The role of negative stiffness in semi-active control of magneto-rheological dampers

2011 ◽  
Vol 18 (3) ◽  
pp. 289-304 ◽  
Author(s):  
Jan Høgsberg
Keyword(s):  
Active Control ◽  
Negative Stiffness ◽  
Magneto Rheological

scholarly journals Evaluating a Values-Based Intervention for Adolescence with High Nonclinical Paranoia: A Schools-Based Randomised Control Trial

2021 ◽  
Author(s):  
A. Parker ◽  
J. Kingston
Keyword(s):  
Active Control ◽  
Primary Outcome ◽  
Randomised Trial ◽  
Self Esteem ◽  
Randomised Control Trial ◽  
Intention To Treat ◽  
Low Intensity ◽  
Time Interaction ◽  
Potential Mediator

Abstract Background Paranoia in adolescents is common, but research on attenuating it is scarce. Focusing on values and enhancing value-based acts is a low intensity method for attenuating paranoia in adults. This randomised trial compared a brief (30-min, self-directed) values-plus-goals intervention to an active control for adolescents with high nonclinical paranoia (Paranoia Scale ≥ 53), delivered in schools. The study also investigated the role of self-esteem. Methods Ninety adolescents were randomly assigned to condition. Paranoia (primary outcome) and self-esteem (potential mediator) were assessed at baseline (T1), and two- (T2) and six-weeks (T3) after baseline. Results Results were analysed using intention to treat (ITT) and per protocol (PP) analysis. Using ITT analysis, the Condition*Time interaction was significant (F(2, 168) = 3.98, p = .02), paranoia was significantly lower at T3 following values-plus-goals as compared to control (d = 0.64). Differences were not significant using per protocol analysis (F(2, 106) = 1.61, p = .21). The between group effect size at T3 was (d = 0.61). The Condition*Time interaction for self-esteem was not significant (F(2, 112) = 2.86, p = .06). Conclusions Tentatively, findings suggest that a brief values-plus-goals intervention can reduce paranoia in adolescents relative to an active control.

Comparative research on semi-active control strategies for magneto-rheological suspension

2009 ◽  
Vol 59 (3) ◽  
pp. 433-453 ◽  
Author(s):  
Xiao-min Dong ◽  
Miao Yu ◽  
Chang-rong Liao ◽  
Wei-min Chen
Keyword(s):  
Active Control ◽  
Comparative Research ◽  
Control Strategies ◽  
Magneto Rheological
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