22-letter words containing em
- accident and emergency — The accident and emergency is the room or department in a hospital where people who have severe injuries or sudden illness are taken for emergency treatment. The abbreviation A & E is also used.
- advertisement hoarding — a large flat structure on which advertisements can be posted, especially at the roadside
- alkaline earth element — any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table
- animal rights movement — a group of people who campaign for the rights of animals to be protected from exploitation and abuse by humans
- arm's-length agreement — a commercial transaction done in accordance with market values, disregarding any connection such as common ownership of the companies involved
- attributed file system — (storage) (AtFS) The basis of the Shape_VC toolkit. Cooperative work within projects is supported by a status model controlling visibility of version objects, locking, and "long transactions" for synchronising concurrent updates. The concept of object attributes provides a basis for storing management information with versions and passing this information between individual tools. This mechanism is useful for building integrated environments from a set of unrelated tools.
- basal body temperature — the lowest temperature the body reaches in the resting state, typically during sleep. It is usually measured on waking
- basic operating system — (operating system) (BOS) An early [when?] IBM operating system. According to folklore, BOS was the predecessor to TOS on the IBM 360 and it was IPL'd from a card reader. It may have been intended for very small 360's with no disks and limited tape drives. BOS died out really early [when?] as disks such as the 2311 and 2314 became common with the IBM 360, whereas disks had been a real luxury on the IBM 7090.
- bereavement counsellor — a person giving advice to bereaved people to help them cope with their grief
- bernoulli's lemniscate — Analytic Geometry. lemniscate.
- borel-lebesgue theorem — Heine-Borel theorem.
- boundary value problem — any of a series of problems occurring in the solution of a differential equation with boundary conditions.
- cadence design systems — (company) A company that sells electronic design automation software and services. See also Verilog.
- central african empire — a former name (1976–79) of Central African Republic.
- central nervous system — Your central nervous system is the part of your nervous system that consists of the brain and spinal cord.
- chemical sympathectomy — the chemical destruction of one or more parts of the sympathetic nervous system
- chemical-sympathectomy — sympathectomy (def 2).
- chief academic officer — an official in a university, college, or medical school who usually reports directly to the president, chancellor, rector, or vice chancellor
- complementary medicine — the treatment, alleviation, or prevention of disease by such techniques as osteopathy, homeopathy, aromatherapy, and acupuncture, allied with attention to such factors as diet and emotional stability, which can affect a person's wellbeing
- contract of employment — a written agreement between an employer and an employee, that, taken together with the rights of each under statute and common law, determines the employment relations between them
- d'alembert's principle — the principle that for a moving body the external forces are in equilibrium with the inertial forces; a generalization of Newton's third law of motion
- denotational semantics — (theory) A technique for describing the meaning of programs in terms of mathematical functions on programs and program components. Programs are translated into functions about which properties can be proved using the standard mathematical theory of functions, and especially domain theory. Compare axiomatic semantics, operational semantics, standard semantics.
- design system language — J. Gaffney, Evans & Sutherland 1976. Interpretive FORTH-like language for 3d graphics databases. Earliest forerunner of both Interpress and PostScript. Mentioned in PostScript Language Reference Manual, Adobe Systems, A-W 1985.
- digital control system — (systems) (DCS) A digital computer used for real-time control of a dynamic system, usually in an industrial environment, possibly as part of a Supervisory Control and Data Acquisition (SCADA) system. A DCS samples feedback from the system under control and modifies the control signals in an attempt to achieve some desired behaviour. Analysis of such digital-analogue feedback systems can involve mathematical methods such as difference equations, Laplace transforms, z transfer functions, state space models and state transition matrices.
- directory system agent — (DSA) The software that provides the X.500 Directory Service for a portion of the directory information base. Generally, each DSA is responsible for the directory information for a single organisation or organisational unit.
- dyadic systems limited — Dyalog Limited
- emergency road service — a form of motoring insurance that sends assistance to drivers when their vehicles break down on a journey; it is provided either by the national or regional automobile association or by a private insurance company
- emotional intelligence — empathy and social skills
- employers' association — a body of employers, usually from the same sector of the economy, associated to further the interests of member companies by conducting negotiations with trade unions, providing advice, making representations to other bodies, etc
- federal reserve system — a U.S. federal banking system that is under the control of a central board of governors (Federal Reserve Board) with a central bank (Federal Reserve Bank) in each of 12 districts and that has wide powers in controlling credit and the flow of money as well as in performing other functions, as regulating and supervising its member banks.
- field emission display — (hardware) (FED) A type of flat panel display in which field emitting cathodes bombard a phosphor coating causing it to emit light. A field emission display is similar to a cathode ray tube but only a few millimeters thick. They use a large array of fine metal tips or carbon nanotubes (which are the most efficient electron emitters known), to emit electrons through a process known as field emission. Many of these are behind each phosphor dot so FEDs do not display dead pixels like LCDs even if 20% of the emitters fail. Sony is researching FED because it is the flat-panel technology that comes closest to matching the picture of a CRT.
- graph rewriting system — An extension of a term rewriting system which uses graph reduction on terms represented by directed graphs to avoid duplication of work by sharing expressions.
- gross written premiums — Gross written premiums are the total revenue from a contract expected to be received by an insurer before deductions for reinsurance or ceding commissions.
- hemorrhagic septicemia — an acute infectious disease of animals, caused by the bacterium Pasteurella multocida, and characterized by fever, catarrhal symptoms, pneumonia, and general blood infection.
- home improvement grant — a government grant for house improvements such as insulation, adding a bathroom, or urgent repairs
- hydrogen embrittlement — the weakening of metal by the sorption of hydrogen during a pickling process, such as that used in plating
- incremental repetition — repetition, with variation, of a refrain or other part of a poem, especially a ballad.
- information management — The planning, budgeting, control and exploitation of the information resources in an organisation. The term encompasses both the information itself and the related aspects such as personnel, finance, marketing, organisation and technologies and systems. Information Managers are responsible for the coordination and integration of a wide range of information handling activities within the organisation. These include the formulation of corporate information policy, design, evaluation and integration of effective information systems and services, the exploitation of IT for competitive advantage and the integration of internal and external information and data.
- interpretive semantics — a school of semantic theory based on the doctrine that the rules that relate sentences to their meanings form an autonomous system, separate from the rules that determine what is grammatical in a language
- joint academic network — (JANET) The wide area network which links UK academic and research institutes. JANET is controlled by the Joint Network Team (JNT) and Network Executive (NE). It is an internet (a large number of interconnected sub-networks) that provides connectivity within the community as well as access to external services and other communities. The hub is the JANET subnetwork, a private X.25 packet-switched network that interconnects over 100 sites. At the majority of sites, local area networks (LANs) are connected to JANET allowing off-site access for the computers and terminals connected to these networks. The Coloured Book protocol architecture is used to support interactive terminal access to computers (for both character terminals and screen terminals), inter-host file transfers, electronic mail and remote batch job submission. See also JIPS, SuperJanet.
- knowledge-based system — (artificial intelligence) (KBS) A program for extending and/or querying a knowledge base. The related term expert system is normally used to refer to a highly domain-specific type of KBS used for a specialised purpose such as medical diagnosis. The Cyc project is an example of a large KBS.
- law enforcement agency — an organization responsible for enforcing the law, such as a police or sheriff department
- lempel-ziv compression — Substitutional compression schemes proposed by Jakob Ziv and Abraham Lempel in 1977 and 1978. There are two main schemes, LZ77 and LZ78. Lempel-Ziv Welch compression is a variant of LZ78.
- liberal democrat party — The Liberal Democrat Party is the third largest political party in Britain and the main centre party. It believes in improving the constitution and the voting system and in providing good welfare services.
- lynx real-time systems — A company in Los Gatos, California who distribute LynxOS. E-mail: <[email protected]>, <[email protected]>. Address: 16780 Lark Avenue, Los Gatos, CA 95030, USA. Telephone:: +1 (408) 354 7770, +1 (800) 255 LYNX. Fax: +1 (408) 354 7085.
- management consultancy — a company of professionals who are employed to help an organization improve efficiency and performance
- mathematical induction — induction (def 5).
- memory management unit — (hardware, memory management) (MMU, "Paged Memory Management Unit", PMMU) A hardware device or circuit that supports virtual memory and paging by translating virtual addresses into physical addresses. The virtual address space (the range of addresses used by the processor) is divided into pages, whose size is 2^N, usually a few kilobytes. The bottom N bits of the address (the offset within a page) are left unchanged. The upper address bits are the (virtual) page number. The MMU contains a page table which is indexed (possibly associatively) by the page number. Each page table entry (PTE) gives the physical page number corresponding to the virtual one. This is combined with the page offset to give the complete physical address. A PTE may also include information about whether the page has been written to, when it was last used (for a least recently used replacement algorithm), what kind of processes (user mode, supervisor mode) may read and write it, and whether it should be cached. It is possible that no physical memory (RAM) has been allocated to a given virtual page, in which case the MMU will signal a "page fault" to the CPU. The operating system will then try to find a spare page of RAM and set up a new PTE to map it to the requested virtual address. If no RAM is free it may be necessary to choose an existing page, using some replacement algorithm, and save it to disk (this is known as "paging"). There may also be a shortage of PTEs, in which case the OS will have to free one for the new mapping. In a multitasking system all processes compete for the use of memory and of the MMU. Some memory management architectures allow each process to have its own area or configuration of the page table, with a mechanism to switch between different mappings on a process switch. This means that all processes can have the same virtual address space rather than require load-time relocation. An MMU also solves the problem of fragmentation of memory. After blocks of memory have been allocated and freed, the free memory may become fragmented (discontinuous) so that the largest contiguous block of free memory may be much smaller than the total amount. With virtual memory, a contiguous range of virtual addresses can be mapped to several non-contiguous blocks of physical memory. In early designs memory management was performed by a separate integrated circuit such as the MC 68851 used with the Motorola 68020 CPU in the Macintosh II or the Z8015 used with the Zilog Z80 family of processors. Later CPUs such as the Motorola 68030 and the ZILOG Z280 have MMUs on the same IC as the CPU.
- mistress of ceremonies — a woman who directs the entertainment at a party, dinner, or the like.
- national semiconductor — (company) A semiconductor manufacturer, responsible for the SC/MP, National Semiconductor 16000 and National Semiconductor 32000 series of microprocessors.
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