Description
An expert is somebody who has a broad and deep competence in terms of knowledge, skill and experience through practice and education in a particular field. Informally, an expert is someone widely recognized as a reliable source of technique or skill whose faculty for judging or deciding rightly, justly, or wisely is accorded authority and status by peers or the public in a specific well-distinguished domain. An expert, more generally, is a person with extensive knowledge or ability based on research, experience, or occupation and in a particular area of study. Experts are called in for advice on their respective subject, but they do not always agree on the particulars of a field of study. An expert can be believed, by virtue of credentials, training, education, profession, publication or experience, to have special knowledge of a subject beyond that of the average person, sufficient that others may officially (and legally) rely upon the individual's opinion on that topic. Historically, an expert was referred to as a sage. The individual was usually a profound thinker distinguished for wisdom and sound judgment. In specific fields, the definition of expert is well established by consensus and therefore it is not always necessary for individuals to have a professional or academic qualification for them to be accepted as an expert. In this respect, a shepherd with 50 years of experience tending flocks would be widely recognized as having complete expertise in the use and training of sheep dogs and the care of sheep. Another example from computer science is that an expert system may be taught by a human and thereafter considered an expert, often outperforming human beings at particular tasks. In law, an expert witness must be recognized by argument and authority. Research in this area attempts to understand the relation between expert knowledge, skills and personal characteristics and exceptional performance. Some researchers have investigated the cognitive structures and processes of experts. The fundamental aim of this research is to describe what it is that experts know and how they use their knowledge to achieve performance that most people assume requires extreme or extraordinary ability. Studies have investigated the factors that enable experts to be fast and accurate.Comment may refer to: Comment (linguistics) or rheme, that which is said about the topic (theme) of a sentence Bernard Comment (born 1960), Swiss writer and publisherControl may refer to:A country is a distinct territorial body or political entity (i.e. a nation). It is often referred to as the land of an individual's birth, residence or citizenship. A country may be an independent sovereign state or part of a larger state, as a non-sovereign or formerly sovereign political division, a physical territory with a government, or a geographic region associated with sets of previously independent or differently associated people with distinct political characteristics. It is not inherently sovereign. Countries can refer both to sovereign states and to other political entities, while other times it can refer only to states. For example, the CIA World Factbook uses the word in its "Country name" field to refer to "a wide variety of dependencies, areas of special sovereignty, uninhabited islands, and other entities in addition to the traditional countries or independent states".The largest country in the world by geographical area is Russia, while the most populous is China, followed by India, the United States, and Indonesia. The newest United Nations (UN) member is South Sudan. Admission of new members requires the approval of the General Assembly; since 1991, UN membership has been reserved to sovereign states. Microstates are sovereign countries having a very small population or very small land area, usually both; examples of microstates include Vatican City, Monaco and San Marino.Period | 4 Jul 2020 |
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Media contributions
1Media contributions
Title 2015, Expert comment: Poor Birth Control In The Third World Countries Country/Territory United Kingdom Date 4/07/20 Persons Gerta Flemmich
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