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Record W4239490203 · doi:10.1002/9781119129431.ch16

Bacterial Contamination

2017· other· en· W4239490203 on OpenAlexaff
Sandra Ramírez‐Arcos, Mindy Goldman

Bibliographic record

Venuenot available
Typeother
Languageen
FieldMedicine
TopicBlood transfusion and management
Canadian institutionsCanadian Blood Services
Fundersnot available
KeywordsContaminationBacteriaMicrobiologyBiologyPathogenic bacteriaSkin floraEcology

Abstract

fetched live from OpenAlex

Bacterial contamination of blood components poses the most prevalent transfusion-transmitted infectious risk. Platelet concentrates (PCs) are the blood components most susceptible to bacterial contamination due to their storage conditions being amenable for bacterial growth. Gram-positive bacteria are the predominant PC contaminants. Although these bacteria have the ability to survive and proliferate during PC storage, most of them are considered to be non-pathogenic. Red cells are the most frequently transfused blood component. Contaminant bacteria of blood components can originate from the donor or the blood collection and processing procedures. Strategies used to decrease the levels of bacterial contamination in blood components include donor screening, skin disinfection, first aliquot diversion, pretransfusion detection and pathogen reduction technologies. Gram-positive skin flora are the predominant blood component contaminants. Gram-negative bacteria are less frequently found as blood component contaminants but they pose the major infectious risk due to their production of endotoxin.

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)0.002
metaresearch head score (Gemma)0.007
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.025
Threshold uncertainty score0.083

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.007
Meta-epidemiology (narrow)0.0020.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.002
Science and technology studies0.0020.001
Scholarly communication0.0030.001
Open science0.0010.002
Research integrity0.0020.001
Insufficient payload (model declined to judge)0.0250.012

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 head0.015
GPT teacher head0.272
Teacher spread0.257 · 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 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

Citations6
Published2017
Admission routes1
Has abstractyes

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