Dimitrios Petropoulos

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This study was carried out to identify lamprey neurones relaying trigeminal sensory inputs to reticulospinal cells. Double labeling with fluorescent tracers was used in vitro. Fluorescein-conjugated dextran amines were applied to the proximal stump of the cut trigeminal nerve on both sides, and Texas Red-conjugated dextran amines were injected unilaterally(More)
Acknowledgments Following the publication of version 2.0, the author has received useful comments and contributions from the following people (in alphabetical order): This document has and can become better thanks to such feedback. No document can be comprehensive, though. The reader is highly encouraged to look at other works such as those listed in the(More)
The inputs to trigeminal motoneurons from sensory afferents and rhombencephalic premotor regions were studied in isolated brainstem preparations of adult lampreys (Petromyzon marinus). Stimulation of both trigeminal nerves, contralateral nucleus motorius nervi trigemini, nucleus sensibilis nervi trigemini and ipsilateral rostral reticular formation elicited(More)
This paper examines the Zhou-Gollmann fair non-repudiation protocol as well as its modified version of Kim et al. We describe how these protocols are vulnerable to an attack by a misbehaving originator which may degrade the efficiency or even cause denial of the non-repudiation service and propose a modification which prevents this attack. Furthermore, we(More)
We present an extraction algorithm for spectral phase interferometry for direct field reconstruction (SPIDER) in the so-called X-SPIDER configuration. Our approach largely extends the measurable time windows of pulses without requiring any modification to the experimental X-SPIDER setup. All-optical phase and amplitude regenerator for next-generation(More)
We demonstrate an ultracompact, chip-based, all-optical exclusive-OR (XOR) logic gate via slow-light enhanced four-wave mixing (FWM) in a silicon photonic crystal waveguide (PhCWG). We achieve error-free operation (<10 −9) for 40 Gbit/s differential phase-shift keying (DPSK) signals with a 2.8 dB power penalty. Slowing the light to v g = c/32 enables a FWM(More)
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