Healthy nails are usually clear but if they change colour it can be a warning of other health issues and mean it is time to ...

Healthy nails are smooth and consistent in colour but there are times they can change colour from blue to yellow and this can ...

What does early nail melanoma look like? In about two-thirds of people with nail melanoma, the main symptom is longitudinal melanonychia, a dark vertical streak or line under the nail plate.

Longitudinal melanonychia is the occurrence of tan, brown, or black pigmented bands along the length of the nail bed. It occurs most often in dark-skinned individuals, and it affects girls more ...

Dermatology Nursing. 2007;19(1):83-84. Athletes may develop sports-related subungual hematomas. Repeated trauma to the nail bed occurs each time the toe contacts the inside of the sneaker.

Essential for non-statisticians and researchers working with longitudinal data from medical studies, this updated new edition discusses the most important techniques available for analysing data of ...

The common method of digital recording on a magnetic material. The bits are laid out end to end, and the direction of the magnetic charge is horizontal with respect to the medium. THIS DEFINITION ...

Before performing a longitudinal (experimental) study, it is “necessary” to calculate the number of subjects needed to ensure that a certain predefined effect will be significant. Sample size ...

ripples on the surface of water vibrations in a guitar string a Mexican wave in a sports stadium electromagnetic waves - eg light waves, microwaves, radio waves seismic S-waves ...