{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T19:43:40Z","timestamp":1775763820236,"version":"3.50.1"},"reference-count":61,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2021,3,31]],"date-time":"2021-03-31T00:00:00Z","timestamp":1617148800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Many exogenous and endogenous risk factors have been proposed as precursors of brain tumors, including the exposure to non-ionizing electromagnetic fields. Nevertheless, there is still a debate among the scientific community about the hazard of the effects produced by non-ionizing radiation (NIR) because conflicting results have been found (number of articles reviewed &gt;50). For that reason, to provide new evidence on the possible effects produced by exposure to NIR, we performed different studies with several combinations of extremely low frequencies, times, and field intensities in tumoral and non-tumoral cells. The results of our studies showed that cell viability was frequency dependent in glioblastoma cells. In fact, our results revealed that a frequency of 30 Hz\u2014or even other frequencies close to 30 Hz\u2014could constitute a window frequency determinant of the cellular response in tumoral and non-tumoral cells.<\/jats:p>","DOI":"10.3390\/ijms22073642","type":"journal-article","created":{"date-parts":[[2021,3,31]],"date-time":"2021-03-31T10:24:33Z","timestamp":1617186273000},"page":"3642","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["30 Hz, Could It Be Part of a Window Frequency for Cellular Response?"],"prefix":"10.3390","volume":"22","author":[{"given":"Olga","family":"Garc\u00eda-Minguill\u00e1n","sequence":"first","affiliation":[{"name":"Escuela T\u00e9cnica Superior de Ingenieros de Telecomunicaci\u00f3n, Universidad Polit\u00e9cnica de Madrid, 28040 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ceferino","family":"Maest\u00fa","sequence":"additional","affiliation":[{"name":"Escuela T\u00e9cnica Superior de Ingenieros de Telecomunicaci\u00f3n, Universidad Polit\u00e9cnica de Madrid, 28040 Madrid, Spain"},{"name":"CTB (CTB-UPM) Centro de Tecnolog\u00eda Biom\u00e9dica, Universidad Polit\u00e9cnica de Madrid, 28223 Pozuelo de Alarc\u00f3n, Spain"},{"name":"CIBER-BBN Centro de Investigaci\u00f3n Biom\u00e9dica en Red, 28029 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,3,31]]},"reference":[{"key":"ref_1","unstructured":"Garc\u00eda-Minguill\u00e1n L\u00f3pez, O. 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