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Zeeman Effect: The splitting of spectral lines when an external magnetic field is applied.

Kostinsky Effect: Development effect in which dense image points are inclined to move apart, relative to each other, and light image points to move together, relative to each other. This occurs because develo . . . View Full Definition

Lake Effect Snow: Snow showers that are created when cold dry air passes over a large warmer lake, such as one of the Great Lakes, and picks up moisture and heat.

January Effect: Each year, the stock market tends to increase slightly in value between December 31 and the end of the first week of January. Known as the January Effect, this rise starts when investors sel . . . View Full Definition

Inverse Barometer Effect: The inverse response of sea level to changes in atmospheric pressure. A static reduction of 1.005 mb in atmospheric pressure will cause a stationary rise of 1 cm in sea level.

International Fisher Effect: States that the interest rate differential between two countries should be an unbiased predictor of the future change in the spot rate.

Limited Effects Theory: A type of communication theory (e.g., social learning theory, vicarious catharsis theory) that regards media as having conditional influences on the viewer: due to intervening variables, the . . . View Full Definition

Low Price-Earnings Ratio Effect: The tendency of portfolios of stocks with a low price-earnings ratio to outperform portfolios of stocks with high price-earnings ratios.

Metal Oxide Semiconductor Field Effect Transistor ( Mosfet): A type of large output transistor used in the final stages of many power amplifiers, and commonly found in most car and home amplifiers today. These field-effect transistors are controlled b . . . View Full Definition

Memory Effect: The life of a battery may be gradually shortened if it is recharged before it is completely discharged. Memory effect most commonly occurs with Nickel Cadmium batteries are less of a problem . . . View Full Definition