Results 81 to 90 of about 1,473,692 (365)

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

open access: yesMathematics, 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

Stabilizing periodic orbits above the elliptic plane in the solar sail 3-body problem [PDF]

open access: yes, 2008
We consider periodic orbits high above the ecliptic plane in the Elliptic Restricted Three-Body Problem where the third massless body is a solar sail.
Biggs, J.D., McInnes, C., Waters, T.
core  

A Trace Formula for Products of Diagonal Matrix Elements in Chaotic Systems

open access: yes, 1999
We derive a trace formula for $\sum_n A_{nn}B_{nn}...\delta(E-E_n)$, where $A_{nn}$ is the diagonal matrix element of the operator $A$ in the energy basis of a chaotic system.
B. Eckhardt   +21 more
core   +3 more sources

Periodic orbits, breaktime and localization [PDF]

open access: yesJournal of Physics A: Mathematical and General, 1998
The main goal of the present paper is to convince that it is feasible to construct a `periodic orbit theory' of localization by extending the idea of classical action correlations. This possibility had been questioned by many researchers in the field of `Quantum Chaos'.
openaire   +3 more sources

MET and NF2 alterations confer primary and early resistance to first‐line alectinib treatment in ALK‐positive non‐small‐cell lung cancer

open access: yesMolecular Oncology, EarlyView.
Alectinib resistance in ALK+ NSCLC depends on treatment sequence and EML4‐ALK variants. Variant 1 exhibited off‐target resistance after first‐line treatment, while variant 3 and later lines favored on‐target mutations. Early resistance involved off‐target alterations, like MET and NF2, while on‐target mutations emerged with prolonged therapy.
Jie Hu   +11 more
wiley   +1 more source

GEOPHYSICAL EFFECTS OF THE EARTH'S MONTHLY MOTION

open access: yesOdessa Astronomical Publications, 2013
The generation of a lunar tidal force is a major geophysical effect of the Earth's monthly motion. It is shown that synoptic processes vary simultaneously with tidal oscillations of the Earth's rotation rate and weather exhibits changes near their ...
N. S. Sidorenkov, T. S. Zhigailo
doaj   +1 more source

Periodic solutions to symmetric Newtonian systems in neighborhoods of orbits of equilibria

open access: yesElectronic Research Archive, 2022
The aim of this paper is to prove the existence of periodic solutions to symmetric Newtonian systems in any neighborhood of an isolated orbit of equilibria.
Anna Gołȩbiewska   +3 more
doaj   +1 more source

Comparing periodic-orbit theory to perturbation theory in the asymmetric infinite square well

open access: yes, 2009
An infinite square well with a discontinuous step is one of the simplest systems to exhibit non-Newtonian ray-splitting periodic orbits in the semiclassical limit.
D. J. Griffiths   +7 more
core   +1 more source

A new simple bifurcation of a periodic orbit of ``blue sky catastrophe'' type

open access: yes, 2005
In this paper, we study a global bifurcation of codimension one connected with the disappearance (for positive values of a parameter ) of a saddle-node periodic orbit L0 under the condition that all orbits from the locally unstable manifold W u of L0 ...
L. Shilnikov, D. Turaev
semanticscholar   +1 more source

Association of high‐dose radioactive iodine therapy with PPM1D‐mutated clonal hematopoiesis in older individuals

open access: yesMolecular Oncology, EarlyView.
In thyroid cancer patients, high‐dose (≥7.4 GBq) radioactive iodine therapy (RAIT) was associated with a higher prevalence of clonal hematopoiesis (variant allele frequency >2%) in individuals aged ≥50 years (OR = 2.44). In silico analyses showed that truncating PPM1D mutations conferred a selective advantage under these conditions.
Jaeryuk Kim   +11 more
wiley   +1 more source

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