Results 31 to 40 of about 80,615 (281)

Molecular Characterization of the Gastrula in the Turtle Emys orbicularis: An Evolutionary Perspective on Gastrulation [PDF]

open access: yes, 2008
Due to the presence of a blastopore as in amphibians, the turtle has been suggested to exemplify a transition form from an amphibian- to an avian-type gastrulation pattern.
A Perea-Gomez   +53 more
core   +6 more sources

Walking dynamics are symmetric (enough) [PDF]

open access: yes, 2015
Many biological phenomena such as locomotion, circadian cycles, and breathing are rhythmic in nature and can be modeled as rhythmic dynamical systems. Dynamical systems modeling often involves neglecting certain characteristics of a physical system as a ...
Ankaralı, M. Mert   +5 more
core   +1 more source

Bilateral Symmetry in Morphogenesis of Embryos [PDF]

open access: yesProceedings of the National Academy of Sciences, 1970
It is suggested that differentiated embryonic cells have a high specificity of molecular constitution as regards the surface layers surrounding their cellular membranes. Correspondingly, specific interface energies may characterize the early contacts between different cell types.
openaire   +2 more sources

Corneal functional optical zone under monocular and binocular assessment [PDF]

open access: yes, 2018
Background: In this retrospective randomized case series, we compared bilateral symmetry between OD and OS eyes, intercorneal differences and Functional Optical Zone (FOZ) of the corneal aberrations.
de Ortueta, Diego   +2 more
core   +2 more sources

Bilateral symmetry breaking in a nonlinear Fabry-Perot cavity exhibiting optical tristability

open access: yes, 1999
We show the existence of a region in the parameter space that defines the field dynamics in a Fabry-Perot cylindrical cavity, where three output stable stationary states of the light are possible for a given localized incident field.
F. S. Felber   +22 more
core   +1 more source

Bilateral Assessment of Functional Tasks for Robot-assisted Therapy Applications [PDF]

open access: yes, 2011
This article presents a novel evaluation system along with methods to evaluate bilateral coordination of arm function on activities of daily living tasks before and after robot-assisted therapy. An affordable bilateral assessment system (BiAS) consisting
AC Lo   +40 more
core   +2 more sources

Shape and position of the node and notochord along the bilateral plane of symmetry are regulated by cell–extracellular matrix interactions

open access: yesBiology Open, 2014
The node and notochord (and their equivalents in other species) are essential signaling centers, positioned along the plane of bilateral symmetry in developing vertebrate embryos. However, genes and mechanisms regulating morphogenesis of these structures
Maria Pulina, Dong Liang, Sophie Astrof
doaj   +1 more source

Optimizing neuromuscular symmetry through load-progressive closed-chain upper limb training: An EMG-based approach

open access: yesJSAMS Plus
Background: Bilateral neuromuscular symmetry is a critical factor for safe and effective resistance training. Limited evidence exists on how progressive closed-chain resistance exercises influence upper-limb muscle activation and interlimb balance ...
Rafid Qaduri   +5 more
doaj   +1 more source

Bilateral Symmetry of Human Carotid Artery Atherosclerosis [PDF]

open access: yesStroke, 2002
Background and Purpose— Atherosclerosis is a principal cause of stroke and myocardial infarction. The carotid arteries provide a site at which progression of atherosclerosis can be monitored reproducibly and noninvasively.
Gareth J, Adams   +6 more
openaire   +2 more sources

Collective rationality and monotone path division rules [PDF]

open access: yes, 2014
We impose the axiom Independence of Irrelevant Alternatives on division rules for the conflicting claims problem. With the addition of Consistency and Resource Monotonicity, this characterizes a family of rules which can be described in three different ...
Stovall, John E.
core   +3 more sources

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