E
Efstratios K. Kosmidis
Researcher at Aristotle University of Thessaloniki
Publications - 35
Citations - 1000
Efstratios K. Kosmidis is an academic researcher from Aristotle University of Thessaloniki. The author has contributed to research in topics: Spike sorting & Stratosphere. The author has an hindex of 15, co-authored 35 publications receiving 919 citations. Previous affiliations of Efstratios K. Kosmidis include French Institute of Health and Medical Research & Marine Biological Laboratory.
Papers
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Journal ArticleDOI
Imaging brain activity with voltage- and calcium-sensitive dyes.
Bradley J. Baker,Efstratios K. Kosmidis,Dejan Vucinic,Chun X. Falk,Lawrence B. Cohen,Maja Djurisic,Dejan Zecevic +6 more
TL;DR: This paper presents three examples of imaging brain activity with voltage- or calcium-sensitive dyes and then discusses the methodological aspects of the measurements that are needed to achieve an optimal signal-to-noise ratio.
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Three fluorescent protein voltage sensors exhibit low plasma membrane expression in mammalian cells
Bradley J. Baker,Hanson Lee,Vincent A. Pieribone,Lawrence B. Cohen,Ehud Y. Isacoff,Thomas Knöpfel,Efstratios K. Kosmidis +6 more
TL;DR: Three first-generation fluorescent protein voltage sensitive probes (FP-voltage sensors) were characterized in mammalian cells and demonstrated poor plasma membrane expression for Flare, SPARC and VSFP-1 in both HEK 293 cells and dissociated hippocampal neurons.
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Interglomerular center-surround inhibition shapes odorant-evoked input to the mouse olfactory bulb in vivo.
TL;DR: The glomerular responses in 2- to 4-wk-old mice before and after suppressing presynaptic inhibition onto the receptor neuron terminals with the GABAB antagonist, CGP46381, are compared and it is found that the input maps are modified by an apparent center-surround inhibition.
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Performance evaluation of PCA-based spike sorting algorithms
TL;DR: This work estimates the optimum PCA-based feature space by evaluating the algorithm's performance on simulated series of action potentials and introduces a new metric to define clustering error considering over-clustering more favorable than under-Clustering as proposed by experimentalists for data.
Journal ArticleDOI
Arctic ozone loss in threshold conditions: Match observations in 1997/1998 and 1998/1999
A. Schulz,Markus Rex,Neil R. P. Harris,Geir O. Braathen,E. Reimer,R. Alfier,I. Kilbane-Dawe,Stephen D. Eckermann,Marc Allaart,M. Alpers,B. R. Bojkov,J. Cisneros,Hans Claude,Emilio Cuevas,Jonathan Davies,H. De Backer,H. Dier,Valery Dorokhov,H. Fast,Sophie Godin,Beverly J. Johnson,B. Kois,Yutaka Kondo,Efstratios K. Kosmidis,Esko Kyrö,Z. Litynska,I. S. Mikkelsen,M. J. Molyneux,G. Murphy,Tomohiro Nagai,Hideaki Nakane,Fiona M. O'Connor,C. Parrondo,F. J. Schmidlin,P. Skrivankova,Costas A. Varotsos,C. Vialle,P. Viatte,Vladimir Yushkov,Christos Zerefos,P. von der Gathen +40 more
TL;DR: In this article, the authors showed that enhanced chlorine alone does not provide a sufficient condition for ozone loss and that the evolution of stratospheric temperatures over the next decade will be the determining factor for the amount of wintertime chemical ozone loss in the Arctic stratosphere.