The aim of this study was to evaluate three types of walkers for elderly people. Four elderly patients participated in the study. The experiments were performed using three walkers: a familiar conventional folding walker, a caster walker and a power-assisted walker. We evaluated walking speed, body acceleration and an electromyogram of the gastrocnemius during use of each walker. The results in...

We prove a quenched invariance principle for class of random walks in environment on $${\mathbb {Z}}^d$$ , where the walker alters its own environment. The consists an outgoing edge from each vertex. updates e at current location to new $$e'$$ (whose law depends e) and then steps other endpoint . show that native these (i.e., is stationary time perspective walker) wired uniform spanning forest ...

We construct a new harmonic family: dielectric flow solutions with maximal supersymmetry in eleven-dimensional supergravity. These solutions are asymptotically AdS4 ×S7, while in the infra-red the M2 branes are dielectrically polarized into M5 branes. These solutions are holographically dual to vacua of the mass deformed theory on M2 branes. They also provide an interesting insight on the super...

As mentioned before, the success of CASE relies on two noteworthy properties: the Sure Screening (SS) property and the Separable After Screening (SAS) property. In this section, we discuss the two properties in detail, and illustrate how these properties enable us to decompose the original regression problem to many small-size regression problems which can be fit separately. We then use these p...

I describe a modification to Shanks’ baby-step giant-step algorithm for computing the order n of an element g of a group G, assuming n is finite. My method has the advantage of being able to compute n quickly, which Shanks’ method fails to do when the order of G is infinite, unknown, or much larger than n. I describe the algorithm in detail. I also present the results of implementations of my a...

OBJECTIVES Compare the efficacy of two walking assistance devices (wheeled walker and standard walker) to unassisted walking for patients with PD and gait freezing. BACKGROUND Although numerous walking devices are used clinically, their relative effects on freezing and walking speed have never been systematically tested. METHODS Nineteen PD patients (14 non-demented) walked under three cond...