Fifteen older adults (M = 68 years old) and 15 young adults (M = 23 years old) participated in a speed-accuracy task in which aiming movements were performed on a digitizing tablet to assess movement slowing and variability in older adults. Target-size and movement amplitude influences were analyzed separately to determine if they affected the performance of the young and older adults different...

Small-scale and large-scale variations of signal amplitude for wideband data collected at two office buildings have been investigated. The data base includes 12000 impulse response estimates which were obtained by inverse Fourier transforming of the channel's frequency response profiles. Extensive curve fitting for the distribution of individual multipath components' amplitudes using elaborate ...

Excitation of upper hybrid waves associated with the ionospheric heating experiments is assumed to be essential in explaining some of the features of stimulated electromagnetic emissions (SEE). A direct conversion process is proposed as an excitation mechanism of the upper hybrid waves where the energy of an obliquely propagating electromagnetic pump wave is converted into the electrostatic upp...

background: the rome ii and iii diagnostic criteria for dyssynergic defecation recommended the exclusion of irritable bowel syndrome (ibs). this study determined the effect of biofeedback therapy on dyssynergic constipation in patients with or without  irritable bowel syndrome. materials and methods: this study was a non-randomized, single blinded, semi experimental study. dyssynergic defecatio...

introduction: to study the effects of polarized polychromatic noncoherent light (bioptron) therapy on patients with carpal tunnel syndrome (cts). methods: this study was designed as a randomized clinical trial. forty four patients with mild or moderate cts (confirmed by clinical and electrodiagnostic studies) were assigned randomly into two groups (intervention and control goups). at the beginn...

Observations of accreting systems often show significant variability (10–20 percent of accretion luminosity) on timescales much longer than expected for the disc regions releasing most of the luminosity. We propose an explicit physical model for disc variability , consistent with Lyubarskii's (1997) general scheme for solving this problem. We suggest that local dynamo processes can affect the e...

We analyze a sample of optical light curves for 100 quasars, 70 of which have black hole mass estimates. Our sample is the largest and broadest used yet for modeling quasar variability. The sources in our sample have z < 2.8, 10 . λLλ(5100Å) . 10 , and 10 . MBH/M⊙ . 10 . We model the light curves as a continuous time stochastic process, providing a natural means of estimating the characteristic...

Forward-backward charge asymmetry in rare dilepton B-decays is formulated with the assumption of an on-shell b-quark. We find the asymmetry is expressed in terms of two spatially transverse helicity amplitudes, which are determined by combining the data of D → K(892) l+ν with heavy flavour symmetry. We estimate the charge asymmetry of B → K(892) l+l− for large energy leptons against various top...

Prediction interval is awidely used tool in industrial applications to predict the distribution of future observations. The exact minimum coverage probability and the average coverage probability of the conventional prediction interval for a discrete random variable have not been accurately derived in the literature. In this paper, procedures to compute the exact minimumconfidence levels and th...

Abstract. A lower bound on the misclassification probability for a finite number of classes is obtained in terms of the total variation norms of the differences between the sub-distributions over the classes. This bound, which is shown to be exact in a certain rather strong sense, is based on an exact upper bound on the difference between the maximum and the mean of a finite set of real numbers...