OBJECTIVES To investigate whether poorer cognitive ability is a risk factor for development of physical frailty and whether this risk varies according to cognitive domain. DESIGN Prospective longitudinal study with 6-year follow-up. SETTING Edinburgh, Scotland. PARTICIPANTS Members of the Lothian Birth Cohort 1936 (N = 594). MEASUREMENTS Frailty was assessed at ages 70 and 76 using the ...

Several methods of increasing the speed and simplicity of the computation of oo-axis transmission holograms are presented, with applications to the real-time display of holographic images. The bipolar intensity approach allows for the real-valued linear summation of interference fringes, a factor of 2 speed increase, and the elimination of image noise caused by object self-interference. An orde...

During smooth pursuit, the image of the target is stabilized on the fovea, implying that speed judgments made during pursuit must rely on an extraretinal signal providing precise eye speed information. To characterize the introduction of such extraretinal signal into the human visual system, we performed a factorial, functional magnetic resonance imaging experiment, in which we manipulated the ...

Several methods of increasing the speed and simplicity of the computation of o axis transmission holograms are presented with applications to the real time display of holographic images The bipolar intensity approach allows for the real valued linear summation of interference fringes a factor of speed increase and the elimination of image noise caused by object self interference An order of mag...

The present study examined the memory and speed of processing abilities associated with general giftedness (G) and excellence in mathematics (E). The research involved four groups of 16-18 years old participants varying in levels of G and E. 160 participants were tested on a battery of three memory tests and five speed of processing tests. Working-memory was found to be related to both G and E ...

In order to improve the operational performance of self-developed 4HLB-4 half-feed four-row peanut combine harvester, single-factor and multifactor field tests were conducted on key parameters affecting quality harvesting. The response surface methodology was used study effects forward speed, clamping height, picking roller rotational cleaning sieve vibrational frequency loss rate impurity rate...

This paper presents the analysis of Ricean K-factor for wideband high-speed railway channels at 2.35 GHz, based on radio channel measurements under viaduct and U-shape cutting scenarios. We characterize the K-factor from the perspective of narrowband, wideband and delay, according to the measured channel responses. The time-frequency varying narrowband K-factors in two scenarios are analyzed an...

conditional monitoring is prerequisite to prevent severe damage or falling down the trees. problems such as trunk decays, reduces trees resistance against wind and floods. in this study, a mathematical modeling technique is being selected to determine the trees strength against such events. finally, an applicable model for safety factor was created by having numeral (dimensions of crown and tru...

The thermometer code-to-binary code encoder has become the bottleneck of the ultra-high speed flash ADCs. In this paper, the authors presented the fat tree thermometer codeto-binary code encoder that is highly suitable for the ultrahigh speed flash ADCs. The simulation and the implementation results show that the fat tree encoder outperforms the commonly used ROM encoder in terms of speed and p...