We propose a new method for creating an optimal coherence in a two-level system (TLS) based on adiabatic following. Optimal coherence is achieved by choosing the time-dependent phase of the pulse that provides vanishing field-TLS detuning dðtÞ at central time when the pulse amplitude reaches maximum. For example, dðtÞ 1⁄4 d0ð1 expððt t0Þ=s0ÞÞ for t 6 t0 and d 1⁄4 0 for t > t0. The pulse envelop...

There are various types of lasers available for hair reduction, but the choice of an ideal laser for ethnic skin has its own limitations. The choice of the right laser for the right skin type is very important. Before starting with the laser therapy, it is important to assess the skin type, the fluence, the pulse duration and the type of laser to be used.

OBJECTIVE To determine the prevalence of memory impairment and to explore the determinant factors of memory impairment severity in patients diagnosed with multiple sclerosis (MS). METHODS A cross-sectional study was conducted in the Neurology Center of Shafa Hospital in Kerman, Iran between February and November 2008 on 100 MS patients whose diseases were confirmed by a neurologist. Patients ...

Distortions in temporal memory can occur as a function of differences in signal modalities and/or by the encoding of multiple signal durations associated with different timing tasks into a single memory distribution – an effect referred to as “memory mixing”. Evidence for this type of memory distortion and/or categorization of signal durations as an explanation for changes in temporal context (...

Memory B cell responses are more rapid and of greater magnitude than are primary Ab responses. The mechanisms by which these secondary responses are eventually attenuated remain unknown. We demonstrate that the transcription factor ZBTB32 limits the rapidity and duration of Ab recall responses. ZBTB32 is highly expressed by mouse and human memory B cells but not by their naive counterparts. Zbt...

Current speech synthesis efforts, both in research and in applications, are dominated by methods based on concatenation of spoken units. New progress in the concatenative text-to-speech (TTS) technology can be made mainly from two directions, either by reducing the memory footprint to integrate the system into embedded system, or by improving the synthesized speech quality in terms of intelligi...

Pigeon’s retention functions for duration samples differ qualitatively in choice and successive delayed-matching-to-sample tasks. This research tested procedures designed to be hybrids of these tasks. In Experiment 1, adding a fixed-interval component to the test phase of the choice procedure did not eliminate the ‘‘respond-short’’ effect that is characteristic of retention functions for durati...

Both anecdotal accounts and experimental evidence suggest that people underestimate how long it will take them to complete future tasks. A possible reason for this tendency is that people remember tasks as taking less time than they actually did, with these biased memories causing a corresponding bias in prediction. Two experiments were performed to determine whether or not a systematic bias in...

Time and space represent two key aspects of episodic memories, forming the spatiotemporal context of events in a sequence. Little is known, however, about how temporal information, such as the duration and the order of particular events, are encoded into memory, and if it matters whether the memory representation is based on recollection or familiarity. To investigate this issue, we used a real...