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Record W2342426918

Joint modeling of genetic linkage and association

2014· dissertation· en· W2342426918 on OpenAlexaboutno aff
Haiyan Yang

Bibliographic record

VenueMemorial University Research Repository (Memorial University) · 2014
Typedissertation
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicGenetic Associations and Epidemiology
Canadian institutionsnot available
Fundersnot available
KeywordsGeneticsLinkage (software)Genetic associationGenetic linkageQuantitative trait locusBiologyLocus (genetics)Association mappingPopulationDiseaseGenotypeGeneMedicineSingle-nucleotide polymorphism
DOInot available

Abstract

fetched live from OpenAlex

Understanding the complexities involved in identifying disease causing genes is \nstill a monumental task. As we know, genetic variants and environmental factors can \ninfluence the risk of disease outcomes. Epidemiological studies have identified that \nage is one of a number of environmental risk factors for Familial Pulmonary Fibrosis \n(FPF), but the genetic risk factors involved identification of disease causing genes still \nare a problem largely unsolved. An inherited disease-causing locus occurs in the same \ngenomic position as an ancestor who has the disease trait, and the disease genotype \nmay be associated with a marker genotype. A joint modeling of genetic linkage and \nassociation within families having a remote common ancestor or at population level is \npresented in this thesis. This joint modeling uses a likelihood approach that allows the \ninclusion of other covariates into the model for quantitative traits and binary traits with \nmultivariate random effects. Power studies via simulation compare the new proposed \nprocedure with standard linkage or association procedures. The joint test is more powerful \nthan linkage or association test alone where both sources of variation of linkage or \nassociation are present. Furthermore, the proposed method also allows testing against \nspecific alternatives - for example, against the significance of linkage where there is \nno association, significance of association where there is no linkage, and significance \nof both linkage and association. By utilizing data from five FPF families in Newfoundland, \nfour candidate loci were identified for the linkage or/and association with \nage-at-onset gene and FPF (rs4605929 in chromosome 6, rs11078200 in chromosome \n7, rs1941686 in chromosome 18 and rs114682 in chromosome 22).

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)0.021
metaresearch head score (Gemma)0.047
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.026
Threshold uncertainty score0.112

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0210.047
Meta-epidemiology (narrow)0.0020.002
Meta-epidemiology (broad)0.0030.004
Bibliometrics0.0030.004
Science and technology studies0.0010.004
Scholarly communication0.0050.003
Open science0.0060.005
Research integrity0.0030.004
Insufficient payload (model declined to judge)0.0080.002

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 head0.023
GPT teacher head0.260
Teacher spread0.237 · 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 designTheoretical or conceptual
Domainnot available
GenreMethods

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
Published2014
Admission routes1
Has abstractyes

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