Zobrazeno 1 - 10
of 16 816
pro vyhledávání: '"A Mackintosh"'
The mechanical properties of biological materials are spatially heterogeneous. Typical tissues are made up of a spanning fibrous extracellular matrix in which various inclusions, such as living cells, are embedded. While the influence of inclusions o
Externí odkaz:
http://arxiv.org/abs/2407.19563
Publikováno v:
Phys. Rev. E 110, 014502 (2024)
Stretching an elastic material along one axis typically induces contraction along the transverse axes, a phenomenon known as the Poisson effect. From these strains, one can compute the specific volume, which generally either increases or, in the inco
Externí odkaz:
http://arxiv.org/abs/2405.00590
Autor:
Cunha, Lucas H. P., Spatafora-Salazar, Aldo, Lobmeyer, Dana M., Joshi, Kedar, MacKintosh, Fred C., Biswal, Sibani Lisa
Superparamagnetic colloids present interesting assembly dynamics and propulsion in time-varying magnetic fields due to their magnetic relaxation. However, little is known about the mechanisms governing this magnetic relaxation, which is commonly attr
Externí odkaz:
http://arxiv.org/abs/2402.06802
Publikováno v:
Phys. Rev. Applied 21, 064032 (2024)
Lightsails using Earth-based lasers for propulsion require passive stabilization to stay within the beam. This can be achieved through the sail's scattering properties, creating optical restoring forces and torques. Undamped restoring forces produce
Externí odkaz:
http://arxiv.org/abs/2401.16924
Strain-controlled criticality governs the elasticity of jamming and fiber networks. While the upper critical dimension of jamming is believed to be $d_u$=2, non mean-field exponents are observed in numerical studies of 2D and 3D fiber networks. The o
Externí odkaz:
http://arxiv.org/abs/2310.12383
Autor:
James D. van Oppen, Simon P. Conroy, Jagruti Lalseta, Nicola Mackintosh, Peter Riley, Vivien Richardson, Jose M. Valderas, Timothy J. Coats
Publikováno v:
Journal of Patient-Reported Outcomes, Vol 8, Iss 1, Pp 1-11 (2024)
Abstract Background Current acute healthcare service metrics are not meaningful for older people living with frailty. Healthcare knowledge, situational security, and physical and psychosocial function are important outcomes typically not collected. T
Externí odkaz:
https://doaj.org/article/d72d8afa63024e8381bbd07cf4bc327b
Networks of stiff fibers govern the elasticity of biological structures such as the extracellular matrix of collagen. These networks are known to stiffen nonlinearly under shear or extensional strain. Recently, it has been shown that such stiffening
Externí odkaz:
http://arxiv.org/abs/2306.11972
Autor:
Gannavarapu, Anupama, Arzash, Sadjad, Muntz, Iain, Shivers, Jordan L., Klianeva, Anna-Maria, Koenderink, Gijsje H., MacKintosh, Fred C.
Fibrous networks such as collagen are common in biological systems. Recent theoretical and experimental efforts have shed light on the mechanics of single component networks. Most real biopolymer networks, however, are composites made of elements wit
Externí odkaz:
http://arxiv.org/abs/2306.03952
At zero temperature, spring networks with connectivity below Maxwell's isostatic threshold undergo a mechanical phase transition from a floppy state at small strains to a rigid state for applied shear strain above a critical strain threshold. Disorde
Externí odkaz:
http://arxiv.org/abs/2304.12459
Autor:
Mitra, Robin, McGough, Sarah F., Chakraborti, Tapabrata, Holmes, Chris, Copping, Ryan, Hagenbuch, Niels, Biedermann, Stefanie, Noonan, Jack, Lehmann, Brieuc, Shenvi, Aditi, Doan, Xuan Vinh, Leslie, David, Bianconi, Ginestra, Sanchez-Garcia, Ruben, Davies, Alisha, Mackintosh, Maxine, Andrinopoulou, Eleni-Rosalina, Basiri, Anahid, Harbron, Chris, MacArthur, Ben D.
Missing data are an unavoidable complication in many machine learning tasks. When data are `missing at random' there exist a range of tools and techniques to deal with the issue. However, as machine learning studies become more ambitious, and seek to
Externí odkaz:
http://arxiv.org/abs/2304.01429