Results 131 to 140 of about 1,447,789 (299)

Characterization of a monoclonal antibody that induces the acrosome reaction of sea urchin sperm. [PDF]

, 1987
A monoclonal antibody, J18/29, induces the acrosome reaction (AR) in spermatozoa of the sea urchin Strongylocentrotus purpuratus. J18/29 induces increases in both intracellular Ca2+ and intracellular pH similar to those occurring upon induction of the AR
Ebina, Y, Meinhof, CG, Schackmann, RW, Trimmer, JS, Vacquier, VD   +4 more
core  

Filter feeders living on suspension feeders: New insights into the lifestyle and distribution of Arcturidae Dana, 1849 (Crustacea: Isopoda) around Iceland

Marine Ecology, EarlyView.
Abstract The focus of the present study was on arcturid isopods occurring in the subarctic region around Iceland. Data from two decades of sampling with an epibenthic sledge (EBS) during numerous expeditions of the BIOICE (Benthic Invertebrates of Icelandic Waters; 1992–2004) and IceAGE (Icelandic marine Animals: Genetics and Ecology; 2011—ongoing ...
Vivien Lukas Hartmann, Emanuel Pereira, Nancy F. Mercado‐Salas, Anne‐Nina Lörz, Jörundur Svavarsson, Saskia Brix   +5 more
wiley   +1 more source

Thermal and hydrodynamic environments mediate individual and aggregative feeding of a functionally important omnivore in reef communities.

PLoS ONE, 2015
In eastern Canada, the destruction of kelp beds by dense aggregations (fronts) of the omnivorous green sea urchin, Strongylocentrotus droebachiensis, is a key determinant of the structure and dynamics of shallow reef communities.
Desta L Frey, Patrick Gagnon
doaj   +1 more source

Cis-regulatory control of the SM50 gene, an early marker of skeletogenic lineage specification in the sea urchin embryo [PDF]

, 1995
The SM50 gene encodes a minor matrix protein of the sea urchin embryo spicule. We carried out a detailed functional analysis of a cis-regulatory region of this gene, extending 440 bp upstream and 120 bp downstream of the transcription start site, that ...
Britten, Roy J., Davidson, Eric H., Kirchhamer, Carmen V., Makabe, Kazuhiro W.   +3 more
core  

Middlebrow Aesthetics: An Explanation and Defense

Pacific Philosophical Quarterly, EarlyView.
ABSTRACT We offer a philosophical account of the middlebrow as a theoretical category to do explanatory and critical work in aesthetics. On our account, the middlebrow ought to be understood as aspirational popular art. That is, it is art which aspires both to be popular (in a distinctive sense), and at the same time to be something more than popular ...
Aaron Meskin, Jonathan M. Weinberg
wiley   +1 more source

SpZ12-1, a negative regulator required for spatial control of the territory-specific CyIIIa gene in the sea urchin embryo [PDF]

, 1995
The CyIIIa cytoskeletal actin gene of the sea urchin Strongylocentrotus purpuratus is activated in late cleavage and expressed exclusively in the aboral ectoderm territory of the embryo.
Britten, Roy J., Davidson, Eric H., Kirchhamer, Carmen V., Wang, David G.-W.   +3 more
core  

Conditioning cultured Diadema antillarum through uncaged mid‐water grow‐out shifts behavior and morphology

Restoration Ecology, EarlyView.
Abstract Introduction The long‐spined black sea urchin Diadema antillarum is a keystone herbivore on Caribbean reefs, yet population recovery following mass mortality events has been slow and spatially variable. Restocking programs increasingly rely on aquaculture, but rearing conditions may generate behavioral and morphological shifts that affect post‐
Oliver J. Klokman, Puck Heerink, Albertinka J. Murk, Alwin Hylkema   +3 more
wiley   +1 more source

Negative spatial regulation of the lineage specific CyIIIa actin gene in the sea urchin embryo [PDF]

, 1990
The CyIIIa·CAT fusion gene was injected into Strongylocentrotus purpuratus eggs, together with excess ligated competitor sequences representing subregions of the CyIIIa regulatory domain.
Britten, Roy J., Davidson, Eric H., Franks, Roberta R., Hough-Evans, Barbara R., Zeller, Robert W.   +4 more
core  

Experimental Investigations on the Energy Absorption of Aluminum TPMS Structures Under Dynamic Loading

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT Triply periodic minimal surfaces (TPMS) constitute a prominent class of cellular structures and have gained considerable attention in current research. These structures are genus‐infinite surfaces with zero mean curvature, which prevents self‐intersection. They also exhibit periodicity in all three spatial directions and exhibit enhanced multi‐
Sören Bieler, Denis Anders, Marcel Walkowiak, Kerstin Weinberg   +3 more
wiley   +1 more source

Cost of parasite exposure depends on host ontogeny 寄生接觸的代價依賴於宿主發育階段

Ecological Entomology, Volume 51, Issue 3, Page 592-603, June 2026.
The cost of parasite exposure varies across host developmental stages, demonstrating that ontogeny influences the expression of non‐consumptive effects (NCEs). Mite exposure resulted in consumptive effects in fly eggs and NCEs in early‐stage pupae; mite longevity was comparable when provisioned with pupae or water but increased when provisioned with ...
Lisa R. MacLeod, Connor L. MacPherson, Lien T. Luong   +2 more
wiley   +1 more source