Working papers are in draft form. This working paper is distributed for purposes of comment and discussion only. It may not be reproduced without permission of the copyright holder. Copies of working papers are available from the author. I confirm the finding that the propensity to start a new firm rises sharply among those in the top five per-centiles of personal wealth. This pattern is more p...

A new troglobitic spider species, Nesticus dimensis n. sp. (felmale male), inhabiting the Dim Cave of Alanya (Antalya Prov., Turkey) is diagnosed and described. The new species belongs to the Eastern Mediterranean Nesticus Group, which includes N. eremita and N. speluncarum as the most common and widespread species along with N. arenstorffi and N. henderickxi. Evolutionary relationships of the ...

The interaction between biofuels and food markets remains a policy issue for a number of reasons. There is a continuing need to understand the role of biofuels in the recent spikes in global food prices. Also, there is an ongoing discussion of changes to biofuel policy as a means to cope with severe weather-induced crop losses. Lastly, there are potential interactions between food markets and a...

The orientation tuning width of the spike response of neuron in V1 does not change with the contrast of input signals. It is also known that cortical neurons exhibit tremendous irregularity in their discharge pattern, which is conserved over large regions of cerebral cortex. To produce this irregularity in responses the neurons must receive balanced excitation and inhibition. By a modeling stud...

تشبیه مضمر از همان آغاز شعر فارسی مورد توجه شاعران بوده و انواع مختلفی از آن در دیوان شاعران فارسی­گو به­کاررفته است. هرکدام از شاعران با راه بردن به تشبیهات تازه­ و بی­سابقه­ و ایجاد بهرۀ زیباشناختی مضاعف برای خوانندگان اشعارشان، انواع جدیدی را به آن افزوده­اند. آنان سعی کرده­اند ارتباط میان مشبه و مشبهٌ­به را دورتر سازند تا تشبیه از غرابت و زیبایی بیشتری برخوردار شود. در کتب بلاغی عربی و فارسی...

We describe in this paper an advanced protocol for the discrimination and the classification of neuronal spike waveforms within multichannel electrophysiological recordings. Sparse decomposition was used to serarate the linearly independent signals underlying sensory information in cortical spike firing patterns. We introduce some modifications in the the IDE algorithm to take into account prio...

This paper presents a gas identification circuit for tin oxide (SnO2) gas sensors. The proposed circuit uses 2 gas sensors with different characteristics to achieve gas identification. A spike train is generated during operation, with the frequency of spike occurrence being gas dependent but concentration invariant. As a result, the spike firing frequency can be used to achieve gas identificati...

This paper examines sentence repetition and narrative speech data produced by hearing-impaired and normally hearing children with matched gender, age and level of speech comprehension. We assessed these two kinds of speech styles by talker intelligibility, vowel space, and spike production in plosives. In both speaking styles, normally hearing children performed better in talker intelligibility...

We analyzed sustaining fiber responses in the crayfish visual system to light pulses using information processing techniques. The light pulse stimuli elicited a transient and a steadystate component in the EPSP input and in the firing rate of the spike train output. The overall information transfer of the system was very low ( ̃ ), with a sharp increase during the transient portion of the respon...