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The history of testing, inspection and certification services spans back several centuries. In the late 19th century, following the advent of the Industrial Revolution and the considerable risks involved with high-pressure steam boilers, specialized institutions emerged across Europe which carried out periodical inspections of such vessels to assess their overall condition as a precautionary ...
Information and communications technology (ICT) is an extensional term for information technology (IT) that stresses the role of unified communications [1] and the integration of telecommunications (telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage and audiovisual, that enable users to access, store, transmit, understand and ...
Tachycardia-induced cardiomyopathy (TIC) is a disease where prolonged tachycardia (a fast heart rate) or arrhythmia (an irregular heart rhythm) causes an impairment of the myocardium (heart muscle), which can result in heart failure. [1][5] People with TIC may have symptoms associated with heart failure (e.g. shortness of breath or ankle ...
A tic is a sudden and repetitive motor movement or vocalization that is not rhythmic and involves discrete muscle groups. [ 1 ][ 2 ][ 3 ] It is typically brief and may resemble a normal behavioral characteristic or gesture. [ 4 ] Tics can be invisible to the observer, such as abdominal tensing or toe crunching.
In Western business cultures, a handshake when meeting someone is a signal of initial cooperation. Tit for tat is an English saying meaning "equivalent retaliation". It is an alteration of tip for tap "blow for blow", [1] first recorded in 1558. [2] It is also a highly effective strategy in game theory.
Information technology (IT) is a set of related fields that encompass computer systems, software, programming languages, and data and information processing, and storage. [ 1 ] IT forms part of information and communications technology (ICT). [ 2 ] An information technology system (IT system) is generally an information system, a communications ...
The UL enterprise[4] is a global private safety company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions. Established in 1894, the UL enterprise was founded as the Underwriters' Electrical Bureau (a bureau of the National Board of Fire Underwriters), [5 ...
Ticker symbol. Stock telegraph ticker machine invented by Thomas Edison. A ticker symbol or stock symbol is an abbreviation used to uniquely identify publicly traded shares of a particular stock or security on a particular stock exchange. Ticker symbols are arrangements of symbols or characters (generally Latin letters or digits) which provide ...