Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Nilima Nigam"'
Publikováno v:
Frontiers in Physiology, Vol 12 (2022)
Cerebral palsy results from an upper motor neuron lesion and significantly affects skeletal muscle stiffness. The increased stiffness that occurs is partly a result of changes in the microstructural components of muscle. In particular, alterations in
Externí odkaz:
https://doaj.org/article/b02bd02b29694d56959626fec6a88539
Publikováno v:
Frontiers in Physiology, Vol 12 (2021)
During muscle contraction, chemical energy is converted to mechanical energy when ATP is hydrolysed during cross-bridge cycling. This mechanical energy is then distributed and stored in the tissue as the muscle deforms or is used to perform external
Externí odkaz:
https://doaj.org/article/1c0ab1f19b204e0fa7873921385d4f4d
Publikováno v:
PLoS ONE, Vol 16, Iss 4, p e0249601 (2021)
Skeletal muscle tissue has a highly complex and heterogeneous structure comprising several physical length scales. In the simplest model of muscle tissue, it can be represented as a one dimensional nonlinear spring in the direction of muscle fibres.
Externí odkaz:
https://doaj.org/article/561df2cd9bee4b7980c2155dc8924d62
Publikováno v:
Frontiers in Physiology, Vol 11 (2020)
In this study we examined how the strain energies within a muscle are related to changes in longitudinal force when the muscle is exposed to an external transverse load. We implemented a three-dimensional (3D) finite element model of contracting musc
Externí odkaz:
https://doaj.org/article/39c9164044df4fd4bc7d998ea3dbf038
Autor:
James M. Wakeling, Stephanie A. Ross, David S. Ryan, Bart Bolsterlee, Ryan Konno, Sebastián Domínguez, Nilima Nigam
Publikováno v:
Frontiers in Physiology, Vol 11 (2020)
During contraction the energy of muscle tissue increases due to energy from the hydrolysis of ATP. This energy is distributed across the tissue as strain-energy potentials in the contractile elements, strain-energy potential from the 3D deformation o
Externí odkaz:
https://doaj.org/article/c9b891fbac064252b55584342ee620a2
Publikováno v:
PLoS Computational Biology, Vol 14, Iss 4, p e1006123 (2018)
Hill-type muscle models are widely used within the field of biomechanics to predict and understand muscle behaviour, and are often essential where muscle forces cannot be directly measured. However, these models have limited accuracy, particularly du
Externí odkaz:
https://doaj.org/article/26969061afa94be6979496c83b78f919
Publikováno v:
PLoS ONE, Vol 3, Iss 5, p e2104 (2008)
BACKGROUND: Osteoclasts, cells responsible for bone resorption, contribute to the development of degenerative, metabolic and neoplastic bone diseases, which are often characterized by persistent changes in bone microenvironment. We aimed to investiga
Externí odkaz:
https://doaj.org/article/bbf4714aa1204d66806da33c163b5abe
Publikováno v:
Computational Methods in Applied Mathematics. 22:821-837
In this paper, we show that the so-called Korn inequality holds for vector fields with a zero normal or tangential trace on a subset (of positive measure) of the boundary of Lipschitz domains. We further show that the validity of this inequality depe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1321375f7970410a00038fc7efc93739
https://doi.org/10.1515/cmam-2021-0144
https://doi.org/10.1515/cmam-2021-0144
Publikováno v:
Foundations of Computational Mathematics. 20:1475-1504
A modified version of Schiffer’s conjecture on a regular pentagon states that Neumann eigenfunctions of the Laplacian do not change sign on the boundary. In a companion paper by Bartlomiej Siudeja it was shown that eigenfunctions which are strictly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fd88ace36c1374f76f5d71af9300fe5
https://doi.org/10.1007/s10208-020-09447-y
https://doi.org/10.1007/s10208-020-09447-y
Autor:
Nilima Nigam, Sara Pollock
This paper introduces a simple variant of the power method. It is shown analytically and numerically to accelerate convergence to the dominant eigenvalue/eigenvector pair; and, it is particularly effective for problems featuring a small spectral gap.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a6cebed9d4ede257d215c0ffda99e5d
