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Record W7034578437

Valorisation des extraits de pin gris (Pinus banksiana) par l'étude de leur composition chimique et de leurs activités biologiques

2008· other· fr· W7034578437 on OpenAlexvenueno aff

Bibliographic record

VenueLibrary and Archives Canada (Government of Canada) · 2008
Typeother
Languagefr
FieldEarth and Planetary Sciences
TopicEvolution and Paleontology Studies
Canadian institutionsnot available
Fundersnot available
KeywordsPlant tissueContext (archaeology)
DOInot available

Abstract

fetched live from OpenAlex

L'industrie forestière du Québec abandonne annuellement environ 10 millions de mètres cube de résidus forestiers sur les parterres de coupe. Les travaux de recherche ont été effectués à l'UQAC. Les travaux présentés dans ce mémoire tentent d'identifier par le truchement de l'analyse phytochimique de nouvelles substances bioactives à valoriser à même ces rejets de coupe. \n \nAu total, 11 espèces d'essences ligneuses de la forêt boréale, réparties sur deux récoltes, ont été testées pour l'activité anticancéreuse, antibiotique, antioxydante et antifongique de leurs bois. Les résultats d'analyse nous ont amené à concentrer l'effort sur le Pinus banksiana qui démontrait une très bonne réponse aux tests anticancéreux. \n \nAu cours des travaux, dix molécules comprenant entre autre des flavonoïdes (la pinobanksine ainsi que sont dérivé acétate, la pinocembrine), et des acides résiniques faydroxylé ont été isolées par diverses techniques chromatographiques, identifiées par résonance magnétique nucléaire et testées sur des cultures de cellules pour déterminer la ou les molécules responsables de l'activité anticancéreuse observée sur les extraits bruts.

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: Other · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.007

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 communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.014
GPT teacher head0.176
Teacher spread0.162 · 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
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

Citations0
Published2008
Admission routes1
Has abstractyes

Explore more

Same venueLibrary and Archives Canada (Government of Canada)Same topicEvolution and Paleontology StudiesFrench-language works237,207