Cepheid Stars Are Useful to Astronomers as Indicators of

question 44

Multiple Choice

Cepheid stars are useful to astronomers as indicators of

• A) white dwarf star behavior.
• B) distance,particularly to stars in our Galaxy and to nearby galaxies.
• C) stars with very high-speed motion.
• D) the mechanics of eclipsing variable stars.

Recognize the legal protections provided to employees under FMLA.

Understand the concept and implications of spoofing in electronic communications.

Recognize the legal restrictions on polygraph and lie detector tests in the workplace.

Identify the circumstances under which postaccident testing is considered and its relevance to safety-sensitive positions.

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Definitions:

Cocktail Party Effect

The ability to focus one's auditory attention on a particular stimulus while filtering out a range of other stimuli, as in a noisy environment.

Spotlight Metaphor

A model that describes how attention is focused on specific aspects of the visual field, selecting certain details for processing while ignoring others.

Nature Of Attention

The aspect of cognitive processing that allows for focus on specific stimuli while ignoring others.

Shadowing Performance

The process of mimicking verbal material immediately as it is heard, a method used to explore the mechanisms of auditory attention and speech processing.