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Record W2299916974 · doi:10.15273/pnsis.v42i2.3616

ULTRASTRUCTURE AND CHARACTERISTICS OF A DEEP-SEA BACTERIUM

2004· article· en· W2299916974 on OpenAlexaffvenue
Bhavleen Kaur, Henrietta Mann

Bibliographic record

VenueProceedings of the Nova Scotian Institute of Science · 2004
Typearticle
Languageen
FieldEnvironmental Science
TopicMicrobial Community Ecology and Physiology
Canadian institutionsDalhousie University
Fundersnot available
KeywordsUltrastructureFlagellumNucleoidBacteriaCytoplasmBiologyStainingMicrobiologyMolecular biologyBotanyCell biologyEscherichia coliGenetics

Abstract

fetched live from OpenAlex

The ultrastructure of a bacterium, isolated from rusticles found on the wreck of the Royal Mail Steamship (R.M.S.) Titanic, was studied. The bacterium was rod-shaped, gram-negative and produced circular, off-white, opaque colonies on marine agar. Transmission electron microscopy revealed that the bacterium had a typical gram-negative cell wall structure; the nucleoid region was scattered throughout the cytoplasm and darkly stained inclusions were found in the cytoplasm. Negative staining illustrated the presence of 2-6 peritrichous flagella on the bacterium. This bacterial isolate may be part of transient consortia involved in the formation of the rusticles.On a étudié l’ultrastructure d’une bactérie, isolée de concrétions de rouille en stalactite provenant de l’épave du Royal Mail Steamship (R.M.S.) Titanic. La bactérie, en forme de bâtonnet, était Gram négatif et produisait des colonies circulaires, blanc cassé et opaques sur de l’agar marin. La microscopie électronique à transmission a révélé que la structure de la paroi cellulaire de la bactérie était typiquement Gram négatif; la région du nucléoïde était dispersée dans le cytoplasme, caractérisé par des inclusions foncées. La coloration négative a révélé la présence de 2 à 6 flagelles péritriches. Cet isolat bactérien pourrait faire partie des consortiums transitoires qui contribuent à la formation des concrétions de rouille.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.008
GPT teacher head0.212
Teacher spread0.204 · 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; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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

Citations1
Published2004
Admission routes2
Has abstractyes

Explore more

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