scholarly journals Optimization of thermomechanical processes for the functional gradation of polymers by means of advanced empirical modeling techniques

2014 ◽  
Author(s):  
D. Biermann ◽  
S. Hess ◽  
A. Ries ◽  
T. Wagner ◽  
A. Wibbeke
Keyword(s):  
Empirical Modeling ◽  
Functional Gradation ◽  
Modeling Techniques ◽  
Thermomechanical Processes

scholarly journals Identifying Complex Dynamics in Social Systems

2016 ◽  
Vol 47 (2) ◽  
pp. 103-135 ◽  
Author(s):  
Viktoria Spaiser ◽  
Peter Hedström ◽  
Shyam Ranganathan ◽  
Kim Jansson ◽  
Monica K. Nordvik ◽  
...  
Keyword(s):  
School Quality ◽  
Complex Dynamics ◽  
Social Systems ◽  
Empirical Modeling ◽  
Complex Dynamic ◽  
Social Phenomena ◽  
Critical Thresholds ◽  
Multiple Phase ◽  
Modeling Techniques ◽  
Using Data

It is widely recognized that segregation processes are often the result of complex nonlinear dynamics. Empirical analyses of complex dynamics are however rare, because there is a lack of appropriate empirical modeling techniques that are capable of capturing complex patterns and nonlinearities. At the same time, we know that many social phenomena display nonlinearities. In this article, we introduce a new modeling tool in order to partly fill this void in the literature. Using data of all secondary schools in Stockholm county during the years 1990 to 2002, we demonstrate how the methodology can be applied to identify complex dynamic patterns like tipping points and multiple phase transitions with respect to segregation. We establish critical thresholds in schools’ ethnic compositions, in general, and in relation to various factors such as school quality and parents’ income, at which the schools are likely to tip and become increasingly segregated.

Sign in / Sign up

Export Citation Format

Share Document