control


control
1. (v.) To regulate, restrain, correct, restore to normal. 2. (n.) Ongoing operations or programs aimed at reducing a disease. 3. (n.) Members of a comparison group who differ in disease experience or allocation to a regimen from the subjects of a study. 4. (v). In statistics, to adjust or take into account extraneous influences. [Mediev. L. contrarotulum, a counterroll for checking accounts, fr. L. rotula, dim. of rota, a wheel]
- autogenous c. regulation by the action of a gene product on the gene that codes for that product.
- automatic gain c. (AGC) a feature of some hearing aid s that reduces amplification at high-input intensity levels.
- aversive c. c. of the behavior of another individual by use of psychologically noxious means; e.g., attempting to force better study habits by withholding a child's allowance, or withholding sexual contact unless the partner complies with a request.
- biologic c. c. of living organisms, including vectors and reservoirs of disease, by using their natural enemies (predators, parasites, competitors).
- birth c. 1. restriction of the number of offspring by means of contraceptive measures; 2. projects, programs, or methods to c. reproduction, by either improving or diminishing fertility.
- idiodynamic c. nervous impulses from the medulla that preserve the normal trophic condition of the muscles.
- own controls a method of experimental c. in which the same subjects are used in both experimental and c. conditions.
- positive c. regulation of an enzyme activity by an activator of that enzyme. Also, regulation via induction of a specific protein's biosynthesis or activation of a protein's processing.
- quality c. the c. of laboratory analytical error by monitoring analytical performance with c. sera and maintaining error within established limits around the mean c. values, most commonly ±2 SD.
- reflex c. nerve impulses transmitted to the muscles to maintain normal reflex action.
- social c. the influence on the behavior of a person exerted by other persons or by society as a whole; e.g., through appropriate social norms, ostracism, or the criminal law.
- stimulus c. the use of conditioning techniques to bring the target behavior of an individual under environmental c.. See classical conditioning.
- synergic c. impulses transmitted from the cerebellum regulating the muscular activity of the synergic units of the body.
- time-varied gain c. (TGC) SYN: time-gain compensation.
- tonic c. nerve impulses that maintain a normal tonus or level of activity in muscle or other effector organs.
- vestibulo- equilibratory c. nerve impulses transmitted from the semicircular canals, saccule, and utricle that serve to maintain the equilibrium of the body.

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con·trol kən-'trōl vb, con·trolled; con·trol·ling vt
1) to incorporate suitable controls in <a controlled experiment>
2) to reduce the incidence or severity of esp. to innocuous levels <\control an insect population> <a vaccine for controlling outbreaks of cholera> vi to incorporate controls in an experiment or study used with for <failure to \control for the difference in the rate of smoking between the two groups (Howard Bauchner )(et al)>
control n
1) an act or instance of controlling something <\control of acute intermittent porphyria>
2) one that is used in controlling something: as
a) an experiment in which the subjects are treated as in a parallel experiment except for omission of the procedure or agent under test and which is used as a standard of comparison in judging experimental effects called also control experiment
b) one (as an organism, culture, or group) that is part of a control

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con·trol (kən-trōlґ) [Fr. contrÑ„le a register] 1. the governing or limitation of certain objects or events. 2. a standard against which experimental observations may be evaluated; see negative c. and positive c. 3. a patient or group differing from that under study (the treated or case group) by lacking the disease or by having a different or absent treatment or regimen; the controls and case or treated subjects usually otherwise have certain similarities to allow or enhance comparison between them. 4. in psychiatry, the process of consciously restraining and regulating impulses and suppressing instincts and affects.

Medical dictionary. 2011.

Synonyms:

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  • control — con·trol vt con·trolled, con·trol·ling 1: to exercise restraining or directing influence over esp. by law 2: to have power or authority over precedent control s the outcome in this case 3: to have controlling interest in control n …   Law dictionary

  • control — sustantivo masculino 1. Examen o comprobación de personas o cosas cuyo conocimiento interesa: Realicé un control de matemáticas. La directora lleva el control de los alumnos que faltan a clase. 2. Vigilancia: Ese preso está sometido a fuerte… …   Diccionario Salamanca de la Lengua Española

  • CONTROL-M — is batch scheduling software produced by BMC Software, originally written for mainframes but also available for distributed computing platforms including Unix, Windows, Linux and OpenVMS environments. BMC Software claims that CONTROL M is the… …   Wikipedia

  • control — CONTRÓL, controale, s.n. 1. Analiză permanentă sau periodică a unei activităţi, a unei situaţii etc. pentru a urmări mersul ei şi pentru a lua măsuri de îmbunătăţire. ♢ Lucrare de control = lucrare scrisă prin care se verifică periodic… …   Dicționar Român

  • Control — puede referirse: a la tecla Control de los teclados informáticos; al control remoto o mando a distancia, es un dispositivo electrónico usado para realizar una operación remota (o telemando) sobre una máquina; a una muestra testigo; al capítulo… …   Wikipedia Español

  • Control — Con*trol , n. [F. contr[^o]le a counter register, contr. fr. contr r[^o]le; contre (L. contra) + r[^o]le roll, catalogue. See {Counter} and {Roll}, and cf. {Counterroll}.] 1. A duplicate book, register, or account, kept to correct or check… …   The Collaborative International Dictionary of English

  • control — ► NOUN 1) the power to influence people s behaviour or the course of events. 2) the restriction of an activity or phenomenon. 3) a means of limiting or regulating something: exchange controls. 4) a device by which a machine is regulated. 5) the… …   English terms dictionary

  • Control — ist der Originaltitel eines Spielfilms von Tim Hunter aus dem Jahr 2004, siehe Control – Du sollst nicht töten der Titel eines Spielfilms von Giuliano Montaldo, siehe Control (1987) der Titel eines Spielfilms von Anton Corbijn, siehe Control… …   Deutsch Wikipedia

  • control — [kən trōl′] vt. controlled, controlling [ME countrollen < Anglo Fr contreroller < Fr contrerole < ML contrarotulus, a counter, register < L contra, against + rotulus: see ROLL] 1. Obs. to check or verify (payments, accounts, etc.) by… …   English World dictionary

  • control — (Del fr. contrôle). 1. m. Comprobación, inspección, fiscalización, intervención. 2. Dominio, mando, preponderancia. 3. Oficina, despacho, dependencia, etc., donde se controla. 4. puesto de control. 5. Regulación, manual o automática, sobre un… …   Diccionario de la lengua española

  • Control — Con*trol , v. t. [imp. & p. p. {Controlled}; p. pr. & vb. n. {Controlling}.] [F. contr[^o]ler, fr. contr[^o]le.] [Formerly written {comptrol} and {controul}.] 1. To check by a counter register or duplicate account; to prove by counter statements; …   The Collaborative International Dictionary of English


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