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Record W2117619935 · doi:10.1269/jrr.47.197

A Model for the Induction of DNA Damages and their Evolution into Cell Clonogenic Inactivation

2006· article· en· W2117619935 on OpenAlex
Hiroshi Yamaguchi, Hiroshi Ohara, A.J. Waker

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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJournal of Radiation Research · 2006
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicCarcinogens and Genotoxicity Assessment
Canadian institutionsOntario Tech University
Fundersnot available
KeywordsDNAIonizationBiophysicsDNA damageRadiationChemistryIrradiationRadicalBiological systemIonPhysicsBiologyBiochemistryOptics

Abstract

fetched live from OpenAlex

The dependence of the initial production of DNA damages on radiation quality was examined by using a proposed new model on the basis of target theory. For the estimation of DNA damage-production by different radiation qualities, five possible modes of radiation action, including both direct and indirect effects, were assumed inside a target the molecular structure of which was defined to consist of 10 base-pairs of DNA surrounded by water molecules. The induction of DNA damage was modeled on the basis of comparisons between the primary ionization mean free path and the distance between pairs of ionized atoms, such distance being characteristic on the mode of radiation action. The OH radicals per average energy to produce an ion pair on the nanosecond time scale was estimated and used for indirect action. Assuming a relation between estimated yields of DNA damages and experimental inactivation cross sections for AT-cells, the present model enabled the quantitative reproduction of experimental results for AT-cell killing under aerobic or hypoxic conditions. The results suggest a higher order organization of DNA in a way that there will be at least two types of water environment, one filling half the space surrounding DNA with a depth of 3.7-4.3 nm and the other filling all space with a depth 4.6-4.9 nm.

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 categoriesnone
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 score0.074
Threshold uncertainty score0.131

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
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 head0.032
GPT teacher head0.329
Teacher spread0.296 · 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