{
  "annotation_id": "dc1e2ba4-be9b-47bf-8103-2e2008b4a1da",
  "date_created": "2026-03-02T18:00:50.153000Z",
  "date_modified": "2026-03-02T18:00:50.153000Z",
  "file_hash": "c4c86e497707a1ab4e8a20a9472c9d738f617ad2883c237222f866602322fcda",
  "private": false,
  "record": {
    "abstract": "We study the phase-synchronization properties of systolic and diastolic\narterial pressure in healthy subjects. We find that delays in the oscillatory\ncomponents of the time series depend on the frequency bands that are\nconsidered, in particular we find a change of sign in the phase shift going\nfrom the Very Low Frequency band to the High Frequency band. This behavior\nshould reflect a collective behavior of a system of nonlinear interacting\nelementary oscillators. We prove that some models describing such systems, e.g.\nthe Winfree and the Kuramoto models offer a clue to this phenomenon. For these\ntheoretical models there is a linear relationship between phase shifts and the\ndifference of natural frequencies of oscillators and a change of sign in the\nphase shift naturally emerges.",
    "arxiv_id": "physics/0402100",
    "authors": [
      "L. Angelini",
      "G. Lattanzi",
      "R. Maestri",
      "D. Marinazzo",
      "G. Nardulli",
      "L. Nitti",
      "M. Pellicoro",
      "G. D. Pinna",
      "S. Stramaglia"
    ],
    "categories": [
      "physics.med-ph",
      "physics.bio-ph",
      "q-bio.TO"
    ],
    "doi": "10.1103/PhysRevE.69.061923",
    "title": "Phase shifts of synchronized oscillators and the systolic/diastolic   blood pressure relation",
    "url": "https://arxiv.org/abs/physics/0402100"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2042dcac-f7e2-4f9d-a47f-2c83d240f8f7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}