Calcium cyclotron resonance and diatom mobility

Bioelectromagnetics · 1987 · Mixed · Insufficient evidence

← Research stream

MixedInsufficient evidencePaper 6695

Study snapshot

PublicationBioelectromagnetics · 1987

Study typeother

Reported directionMixed

Evidence ratingInsufficient

Abstract

The hypothesis that movement of biological ions may be predicted by cyclotron resonance theory applied to cell membranes is tested in these experiments. Diatoms (Amphora coffeaeformis) were chosen as the biosystem since they move or don't move, depending on how much calcium is transported across the membrane. The experiments demonstrate that a particular ion (calcium) is apparently moved across the cell membrane in response to the DC and AC values of magnetic flux densities (B) and the frequency derived from the cyclotron resonance theory. A clear resonance is shown and a rather sharp frequency response curve is demonstrated. The experiments also show a dose response as the AC value of the flux density is varied, and that odd harmonics of the basic cyclotron frequency are also effective.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother

Effect directionmixed

PopulationDiatoms (Amphora coffeaeformis)

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 66% · Peer reviewed: yes

Main findings

Experiments in diatoms showed an apparent movement of calcium across the cell membrane in response to specific DC and AC magnetic flux densities and a frequency derived from cyclotron resonance theory. A clear resonance with a sharp frequency response curve was reported, along with a dose response as AC flux density varied and effects at odd harmonics of the basic cyclotron frequency.

Outcomes measured

Diatom mobility (move vs. don't move)
Calcium transport across the cell membrane
Frequency response/resonance to applied magnetic fields
Dose response to AC magnetic flux density
Effectiveness of odd harmonics of cyclotron frequency

Limitations

Sample size not reported in abstract
Exposure parameters (exact flux densities and frequencies) not specified in abstract
Experimental design details (controls, blinding, replication) not described in abstract

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Diatoms (Amphora coffeaeformis)",
  "sample_size": null,
  "outcomes": [
    "Diatom mobility (move vs. don't move)",
    "Calcium transport across the cell membrane",
    "Frequency response/resonance to applied magnetic fields",
    "Dose response to AC magnetic flux density",
    "Effectiveness of odd harmonics of cyclotron frequency"
  ],
  "main_findings": "Experiments in diatoms showed an apparent movement of calcium across the cell membrane in response to specific DC and AC magnetic flux densities and a frequency derived from cyclotron resonance theory. A clear resonance with a sharp frequency response curve was reported, along with a dose response as AC flux density varied and effects at odd harmonics of the basic cyclotron frequency.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in abstract",
    "Exposure parameters (exact flux densities and frequencies) not specified in abstract",
    "Experimental design details (controls, blinding, replication) not described in abstract"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "calcium cyclotron resonance",
    "diatom mobility",
    "Amphora coffeaeformis",
    "magnetic flux density",
    "DC magnetic field",
    "AC magnetic field",
    "cell membrane",
    "calcium transport",
    "frequency response",
    "dose response",
    "harmonics"
  ],
  "suggested_hubs": [
    {
      "slug": "elf-emf",
      "weight": 0.62,
      "reason": "Study involves DC and AC magnetic flux densities and cyclotron resonance-type frequency effects, consistent with low-frequency magnetic field exposure."
    }
  ]
}

AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1002/bem.2250080302
PubMed: 3663247

Read the original paper →

Related papers

← Back to the Research Library