Results 111 to 120 of about 572,560 (281)

Heteroclinic Orbits for a Discrete Pendulum Equation [PDF]

open access: yes, 2010
About twenty years ago, Rabinowitz showed firstly that there exist heteroclinic orbits of autonomous Hamiltonian system joining two equilibria. A special case of autonomous Hamiltonian system is the classical pendulum equation.
Xiao, Huafeng, Yu, Jianshe
core  

E-Orbit Functions

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2008
We review and further develop the theory of $E$-orbit functions. They are functions on the Euclidean space $E_n$ obtained from the multivariate exponential function by symmetrization by means of an even part $W_{e}$ of a Weyl group $W$, corresponding to ...
Jiri Patera, Anatoliy U. Klimyk
doaj   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS 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

On the Action of a Subgroup of the Modular Group on Imaginary Quadratic Number Fields

open access: yesAxioms
Consider the modular group PSL(2,Z)=⟨x,y|x2=y3=1⟩ generated by the transformations x:z↦−1/z and y:z↦(z−1)/z. Let H be the proper subgroup ⟨y,v|y3=v3=1⟩ of PSL(2,Z), where v=xyx.
Abdulaziz Deajim
doaj   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

A large-deformation mechanical-thermal-chemical coupling model for thermal barrier coatings incorporating strain gradient effects

open access: yesForces in Mechanics
The growth of the thermally grown oxide (TGO), formed during the oxidation of thermal barrier coatings (TBCs) in advanced gas turbine engines, exhibits a pronounced size effect as the thickness approaches its grain size.
Xuefei Ma   +3 more
doaj   +1 more source

Capillary orbits

open access: yesNature Communications, 2019
It is known that liquid drops can be levitated by continuous vapour flow above a liquid surface. Here the authors combine the ultra-low friction provided by the bath with the interaction force between two drops due to interface deformations to study the ...
Anaïs Gauthier   +3 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

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