Results 281 to 290 of about 170,965 (333)

Epithelial cell shape changes contribute to regulation of ureteric bud branching morphogenesis

The FEBS Journal, EarlyView.
Ureteric bud (UB) branching determines the final size, shape, and nephron number of kidneys. Characterization of UB cell shapes identified dynamic round‐to‐elliptical transitions and cellular volume changes as critical epithelial modifications that increase morphological complexity in UB tips during their transitions through ampulla‐to‐asymmetric ...
Kristen Kurtzeborn, Vladislav Iaroshenko, Tomáš Zárybnický, Julia Koivula, Heidi Anttonen, Otto J. M. Mäkelä, Darren Bridgewater, Ramaswamy Krishnan, Ping Chen, Satu Kuure   +9 more
wiley   +1 more source

Lung organoids as a human system for Mycobacteria infection modeling and drug testing

The FEBS Journal, EarlyView.
Mycobacterial infections, including tuberculosis (TB) and infections by nontuberculous mycobacteria (NTM), are still public health issues. In 2023, TB caused 1.25 million deaths, while NTM remain a clinical challenge for patients with cystic fibrosis (CF).
Stephen Adonai Leon‐Icaza, Romain Vergé, Raoul Mazars, Laurence Berry, Céline Cougoule   +4 more
wiley   +1 more source

How spatiotemporal dynamics can enhance ecosystem resilience. [PDF]

Proc Natl Acad Sci U S A
Moreno-Spiegelberg P, Rietkerk M, Gomila D.   +2 more
europepmc   +1 more source

Intracellularly Coupled Oscillators for Synthetic Biology

Holló G, Park JH, Evard R, Schaerli Y.
europepmc   +1 more source

A geometrical model of cell fate specification in the mouse blastocyst.

Development
Raju A, Siggia ED.
europepmc   +1 more source

Bifurcations of heteroclinic loop accompanied by pitchfork bifurcation [PDF]

Nonlinear Dynamics, 2012
In this paper, using the local coordinate moving frame approach, we investigate bifurcations of generic heteroclinic loop with a hyperbolic equilibrium and a nonhyperbolic equilibrium which undergoes a pitchfork bifurcation. Under some generic hypotheses, the existence of homoclinic loop, heteroclinic loop, periodic orbit and three or four heteroclinic
Fengjie Geng, Yancong Xu
semanticscholar   +2 more sources

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Spectral signature of the pitchfork bifurcation: Liouville equation approach.

Physical Review E, 1995
The time evolution of probability densities of one-dimensional nonlinear vector fields is studied using a Liouville equation approach. It is shown that the Liouville operator admits a discrete spectrum of eigenvalues of decaying type if the vector field is far from bifurcation.
P. Gaspard, G. Nicolis, A. Provata, S. Tasaki   +3 more
semanticscholar   +4 more sources

Supercritical Pitchfork Bifurcation in Implicit Regression Modeling

International Journal of Artificial Life Research, 2010
Chaotic systems have been widely studied for description and explanation of various observed phenomena. The problem of statistical modeling for messy data can be attempted using the so called Supercritical Pitchfork Bifurcation (SPB) approach. This work considers the possibility of applying SPB technique to regression modeling of the implicit functions.
S. Lipovetsky
semanticscholar   +3 more sources

Pitchfork bifurcation for non-autonomous interval maps

Journal of Difference Equations and Applications, 2009
In this work, we investigate attracting periodic orbits for non-autonomous discrete dynamical systems with two maps using a new approach. We study some types of bifurcation in these systems. We show that the pitchfork bifurcation plays an important role in the creation of attracting orbits in families of alternating systems with negative Schwarzian ...
E. D’Aniello, H. Oliveira
semanticscholar   +4 more sources