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Record W2587812193

An integrated framework modelling susceptibility to tuberculosis in homogeneous and admixed populations

2016· dissertation· en· W2587812193 on OpenAlexfundno aff
Zoe Zerihun Gebremariam

Bibliographic record

VenueSUNScholar (Stellenbosch University) · 2016
Typedissertation
Languageen
FieldMedicine
TopicTuberculosis Research and Epidemiology
Canadian institutionsnot available
FundersDivision of Mathematical SciencesNational Eye InstituteAfrican Institute for Mathematical SciencesInternational Development Research Centre
KeywordsHomogeneousTuberculosisComputational biologyBiologyStatistical physicsMedicinePhysicsPathology
DOInot available

Abstract

fetched live from OpenAlex

In spite of the wide variety of anti-tuberculosis drugs, tuberculosis (TB), caused by mycobacterium tuberculosis (MTB), is the second leading infectious disease after Human Immunodeciency Virus (HIV) or Acquired Immunodeciency Syndrome (AIDS), and one of the leading causes of human death from infectious diseases, especially in Sub-Saharan Africa.Approximately onethird of the world population are latently infected with MTB, of which, 10 % progress to active TB.Obstacles in TB control include lengthy treatment regimens of more than 6 months, drug resistance, lack of an eective vaccine and limited knowledge and incomplete information about factors that trigger the progression of an MTB infection to disease.Moreover, the association of TB and HIV or AIDS has also promoted all of the conditions of an explosive increase in TB incidence and prevalence.Several studies suggest that host genetic factors also aect susceptibility and resistance to TB. Genome wide association study (GWAS) provides a way of examining many common variants in dierent populations to see if any variant is associated with a trait by searching for small variations, called single nucleotide polymorphisms (SNPs).However, it is well known that GWAS alone is insucient to elucidate the genetic structure of a complex disease and may lead to non conclusive results.In this thesis, we use a post association analysis, which has been suggested as a new paradigm to GWAS, to elucidate and analyze human genetic susceptibility in relation to the infecting MTB by combining association signals from GWAS and available functional and comparative genomics information for human and MTB.We have identied 6 disease associated genes for the admixed ii

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)0.004
metaresearch head score (Gemma)0.012
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.054
Threshold uncertainty score0.108

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0040.012
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.003
Bibliometrics0.0010.002
Science and technology studies0.0010.001
Scholarly communication0.0030.002
Open science0.0040.002
Research integrity0.0030.003
Insufficient payload (model declined to judge)0.0050.001

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 head0.039
GPT teacher head0.326
Teacher spread0.287 · 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 designSimulation or modeling
Domainnot available
GenreEmpirical

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
Published2016
Admission routes1
Has abstractno

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