For their inherent stability and simplicity, wheeled robots are very common in robotics applications – but a major drawback of wheeled robots is their inability to navigate over large obstacles or steps without assistance. Active systems that have been designed for use on wheeled robots to lift the robot over a step – such as USU‟s T3 and Virginia Tech‟s IMPASS – are effective, but are limited ...

background and objective: diabetes mellitus is common endocrine disease cause learning and memory impairment. this study was done to evaluate the effect of quercetin on learning and memory in stz-induced diabetic rats was investigated. methods: in this experimental study, 40 male wistar rats were randomly allocated into five groups: control, quercetin - treated control, diabetic and quercetin -...

Previous research indicates that an increased amount of step width variability in humans is associated with an unstable locomotive pattern. For example, the elderly have an increased amount of step width variability compared to their younger counterparts (Ownings & Grabiner, 2004). This notion is further supported by simulations from passive dynamic walking models. Twodimensional passive dynami...

objective : in this study, the effects of estradiol valerate and raloxifenea selective estrogen receptor modulator; (serm) on morphine induced sensitization were examined in mice memory, according to the step-down passive avoidance task. method: the mice received morphine or estradiol and raloxifene for three days alone or in combination with morphine. after a drug free period of 5 days, the su...

We examined the effect of the acetylcholinesterase (AChE) inhibitor, donepezil hydrocloride (DONP), on group II metabotropic glutamate (mGlu) receptor agonist- or antagonist-induced amnesia in the step-through passive avoidance task in male mice. DCG-IV, a group II mGlu receptor agonist, at dose of 50 ng and LY341495, a group II mGlu receptor antagonist, at dose of 300 ng, significantly attenua...

the focus of studies in the field of passive walking has often been on straight walking, while less attention has been paid to the field of turning motions. in this paper, the passive motions of a finite width rimless wheel as the simplest 3d model of passive biped walkers was investigated with a focus on turning motions. for this purpose, the hybrid model of the system consisting of continuous...

Pain coping strategies can be active or passive. Previous studies have examined these strategies separately, however individuals use combinations of both types of coping strategies. We examined the associations between sociodemographic, pain and health-related factors and combinations of active and passive strategies in a general population random sample of 1,131 adults. Individuals reporting n...

This paper consists of three parts. First, with a slightlydifferent, yet, more physically-plausible, discrete supply-rate (i.e. power), we propose a non-iterative (i.e. fast) and variablestep numerical integration algorithm for (scalar) discrete-passive mechanical systems, consisting of constant mass and damper, and a certain class of nonlinear spring. In the second part, we propose a fast pass...

OBJECTIVE The purpose of this study was to examine the immediate effects of spinal manipulative therapy (SMT) on trunk proprioception in subjects with asymptomatic chronic low back pain (CLBP) and determine if those effects lasted 1 week. METHODS This unbalanced randomized controlled crossover design examined 33 subjects with CLBP. Proprioception was tested via joint position sense, threshold...