control+study

См. также в других словарях:

• Nested case-control study — A nested case control study is a variation of a case cohort study in which only a subset of controls from the cohort are compared to the incident cases. In a case cohort study, all incident cases in the cohort are compared to a random subset of… …   Wikipedia

• Изучение Случаев Заболевания Контрольное (Case Control Study) — сравнение группы людей, страдающих тем или иным заболеванием, с представителями другой группы, в которой данное заболевание отсутствует, для выявления колебаний их фона (например, влияние сигаретного дыма на тех, кто умер от рака легкого, и на… …   Медицинские термины

• Study design — A study design is an analytic approach to conduct an epidemiological investigation, such as a clinical trial. Types of designSome of the most popular designs are sorted below, with the ones at the top being the most powerful at reducing observer… …   Wikipedia

• Control engineering — Control systems play a critical role in space flight Control engineering or Control systems engineering is the engineering discipline that applies control theory to design systems with predictable behaviors. The practice uses sensors to measure… …   Wikipedia

• Control chart — One of the Seven Basic Tools of Quality First described by Walter A. Shewhart …   Wikipedia

• Control reconfiguration — is an active approach in control theory to achieve fault tolerant control for dynamic systems [1]. It is used when severe faults, such as actuator or sensor outages, cause a break up of the control loop, which must be restructured to prevent… …   Wikipedia

• Control Risks Group — Control Risks is a global risk and strategic consulting firm specialising in political, security and integrity risk. Control Risks’ aim is to help its clients to understand and manage the risks of operating in complex or hostile environments.… …   Wikipedia

• 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… …   Medical dictionary

• control system — Means by which a set of variable quantities is held constant or caused to vary in a prescribed way. Control systems are intimately related to the concept of automation but have an ancient history. Roman engineers maintained water levels in… …   Universalium

• control theory — Field of applied mathematics relevant to the control of certain physical processes and systems. It became a field in its own right in the late 1950s and early 60s. After World War II, problems arising in engineering and economics were recognized… …   Universalium

• control — I. verb (controlled; controlling) Etymology: Middle English countrollen, from Anglo French contrerouler, from contreroule copy of an account, audit, from Medieval Latin contrarotulus, from Latin contra + Medieval Latin rotulus roll more at roll… …   New Collegiate Dictionary