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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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Dose-Response Relationship: Overview01:03

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Agonists can bind with and activate receptors, resulting in the formation of drug-receptor complexes. Once formed, these complexes catalyze many biochemical processes at the cellular level and subsequently induce a pharmacologic response. The degree of response is directly proportional to the fraction of activated receptors, which in turn, depends on the concentration of the drug at the receptor site as well as the sensitivity of the receptor. An increase in the administered dose contributes to...
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Dose Size and Dosing Frequency: Determination Methods01:21

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Determining the optimal dose size and dosing frequency in pharmacotherapy is crucial for achieving therapeutic effectiveness while minimizing adverse effects. This article explores the methodologies employed in determining these parameters, focusing on their significance and interplay to tailor dosing regimens.Dose Size: Dose size refers to the amount of a drug administered in a single dose. It is determined based on the drug's pharmacodynamics and pharmacokinetics properties and...
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Dosage Regimens: Partial Pharmacokinetic Parameters01:01

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It is not uncommon for complete drug pharmacokinetic profiles to remain elusive in pharmacokinetics. This necessitates certain educated assumptions by pharmacokineticists to determine appropriate dosage regimens without comprehensive pharmacokinetic data from animal or human studies. One prevalent assumption is setting the bioavailability factor, denoted as F, to 1 or 100%. This assumption caters to the scenario where a drug doesn't achieve full systemic absorption, resulting in the patient...
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Dosage Regimen: Individualization01:24

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Individualization in dosing regimens is the customization of medication doses for individual patients. Its necessity arises from the goal of maximizing therapeutic benefits while minimizing risks. This approach is pivotal because human responses to drugs can vary widely; what is effective for one person may be inadequate or excessive for another. Interpatient (intersubject) variability refers to differences in drug responses between individuals, while intrapatient (intrasubject) variability...
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Dose-Response Relationship: Selectivity and Specificity01:25

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Drugs exert their therapeutic effects by interacting with receptors, enzymes, or ion channels that are present throughout the human body. The strength and duration of the interaction between a drug and its target receptor are characterized by the selectivity and specificity of the drug. Selectivity refers to a drug's strong preference for its intended target over other targets. For instance, isoprenaline, a non-selective β-adrenergic agonist, interacts with both β1- and...
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Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
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Using and Explaining Individual Dosimetry Data.

Makoto Miyazaki1

  • 11 Fukushima Medical University, Fukushima, Japan.

Asia-Pacific Journal of Public Health
|March 24, 2017
PubMed
Summary
This summary is machine-generated.

Individual radiation dose measurement is vital for nuclear accident protection. The Fukushima D-shuttle project used personal dosimeters, highlighting the need for resident trust and clear communication of radiation exposure data.

Keywords:
D-shuttleindividual dosenuclear disasterradiation health managementradiation protection

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Area of Science:

  • Environmental Science
  • Public Health
  • Nuclear Safety

Background:

  • Accurate individual radiation dose measurement is essential for effective protective strategies following nuclear accidents.
  • The 2011 TEPCO Fukushima Daiichi Nuclear Power Plant accident underscored the need for robust personal exposure monitoring systems.

Purpose of the Study:

  • To review initiatives implemented after the Fukushima Daiichi accident, focusing on personal radiation dose measurement.
  • To analyze the outcomes and challenges of the D-shuttle project, which involved residents measuring their own external exposure.

Main Methods:

  • The D-shuttle project involved providing personal dosimeters to residents in affected areas for self-measurement of external radiation exposure.
  • Qualitative analysis of experiences and challenges encountered during the implementation of the D-shuttle project.

Main Results:

  • The D-shuttle project demonstrated the dual utility of individual dose data for personal protection and population dose distribution analysis.
  • Key challenges identified include establishing resident trust and ensuring effective communication of radiation measurement results.

Conclusions:

  • Effective radiation dose measurement requires mutual understanding between residents and authorities regarding the meaning and use of data.
  • Future initiatives must prioritize resident privacy and concerns while utilizing individual dose data for public health protection.