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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").
Sign with text: Sömnförsök pågår (Sleep study in progress), room for sleep studies in NÄL hospital, Sweden. A sleep study is a test that records the activity of the body during sleep. There are five main types of sleep studies that use different methods to test for different sleep characteristics and disorders.
Hindustani, the lingua franca of Northern India and Pakistan, has two standardised registers: Hindi and Urdu.Grammatical differences between the two standards are minor but each uses its own script: Hindi uses Devanagari while Urdu uses an extended form of the Perso-Arabic script, typically in the Nastaʿlīq style.
Located in the Hindi Belt, the Central Zone includes the Dehlavi (Delhi) dialect (one of several called 'Khariboli') of the Hindustani language, the lingua franca of Northern India that is the basis of the Modern Standard Hindi and Standard Urdu literary standards. In regards to the Indo-Aryan language family, the coherence of this language ...
Pimsleur Language Programs (/ ˈ p ɪ m z l ər /) is an American language learning company that develops and publishes courses based on the Pimsleur method. It is a division of publishing company Simon & Schuster. Pimsleur offers courses for 50 languages with English as the source language, and 14 ESL courses. [1]
Hindustani is the lingua franca of northern India and Pakistan, and through its two standardized registers, Hindi and Urdu, a co-official language of India and co-official and national language of Pakistan respectively. Phonological differences between the two standards are minimal.
With effort, learners can study any language by comparing their recordings to the same story in a language they know. [7] The list of self-study programs, below, shows the number of languages taught by each program, the name of the program, and the number of different languages used for instruction.
Polysomnography, the "gold standard" method for sleep tracking that requires attaching electrodes and monitors to the patient as they sleep, was developed in the late 1950s. [ 5 ] [ 6 ] [ 7 ] It is considered by sleep researchers as providing the most accurate sleep data, however, it is an expensive, often uncomfortable experience for patients ...