Results 231 to 240 of about 1,447,789 (299)
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Aquaculture, 2020
Sea cucumbers and sea urchins are promising candidates for aquaculture since they are high market value and low-trophic organisms. However, although they often co-exist in many marine habitats showing feeding interactions, there is currently a lack of ...
L. Grosso +5 more
semanticscholar +1 more source
Sea cucumbers and sea urchins are promising candidates for aquaculture since they are high market value and low-trophic organisms. However, although they often co-exist in many marine habitats showing feeding interactions, there is currently a lack of ...
L. Grosso +5 more
semanticscholar +1 more source
Journal of Materials Chemistry A, 2019
Sea-urchin-like bimetallic nickel–cobalt phosphide/phosphate was found to show superior charge storage performance as a battery material for hybrid supercapacitors.
semanticscholar +1 more source
Sea-urchin-like bimetallic nickel–cobalt phosphide/phosphate was found to show superior charge storage performance as a battery material for hybrid supercapacitors.
semanticscholar +1 more source
Journal of Materials Chemistry A, 2019
Nickel–iron sulfides with a sea urchin-like architecture are controllably synthesized and exhibit enhanced OER activities.
Cuijuan Xuan +7 more
semanticscholar +1 more source
Nickel–iron sulfides with a sea urchin-like architecture are controllably synthesized and exhibit enhanced OER activities.
Cuijuan Xuan +7 more
semanticscholar +1 more source
Design, Fabrication, and Characterization of an Untethered Amphibious Sea Urchin-Inspired Robot
IEEE Robotics and Automation Letters, 2019Sea urchins can easily navigate a wide range of challenging environments through the coordinated action of thousands of individually addressable rigid protective spines and flexible, reversibly adhesive tube feet.
Thibaut Paschal +5 more
semanticscholar +1 more source
Marine Environmental Research, 2019
Increasing seawater temperature affects growth, reproduction and development in marine organisms. In this study, we examined the effects of elevated temperatures on reproductive functions, heat shock protein 70 (HSP70) and nitrotyrosine protein (NTP, an ...
Jackson Johnstone +3 more
semanticscholar +1 more source
Increasing seawater temperature affects growth, reproduction and development in marine organisms. In this study, we examined the effects of elevated temperatures on reproductive functions, heat shock protein 70 (HSP70) and nitrotyrosine protein (NTP, an ...
Jackson Johnstone +3 more
semanticscholar +1 more source
Aquaculture, 2018
This study evaluated the growth of the purple sea urchin Paracentrotus lividus, fed with two diets, in sea- and land-based systems compared to wild populations.
E. Prato +11 more
semanticscholar +1 more source
This study evaluated the growth of the purple sea urchin Paracentrotus lividus, fed with two diets, in sea- and land-based systems compared to wild populations.
E. Prato +11 more
semanticscholar +1 more source
Biological Reviews, 1951
Summaryi. The head of the sea‐urchin spermatozoon is pear‐shaped and axially symmetrical. The sub‐microscopic morphology of the middle piece has not been investigated, but the tail, which terminates in an axial fibre, probably contains spiral or coiled structures, as in mammalian spermatozoa.2.
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Summaryi. The head of the sea‐urchin spermatozoon is pear‐shaped and axially symmetrical. The sub‐microscopic morphology of the middle piece has not been investigated, but the tail, which terminates in an axial fibre, probably contains spiral or coiled structures, as in mammalian spermatozoa.2.
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Clinical Toxicology, 2005
A 25-year-old female was walking along a shallow tropical reef when she felt a sharp pain in her right great toe. Upon exiting the water, she noted multiple dark spines protruding from the foot.
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A 25-year-old female was walking along a shallow tropical reef when she felt a sharp pain in her right great toe. Upon exiting the water, she noted multiple dark spines protruding from the foot.
openaire +2 more sources
2004
Publisher Summary The chapter describes the structures and functions of sea urchin spermatozoa. Methods for the isolation of different parts of the sea urchin sperm are discussed. Sea urchin sperm are specialized for five functions: (1) oxidative phosphorylation to produce ATP, (2) flagellar motility, (3) the acrosome reaction, (4) binding to the egg,
Victor D, Vacquier, Noritaka, Hirohashi
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Publisher Summary The chapter describes the structures and functions of sea urchin spermatozoa. Methods for the isolation of different parts of the sea urchin sperm are discussed. Sea urchin sperm are specialized for five functions: (1) oxidative phosphorylation to produce ATP, (2) flagellar motility, (3) the acrosome reaction, (4) binding to the egg,
Victor D, Vacquier, Noritaka, Hirohashi
openaire +2 more sources
Sea urchin DNA methyltransferases
Cell Biophysics, 1989DNA methyltransferase activities have been partially purified from unfertilized eggs and blastula nuclei of sea urchin embryos. Comparative studies, using different DNAs as substrates, show that the two preparations are most active on hemimethylated and single-strand DNA, but they methylate, though at a lower rate, also on double-strand DNA.
Tosi L +5 more
openaire +3 more sources