A variety of abbreviations exist to designate the applicable certifications, specialties and education of nurse practitioners. General Abbreviation The general abbreviation for nurse practitioners is NP. A general nurse practitioner has completed at least a bachelor degree and has a license to work as a registered nurse (RN) in her home state. Additionally, she has at least two years experience practicing as an RN and has completed a masterâs degree and additional training.
Our body creates most of our vitamin D from direct sunlight on our skin. We also get vitamin D from some foods â including eggs, meat and oily fish such as salmon, mackerel and sardines.
How does heat travel from the sun to the earth? The sun is a star made from hydrogen that burns hot enough to fuse hydrogen nuclei together, which forms helium nuclei that release energy. The energy on the sun is known as solar radiation and, as it is electromagnetic, it has the properties needed to cut through space. This energy moves at 186,000 miles per second, allowing it to move fast enough to reach the Earth's surface.