Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
3
datasets available to search
ShareScore release 0.7.1
Dataset results
3 results for “spermatozoon”
FIG. 4 in Ultrastructure of the spermatozoon of Leiopelma hochstetteri (Amphibia, Anura, Leiopelmatidae)
FIG. 4. — The single most parsimonious tree produced by an exhaustive search of anurans based on known spermatozoan ultrastructure. 6; tree length; consistency index = 0.8333; homoplasy index = 0.1667; retention index = 0.8889; rescaled consistency index = 0.7407.
FIG. 3 in Ultrastructure of the spermatozoon of Leiopelma hochstetteri (Amphibia, Anura, Leiopelmatidae)
FIG. 3. — Leiopelma hochstetteri; spermatozoon by transmission electron microscopy; A, transverse section (ts) through the nuclear fossa; B, ts through neck region, showing the two centrioles lying adjacent and parallel to each other; C, D, ts's through the midpiece, showing the "cytoplasmic" canal. Note the juxta-axonemal fibres at doublets 3 and 8, the short thickened undulating membrane and the axial fibre; E, longitudinal section (ls) of the midpiece. Note that the centriole and axial fibre do not enter the nuclear fossa; F-I, successive ts's through the flagellum; J, ts through the distal end of tail (endpiece). All to the same scale as indicated. Abbreviations: 3, juxta-axonemal fibre at 3; 8, juxta-axonemal fibre at 8; af, axial fibre; ax, axoneme; c, centriole; cc, cytoplasmic canal; cy, cytoplasm; m, mitochondrion; ms, mitochondrial sheath (cytoplasmic collar); n, nucleus; nf, nuclear fossa; pm, pericentriolar material; pr, paraxonemal rod; um, undulating membrane. Scale bar: 1 µm.
FIG. 2 in Ultrastructure of the spermatozoon of Leiopelma hochstetteri (Amphibia, Anura, Leiopelmatidae)
FIG. 2. — Leiopelma hochstetteri; A, Whole testicular spermatozoon shown by light microscopy; B-Q, transmission electron microscopy; B, longitudinal section (ls) of the nuclear rostrum region of a spermatid, showing what appears to be the remnant of a short endonuclear canal; C, ls of the apical region of the acrosome vesicles; D, E, ls's of the anterior acrosome, showing condensed "rod-like" subacrosomal material; F, ls of the mid region of the acrosome; G, ls of the base of the nuclear rostrum. Note the distinct nuclear shoulders (ns), the axially located lacunae (l) and that the subacrosomal material extend beyond the base of the acrosomal vesicle (arrow); H-O, successive transverse sections (ts's) through the acrosomal region indicated; P, ts through nucleus; Q, ls through the base of the acrosome surrounding the nuclear rostrum. Note the lacunae containing putative perforatorial material (see also N). Abbreviations: av, acrosome vesicle; f, flagellum; h, head (acrosome and nucleus); l, lacunae; mp, midpiece; n, nucleus; nr, nuclear rostrum; ns, nuclear shoulders; sc, subacrosomal cone. Scale bars: A, 10 µm; B-Q, 1 µm.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.