temporomandibular joint ankylosis causes limitation in mouth opening and establishes severe deformity and asymmetry in patient’s face, especially in children. surgery is the only treatment. this study was conducted to compare the effect of two surgical approaches, gap arthropasty and interpositional gap arthroplasty, on rate of maximum interincisal opening in temporomandibular joint ankylosis. ...

Gap junctions are known to be important for many network functions such as synchronization of activity and the generation of waves and oscillations. Gap junctions have also been proposed to be essential for the generation of early embryonic activity. We have previously shown that the amplitude of electrical signals propagating across gap-junctionally coupled passive cables is maximized at a uni...

This paper discusses a sentence generation system PROTECTOR which uses: (i) a non-hierarchical semantic representation which allows for flexible lexical choice and un~form treatment of different languages, (ii) a lexicalised D-Tree Grammar which is very similar to TreeAdjoining Grammar in spirit, and {iii) dynamic programming techniques to avoid doing redundant computations. We review the motiv...

We observed highly efficient generation of electron-hole pairs due to impact excitation in single-walled carbon nanotube p-n junction photodiodes. Optical excitation into the second electronic subband E22 leads to striking photocurrent steps in the device I-V(SD) characteristics that occur at voltage intervals of the band-gap energy E(GAP)/e. Spatially and spectrally resolved photocurrent combi...

The Army Research Laboratory (ARL), in collaboration with the Air Force Phillips Laboratory, has been developing the fabrication process for lateral topology, highpower photoconductive semiconductor switches (PCSS) used in phased-array, ultrawideband (UWB) sources. This work presents issues associated with the development of these switches. First-generation devices (1.0 em gap spacing) have bee...

We analyze theoretically and study experimentally the mechanisms of enhancement of the sum frequency and second harmonic generation in a finite one-dimensional photonic band gap structure with second order nonlinearity under Bragg diffraction conditions. It is shown that, near the photonic band gap edge, the efficiency of conversion in sum frequency and second harmonic generation processes can ...

Not all learning takes place in an educational setting: more and more self-motivated learners are turning to on-line text to learn about new topics. Our goal is to provide such learners with the well-known benefits of testing by automatically generating quiz questions for online text. Prior work on question generation has focused on the grammaticality of generated questions and generating effec...

This is a collection of examples showing how the GAP system [GAP12] can be used to compute information about the probabilistic generation of finite almost simple groups. It includes all examples that were needed for the computational results in [BGK08]. The purpose of this writeup is twofold. On the one hand, the computations are documented this way. On the other hand, the GAP code shown for th...

Hippocampal theta rhythm is probably the best example of oscillations and synchrony phenomena occurring in neuronal networks of the central nervous system. It is well known that intraneuronal communication via chemical and electrical synapses underlies these oscillatory processes. Despite well-documented knowledge concerning the participation of chemical transmission in production of theta acti...

Over the past decade the demise of privacy has been repeatedly pronounced by renowned technology executives such as Mark Zuckerberg declaring privacy as passé and anachronistic“so 20th century” the concern of old people. However, there has been relatively little research into privacy perception and behaviour among different generations that may relate to how people navigate their private lives ...