scholarly journals On Paul Cilliers’ Approach to Complexity:Post-structuralism versus Model Exclusivity

2021 ◽  
Vol 19 (4) ◽  
pp. 457-469
Author(s):  
Ragnar Van Der Merwe
Keyword(s):  
Versus Model

Position and torque tracking: Series elastic actuation versus model-based-controlled hydraulic actuation

2011 ◽  
Author(s):  
A. Otten ◽  
W. van Vuuren ◽  
A. Stienen ◽  
E. van Asseldonk ◽  
A. Schouten ◽  
...  
Keyword(s):  
Model Based ◽  
Versus Model ◽  
Series Elastic

A note on design-based versus model-based variance estimation in stereology

2002 ◽  
Vol 34 (03) ◽  
pp. 484-490 ◽  
Author(s):  
Asger Hobolth ◽  
Eva B. Vedel Jensen
Keyword(s):  
Mathematical Model ◽  
Original Problem ◽  
Variance Estimation ◽  
Point Of View ◽  
Systematic Sampling ◽  
Variance Estimator ◽  
Shape Model ◽  
Model Based ◽  
Versus Model ◽  
Special Case

Recently, systematic sampling on the circle and the sphere has been studied by Gual-Arnau and Cruz-Orive (2000) from a design-based point of view. In this note, it is shown that their mathematical model for the covariogram is, in a model-based statistical setting, a special case of the p-order shape model suggested by Hobolth, Pedersen and Jensen (2000) and Hobolth, Kent and Dryden (2002) for planar objects without landmarks. Benefits of this observation include an alternative variance estimator, applicable in the original problem of systematic sampling. In a wider perspective, the paper contributes to the discussion concerning design-based versus model-based stereology.

scholarly journals Alpha-Asarone Protects Endothelial Cells from Injury by Angiotensin II

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hai-Xia Shi ◽  
Jiajun Yang ◽  
Tao Yang ◽  
Yong-Liang Xue ◽  
Jun Liu ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Endothelial Cells ◽  
Angiotensin Ii ◽  
Cell Injury ◽  
Fluorescent Dyes ◽  
Umbilical Vein ◽  
Protective Effects ◽  
Ang Ii ◽  
Versus Model

α-Asarone is the major therapeutical constituent ofAcorus tatarinowiiSchott. In this study, the potential protective effects ofα-asarone against endothelial cell injury induced by angiotensin II were investigatedin vitro. The EA.hy926 cell line derived from human umbilical vein endothelial cells was pretreated withα-asarone (10, 50, 100 µmol/L) for 1 h, followed by coincubation with Ang II (0.1 µmol/L) for 24 h. Intracellular nitric oxide (NO) and reactive oxygen species (ROS) were detected by fluorescent dyes, and phosphorylation of endothelial nitric oxide synthase (eNOS) atSer1177was determined by Western blotting.α-Asarone dose-dependently mitigated the Ang II-induced intracellular NO reduction (P<0.01versus model) and ROS production (P<0.01versus model). Furthermore, eNOS phosphorylation (Ser1177) by acetylcholine was significantly inhibited by Ang II, while pretreatment for 1 h withα-asarone partially prevented this effect (P<0.05versus model). Additionally, cell viability determined by the MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay (105~114.5% versus control,P>0.05) was not affected after 24 h of incubation withα-asarone at 1–100 µmol/L. Therefore,α-asarone protects against Ang II-mediated damage of endothelial cells and may be developed to prevent injury to cardiovascular tissues.

Experimental validation of robot-assisted cardiovascular catheterization: model-based versus model-free control

2018 ◽  
Vol 13 (6) ◽  
pp. 797-804
Author(s):  
Xiaomei Wang ◽  
Kit-Hang Lee ◽  
Denny K. C. Fu ◽  
Ziyang Dong ◽  
Kui Wang ◽  
...  
Keyword(s):  
Experimental Validation ◽  
Robot Assisted ◽  
Model Based ◽  
Model Free ◽  
Versus Model ◽  
Model Free Control
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