Results 11 to 20 of about 88,911 (120)

A Method for Quantifying, Visualising, and Analysing Gastropod Shell Form. [PDF]

open access: yesPLoS ONE, 2016
Quantitative analysis of organismal form is an important component for almost every branch of biology. Although generally considered an easily-measurable structure, the quantification of gastropod shell form is still a challenge because many shells lack ...
Thor-Seng Liew, Menno Schilthuizen
doaj   +2 more sources

Proteomic analysis of trochophore and veliger larvae development in the small abalone Haliotis diversicolor [PDF]

open access: yesBMC Genomics, 2017
Background Haliotis diversicolor is commercially important species. The trochophore and veliger are distinct larval stages in gastropod development. Their development involves complex morphological and physiological changes.
Guilan Di   +8 more
doaj   +2 more sources

Evidence that gastropod torsion is driven by asymmetric cell proliferation activated by TGF-beta signalling. [PDF]

open access: yesBiol Lett, 2011
Gastropods are characterized by their asymmetric bodyplan, which develops through a unique ontogenetic process called ‘torsion’. Despite several intensive studies, the driving force of torsion remains to be determined. Although torsion was traditionally believed to be driven by contraction of the retractor muscle connecting the foot and ...
Kurita Y, Wada H.
europepmc   +4 more sources

COMMENTS ON “THE ADAPTIVE SIGNIFICANCE OF GASTROPOD TORSION” [PDF]

open access: yesEvolution; International Journal of Organic Evolution, 1967
Roger L, Batten   +2 more
exaly   +3 more sources

Conkazal-M1 from the MKAVA family of conotoxins: A dual-function protease inhibitor and neuroactive peptide. [PDF]

open access: yesProtein Sci
Abstract Marine cone snails produce a diverse array of bioactive peptides, known as conotoxins, in their venom. Given their high target potency and specificity, conotoxins are attractive compounds for the development of precision research tools and pharmacological agents.
Hackney CM   +12 more
europepmc   +2 more sources

The stress distribution in the joints of vehicles chassis frames subject to torsion [PDF]

open access: yes, 1978
The problem of warping inhibition in the joints, of commercial vehicle chassis frames is very important for the estimation. of stress distribution in the joints and the overall torsional stiffness of frames.
Alvi, M. S. I.
core   +7 more sources

A congruent topology for deep gastropod relationships [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2019
Gonzalo Giribet, Tauana Junqueira Cunha
exaly   +2 more sources

Growth and morphogenesis of the gastropod shell [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
J David Lambert, Nina S Fogel
exaly   +2 more sources

The nonlinear bending-torsion theory for curved rods as Gamma-limit of three-dimensional elasticity [PDF]

open access: yes, 2006
The problem of the rigorous derivation of one-dimensional models for nonlinearly elastic curved beams is studied in a variational setting. Considering different scalings of the three-dimensional energy and passing to the limit as the diameter of the beam
Scardia, L.
core   +8 more sources

GASTROPOD TORSION: A TEST OF GARSTANG'S HYPOTHESIS

open access: yesThe Biological Bulletin, 1985
Torsion occurs in gastropod molluscs as a 180° twisting of the shell and viscera relative to the head and foot of the veliger larva. Garstang (1928, 1929) proposed, and it has since become widely accepted, that torsion functions as a larval defense by allowing veligers to first pull the head into the shell, then sealing the aperture with the foot and ...
Pennington, J Timothy, Chia, Fu-Shiang
openaire   +4 more sources

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