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Ultrastructure of the statocyst of the marine enchytraeid <i>Grania americana</i> (Annelida: Clitellata)

2000· article· en· W1970023423 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueInvertebrate Biology · 2000
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicMarine Biology and Ecology Research
Canadian institutionsUniversity of Toronto
FundersBundesinstitut für Bau- Stadt- und Raumforschung
KeywordsClitellataBiologyAnatomyUltrastructureAppendageCiliumCell biology

Abstract

fetched live from OpenAlex

Abstract. The enchytraeid Grania americana has a dorsal statocyst within the peristomium. It is connected to the anterior end of the cerebral ganglion. Transmission electron and light microscopy were used to study this region of the head. The statocyst is divided into four membrane‐bound chambers; each contains an electron dense statolith surrounded by numerous sensory cilia, so that it is a multi‐chambered or compound statocyst. Cilia within the statocyst possess a 9 × 2 + 0 microtubule arrangement, with one of the doublets in a central position. All cilia that were observed in the statocyst and in the cerebral ganglion had this arrangement of microtubules. This is the first description of a statocyst in the Clitellata. The statocyst of G. americana is compared to those described in polychaetes and may provide useful information for phylogenetic and taxonomic studies of the genus, of clitellates, and of annelids.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.039
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0190.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.200
Teacher spread0.194 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it