Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Biological Effects of Radiation02:59

Biological Effects of Radiation

18.4K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
18.4K
Types of Radioactivity03:23

Types of Radioactivity

20.2K
The most common types of radioactivity are α decay, β decay, γ decay, neutron emission, and electron capture.
Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:
20.2K
Mutations01:35

Mutations

44.8K
Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
44.8K
The Electromagnetic Spectrum02:37

The Electromagnetic Spectrum

66.4K
The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
66.4K
The Electromagnetic Spectrum01:24

The Electromagnetic Spectrum

34.1K
Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
34.1K
Radiation: Applications01:17

Radiation: Applications

1.9K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
1.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The causes of cancer in France.

Annals of oncology : official journal of the European Society for Medical Oncology·2008
Same author

Opinions of Quebec parents and vaccinators on the usefulness of chickenpox vaccine.

The Canadian journal of infectious diseases = Journal canadien des maladies infectieuses·2007
Same author

Low-dose risk assessment.

Radiation research·2007
Same author

The debate on the use of linear no threshold for assessing the effects of low doses.

Journal of radiological protection : official journal of the Society for Radiological Protection·2006
Same author

Recent reports on the effect of low doses of ionizing radiation and its dose-effect relationship.

Radiation and environmental biophysics·2006
Same author

Identification of the cytochrome P450 enzymes involved in the metabolism of domperidone.

Xenobiotica; the fate of foreign compounds in biological systems·2005
Same journal

[Risk of accidents for a Parisian pedestrian].

Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie·2002
Same journal

Differences in the social context of song production in captive male and female European starlings.

Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie·2002
Same journal

[Predictive value of biological species for plant conservation in the Mediterranean area].

Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie·2002
Same journal

[Biological quality of seawater evaluated in situ with embryo-larval test of Crassostrea gigas and Mytilus galloprovincialis].

Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie·2002
Same journal

Removal of cell-bound lipoproteins: a crucial step for the efficient infection of liver cells with hepatitis C virus in vitro.

Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie·2002
Same journal

[Contribution of experimental models to the understanding of immunity to schistosomiasis].

Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie·2002
See all related articles

Related Experiment Video

Updated: Feb 27, 2026

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
06:51

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities

Published on: February 20, 2021

5.6K

[Ionizing radiation].

R Masse1

  • 1MasseRol@aol.com

Comptes Rendus De L'Academie Des Sciences. Serie III, Sciences De La Vie
|September 13, 2000
PubMed
Summary
This summary is machine-generated.

The linear non-threshold hypothesis (LNT) for radiation risk is challenged by scientific evidence. New findings suggest LNT overestimates cancer risks from low-dose radiation exposure.

More Related Videos

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

21.2K
Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
07:31

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator

Published on: May 9, 2014

12.2K

Related Experiment Videos

Last Updated: Feb 27, 2026

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
06:51

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities

Published on: February 20, 2021

5.6K
Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

21.2K
Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
07:31

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator

Published on: May 9, 2014

12.2K

Area of Science:

  • Radiation biology
  • Epidemiology
  • Risk assessment

Context:

  • Radiation exposure from natural, man-made, and medical sources is ubiquitous.
  • Average annual exposure is approximately 3.5 mSv, with significant natural variations.
  • Epidemiological studies show cancers primarily after high-dose, high-rate exposures (>100 mSv).

Purpose:

  • To evaluate the scientific basis of the linear non-threshold (LNT) hypothesis for radiation risk.
  • To examine evidence questioning LNT's applicability to low-dose and low-dose-rate exposures.
  • To explore alternative biological mechanisms and their implications for radiation protection.

Summary:

  • The LNT model, used for radiation risk management, is challenged by French Academy of Sciences and Medicine.
  • Evidence from Hiroshima/Nagasaki, epidemiological data, and cellular/molecular biology disputes LNT's validity.
  • Alternative mechanisms like inducible stress responses and bystander effects suggest non-linear dose-response relationships.

Impact:

  • LNT overestimates low-dose radiation risks, causing public anxiety and potentially unnecessary regulatory burdens.
  • Challenging LNT may lead to more accurate risk perception and management of radioactive sources.
  • This research calls for a re-evaluation of radiation protection policies based on current scientific understanding.