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Related Concept Videos

Biological Effects of Radiation02:59

Biological Effects of Radiation

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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...
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Radiation: Applications01:17

Radiation: Applications

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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.
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Isotopes and Radioisotopes01:28

Isotopes and Radioisotopes

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In the early 1900s, English chemist Frederick Soddy realized that an element could have atoms with different masses that were chemically indistinguishable. These different types are called isotopes — atoms of the same element that differ in mass. Isotopes differ in mass because they have different numbers of neutrons but are chemically identical because they have the same number of protons. Soddy was awarded the Nobel Prize in Chemistry in 1921 for this discovery.
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Nuclear Power02:36

Nuclear Power

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Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
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Radioactive Decay and Radiometric Dating02:48

Radioactive Decay and Radiometric Dating

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Radioactivity is a spontaneous disintegration of an unstable nuclide and is a random process, as all the nuclei in the sample do not decay simultaneously. The number of disintegrations per unit time is called the activity (A), which is directly proportional to the number of nuclei in the sample. The decay constant (λ) is an average probability of decay per nucleus in unit time.
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Radiation Pressure: Problem Solving01:09

Radiation Pressure: Problem Solving

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The radiation pressure applied by an electromagnetic wave on a perfectly absorbing surface equals the energy density of the wave. The wave's momentum also gets transferred to the surface when an electromagnetic wave is entirely absorbed by it. The rate at which momentum is transmitted to an absorbing surface perpendicular to the propagation direction equals the force on the surface.
The average value of the rate of momentum transfer divided by the absorbing area represents the average force...
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An Automated Microscopic Scoring Method for the γ-H2AX Foci Assay in Human Peripheral Blood Lymphocytes
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[THE ISSUE OF THE IMPACT OF RADIOACTIVE SUBSTANCES ON PUBLIC HEALTH AND COUNTERMEASURES FOR RADIATION EXPOSURE AS A

V V Sidorov1, E N Mingazova2,3,4, A Yu Bushmanov5

  • 1I. M. Sechenov First Moscow State Medical University (Sechenov University) of Minzdrav of Russia, 119991, Moscow, Russia, osmanov@bk.ru.

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Radioactive source use poses health risks, including reproductive harm. This study reviews ionizing radiation effects and protective strategies for contaminated populations.

Keywords:
COVID-19assisted reproductive technologiesfertilityinfertilitylow birth weight

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Area of Science:

  • Environmental Health Sciences
  • Radiation Biology
  • Reproductive Toxicology

Context:

  • Widespread use of radioactive sources in energy, medicine, and industry increases accidental exposure risks.
  • Environmental radioactive contamination and ozone depletion elevate population radiation exposure levels.
  • Ionizing radiation exposure can lead to severe health issues, including oncopathology, radiation burns, and immune dysfunction.

Purpose:

  • To analyze current scientific data on the impact of ionizing radiation on reproductive function.
  • To review modern approaches for correcting radiation-induced reproductive impairments.

Summary:

  • The study examines the detrimental effects of ionizing radiation on reproductive health.
  • It synthesizes research on the consequences of radioactive contamination and exposure.
  • Methods included bibliographic, information-analytical, and comparative analyses.

Impact:

  • Highlights the need for monitoring radioactive damage and implementing protective measures in food production and resource management.
  • Informs public health strategies for populations in contaminated areas.
  • Provides a foundation for developing interventions to mitigate reproductive health consequences of radiation exposure.