Matthew P. Fahrenkopf, MD, Joshua J. Nelson, MD, Mitchell Eichhorn, MD, Julie Conway, MD and Adam Hassan, MD aMichigan State University College of Human Medicine, Grand Rapids; bGrand Rapids Medical Education Partners Plastic and Reconstructive Surgery Residency, Grand Rapids, Mich; cHelen DeVos Children’s Hospital Pediatric Ophthalmology, Grand Rapids, Mich, and dEye Plastic & Facial Cosmetic ...

How humans and other animals control rhythmic behaviors, and locomotion in particular, is one of the grand challenges of neuroscience and biomechanics. And yet remarkably few studies address the fundamental control-systems modeling of locomotor control. This thesis attempts to address several pieces of this grand challenge through the development of experimental, theoretical, and computational ...

In 2012, people aged 65 or above accounted for nearly one-fifth of the population of the European Union [1] and this figure is expected to reach 30 % by 2060 [2]. In other words, we are witnessing a demographic shift: the number of seniors who need support is growing whilst there is a decline in the percentage of the working population contributing to their support. This disproportion and the r...

We demonstrate that a simple solar dynamo model, in the form of a Parker migratory dynamo with random fluctuations of the dynamo governing parameters and algebraic saturation of dynamo action, can at least qualitatively reproduce all the basic features of solar Grand Minima as they are known from direct and indirect data. In particular, the model successfully reproduces such features as an abru...