Zebrafish pigment cells develop directly from persistent highly multipotent progenitors

Autor: Tatiana Subkhankulova, Karen Camargo Sosa, Leonid A. Uroshlev, Masataka Nikaido, Noah Shriever, Artem S. Kasianov, Xueyan Yang, Frederico S. L. M. Rodrigues, Thomas J. Carney, Gemma Bavister, Hartmut Schwetlick, Jonathan H. P. Dawes, Andrea Rocco, Vsevolod J. Makeev, Robert N. Kelsh

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-19 (2023)

Neural crest cells are highly multipotent stem cells, but it remains unclear how their fate restriction to specific fates occurs. Here, the authors show in zebrafish that broad multipotency is retained even after migration, suggesting that fate restr

Externí odkaz: https://doaj.org/article/160bd44df47e4c13899e32cf8a80ef54

Effective Hamiltonian dynamics via the Maupertuis principle

Autor: Johannes Zimmer, Hartmut Schwetlick, Daniel C. Sutton

Publikováno v: Discrete & Continuous Dynamical Systems - S. 13:1395-1410

We consider the dynamics of a Hamiltonian particle forced by a rapidly oscillating potential in \begin{document}$ m $\end{document} -dimensional space. As alternative to the established approach of averaging Hamiltonian dynamics by reformulating the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d55d53ecc36d4779dade5c6d0fb0192d
https://doi.org/10.3934/dcdss.2020078

Travelling waves for a Frenkel–Kontorova chain

Autor: Johannes Zimmer, Boris Buffoni, Hartmut Schwetlick

Publikováno v: Buffoni, B, Zimmer, J & Schwetlick, H 2017, ' Travelling waves for a Frenkel-Kontorova chain ', Journal of Differential Equations, vol. 263, no. 4, pp. 2317-2342 . https://doi.org/10.1016/j.jde.2017.03.046

In this article, the Frenkel–Kontorova model for dislocation dynamics is considered, where the on-site potential consists of quadratic wells joined by small arcs, which can be spinodal (concave) as commonly assumed in physics. The existence of hete

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34a41a76f028275018131b46fd34ed82
https://doi.org/10.1016/j.jde.2017.03.046

The Second-Order L 2-Flow of Inextensible Elastic Curves with Hinged Ends in the Plane

Autor: Hartmut Schwetlick, Chun Chi Lin, Yang Kai Lue

Publikováno v: Journal of Elasticity. 119:263-291

In this article, we study the evolution of open inextensible planar curves with hinged ends. We obtain long time existence of \(C^{\infty}\)-smooth solutions during the evolution, given the initial curves that are only \(C^{2}\)-smooth with vanishing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1946db6fbdc058433a0dff9686b74f14
https://doi.org/10.1007/s10659-015-9518-5

A Convergent String Method: Existence and Approximation for the Hamiltonian Boundary-Value Problem

Autor: Hartmut Schwetlick, Johannes Zimmer

Publikováno v: Zimmer, J & Schwetlick, H 2016, A convergent string method: Existence and approximation for the Hamiltonian boundary-value problem . in T Hagen, F Rapp & J Scheurle (eds), Dynamical Systems, Number Theory and Applications : A Festschrift in Honor of Armin Leutbecher's 80th Birthday . World Sci. Publ., Hackensack, NJ, pp. 221-254 .

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0e330b9c83f195e48874339c9f2e932
https://doi.org/10.1142/9789814699877_0012