7u34ynb6vapu6vjrjvbb6m
Birth Control and Catholic Doctrine
1960
Science
In order to describe the measured dis- tributions found by Miller and Reite- meier, a mathematical model was set up. ...
Achievements in outer-space activities are, of course, the prime example of this. Perhaps a few comments about our space and mis- sile program in this light are in order. ...
doi:10.1126/science.131.3406.1010.c
fatcat:qqn2knqq2rcshmv6576fi3gbga
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