Zobrazeno 1 - 10
of 77
pro vyhledávání: '"R. E. Amritkar"'
Autor:
G. Kashyap, D. Bapat, D. Das, R. Gowaikar, R. E. Amritkar, G. Rangarajan, V. Ravindranath, G. Ambika
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Abstract We present observational evidence from studies on primary cortical cultures from AD transgenic mice, APPSwe/PS1ΔE9 (APP/PS1) mice, for significant decrease in total spine density at DIV-15 and onward. This indicates reduction in potential h
Externí odkaz:
https://doaj.org/article/1536a4a95e344c3ba52a07cabdc745fe
Autor:
Govindan Rangarajan, R. E. Amritkar, G. Kashyap, Vijayalakshmi Ravindranath, G. Ambika, Debasish Das, Deepti Bapat, Ruturaj Gowaikar
Publikováno v:
Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Scientific Reports, Nature Publishing Group, 2019, 9 (1), pp.6555. ⟨10.1038/s41598-019-43076-y⟩
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Scientific Reports, Nature Publishing Group, 2019, 9 (1), pp.6555. ⟨10.1038/s41598-019-43076-y⟩
We present observational evidence from studies on primary cortical cultures from AD transgenic mice, APPSwe/PS1ΔE9 (APP/PS1) mice, for significant decrease in total spine density at DIV-15 and onward. This indicates reduction in potential healthy sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0890594c8acf004618a673a8819e05c9
https://doi.org/10.1038/s41598-019-43076-y
https://doi.org/10.1038/s41598-019-43076-y
Publikováno v:
Physical review. E. 97(6-1)
To model the dependence of extreme events on locations, we consider extreme events of Brownian particles in a potential. We find that barring the exception of very large potentials and/or very small regions, in general, the probability of extreme eve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b60ef1b2170877c7a87c9394fb0a720
https://pubmed.ncbi.nlm.nih.gov/30011488
https://pubmed.ncbi.nlm.nih.gov/30011488
Autor:
R. E. Amritkar, Arindam Saha
Publikováno v:
Pramana. 83:945-953
Kuramoto oscillators have been proposed earlier as a model for interacting systems that exhibit synchronization. In this article, we study the difference between networks with symmetric and asymmetric distribution of natural frequencies. We first ind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8faad02ac5028cd9f3afa3b60cf3850d
https://doi.org/10.1007/s12043-014-0831-5
https://doi.org/10.1007/s12043-014-0831-5
Autor:
R. E. Amritkar, G. Ambika
Publikováno v:
Chaos, Solitons & Fractals. 44:1035-1042
We present a mechanism for synchronizing time delay systems using one way coupling with a variable delay in coupling that is reset at finite intervals. We present the analysis of the error dynamics that helps to isolate regions of stability of the sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dc303ecca19633f433c9769c2bdf281
https://doi.org/10.1016/j.chaos.2011.08.007
https://doi.org/10.1016/j.chaos.2011.08.007
Autor:
G. Ambika, R. E. Amritkar
Publikováno v:
Pramana. 77:891-904
We present a mechanism for the synchronization of one-way coupled nonlinear systems in which the coupling uses a variable delay, that is reset at finite intervals. Here the delay varies in the same way as the system in time and so the coupling functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11506b075cd342849aff25ca9cb9e2ea
https://doi.org/10.1007/s12043-011-0195-z
https://doi.org/10.1007/s12043-011-0195-z
Publikováno v:
Physica D: Nonlinear Phenomena. 239:420-427
A chaotic attractor is usually characterised by its multifractal spectrum which gives a geometric measure of its complexity. Here we present a characterisation using a minimal set of independent parameters which is uniquely determined by the underlyi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0c65f3442be3d999dccbaee287dc1d1
https://doi.org/10.1016/j.physd.2010.01.008
https://doi.org/10.1016/j.physd.2010.01.008
Autor:
Govindan Rangarajan, R. E. Amritkar
Publikováno v:
International Journal of Bifurcation and Chaos. 19:4263-4271
A system of many coupled oscillators on a network can show multicluster synchronization. We obtain existence conditions and stability bounds for such a multicluster synchronization. When the oscillators are identical, we obtain the interesting result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a78a5f529f9df3e538faf5daefeaad40
https://doi.org/10.1142/s0218127409025353
https://doi.org/10.1142/s0218127409025353
Autor:
R. E. Amritkar
Publikováno v:
Pramana. 71:195-201
We study the synchronization of coupled dynamical systems on networks. The dynamics is governed by a local nonlinear oscillator for each node of the network and interactions connecting different nodes via the links of the network. We consider existen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4a7b3e6000c5fc47c2a4be4a1ecea3c
https://doi.org/10.1007/s12043-008-0153-6
https://doi.org/10.1007/s12043-008-0153-6
Autor:
R. E. Amritkar, Suman Acharyya
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 92(5)
We study the generalized synchronization and its stability using master stability function (MSF), in a network of coupled nearly identical dynamical systems. We extend the MSF approach for the case of degenerate eigenvalues of the coupling matrix. Us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae1902fd96505847d2a24b0382821e2b
https://pubmed.ncbi.nlm.nih.gov/26651757
https://pubmed.ncbi.nlm.nih.gov/26651757