Gain or GAIN may refer to:

Science and technology

Gain (electronics) In electronics, gain is a measure of the ability of a two-port electrical network, circuit (often an amplifier) to increase the Electric power, power or amplitude of a Signal (electrical engineering), signal from the input to the output port by a ...

, an electronics and signal processing term *

Antenna gain In electromagnetics, an antenna's gain is a key performance parameter which combines the antenna's directivity and radiation efficiency. The term ''power gain'' has been deprecated by IEEE. In a transmitting antenna, the gain describes how ...

Gain (laser) In laser physics, gain or amplification is a process where the medium transfers part of its energy to the emitted electromagnetic radiation, resulting in an increase in optical power. This is the basic principle of all lasers. Quantitatively, ''gain ...

, the amplification involved in laser emission *

Gain (projection screens) Gain is a property of a projection screen, and is one of the specifications quoted by projection screen manufacturers. Interpretation The number that is typically measured is called the peak gain at zero degrees viewing axis, and represents the ...

Information gain in decision trees In information theory and machine learning, information gain is a synonym for ''Kullback–Leibler divergence''; the amount of information gained about a random variable or signal from observing another random variable. However, in the context of ...

, in mathematics and computer science *

GAIN domain The GAIN domain (G-protein-coupled receptor (GPCR) autoproteolysis-inducing domain) is a protein domain found in a number of cell surface receptors, including adhesion-GPCRs and polycystic kidney disease proteins PKD1 and PKD2. The domain is invo ...

, a protein domain *

Learning rate In machine learning and statistics, the learning rate is a tuning parameter in an optimization algorithm that determines the step size at each iteration while moving toward a minimum of a loss function. Since it influences to what extent newly ac ...

, a tuning parameter in stochastic approximation methods, also known as gain

Health

Primary and secondary gain Primary gain and secondary gain, and more rarely tertiary gain, are terms used in medicine and psychology to describe the significant subconscious psychological motivators patients may have when presenting with symptoms. It is important to note ...

, psychological mechanisms that may underlie an illness *

Global Appraisal of Individual Needs The Global Appraisal of Individual Needs (GAIN) is a family of evidence-based instruments used to assist clinicians with diagnosis, placement, and treatment planning. The GAIN is used with both adolescents and adults in all kinds of treatment prog ...

, a set of psychological assessment instruments *

Global Alliance for Improved Nutrition The Global Alliance for Improved Nutrition (GAIN) is a non-profit foundation based in Geneva, Switzerland. GAIN was developed at the UN 2002 Special Session of the General Assembly on Children. GAIN’s actions include improving the consumption ...

, a Swiss Foundation working in the field of malnutrition *

Generating Antibiotic Incentives Now The Food and Drug Administration Safety and Innovation Act of 2012 (FDASIA) is a piece of American regulatory legislation signed into law on July 9, 2012. It gives the United States Food and Drug Administration (FDA) the authority to collect user ...

, a piece of American legislation

People

Gain (singer) Son Ga-in (; born September 20, 1987), known mononymously as Gain, is a South Korean singer, actress and entertainer, best known as a member of the South Korean girl group Brown Eyed Girls. Having debuted with her home group earlier in 2006, G ...

, a South Korean entertainer * Gain, anglicised form of Indian surname

Gayen Gayen, sometimes anglicised as Gain, is a Bengali surname found in the Indian subcontinent, mainly in the Indian states of West Bengal, Odisha and Assam. In Bengali, the title ''Gayen'' (গায়েন) referred to anyone involved in the med ...

Other uses

Gain (accounting) In financial accounting (CON 8.4), a gain is when the market value of an asset exceeds the purchase price of that asset. The gain is unrealized until the asset is sold for cash, at which point it becomes a realized gain. This is an important distin ...

, the increase of net profit * ''Gain'' (novel), a novel by American author Richard Powers * ''Gain'' (EP), an album by Sadie *

Gain (detergent) Procter & Gamble (P&G) is an American multinational consumer goods corporation with a portfolio of brands. Brands with net sales of more than US$1 billion annually As of 2015, the company stated it owned the following brands with net annual sales ...

, a brand of detergent *

GAIN Capital GAIN Capital is a US-based provider of online trading services, headquartered in Bedminster, New Jersey. The company provides market access and trade execution services in foreign exchange, contracts for difference (CFDs) and exchange-based prod ...

, a US-based forex trading company * Greater Avenues to Independence program, a precursor to the American

CalWORKs The California Work Opportunities and Responsibility to Kids (CalWORKs) program is the California welfare implementation of the federal welfare-to-work Temporary Assistance for Needy Families (TANF) program that provides cash aid and services to eli ...

welfare program

Science and technology

Health

People

Other uses

See also