Results 21 to 30 of about 636,721 (274)
Studies into the Failure Prediction of Brittle Materials [PDF]
, 1987 This thesis is divided into six chapters. The first chapter provides a brief introduction concerning the behaviour of brittle materials. It also contains the justification for the undertaking of the study as well as a brief description of the method ...
Nguyen, P. D.
core +7 more sources
Development of two new sets of PCR primers for eDNA metabarcoding of brittle stars (Echinodermata, Ophiuroidea) [PDF]
Metabarcoding and Metagenomics, 2023 Brittle stars (class Ophiuroidea) are marine invertebrates comprising approximately 2,100 extant species, and are considered to constitute the most diverse taxon of the phylum Echinodermata.
Masanori Okanishi +7 more
doaj +3 more sources
Run and hide: visual performance in a brittle star. [PDF]
J Exp Biol, 2021 ABSTRACT Spatial vision was recently reported in a brittle star, Ophiomastix wendtii, which lacks discrete eyes, but little is known about its visual ecology. Our aim was to better characterize the vision and visual ecology of this unusual visual system.
Sumner-Rooney L +3 more
europepmc +3 more sources
A methodological exploration to study 2D arm kinematics in Ophiuroidea (Echinodermata)
Frontiers in Zoology, 2023 Brittle stars, unlike most other echinoderms, do not use their small tube feet for locomotion but instead use their flexible arms to produce a rowing or reverse rowing movement.
Mona Goharimanesh +4 more
doaj +1 more source
Skeletal regeneration in the brittle star Amphiura filiformis. [PDF]
Front Zool, 2016 Brittle stars regenerate their whole arms post-amputation. Amphiura filiformis can now be used for molecular characterization of arm regeneration due to the availability of transcriptomic data. Previous work showed that specific developmental transcription factors known to take part in echinoderm skeletogenesis are expressed during adult arm ...
Czarkwiani A +4 more
europepmc +5 more sources
Mitochondrial DNA. Part B. Resources, 2022 We describe the first mitochondrial genome of a brittle star Asteroschema tubiferum Matsumoto 1911 in family Asteroschematidae. The mitogenome was sequenced and assembled using next-generation sequencing technology, and were 16,361 bp in size with 37 ...
Zhaoshan Zhong +3 more
doaj +1 more source
Evaluating the secondary bioactive metabolites in Geodia corticostylifera
Brazilian Journal of Biology, 2022 Ophiactis savignyi could be discovered all over the world in tropical marine environments. People could have aided in the spread of O. savignyi, particularly in the western and eastern populations of Panama's Isthmus. The brittle star Ophiactis savignyi,
W. K. Abdelbasset +8 more
doaj +1 more source
Electrotaxis of the brittle star
Zeitschrift für Naturforschung C, 1974 Abstract Brittle stars exhibit a very remarkable taxis in electric field.
B, Rakshit, R L, Brahmachary
openaire +2 more sources
Plastic sex for a brittle star [PDF]
Current Biology, 2003 The different potential fitness outcomes between reproduction by cloning or by sex have puzzled researchers for years. But whatever the reason for the two quite different strategies, most species have evolved to use one or the other, or a fixed pattern of both.But new work on a brittle star, a marine invertebrate, suggests that at least this one ...
openaire +2 more sources
Frontiers in Marine Science, 2021 Cold-water coral reefs and sponge grounds are deep-sea biological hotspots, equivalent to shallow-water tropical coral reefs. In tropical ecosystems, biodiversity and productivity are maintained through efficient recycling pathways, such as the sponge ...
Martijn C. Bart +5 more
doaj +1 more source