An algorithm is an effective method that can be expressed within a finite amount of space and time and in a well-defined formal language for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state. The transition from one state to the next is not necessarily deterministic; some algorithms, known as randomized algorithms, incorporate random input.
In relation to logic-based and artificial neural network-based clinical decision support system, which are also computer applications to the medical decision making field, algorithms are less complex in architecture, data structure and user interface. Medical algorithms are not necessarily implemented using digital computers. In fact, many of them can be represented on paper, in the form of diagrams, nomographs, etc.
The original form of trade, barter, saw the direct exchange of goods and services for other goods and services. Barter is trading things without the use of money. Later one side of the barter started to involve precious metals, which gained symbolic as well as practical importance. Modern traders generally negotiate through a medium of exchange, such as money. As a result, buying can be separated from selling, or earning. The invention of money (and later credit, paper money and non-physical money) greatly simplified and promoted trade. Trade between two traders is called bilateral trade, while trade between more than two traders is called multilateral trade.
Trade exists due to the specialization and division of labor, in which most people concentrate on a small aspect of production, trading for other products. Trade exists between regions because different regions may have a comparative advantage (perceived or real) in the production of some trade-able commodity, or because different regions' size may encourage mass production. As such, trade at market prices between locations can benefit both locations.
Trade was a highly successful, pioneering and influential gaynightclub started in 1990 by Laurence Malice. Trade was unlike any other club at the time as it opened from 4am until 1pm on Sundays at Turnmills, Clerkenwell Road, London. The club was touted as "the original all night bender". The door policy was firm but fair: "You don't have to be gay or a member to get in, but your attitude and look will count".
Early Years 1990 - 1995
Trade quickly grew in popularity as other clubs at the time such as Heaven, G-A-Y and The Fridge closed at around 02:00-03:00 Sunday mornings, an hour or so before Trade opened at 03.00 Therefore, clubbers were able to go straight on to the club.
At the time many guys went cruising in the parks after leaving other clubs. The name 'Trade' and the opening hours was to encourage guys to go to the club as a safer alternative.
Turnmills was the first club in the UK to be given a 24-hour "Music & Dance" licence. This was gained after Laurence Malice had for a long period of time tried to convince Mr Newman that there was a need for people to be able to party in a safe environment after 3am in the morning.
Due to this licensing advantage, the venue's role was crucial to the success of Trade.
Trade was listed as one of "the world's best secret art galleries" in 2011 by Alexander Farquharson of Nottingham Contemporary.
Trade shares gallery space at One Thoresby Street, Nottingham.
Trade has exhibited the artwork of many artists including;
Stuart Sherman, Wasteland Twinning, Jaap Blonk, The Bongoleeros, Vile Plumage, W>A>S>P>S,Paula Roush (with Stewart Home),Phillip Henderson,David Sherry, Robin Deacon, Pyramidd.biz, Mermaid and Monster, Jackie Berridge, Tim Hattrick, Zachary Formwalt, Hannah Conroy, Katy Woods, Eastside Projects, Kelly Large,Beacon, Olivia Plender and Patrick Staff, Bubblebyte, Yelena Popova,Grandad Hill, Ewoud Van Rijn, Iva Kontic,Olaf Breuning, David Blandy and DVVID, M-E-X-I-C-O, Alex Stevenson, Robert Ashley, Reactor, Karin Kihlberg and Reuben Henry, Elisa Pône, Katie Davies,Richard Paul, David SherryMark McGowan (performance artist), Joseph Beuys, Rotterdam VHS Festival, Mark Essen, Ben Woodeson,Oliver Sutherland, Jemma Egan, Tomas Chaffe, Abigail Reynolds, Sarah Doyle, Phillip Henderson, Endless Supply, Artur Zmijewski