Results 51 to 60 of about 303,493 (269)
During gastrulation, the pluripotent epiblast self-organizes into the 3 germ layers—endoderm, mesoderm and ectoderm, which eventually form the entire embryo.
Sapna Chhabra+4 more
semanticscholar +1 more source
Topological nodal line semimetals with and without spin-orbital coupling [PDF]
lines in the Brillouin zone. We propose two different classes of symmetry protected nodal lines in the absence and in the presence of spin-orbital coupling (SOC), respectively.
C. Fang, Yige Chen, H. Kee, L. Fu
semanticscholar +1 more source
Evolution of nodal and nodal‐related genes and the putative composition of the heterodimers that trigger the nodal pathway in vertebrates [PDF]
AbstractNodal is a signaling molecule that belongs to the transforming growth factor‐β superfamily that plays key roles during the early stages of development of animals. In vertebrates Nodal forms an heterodimer with a GDF1/3 protein to activate the Nodal pathway.
Opazo, Juan C.+4 more
openaire +4 more sources
Early asymmetric cues triggering the dorsal/ventral gene regulatory network of the sea urchin embryo
Dorsal/ventral (DV) patterning of the sea urchin embryo relies on a ventrally-localized organizer expressing Nodal, a pivotal regulator of the DV gene regulatory network.
Vincenzo Cavalieri, Giovanni Spinelli
doaj +1 more source
The spatial and temporal dynamics of root water uptake in nodal and seminal roots are poorly understood, especially in relation to root system development and aging.
Hannah M. Schneider+6 more
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Eigenfunctions and nodal sets [PDF]
60 pages, 5 figures lifted from the web.
openaire +3 more sources
As an alternative to nodal domains in the usual sense, we propose a partition of the domain of a real-valued eigenfunction in by trajectories of the gradient, linking saddle points to extrema. Its most elementary properties are listed and exemplified.
Ross B. McDonald, Stephen A. Fulling
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Self-organization of a human organizer by combined WNT and NODAL signalling
In amniotes, the development of the primitive streak and its accompanying ‘organizer’ define the first stages of gastrulation. Although these structures have been characterized in detail in model organisms, the human primitive streak and organizer remain
I. Martyn+4 more
semanticscholar +1 more source
Observation of Topological Nodal Fermion Semimetal Phase in ZrSiS [PDF]
The search for new topological phases of matter is a major new direction in condensed matter physics. Recent experimental realizations of Dirac and Weyl semimetal phases pave the way to look for other exotic phases of matter in real materials.
M. Neupane+14 more
semanticscholar +1 more source
2019 ESC Guidelines for the management of patients with supraventricular tachycardia
The Task Force for the management of patients with supraventricular tachycardia of the European Society of Cardiology (ESC)Developed in collaboration with the Association for European Paediatric and Congenital Cardiology (AEPC)
article Editorial
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