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Record W2025444677 · doi:10.1080/00173130052504342

The influence of sampler height and orientation on airborne<i>Ambrosia</i>pollen counts in Montreal

2000· article· en· W2025444677 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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueGrana · 2000
Typearticle
Languageen
FieldMedicine
TopicAllergic Rhinitis and Sensitization
Canadian institutionsnot available
Fundersnot available
KeywordsPollenEnvironmental scienceSampling (signal processing)AerobiologyOrientation (vector space)Atmospheric sciencesMeteorologyPhysical geographyBiologyEcologyMathematicsGeographyGeologyGeometryPhysics

Abstract

fetched live from OpenAlex

Airborne pollen concentrations are normally estimated by sampling 10 liters of air a minute at a height of 15-20 meters, e.g. on top of a university or hospital building. It is generally believed that at this height a homogeneous cloud of pollen is sampled, and that the results obtained will be representative of a large area. However, this protocol still leaves some doubts about the actual concentration found at breathing level (1.5 m). Since pollen counts are often used to forecast risk of allergies using threshold values, the height difference in concentrations can have important implications. Many previous studies have tackled this problem, but contradictory results were obtained. In our protocol, personal volumetric Burkard samplers were used at 0, 5, 10 and 15 m and at two different orientation (NW and NE) of a single building in Montreal, Canada. Results from 320 samples show that exposure and sampling hours were non-significant factors of Ambrosia pollen variation, but that height was a factor more significant than daily variations (the usual factor investigated in Aerobiology). An interaction was also found between the influences of height and orientation.

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: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.916
Threshold uncertainty score0.093

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 head0.008
GPT teacher head0.233
Teacher spread0.226 · 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