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Blackboard bold is a style of writing bold symbols on a blackboard by doubling certain strokes, commonly used in mathematical lectures, and the derived style of typeface used in printed mathematical texts. The style is most commonly used to represent the number sets ( natural numbers ), ( integers ), ( rational numbers ), ( real numbers ), and ...
I, XIV. Givhan v. Western Line Consolidated School District, 439 U.S. 410 (1979), is a United States Supreme Court decision on the free speech rights of public employees. The Court held unanimously in favor of a schoolteacher fired for her critical remarks in conversations with her principal. Justice William Rehnquist wrote the opinion, with a ...
Chalkboard scraping. Scraping a chalkboard (also known as a blackboard) with one's fingernails produces a sound and feeling which most people find extremely irritating. The basis of the innate reaction to the sound has been studied in the field of psychoacoustics (the branch of psychology concerned with the perception of sound and its ...
Identify possible conditions and treatment related to your symptoms. This tool does not provide medical advice. NEW: This symptom checker now includes the ability to select symptoms by body location. We hope this makes it easier for you to identify your symptoms and possible conditions. The tool also allows you to select multiple symptoms quickly.
The main types are: Drug-drug interaction. This is when a medication reacts with one or more other drugs. For example, taking a cough medicine ( antitussive) and a drug to help you sleep (sedative ...
Kidney disease is a common cause of a high potassium level. Either high or low potassium levels can cause heart problems. Low potassium can cause muscle cramps. You often have a blood test with ...
Cord blood banking is a process of collecting potentially lifesaving stem cells from the umbilical cord and placenta and storing them for future use. Stem cells are immature cells that can assume ...
Sinusitis: An infection in one of your sinuses. When pressure builds up behind your eyes, it can cause pain on one or both sides. Stye: This is a tender bump on the edge of your eyelid. It happens ...