Vera Putterlik’s scientific contributions

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Publications (3)


Resonant Cellular Effects of Low Intensity Microwaves
  • Chapter

January 1988

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38 Reads

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46 Citations

W. Grundler

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U. Jentzsch

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V. Putterlik

Biological effects of low intensity microwaves have been the subject of a great number of studies and many different reactions were reported ranging from molecular to animal level. The acceptance level is low, however, due to difficulties both in reproducing the effects by others and in demonstrating their real athermal nature. In some cases great efforts were put into repeating athermal experiments, without clear results. In these studies the interpretation of data assumes a statistical behaviour which possibly is not adequate to the biological system (Kaiser 1984). These problems will probably remain as long as the mechanisms of these subtle effects are unknown. It seems worth thinking of new concepts for experimental investigations in athermal bioelectromagnetics. To focus on fundamental mechanisms, experiments must be oriented strongly by theoretical concepts rather than by simply investigating, for instance, biological reactions induced by a fixed frequency.



Resonant-like dependence of yeast growth rate on microwave frequencies
  • Article
  • Full-text available

April 1982

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185 Reads

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42 Citations

The British journal of cancer. Supplement

It is reaffirmed that there are changes in yeast growth rate, caused by low intensity microwave irradiation. These effects depend on frequency, showing a strong resonance-like behavior, and are not correlated to the microwave power used. These effects are not explainable in terms of simple thermal response. To continue this investigation, the geometry of the irradiation antenna and also further dependent biological parameters should be changed both in order to get a stronger indication of the influence of the physical parameters and a better understanding of the resulting biological reactions.

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Citations (3)


... In the case of frequency resonance, the EMF energy is effectively perceived by the object and may lead to restructuring of its structure and properties. It was described both theoretical and experimental determination of resonant frequencies (from molecules to the whole organism), which is the basis for establishing the primary receptors of biological action of weak EMFs [83][84][85][86]. ...

Reference:

Biological Risks of Using Non-Thermal Non-Ionizing Electromagnetic Fields
Nonthermal Resonant Effects of 42 GHz Microwaves on the Growth of Yeast Cultures
  • Citing Chapter
  • January 1983

... Some of the animal models with potential significance to wildlife cited in Pakhomov et al. [269] included: yeast: Saccharomyces cerevisiae, [294][295][296][297][298]; Candida albicans [299]; barley seeds [300]; protozoans Spirostum spp. [301]; blue-green algae Spirulina platensisby [302]; midge Acricotopus lucidus [303]; Escherichia coli [304]; rats [305]; frog/nerve cells [306][307][308][309][310]; antibiotic resistance to Staphylococcus aureus [311] and others. ...

Resonant Cellular Effects of Low Intensity Microwaves
  • Citing Chapter
  • January 1988

... Carew et al., (2014a), (2014b) observed a significant decrease in the native grape yeasts population when using high-power microwaves (1150 W) in grape crushing before fermentation, thus attaining a controlling effect. On starter cultures, MW could exert a beneficial effect if used throughout maceration by increasing the fermentation yield and reducing the lag phase of some yeasts (Carew et al., 2014a(Carew et al., , 2014b, probably as a result of an effect on the growth kinetics of Saccharomyces cerevisiae and related yeasts (Grundler et al., 1982). These effects are probably the result of power/intensity of MW treatments, as low-power treatment could improve growth kinetics, while highintensity treatment could determine yeasts' death (Pinto et al., 2020). ...

Resonant-like dependence of yeast growth rate on microwave frequencies

The British journal of cancer. Supplement