Results 61 to 70 of about 165,032 (291)

Periodic-Orbit Theory of Anderson Localization on Graphs

, 1999
We present the first quantum system where Anderson localization is completely described within periodic-orbit theory. The model is a quantum graph analogous to an a-periodic Kronig-Penney model in one dimension.
A. F. Nikiforov, D. Cohen, D. Cohen, D. J. Thouless, D. Zeilberger, E. Abrahams, F. J. Dyson, H. Schanz, Holger Schanz, M. V. Berry, M. V. Berry, N. Argaman, N. Argaman, N. F. Mott, R. A. Jalabert, R. Kronig, T. Dittrich, T. Dittrich, T. Kottos, T. Kottos, Uzy Smilansky, V. L. Berezinskij   +21 more
core   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Dynamic Analysis of a Pest Management Smith Model with Impulsive State Feedback Control and Continuous Delay

Mathematics, 2019
In our paper, we propose a single population Smith model with continuous delay and impulsive state feedback control. The application in pest management of this model is investigated.
Zhenzhen Shi, Yaning Li, Huidong Cheng
doaj   +1 more source

Periodic Orbits and Warps [PDF]

Symposium - International Astronomical Union, 1983
Orbit calculations were done in a rotating triaxial system with a density distribution in accordance with recent observations of spiral galaxies. A search was made for simple closed orbits which are tilted with respect to the plane of the galaxy. A family of stable prograde tilted orbits was found which can explain warps as stationary phenomena.
openaire   +3 more sources

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

Molecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller, Susanne Ebner, Carmen Haselrieder, Julia K. Günther, Astrid Drasche, Sophie Strich, Chiara Volani, Andrea Medici, Aleksandar Nikolajevic, Alex Deltedesco, Johannes E. Sigmund, Michael J. Blumer, Martin Hermann, Johanna Vanacker, Gerald Brandacher, Eduard Stefan, Omar Torres‐Quesada, Jakob Troppmair   +17 more
wiley   +1 more source

Periodic solutions with long period for the Mackey–Glass equation

Electronic Journal of Qualitative Theory of Differential Equations, 2020
The limiting version of the Mackey–Glass delay differential equation $x'(t)=-ax(t)+bf(x(t-1))$ is considered where $a,b$ are positive reals, and $f(\xi)=\xi$ for $\xi\in[0,1)$, $f(1)=1/2$, and $f(\xi)=0$ for $\xi> 1$.
Tibor Krisztin
doaj   +1 more source

Periodic orbit theory in fractal drum

, 2005
The level statistics of pseudointegrable fractal drums is studied numerically using periodic orbit theory. We find that the spectral rigidity $\Delta_3(L)$, which is a measure for the correlations between the eigenvalues, decreases to quite small values (
Berry, Biswas, Biswas, Biswas, Cheon, Dyson, Even, Hlushchuk, Hébert, Jesper Mellenthin, Mehta, Mellenthin, Richens, Russ, Sapoval, Sapoval, Shudo, Stefanie Russ   +17 more
core   +2 more sources

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

Molecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken, Andrea Abel Gutierrez, Imke van Rossum, Cornelia G. Spruijt, Michiel Vermeulen, Guido van Mierlo, Blanca Scheijen, Annemiek B. van Spriel   +7 more
wiley   +1 more source

Orbit Determination Error Analysis for the KOMPSAT [PDF]

Journal of Astronomy and Space Sciences, 1998
Orbit error analysis was performed for the GPS navigation solutions and ground station tracking data of the KOMPSAT (Korea Multi-Purpose SATellite), which will be launched in 1999 for cartography of Korean peninsula as main mission. A least square method
Jeong-Sook Lee, Byoung-Sun Lee
doaj  

Spectral statistics for unitary transfer matrices of binary graphs

, 2000
Quantum graphs have recently been introduced as model systems to study the spectral statistics of linear wave problems with chaotic classical limits. It is proposed here to generalise this approach by considering arbitrary, directed graphs with unitary ...
Berkolaiko G, Berry M V, Bogomolny E, Bogomolny E, Dembo A, Gregor Tanner, Gutzwiller M C, Gutzwiller M C, Hannay J H, Keating J P, Keating J P, Keating J P, Mehta M L, Saraceno M, Schanz H, Schuster H G, Stanley R P, Tanner G, Whitney R S   +18 more
core   +1 more source