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Record W2395385299 · doi:10.3934/mbe.2016.13.135

A delayed HIV-1 model with virus waning term

2015· article· en· W2395385299 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.

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

Bibliographic record

VenueMathematical Biosciences & Engineering · 2015
Typearticle
Languageen
FieldMedicine
TopicMathematical and Theoretical Epidemiology and Ecology Models
Canadian institutionsWilfrid Laurier University
Fundersnot available
KeywordsBasic reproduction numberVirusClearanceViral loadPopulationCTL*Immune systemVirologyViral replicationBiologyTerm (time)Human immunodeficiency virus (HIV)Hopf bifurcationSteady state (chemistry)Viral infectionCD8ImmunologyControl theory (sociology)BifurcationPhysicsMedicineComputer scienceControl (management)Chemistry

Abstract

fetched live from OpenAlex

In this paper, we propose and analyze a delayed HIV-1 model with CTL immune response and virus waning. The two discrete delays stand for the time for infected cells to produce viruses after viral entry and for the time for CD$8^+$ T cell immune response to emerge to control viral replication. We obtain the positiveness and boundedness of solutions and find the basic reproduction number $R_0$. If $R_0&lt;1 then=&quot;&quot; the=&quot;&quot; infection-free=&quot;&quot; steady=&quot;&quot; state=&quot;&quot; is=&quot;&quot; globally=&quot;&quot; asymptotically=&quot;&quot; stable=&quot;&quot; and=&quot;&quot; the=&quot;&quot; infection=&quot;&quot; is=&quot;&quot; cleared=&quot;&quot; from=&quot;&quot; the=&quot;&quot; t-cell=&quot;&quot; population=&quot;&quot; whereas=&quot;&quot; if=&quot;&quot; r_0=&quot;&quot;&gt;1$, then the system is uniformly persistent and the viral concentration maintains at some constant level. The global dynamics when $R_0&gt;1$ is complicated. We establish the local stability of the infected steady state and show that Hopf bifurcation can occur. Both analytical and numerical results indicate that if, in the initial infection stage,the effect of delays on HIV-1 infection is ignored, then the risk of HIV-1 infection (if persists) will be underestimated. Moreover, the viral load differs from that without virus waning. These results highlight the important role of delays and virus waning on HIV-1 infection.<!--1--><!--1-->

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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)0.001
Version: codex-gemma-dda1882f352aValidation 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: Empirical · Consensus signal: none
Teacher disagreement score0.932
Threshold uncertainty score0.477

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
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 head0.036
GPT teacher head0.269
Teacher spread0.233 · 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