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Detection and isolation of proctolin-like immunoreactivity in arachnids: Possible cardioregulatory role for proctolin in the orb-weaving spiders Argiope and Araneus
Abstract Proctolin-like immunoreactivity was detected in the prosoma of four species of araneid spiders. Proctolin levels as determined by radioimmunoassay ranged from 3.2 ± 0.6 ng proctolin perExpand
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Compounds in the droplets of the orb spider's viscid spiral
THE orb web of the garden spider Araneus diadematus, like those of other ecribellate orb spiders, relies on the remarkable extensibility of its sticky capture spiral to intercept and entrap prey1,2.Expand
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Sleep disturbance in pain clinic patients
&NA; One hundred out‐patients, referred to a multidisciplinary pain clinic for the management of chronic pain, were questioned regarding their sleeping habits and were grouped according to whetherExpand
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Moult-related changes in ampullate silk gland morphology and usage in the araneid spider Araneus cavaticus.
Major ampullate (MaA) and minor ampullate (MiA) silk glands of juvenile Araneus cavaticus (third to penultimate instars) were examined by dissection at various times relative to ecdysis. Several daysExpand
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Selected aspects of spinning apparatus development in Araneus cavaticus (Araneae, Araneidae)
In the first half of this century, several workers observed small, seemingly glandular structures attached to the ampullate glands of spiders. Hence, they were termed accessory ampullate glands. InExpand
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Identification of proctolin in the central nervous system of the horseshoe crab, Limulus polyphemus
A proctolin-like peptide was isolated from the prosomal CNS of the chelicerate arthropod, Limulus, and purified using size exclusion, ion exchange and high performance liquid chromatography.Expand
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Excitatory actions of FMRFamide-related peptides (FaRPs) on the neurogenic Limulus heart.
The actions of FMRFamide-related peptides (FaRPs) on the neurogenic heart of the horseshoe crab, Limulus polyphemus, were investigated. Excitatory chronotropic effects were produced by application ofExpand
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Silk use during proecdysis in the spider Araneus cavaticus (Araneae: Araneidae)
Major ampullate (MaA) and minor ampullate (MiA) silk glands of juvenile Araneus cavaticus were examined by dissection at various times relative to ecdysis. Several days before ecdysis the single,Expand
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