To evaluate the possible contribution of high-frequency hearing to frequency discrimination at lower frequencies, pure-tone frequency discrimination tasks at 1200 Hz, with and without high-frequency masking noise, were performed by two highly practiced normal-hearing listeners. Signal levels ranged from 10 to 80 dB SPL. Spectra of the three high-frequency masking noises ranged from 1.8 to 2.1 k...

Frequency discrimination was measured for a wide range of center frequencies (0.25-8 kHz) using three different tasks. In the first (difference limens for frequency, DLFs) subjects were required to indicate which of two successive tone pulses was higher in frequency. In the second (difference limens for change, DLCs), two successive pairs of tone pulses were presented; one pair had the same fre...

This paper presents a novel secret voting scheme which fully conforms to the requirements of large scale elections. The participants in the scheme are voters, candidates, an administrator, and a counter. The scheme uses threshold encryption to preserve the privacy and accuracy of the votes against dishonesty of voters, candidates, the administrator , and the counter. It also ensures veriiabilit...

This report covers work of the Optics Division at Lincoln Laboratory for the period 1 January through 30 June 1974. The topics covered are laser technology and propagation and optical measuremerts and inst r urn ent ati on. Additional information on the optics program may be found in the semiannual technical summary reports to the Advanced Research Projects Agency.

We consider the problem of updating beliefs for binary random variables, when probability assessments are elicited for them based on information of varying quality. We propose the threshold model, a Bayesian updating procedure where only measures of location and correlation have to be speciied before any updating is possible. The main aspect of this model is the use of Jeerey's conditionalizati...

Two mature elite Sambo wrestlers were studied during a 22-day pre-European Championship period, during which they were to lose weight and maintain their top physical performance characteristics. During this time the athletes underwent intensive training coupled with a hypocaloric diet. Both lost approximately 8% of their initial body weight, while maintaining their pre-weight loss maximum oxyge...

PURPOSE CrossFit(®) is a new but extremely popular method of exercise training and competition that involves constantly varied functional movements performed at high intensity. Despite the popularity of this training method, the physiological determinants of CrossFit performance have not yet been reported. The purpose of this study was to determine whether physiological and/or muscle strength m...

objective: alpha-thalassemia is one of the most prevalent hemoglobin disorders in the world and it is a common hereditary condition caused by deletion of one or more α-globin genes. common α-thalassemia deletions like 3.7 kb, 4.2 kb, 20.5 kb and med can be detected by multiplex pcr. there are, however, some unknown deletions that can not be detected by the mentioned method or even by direct dna...

conclusions the results showed that endurance training reduced pain by increasing apelin in morphine-dependent rats. therefore, it is suggested that this type of training be considered for the morphine-dependent patients for pain relief. objectives therefore, the aim of this study was to evaluate apelin and pain threshold changes in healthy and morphine-dependent rats in response to two exercis...

background: acupuncture is an indispensable part of traditional chinese medicine for relief of pain. the purpose of this study was the immediate & latent of low power laser ga-al-as irradiation applied to acupuncture points on experimental pain threshold. methods: this quasi-experimental study was conducted on seventy adult women ranging from 20 to 40 years old assigned randomly into two groups...