Results 221 to 230 of about 2,434 (235)

A worm-like trace of cathode spots on Cu–Zr–Ti amorphous ribbons

Journal of Physics D: Applied Physics, 2003
On Cu-Zr-Ti amorphous ribbons, a lot of worm-like traces or quasi-continuous traces of cathode spots have been clearly observed using a scanning electron microscope (SEM). This kind of trace is eroded by the motion of a single spot step by step, and could not be observed on cathodes made of crystalline materials. Spot motion direction can be identified
Chengyu Zhang, Zhimao Yang, Yaping Wang, Bingjun Ding   +3 more
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The biology and systematics of a new species of ribbon worm, genus Tubulanus (phylum Nemertea)

2023
Most nemerteans are studied from poorly preserved museum specimens. Much of the existing data on this group of worms is incomplete at best. Only through thorough species descriptions from live animals and properly preserved specimens will we be able to reconstruct the life history relationships of this cryptic group of worms. Since nemerteans generally
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Ribbons under the rocks: intertidal ribbon-worm fauna (phylum Nemertea) from selected islands in central and southern Philippines

Philippine Journal of Systematic Biology
A total of 16 intertidal zones on three Philippine islands, namely Panay, Camiguin, and Mindanao, were surveyed for ribbon-worm fauna in March–April 2023. Based on the external morphology, with additional support from partial sequences of the cytochrome c oxidase subunit I gene of the collected specimens, the survey revealed four species in ...
Jamael Abato, Millanie Abatay, Merimee Dahilog-Caralde, Warren Caneos, Nonillon Aspe, Archie Along, Laurence Calagui, Meljan Demetillo, Julius Anthony Leones, Saturnino Luke Sobrevega, Hiroshi Kajihara   +10 more
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Tetrodotoxin in diet items of highly toxic ribbon worm Cephalothrix cf. simula (Palaeonemertea, Nemertea)

Toxicon
We, for the first time, have carried out a search for tetrodotoxin and its analogues (TTXs) in extracts of various animals being potential diet items for highly toxic nemerteans Cephalothrix cf. simula using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS).
Peter V Velansky, Timur Yu Magarlamov, V G Kuznetsov   +2 more
exaly   +3 more sources

Spermatozoa and Spermatogenesis in the Ribbon Worm Asteronemertes gibsoni (Hoplonemertea, Oerstediidae), a Symbiont of Sea Stars

Journal of Morphology
ABSTRACTIn the phylum Nemertea, the class Hoplonemertea (former Enopla) comprises the largest number of studied species with complex spermatozoa. Asteronemertes gibsoni Chernyshev, 1991, a nemertean species having a symbiotic relationship with sea stars, is characterized by complex filiform spermatozoa.
Olga V. Yurchenko, Alexey V. Chernyshev
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Tetrodotoxins Secretion and Voltage-Gated Sodium Channel Adaptation in the Ribbon Worm Kulikovia alborostrata (Takakura, 1898) (Nemertea)

Toxins, 2021
Anna E Vlasenko, Peter V Velansky, Konstantin V Yakovlev   +2 more
exaly  

Flatworms and Ribbon Worms

2017
Peter J. Hayward, John S. Ryland
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Intrabody Tetrodotoxin Distribution and Possible Hypothesis for Its Migration in Ribbon Worms Cephalothrix cf. simula (Palaeonemertea, Nemertea)

Marine Drugs, 2021
Alexei V Chernyshev, Timur Yu Magarlamov, Magarlamov Timur Yu   +2 more
exaly  

Microscopic anatomy of the integument in the ribbon worm Micrura bella (Stimpson, 1857) (Pilidiophora, Nemertea)

Journal of Morphology, 2023
Alexei V Chernyshev, Timur Yu Magarlamov
exaly  

Peptide toxins from ribbon worms (Nemertea)

Phytochemistry Letters
Erik Jacobsson, Quentine Laborde, Håkan S. Andersson, Ulf Göransson   +3 more
openaire   +1 more source