Glossary

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Electrodes

An electrode is an electrically conductive object that, together with a counter-electrode, can conduct electrical currents in tissue located between the two electrodes into a meter. In sleep examinations, electrodes are stuck to the body to measure, e.g., wake-up reactions.

Electrodes

An electrode is an electrically conductive object that, together with a counter-electrode, can send electrical currents in the tissue between the two electrodes to a meter. In sleep examinations, electrodes are stuck to the body to measure, e.g., wake-up reactions.

Epidemiology

Epidemiology is the study of the distribution of risk factors and diseases in populations. It contributes towards a better understanding of the cause of disease. Epidemiology develops measures to prevent disease or to prevent the spread of disease. It also helps to develop strategies for the treatment of diseases.

Exposure-effect relationship

The results of noise impact studies such as NORAH can often be expressed in exposure-effect relationships. This means that the scientists quantify as accurately as possible at which traffic noise exposure the risk of a certain disease increases by how much.

Exposure-risk relationship

This relationship describes the connection between the noise a person is exposed to (exposure), and a specific risk. In some cases, such relationships are linear, so that it can be said, e.g.: a noise increase of 10 dB increases the risk of heart attack by x percent.

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