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There appears to be a correlation between the 22-year solar cycle and:
Aseptic Technique
Practices and procedures performed under sterile conditions aimed at minimizing the risk of infection.
Serrations
Notches or jagged edges found on tools, knives, or some types of leaves, designed to improve function or efficiency.
Contamination
The undesirable introduction of impurities or harmful substances into or on to a clean or pure environment, making it unsafe.
Microorganisms
Tiny living organisms, such as bacteria, viruses, fungi, and algae, that can be seen only with a microscope.
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