Results 121 to 130 of about 39,586 (243)
Marine Drugs, 2015 Three new sulfated steroid monoglycosides, leptaochotensosides A–C (1–3), and a new sulfated polyhydroxylated steroid (4) were isolated from the alcoholic extract of the Far Eastern starfish Leptasterias ochotensis.
Timofey V. Malyarenko +5 more
doaj +1 more source
Uma nova associação entre um caprelídeo e estrelas-do-mar: Caprella acanthifera s.l. (Crustacea: Amphipoda) em Ophidiaster ophidianus e Hacelia attenuata nos Açore [PDF]
, 1996 Uma nova associação entre um caprelídeo e estrelas-do-mar é descrita para os Açores, Atlântico nordeste. Caprella n.sp. , uma espécie do complexo Caprella acanthifera conhecida por viver sem hospedeiros no mar Mediterrâneo e no Atlântico oriental, foi ...
Vader, Wim, Wirtz, Peter
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Indian Journal of Ophthalmology, 2020 Surbhi Khurana, Parul C Gupta, Jagat Ram
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Cells, 2020 Oocyte maturation is a process that occurs in the ovaries, where an immature oocyte resumes meiosis to attain competence for normal fertilization after ovulation/spawning. In starfish, the hormone 1-methyladenine binds to an unidentified receptor on the plasma membrane of oocytes, inducing a conformational change in the heterotrimeric GTP-binding ...
openaire +3 more sources
Stirling engine: Available tools for long-life assessment [PDF]
A review is presented for the durability approaches applicable to long-time life assessment of Stirling engine hot-section components. The crucial elements are experimental techniques for generating long-time materials property data (both monotonic and ...
Bartolotta, Paul A., Halford, Gary R.
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Marine DrugsTwo new steroid 3β,21-disulfates (1, 2) and two new steroid 3β,22- and 3α,22-disulfates (3, 4), along with the previously known monoamine alkaloid tryptamine (5) were found in the ethanolic extract of the Far Eastern slime sea star Pteraster marsippus ...
Alla A. Kicha +7 more
doaj +1 more source
Do predators always win? Starfish versus limpets. A hands-on activity examining predator-prey interaction [PDF]
, 2011 In this article we propose a hands-on experimental activity about predator–prey interactions that can be performed both in a research laboratory and in the classroom.
Boaventura, Diana +3 more
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eLifeThanks to recent promising advances in AI, automated segmentation of imaging datasets has made significant strides. However, the evaluation and curation of 3D and 3D+t datasets remain extremely challenging and highly resource-intensive.
Benjamin Gallean +6 more
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Marine DrugsFour new glycosides of polyhydroxysteroids, ceramasterosides A, B, D, and E (1–4), and two previously known compounds, ceramasteroside C1 (5) and attenuatoside B-I (6), were isolated from an extract of a deep-sea sea star species, the orange cookie star ...
Timofey V. Malyarenko +8 more
doaj +1 more source
Random effects compound Poisson model to represent data with extra zeros
, 2009 This paper describes a compound Poisson-based random effects structure for modeling zero-inflated data. Data with large proportion of zeros are found in many fields of applied statistics, for example in ecology when trying to model and predict species ...
Etienne, Marie-Pierre +3 more
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