Results 51 to 60 of about 303,493 (269)

Dissecting the dynamics of signaling events in the BMP, WNT, and NODAL cascade during self-organized fate patterning in human gastruloids

open access: yesPLoS Biology, 2019
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]

open access: yes, 2015
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]

open access: yesEvolution & Development, 2018
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

open access: yeseLife, 2014
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

Spatio-Temporal Variation in Water Uptake in Seminal and Nodal Root Systems of Barley Plants Grown in Soil

open access: yesFrontiers in Plant Science, 2020
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
doaj   +1 more source

Eigenfunctions and nodal sets [PDF]

open access: yesSurveys in Differential Geometry, 2013
60 pages, 5 figures lifted from the web.
openaire   +3 more sources

Neumann nodal domains [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
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
openaire   +3 more sources

Self-organization of a human organizer by combined WNT and NODAL signalling

open access: yesNature, 2018
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]

open access: yes, 2016
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

open access: yesРоссийский кардиологический журнал, 2020
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
doaj   +1 more source

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