Does the "forbidden zone" for sleep onset influence morning shift sleep duration?

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<title>Does the "forbidden zone" for sleep onset influence morning shift sleep duration?</title>
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<title>Ergonomics</title>
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<namePart>Folkard, Simon</namePart>
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<namePart>Barton, Jane</namePart>
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<dateIssued encoding="marc">1993</dateIssued>
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<abstract displayLabel="Summary">The present study was designed to throw some light on the question as to whether night sleeps prior to a morning shift may be influenced by the forbidden zone and subsequent sleep gate</abstract>
<note type="statement of responsibility">Simon Folkard and Jane Barton</note>
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<topic>Ergonomía</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080588458">
<topic>Trabajo por turnos</topic>
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<topic>Tiempos de trabajo</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080577940">
<topic>Ritmo circadiano</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080553401">
<topic>Biorritmos</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080595388">
<topic>Condiciones sociales</topic>
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<title>Ergonomics</title>
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<publisher>London and Washington</publisher>
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<part>
<text>Vol. 36, nº 1-3, January-March 1993 ; p. 85-91</text>
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