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Polysomnography (PSG) is a multi-parameter type of sleep study [1] and a diagnostic tool in sleep medicine.The test result is called a polysomnogram, also abbreviated PSG.The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").
For instance, a Spanish map from 1548 depicts California as a peninsula, [8] while a 1622 Dutch map depicts California as an island. [citation needed] A 1626 Portuguese map depicts the land as a peninsula, [citation needed] while a 1630 British map depicts it as an island. [9] A French map from 1682 only shows the tip of the Baja Peninsula.
Map of California topography and geomorphic provinces California's major mountain ranges. California is a U.S. state on the western coast of North America.Covering an area of 163,696 sq mi (423,970 km 2), California is among the most geographically diverse states.
Module:Location map/data/USA California is a location map definition used to overlay markers and labels on an equirectangular projection map of the U.S. state of California. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
Electrode locations of International 10-20 system for encephalography recording. The 10–20 system or International 10–20 system is an internationally recognized method to describe and apply the location of scalp electrodes in the context of an EEG exam, polysomnograph sleep study, or voluntary lab research.
The town was named after Palermo, Sicily due to its excellent climate for growing olives.The first post office was established in 1888. [7] The area was home to a country club, two railroad stations, gold mining, a brick yard, library, general mercantile store, school and even a semi-pro baseball team.
USGS aerial imagery of Holland Tract. The Holland Tract is an island in the Sacramento–San Joaquin River Delta. [2] [3] It is part of Contra Costa County, California, and managed by Reclamation District 2025.
North Hollywood Medical Center was opened in 1952 as "Valley Doctors Hospital", a small private hospital with 160 beds and an emergency room. [3]The hospital was sold to Hyatt Medical and re-opened in 1973 as "Riverside Hospital", reflecting its location on Riverside Drive and beside the Los Angeles River, on the south bank of its concrete channel.