Results 131 to 140 of about 1,426,127 (317)

Analysis and control of displaced periodic orbits in the Earth-Moon system [PDF]

open access: yes, 2009
We consider displaced periodic orbits at linear order in the circular restricted Earth-Moon system, where the third massless body is a solar sail. These highly non-Keplerian orbits are achieved using an extremely small sail acceleration. In this paper we
McInnes, Colin R., Simo, Jules
core  

The harmonic structure of generic Kerr orbits

open access: yes, 2011
Generic Kerr orbits exhibit intricate three-dimensional motion. We offer a classification scheme for these intricate orbits in terms of periodic orbits.
Grossman, Rebecca   +2 more
core   +1 more source

Adenosine‐to‐inosine editing of miR‐200b‐3p is associated with the progression of high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
A‐to‐I editing of miRNAs, particularly miR‐200b‐3p, contributes to HGSOC progression by enhancing cancer cell proliferation, migration and 3D growth. The edited form is linked to poorer patient survival and the identification of novel molecular targets.
Magdalena Niemira   +14 more
wiley   +1 more source

Arithmetic and growth of periodic orbits

open access: yes, 1999
We give necessary and sufficient conditions for a sequence to be exactly realizable as the sequence of numbers of periodic points in a dynamical system. Using these conditions, we show that no non-constant polynomial is realizable, and give some conditions on realizable binary recurrence sequences.
Puri, Yash, Ward, Thomas
openaire   +4 more sources

The influence of ROS1 fusion partners and resistance mechanisms in ROS1‐TKI‐treated non‐small cell lung cancer patients

open access: yesMolecular Oncology, EarlyView.
This real‐world study of ROS1+ NSCLC highlights fusion diversity, treatment outcomes with crizotinib and lorlatinib, and in vitro experiments with resistance mechanisms. G2032R drives strong resistance to ROS1‐targeted TKIs, especially lorlatinib. Fusion partner location does not affect overall survival to crizotinib or lorlatinib. Findings support the
Fenneke Zwierenga   +8 more
wiley   +1 more source

Periodic Orbits Close to That of the Moon in Hill's Problem

open access: yesFrontiers in Astronomy and Space Sciences, 2018
In the framework of the restricted, circular, 3-dimensional 3-body problem Sun-Earth-Moon, Valsecchi et al. (1993) found a set of 8 periodic orbits, with duration equal to that of the Saros cycle, and differing only for the initial phases, in which the ...
Giovanni B. Valsecchi   +1 more
doaj   +1 more source

Existence of periodic orbits for geodesible vector fields on closed 3-manifolds

open access: yes, 2009
In this paper we deal with the existence of periodic orbits of geodesible vector fields on closed 3-manifolds. A vector field is geodesible if there exists a Riemannian metric on the ambient manifold making its orbits geodesics.
Rechtman, Ana
core   +1 more source

Periodic Orbits of Isometric Flows [PDF]

open access: yesNagoya Mathematical Journal, 1972
Let M be a compact C∞ Riemannian manifold, X a Killing vector field on M, and φt its 1-parameter group of isometries of M. In this, paper, we obtain some basic properties of the set of periodic points of φt. We show that the set of least periods is always finite, and the set P(X, t) of points of M having least period t for the vector field X is a ...
openaire   +3 more sources

Preparation and characterization of renal cell peptides from fetal rats for their antitumor activity

open access: yesFEBS Open Bio, EarlyView.
This study aimed to prepare renal cells (RCs) from fetal rats which were digested by enzymes. Candidate peptides RCPs were characterized by capillary HPLC and MS and their bioactivity was predicted using peptideranker. The predicted top 10 bioactive peptides were synthesized.
Zhe Zhang   +6 more
wiley   +1 more source

Knot theory of R-covered Anosov flows: homotopy versus isotopy of closed orbits

open access: yes, 2012
In this article, we study the knots realized by periodic orbits of R-covered Anosov flows in compact 3-manifolds. We show that if two orbits are freely homotopic then in fact they are isotopic. We show that lifts of periodic orbits to the universal cover
Barthelmé, Thomas, Fenley, Sergio R.
core   +1 more source

Home - About - Disclaimer - Privacy