Results 61 to 70 of about 79,773 (196)

Supernova remnant S147 and its associated neutron star(s)

open access: yes, 2005
The supernova remnant S147 harbors the pulsar PSR J0538+2817 whose characteristic age is more than an order of magnitude greater than the kinematic age of the system (inferred from the angular offset of the pulsar from the geometric center of the ...
Anderson   +48 more
core   +1 more source

Disentangling effects of flower symmetry and orientation on pollination

open access: yesJournal of Pollination Ecology
Some Saxifraga species possess an intraindividual variation of flower symmetry and orientation: flowers with horizontally oriented corolla planes are radially symmetrical, whereas flowers with vertically oriented corolla planes are bilaterally ...
Manuel Wiegel, Klaus Lunau
doaj   +1 more source

Demystification of animal symmetry: symmetry is a response to mechanical forces

open access: yesBiology Direct, 2017
ᅟ Symmetry is an eye-catching feature of animal body plans, yet its causes are not well enough understood. The evolution of animal form is mainly due to changes in gene regulatory networks (GRNs). Based on theoretical considerations regarding fundamental
Gábor Holló
doaj   +1 more source

The dynamic right-to-left translocation of Cerl2 is involved in the regulation and termination of nodal activity in the mouse node [PDF]

open access: yes, 2013
The determination of left-right body asymmetry in mouse embryos depends on the interplay of molecules In a highly sensitive structure, the node. Here, we show that the localization of Cerl2 protein does not correlate to its mRNA expression pattern, from ...
Belo, Jose Antonio   +6 more
core   +3 more sources

Characteristics of bilateral symmetry detection

open access: yesPsichologija, 2001
Although the symmetry is detected very fast and without efforts, it is not known how this process is going on and what mechanisms make the detection of symmetry possible. This paper reviews the characteristics of the detection of various symmetry types giving the majority of attention to bilateral symmetry.
Alvydas Šoliūnas, Ona Gurčinienė
openaire   +2 more sources

Morphological and Functional Asymmetry Among Competitive Female Fencing Athletes

open access: yesApplied Sciences
Maintaining body symmetry in sports characterized by high lateralization is crucial for optimizing long-term athletic performance and mitigating injury risk.
Wiktoria Bany   +2 more
doaj   +1 more source

Higher-Order Wavefront Aberrations for Populations of Young Emmetropes and Myopes

open access: yesJournal of Optometry, 2009
Purpose: To test the hypothesis that human eyes have a central tendency to be free of higher-order aberrations by analyzing wavefront aberrations for two young populations of respectively emmetropic and myopic subjects.
Jinhua Bao   +5 more
doaj   +1 more source

The genetic factors of bilaterian evolution

open access: yeseLife, 2020
The Cambrian explosion was a unique animal radiation ~540 million years ago that produced the full range of body plans across bilaterians. The genetic mechanisms underlying these events are unknown, leaving a fundamental question in evolutionary biology ...
Peter Heger   +4 more
doaj   +1 more source

Stimulus information supporting bilateral symmetry perception

open access: yesVision Research, 2019
A classification image (a psychophysical reverse-correlation) method was used to investigate what stimulus regions and information the visual system uses for bilateral symmetry perception. The stimuli were symmetric random-dot patterns with either low or high dot density.
openaire   +3 more sources

Investigation of pelvic symmetry: A systematic analysis using computer aided design software

open access: yesHealth Care Science, 2023
Objectives This study aimed to investigate the symmetry of the Chinese pelvis. Methods Computed tomography scan images of each of 50 Chinese pelvises were converted to 3D models and the left sides of the pelvises were reflected on Mimics software.
Qiubao Zheng   +9 more
doaj   +1 more source

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