MétaCan
Menu
Back to cohort

Diet and Sulfur Isotopes

2018· other· en· W4251632873 on OpenAlexaff
Asta J. Rand, Olaf Nehlich

Bibliographic record

VenueThe Encyclopedia of Archaeological Sciences · 2018
Typeother
Languageen
FieldEarth and Planetary Sciences
TopicArchaeology and ancient environmental studies
Canadian institutionsUniversity of British ColumbiaMemorial University of Newfoundland
Fundersnot available
KeywordsSulfurIsotopeStable isotope ratioIsotope analysisSoil waterArchaeologyIsotopes of nitrogenEnvironmental chemistryEcologyEnvironmental scienceChemistryGeographyBiology

Abstract

fetched live from OpenAlex

The analysis of stable sulfur isotopes from human and animal tissues is a relatively recent development in archaeological dietary studies. In human diets, sulfur is ultimately derived from soils at the base of the food chain, which are influenced by local lithology, hydrology, and atmospheric circulation. Plants assimilate local soil δ 34 S values into amino acids that are incorporated into the tissues of their consumers, making it possible to differentiate the source of dietary protein (i.e., marine, terrestrial, or freshwater) and identify individuals with nonlocal diets. Recent developments in method and theory have allowed sulfur isotope analysis to be more routinely employed in isotopic studies of archaeological diet, although several key areas require further research. When applied in conjunction with other isotopic assays and interpreted within the environmental and archaeological contexts, stable sulfur isotope analysis offers a powerful and complementary tool for the investigation of archaeological diets.

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 categoriesScience and technology studies, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.523
Threshold uncertainty score0.988

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 studies0.0000.017
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0130.000

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 head0.220
Teacher spread0.205 · 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 designObservational
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

Citations4
Published2018
Admission routes1
Has abstractyes

Explore more

Same venueThe Encyclopedia of Archaeological SciencesSame topicArchaeology and ancient environmental studiesFrench-language works237,207