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Record W2002317520 · doi:10.1080/01919510108962024

Sequential Inactivation of<i>Cryptosporidium</i>Using Ozone Followed by Free Chlorine in Natural Water

2001· article· en· W2002317520 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.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueOzone Science and Engineering · 2001
Typearticle
Languageen
FieldImmunology and Microbiology
TopicParasitic Infections and Diagnostics
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsCryptosporidium parvumChlorineOzoneInfectivityChemistryEnvironmental chemistryWater treatmentCryptosporidiumMicrobiologyBiologyEnvironmental scienceEnvironmental engineeringVirologyOrganic chemistryFeces

Abstract

fetched live from OpenAlex

Abstract Sequential inactivation of Cryptosporidium parvum oocysts in modified natural water using ozone followed by free chlorine was studied. Experiments were conducted at 22°C in modified North Saskatchewan River water at pH 8.5 and pH 6. Animal infectivity using neonatal CD-1 mice was used to measure oocyst viability after treatment. The results showed that the overall inactivation of C parvum using ozone followed by free chlorine in modified NSR water was greater at pH 6 compared; to pH 8.5, but that a synergistic effect was observed at pH 8.5 and not at pH 6. The results also indicated that models developed for ozone inactivation in lab water adequately predicted the inactivation of C. parvum in the modified natural water but models developed for free chlorine in lab water did not give an adequate prediction of the free chlorine inactivation. There were no natural water effects on the inactivation of C. parvum when chemical treatment was not applied.

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 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 score0.013
Threshold uncertainty score0.288

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 studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.220
Teacher spread0.213 · 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