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BMCBI
2007
94views more  BMCBI 2007»
13 years 10 months ago
A structural analysis of in vitro catalytic activities of hammerhead ribozymes
Background: Ribozymes are small catalytic RNAs that possess the dual functions of sequencespecific RNA recognition and site-specific cleavage. Trans-cleaving ribozymes can inhibit...
Yu Shao, Susan Wu, Chi Yu Chan, Jessie R. Klapper,...
BC
2005
79views more  BC 2005»
13 years 10 months ago
Stochastic resonance of localized activity driven by common noise
Abstract We study the influence of spatially correlated noise on the transient dynamics of a recurrent network with Mexican-Hat type connectivity. We derive the closed form of the ...
Kosuke Hamaguchi, Masato Okada, Shigeru Kubota, Ka...
ESANN
2001
13 years 11 months ago
Transfer functions: hidden possibilities for better neural networks
Abstract. Sigmoidal or radial transfer functions do not guarantee the best generalization nor fast learning of neural networks. Families of parameterized transfer functions provide...
Wlodzislaw Duch, Norbert Jankowski
TMI
2010
182views more  TMI 2010»
13 years 8 months ago
A Bayesian Mixture Approach to Modeling Spatial Activation Patterns in Multisite fMRI Data
Abstract—We propose a probabilistic model for analyzing spatial activation patterns in multiple functional magnetic resonance imaging (fMRI) activation images such as repeated ob...
Seyoung Kim, Padhraic Smyth, Hal S. Stern
MICCAI
2008
Springer
14 years 11 months ago
Discovering Structure in the Space of Activation Profiles in fMRI
We present a method for discovering patterns of activation observed through fMRI in experiments with multiple stimuli/tasks. We introduce an explicit parameterization for the profi...
Danial Lashkari, Ed Vul, Nancy Kanwisher, Polin...