Zobrazeno 1 - 10
of 3 796
pro vyhledávání: '"P van Rensburg"'
Autor:
Adams, Henry, Albornoz, Armando, Bruda, Glenn, Du, Jianda, van Rensburg, Lodewyk Jansen, Leon, Alejandro, Narayanan, Saketh, Panish, Connor, Rugenstein, Chris, Wall, Martin
The Hausdorff distance measures how far apart two sets are in a common metric space. By contrast, the Gromov-Hausdorff distance provides a notion of distance between two abstract metric spaces. How do these distances behave for quotients of spaces un
Externí odkaz:
http://arxiv.org/abs/2410.14938
We investigate a lattice model of comb polymers and derive bounds on the exponential growth rate of the number of embeddings of the comb. A comb is composed of a backbone that is a self-avoiding walk and a set of $t$ teeth, also modelled as mutually
Externí odkaz:
http://arxiv.org/abs/2407.21112
Autor:
Bradly, CJ, van Rensburg, EJ Janse
Polymers in confined spaces are compressed and have reduced conformational entropy, and will partially or fully escape from confinement if conditions are suitable. This is in particular the case for a polymer grafted in a pore. The escape of the poly
Externí odkaz:
http://arxiv.org/abs/2405.20103
We investigate a lattice model of comb copolymers that can adsorb at a surface and that are subject to a force causing desorption. The teeth and the backbone of the comb are chemically distinct and can interact differently with the surface. That is,
Externí odkaz:
http://arxiv.org/abs/2311.09320
We analyse a non-local parabolic integro-differential equation modelling the evolutionary dynamics of a phenotypically-structured population in a changing environment. Such models arise in a variety of contexts from climate change to chemotherapy to
Externí odkaz:
http://arxiv.org/abs/2311.00829
Autor:
Lervasen Pillay, Dina C. Janse van Rensburg, Gopika Ramkilawon, Thor Einar Andersen, Gino Kerkhoffs, Vincent Gouttebarge
Publikováno v:
BMC Sports Science, Medicine and Rehabilitation, Vol 16, Iss 1, Pp 1-8 (2024)
Abstract Aims We examined the prevalence and incidence of mental health symptoms (MHS) in active professional male footballers over a 12-month period and investigated if MHS was associated with severe injuries or surgeries. Participants and methods F
Externí odkaz:
https://doaj.org/article/84061887a3fc413f8e094a6fe56620ee
We extend Theorem 1 of R. Reams, A Galois approach to m-th roots of matrices with rational entries, LAA 258 (1997), 187-194. Let $p(\lambda)$ be any polynomial over $\mathbb{Q}$ and let $A\in M_n(\mathbb{Q})$ have irreducible characteristic polynomia
Externí odkaz:
http://arxiv.org/abs/2307.06303
Publikováno v:
Neural Regeneration Research, Vol 20, Iss 2, Pp 598-608 (2025)
Photobiomodulation, originally used red and near-infrared lasers, can alter cellular metabolism. It has been demonstrated that the visible spectrum at 451–540 nm does not necessarily increase cell proliferation, near-infrared light promotes adipose
Externí odkaz:
https://doaj.org/article/801af05dd25c44afaa633349e7e32793
Autor:
van Rensburg, EJ Janse
The distribution of monomers in a coating of grafted and adsorbing polymers is modelled using a grafted staircase polygon in the square lattice. The adsorbing staircase polygon consists of a bottom and a top lattice path (branches) and the asymptotic
Externí odkaz:
http://arxiv.org/abs/2304.13562
Autor:
Pierre de Villiers, Noor Parker, Roland van Rensburg, Pierre Goussard, Carine Marks, Veshni Pillay-Fuentes Lorente
Publikováno v:
Toxicology Reports, Vol 12, Iss , Pp 18-22 (2024)
Methamidophos is a highly hazardous organophosphate and is known to cause an acute cholinergic toxidrome. Methamidophos use is not allowed in South Africa and therefore local data pertaining to methamidophos poisoning is very limited, with no paediat
Externí odkaz:
https://doaj.org/article/b4fd5f8ebfcf4930988cbca2e54ed3d7