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Record W7020087813

An Investigation into the Biochemical Effects of
\nHeavy Metal Exposure on Seaweeds

2010· dissertation· en· W7020087813 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

VenueSETU Waterford Libraries - Open Access Repository · 2010
Typedissertation
Languageen
FieldEnvironmental Science
TopicHeavy metals in environment
Canadian institutionsnot available
FundersIrish Research CouncilIrish Research Council for Science, Engineering and Technology
KeywordsPolyphenolBioaccumulationAlgaeSize-exclusion chromatographyFucus vesiculosusCadmium
DOInot available

Abstract

fetched live from OpenAlex

Abstract\n\nOptimised methods, developed in this novel study, were utilised throughout the research. In environmental studies of Newfoundland and Ireland, interspecies and spatial variations in the total protein content and polyphenol levels of seaweeds were demonstrated. A positive correlation between total protein and temperature was\nestablished. A downstream increase in polyphenol levels of seaweeds was observed and correlated with a downstream increase in seawater salinity. P. lanosa contained the\nhighest levels of all metals. Levels of Pb2+, Cr3+ and Cu2+ in seaweed were highest for sites in Waterford City. The highest proportions of Pb2+, As3+, Cr3+, Cu2+, Ni2+ and Al3+\nwere intracellular.\n\nBaseline levels of total protein, extracted protein and polyphenols of four different seaweed species varied significantly. P. lanosa contained the highest total protein. F. vesiculosus and A. nodosum yielded the highest levels of polyphenols. Significant interspecies variations in total and intracellular metals were observed. Zn2+, As3+ and Mn2+ were dominant for all species. P. lanosa demonstrated the best overall metal bioaccumulation potential. Regression analysis demonstrated correlations between total protein and Pb2+, Ni2+, Cu2+ and Cd2+.\n\nSeasonal variations in levels of Cd2+, total protein, extracted protein and polyphenols of P. lanosa were observed. The highest levels of total protein were yielded in May. February demonstrated the highest extracted protein and November the lowest polyphenols. Increases in protein concentration following Cd2+ exposure were observed\nfor P. lanosa sampled in February. Increases in polyphenol levels following Cd2+ exposure were observed in the November samples. Potentiometric titrations and FTIR\nanalysis demonstrated seasonal variations in the binding potential of P. lanosa. Gel filtration chromatography, HPLC analysis and SDS PAGE demonstrated changes to the molecular weights of protein derived from P. lanosa following heavy metal exposure.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Scholarly communication
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 score0.058
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0010.001
Scholarly communication0.0020.005
Open science0.0050.002
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.012
GPT teacher head0.284
Teacher spread0.272 · 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