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Record W4253306743 · doi:10.47339/ephj.2020.24

Delivering disease

2020· article· en· W4253306743 on OpenAlexvenueno aff
Matthew Latter, Environmental Health BCIT School of Health Sciences, Helen Heacock

Bibliographic record

VenueBCIT Environmental Public Health Journal · 2020
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicFood Safety and Hygiene
Canadian institutionsnot available
Fundersnot available
KeywordsFood deliveryStatisticsToxicologyEnvironmental scienceFood scienceMathematicsAdvertisingChemistryBusinessBiology

Abstract

fetched live from OpenAlex

Background and Purpose: Online food delivery services are third party entities that deliver foods from restaurants to consumers. These services are exploding in popularity around the world. The lack of regulation in this industry creates a scenario for time temperature abuse to occur. This study specifically investigates the efficacy of thermally insulated delivery bags used ubiquitously by these online food services. Methods: 30 samples of Janes Pub-Style Chicken Nuggets were cooked for 30 minutes to an internal temperature of 74°C. The nuggets were then inserted with a SmartButton temperature data logger. The nuggets were then placed into a High-Density Polyethylene take-out container. The whole set-up was then placed into a Winco Thermally Insulated Delivery Bag for a one hour period. Time and temperature of the chicken nuggets was recorded over a one hour period to reflect realistic delivery times. Results: A correlation/regression analysis was performed which showed that as the time increased so too did the temperature. Correlational coefficient, r = -0.9363, coefficient of determination, r2 = 0.8766, (p = 0.000). The equation of the line was Temperature = (67.9996) + [(-0.6828) × Time]. Temperature of the chicken nuggets fell below 60°C after 12 minutes in the delivery bag. The median temperature of chicken nuggets after a one hour period was 44.5°C. This was found to be statistically different from the standard of 60°C with a p-value of 0.0000 Conclusion: The median temperature of chicken nuggets after the one hour sampling period did not reach the food safety standard of 60°C. Foods kept at a temperature below 60°C and above 4°C are considered in the temperature danger zone. In this range, pathogenic bacteria grow at their optimal rate. Therefore, it was determined that thermally insulated bags were unable to maintain foods at temperatures hot enough to be considered safe.

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 categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.963
Threshold uncertainty score0.998

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)0.0030.000

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 head0.069
GPT teacher head0.218
Teacher spread0.149 · 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 teacher head, not a consensus.

Study designOther design
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

Citations0
Published2020
Admission routes1
Has abstractyes

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