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Chaos in 1D Radiative Edge Plasmas [PDF]

Contributions to Plasma Physics, 2002
Bifurcation and chaos in radiative edge plasmas are investigated on the basis of a periodically driven reaction-diffusion equation which results from the time dependent 1d heat conduction equation including a given periodically time-modulated impurity density. The temporal problem shows the transition to chaos through the Feigenbaum route.
openaire   +2 more sources

Experimental evidence for the drift wave nature of the weakly coherent mode in ASDEX Upgrade I-mode plasmas

Nuclear Fusion
The improved energy confinement mode (I-mode) is a potential candidate for future fusion power plants, as it combines ELM-free operation with good confinement. The unusual edge transport and turbulence in this regime is still not fully understood.
M. Herschel, T. Happel, D. Wendler, M. Griener, J. Kalis, R. Fischer, P. Manz, U. Stroth, the ASDEX Upgrade Team   +8 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Effect of local wall clearance on scrape-off layer electron density profiles in ASDEX Upgrade

Nuclear Fusion
The plasma electron density is measured with multiple diagnostics in the scrape-off layer of the ASDEX Upgrade tokamak. The recorded values are typically in good agreement in the case of exponentially decaying profiles at low densities, but they become ...
B. Tal, E. Wolfrum, M. Bernert, G. Birkenmeier, D. Brida, R. Fischer, G. Grenfell, M. Griener, O. Grover, J. Hobirk, B. Kurzan, T. Lunt, P.A. Schneider, N. Vianello, D. Wendler, the ASDEX Upgrade Team, the EUROfusion Tokamak Exploitation Team   +16 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Plasma edge modelling with ICRF coupling

EPJ Web of Conferences, 2017
The physics of Radio-Frequency (RF) wave heating in the Ion Cyclotron Range of Frequencies (ICRF) in the core plasmas of fusion devices are relatively well understood while those in the Scrape-Off Layer (SOL) remain still unresolved.
Zhang Wei, Coster David, Feng Yuhe, Lunt Tilmann, Aguiam Diogo, Bilato Roberto, Bobkov Volodymyr, Jacquot Jonathan, Jacquet Philippe, Lerche Ernesto, Noterdaeme Jean-Marie, Tierens Wouter   +11 more
doaj   +1 more source

Edge plasma measurements on the OP 1.2a divertor plasmas at W7-X using the combined probe

Nuclear Materials and Energy, 2019
During its second operational campaign (OP 1.2a) W7-X operated with an edge island divertor. Much higher densities (1020m−3) than in to the previous, limiter campaign were achieved.
P. Drews, C. Killer, J. Cosfeld, A. Knieps, S. Brezinsek, M. Jakubowski, C. Brandt, S. Bozhenkov, A. Dinklage, J. Cai, M. Endler, K. Hammond, M. Henkel, Y. Gao, J. Geiger, O. Grulke, D. Höschen, R. König, A. Krämer-Flecken, Y. Liang, Y. Li, S. Liu, H. Niemann, D. Nicolai, O. Neubauer, U. Neuner, M. Rack, K. Rahbarnia, L. Rudischhauser, N. Sandri, G. Satheeswaran, S. Schilling, H. Thomsen, T. Windisch, S. Sereda   +34 more
doaj   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Numerical investigation on lithium transport in the edge plasma of EAST real-time- Li-injection experiments in the frame of BOUT++

Nuclear Materials and Energy, 2017
To study the transport of Li species in the plasma with real-time Li aerosol injection on EAST, a model has been developed by reducing Braginskii's equations, and implemented in the frame of BOUT++.
N.M. Li, J.Z. Sun, Z.H. Wang, X.Q. Xu, Z. Sun, L. Wang, J.S. Hu, D.Z. Wang   +7 more
doaj   +1 more source