Results 171 to 180 of about 163,781 (311)

Evidence of introgression amid phylogenetic conflict in Brachyotum, a plant radiation from the Tropical Andes

American Journal of Botany, EarlyView.
Abstract Premise The species‐rich flora of Tropical Andes underwent multiple rapid and recent diversifications, yet resolving their evolutionary histories remains challenging despite increasing phylogenomic data. Here, we examined phylogenomic conflict in Brachyotum (Melastomataceae) to identify sources preventing its resolution.
Diego Paredes‐Burneo, Ana M. Bedoya, Fabián A. Michelangeli, Lucas C. Majure, Carmen Ulloa Ulloa, Laura P. Lagomarsino   +5 more
wiley   +1 more source

Endovascular Treatment of a Bihemispheric Distal Anterior Cerebral Artery A4 Broad-Necked Bifurcation Aneurysm Using the Woven EndoBridge Device: A Case Report. [PDF]

J Neuroendovasc Ther
Kishi R, Oshikata S, Fujiwara M, Komatani H, Nakahara I.   +4 more
europepmc   +1 more source

Bistability and boundary crisis in a semiconductor laser with phase-conjugate feedback

, 2002
We present a detailed study of a route to chaos via quasiperiodicity on a torus in a semiconductor laser with phase-conjugate feedback. Highlighting the use of new tools that go far beyond mere simulation, we compute bifurcation diagrams and unstable ...
Green, K, Engelborghs, Koen, Krauskopf, B   +2 more
core  

Planned first-line bilateral femoral access for endovascular treatment of unilateral common iliac artery chronic total occlusion: procedural control and outcomes. [PDF]

Arch Med Sci Atheroscler Dis
Khalil E.
europepmc   +1 more source

Morphological Analysis of the M1 Segment of the Middle Cerebral Artery and Its Implications for Neurosurgical Approaches: A Cadaveric Study. [PDF]

Cureus
Singh HJ, Aggarwal A, Singal A, Das SS, Gupta K, Sahni D.   +5 more
europepmc   +1 more source

Homoclinic snaking in a neutral delay model of a transmission line oscillator

, 2006
In a transmission line oscillator (TLO) a linear wave travels along a piece of cable, the transmission line, and interacts with terminating electrical components.
Wilson, RE, Barton, DAW, Krauskopf, B
core  

Reply: Revisiting the Technical Steps of the Double-Kissing Crush Technique in a Complicated Case of Left Main Bifurcation. [PDF]

JACC Case Rep
Hordern MD, Fairley SL, Harding SA.
europepmc   +1 more source

Bautin bifurcation

Scholarpedia, 2007
John Guckenheimer, Yuri A. Kuznetsov
openaire   +1 more source

Subcritical Hopf bifurcations in a car-following model with reaction-time delay

, 2005
A nonlinear car-following model of highway traffic is considered, which includes the reaction-time delay of drivers. Linear stability analysis shows that the uniform flow equilibrium of the system loses its stability via Hopf bifurcations and thus ...
Orosz, G, Stepan, G
core  

Ancient hybridization and phylogenetic discordance: Exploring evolutionary complexity in Asteraceae

Applications in Plant Sciences, EarlyView.
Abstract Premise Conflicting phylogenetic signals are common in plant phylogenomics and often reflect evolutionary histories shaped by processes like hybridization, incomplete lineage sorting, and whole‐genome duplication (WGD). We aimed to identify and assess these complex processes in the hyper‐diverse family Asteraceae to offer insight into the ...
Paige A. Ellestad, Erika R. Moore‐Pollard, Carolina M. Siniscalchi, Ramhari Thapa, Linda E. Watson, J. Mauricio Bonifacino, Jennifer R. Mandel   +6 more
wiley   +1 more source