نتایج جستجو برای: spike per unit area

تعداد نتایج: 1321917  

Journal: :Journal of neurophysiology 2013
John H Wittig Kwabena Boahen

A fundamental question in neuroscience is how neurons perform precise operations despite inherent variability. This question also applies to neuromorphic engineering, where low-power microchips emulate the brain using large populations of diverse silicon neurons. Biological neurons in the auditory pathway display precise spike timing, critical for sound localization and interpretation of comple...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2003
Michael R DeWeese Michael Wehr Anthony M Zador

Neurons are often assumed to operate in a highly unreliable manner: a neuron can signal the same stimulus with a variable number of action potentials. However, much of the experimental evidence supporting this view was obtained in the visual cortex. We have, therefore, assessed trial-to-trial variability in the auditory cortex of the rat. To ensure single-unit isolation, we used cell-attached r...

Six rainfed durum wheat genotypes (Chehel daneh, Gerdish, Zardak, Syrian-1, Waha and Knd1149//68/ward) and their complete diallel progenies of F1 generation were evaluted in a randomized complete block design with two replications. Analysis of variance indicated genetic differences among genotypes. General combining ability (GCA) was significant for all of the studied traits except hundred grai...

Journal: :Field Crops Research 2022

Most of the required increases in food production over next decades are expected to be achieved through crop yield. As wheat is essential for security it worrying that its yield gains last two were small. To achieve further critical continue increasing number grains per unit area (GN m-2), trait best related In this context, relevant identify main determinants GN m-2 response genetic and enviro...

ژورنال: علوم آب و خاک 2002
احمدرضا باقریان نائینی, , محمدرضا خواجه ‌پور, ,

It is believed that various types of field bean, including pinto, white and red, differ in adaptability to high temperatures and may, thus, differ in response to delay in planting. In order to evaluate this response, an experiment was conducted during 1996 at the Agricultural Research Station, Isfahan University of Technology, using a randomized complete block design with split-plot layout. M...

ژورنال: علوم آب و خاک 2007
محمود خدام باشی امامی, , سید حسین محمدی, , عبدالمجید رضایی, ,

Half diallel crosses of nine Iranian wheat cultivars were used to estimate the general and specific combining ability effects and other genetic parameters related to yield and its components. Parents with F2 generations were evaluated at Research Farm, College of Agriculture, University of Shahrekord, in a randomized complete block design with 3 replications. Partitioning of genotypes mean squa...

محمود خدام باشی امامی, , سید حسین محمدی, , عبدالمجید رضایی, ,

Half diallel crosses of nine Iranian wheat cultivars were used to estimate the general and specific combining ability effects and other genetic parameters related to yield and its components. Parents with F2 generations were evaluated at Research Farm, College of Agriculture, University of Shahrekord, in a randomized complete block design with 3 replications. Partitioning of genotypes mean squa...

احمدرضا باقریان نائینی, , محمدرضا خواجه ‌پور, ,

It is believed that various types of field bean, including pinto, white and red, differ in adaptability to high temperatures and may, thus, differ in response to delay in planting. In order to evaluate this response, an experiment was conducted during 1996 at the Agricultural Research Station, Isfahan University of Technology, using a randomized complete block design with split-plot layout. Mai...

Majid Norouzi Mehdi Taghizadeghan, Saeid Aharizad

To identifying of the high yielding wheat lines with optimal characteristics and to determine the traits which could be used as the selection index for increasing of grain yield, 40 recombinant inbred lines derived from a cross between Norstar and Zagros cultivars were evaluated in a randomized complete block design with three replications. The measured characters consisted of peduncle weight, ...

Journal: :Bio Systems 1998
R Van Rullen J Gautrais A Delorme S Thorpe

The speed with which neurones in the monkey temporal lobe can respond selectively to the presence of a face implies that processing may be possible using only one spike per neurone, a finding that is problematic for conventional rate coding models that need at least two spikes to estimate interspike interval. One way of avoiding this problem uses the fact that integrate-and-fire neurones will t...

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