Topology reveals the hidden rules of amorphous materials: Softness arises from hierarchical structures

Why do glass and other amorphous materials deform more easily in some regions than in others? A research team from the University of Osaka, the National Institute of Advanced Industrial Science and ...
Nature

Turning a hobby into a job: How duplicated genes find new functions

Natural selection uses duplicated genes as raw material for functional innovation, co-opting their existing features to new functions. Understanding genetic innovation requires two questions to be ...
IEEE

Asymptotic Stability of Piecewise Affine Systems With Filippov Solutions via Discontinuous Piecewise Lyapunov Functions

Abstract: Asymptotic stability of continuous-time piecewise affine systems defined over a polyhedral partition of the state space, with possible discontinuous vector field on the boundaries, is ...
Daily Mail

Scientists find musical link to boosting brain function for life

Learning to play a musical instrument can protect your brain from aging, building up a defense against cognitive decline that lasts a lifetime. Researchers from Canada and China discovered older ...
World Scientific

A Pseudorandom Number Generator Based on a 4D Piecewise Logistic Map with Coupled Parameters

College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China Key Laboratory of Electronic Commerce and Logistics, Chongqing ...
IEEE

Multiple Lyapunov Functions Analysis Approach for Discrete-Time-Switched Piecewise-Affine Systems Under Dwell-Time Constraints

Abstract: In this technical note, the asymptotic stability analysis and state-feedback control design are investigated for a class of discrete-time switched nonlinear systems via the smooth ...