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Record W4247139333 · doi:10.1007/978-1-59259-732-1_2

Spermatogonial Stem Cells

2004· book-chapter· nl· W4247139333 on OpenAlexaff
Dirk G. de Rooij

Bibliographic record

VenueHumana Press eBooks · 2004
Typebook-chapter
Languagenl
FieldMedicine
TopicSperm and Testicular Function
Canadian institutionsOttawa Hospital
Fundersnot available
KeywordsSertoli cellSeminiferous tubuleCell biologySpermatogenesisSomatic cellEpitheliumBiologyLumen (anatomy)TubuleBlood–testis barrierSecretionGerm cellInternal medicineStem cellEndocrinologyBiochemistryKidneyMedicine

Abstract

fetched live from OpenAlex

Spermatogenesis takes place in the seminiferous tubules (reviewed in ref. 1) (Fig. 1A). These tubules are lined by the peritubular myoid cells and contain both germ cells at all steps of their development into spermatozoa and a somatic cell type, the Sertoli cells (Fig. 1B). The Sertoli cells are situated on the basal membrane of the tubules, but have their ramifications throughout the epithelium up to the tubule lumen. These cells support the seminiferous epithelium by the secretion of growth factors (2) and other factors like lactate and pyruvate, which some types of germ cells need for their metabolism (3). In between the tubules, there is interstitial tissue containing Leydig cells, which produce testosterone.

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.

How this classification was reachedexpand

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 categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.955
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0060.006

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 head0.061
GPT teacher head0.252
Teacher spread0.192 · 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

Classification

machine, unvalidated

Machine predicted; both teacher heads agree on what is shown here.

Study designNot applicable
Domainnot available
GenreOther

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations4
Published2004
Admission routes1
Has abstractyes

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