Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Jonas Stålhand"'
Publikováno v:
Frontiers in Physiology, Vol 14 (2023)
Background: Wall stress of the abdominal aorta (AA) appears to be an important factor in the assessment of risk for rupture based on the relationship between blood pressure and aortic diameter. We therefore investigated peak wall stress as well as is
Externí odkaz:
https://doaj.org/article/b2d3ce37842d4cb68b045e8ae0c4572d
Publikováno v:
Artery Research. 28:113-127
Background Wall stiffness of the abdominal aorta is an important factor in the cardiovascular risk assessment. We investigated abdominal aortic wall stiffness divided in direct and cross-coupled stiffness components with respect to sex and age. Metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::833b7689827013d8abcb1113730fc435
https://doi.org/10.1007/s44200-022-00022-0
https://doi.org/10.1007/s44200-022-00022-0
Autor:
Jonas Stålhand, Jan-Lucas Gade
Publikováno v:
Studies in Mechanobiology, Tissue Engineering and Biomaterials ISBN: 9783030923389
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e30925d18ca53ccc4e83fec34d05106e
https://doi.org/10.1007/978-3-030-92339-6_16
https://doi.org/10.1007/978-3-030-92339-6_16
In this study, we consider identification of parameters in a non-linear continuum-mechanical model of arteries by fitting the models response to clinical data. The fitting of the model is formulated as a constrained non-linear, non-convex least-squar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::449e007d0071433549e36a5aae6d4fd0
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176161
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176161
Publikováno v:
Biomechanics and Modeling in Mechanobiology
In this paper an existing in vivo parameter identification method for arteries is extended to account for smooth muscle activity. Within this method a continuum-mechanical model, whose parameters relate to the mechanical properties of the artery, is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f6c618b8dd9fa97772336418e9186d0
https://doi.org/10.1007/s10237-021-01462-4
https://doi.org/10.1007/s10237-021-01462-4
Publikováno v:
Computer methods in biomechanics and biomedical engineering. 22(4)
A method for identifying mechanical properties of arterial tissue in vivo is proposed in this paper and it is numerically validated for the human abdominal aorta. Supplied with pressure-radius data, the method determines six parameters representing r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe3f13e9ab64832e783a90a1ce72dc4a
https://pubmed.ncbi.nlm.nih.gov/30806081
https://pubmed.ncbi.nlm.nih.gov/30806081
Publikováno v:
Journal of the Mechanics and Physics of Solids. 94:490-503
Cell function is based on many dynamically complex networks of interacting biochemical reactions. Enzymes may increase the rate of only those reactions that are thermodynamically consistent. In this paper we specifically treat the contraction of smoo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8f3b2a493a80198a4b0b7ee3d0f79a2
https://doi.org/10.1016/j.jmps.2016.05.018
https://doi.org/10.1016/j.jmps.2016.05.018
The growth and remodeling of arteries, as controlled by the local stress state and the sensory input from the endothelial cells of the artery wall, is given a novel theoretical framework incorporating the active behavior of vascular smooth muscle. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b80e63eadfb39ffa9814da42f8109ee
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-137371
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-137371
Autor:
Babak Sharifimajd, Jonas Stålhand
Publikováno v:
Journal of Theoretical Biology. 355:1-9
The main focus in most of the continuum based muscle models is the mechanics of muscle contraction while other physiological processes governing muscle contraction, e.g., cell membrane excitation and activation, are ignored. These latter processes ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30c360a2f02a3d4db836d2b4dce9588a
https://doi.org/10.1016/j.jtbi.2014.03.016
https://doi.org/10.1016/j.jtbi.2014.03.016
Autor:
Gerhard Holzapfel, Jonas Stålhand
Airway and bladder smooth muscles are known to undergo length adaptation under sustained contraction. This adaptation process entails a remodelling of the intracellular actin and myosin filaments which shifts the peak of the active force-length curve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::995ba41730e9fe5be2b8639e504b875c
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-128721
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-128721