24-letter words containing y, e, l, p
- programmable array logic — (hardware) (PAL) A family of fuse-programmable logic integrated circuits originally developed by MMI. Registered or combinatorial output functions are modelled in a sum of products form. Each output is a sum (logical or) of a fixed number of products (logical and) of the input signals. This structure is well suited for automatic generation of programming patterns by logic compilers. PAL devices are programmed by blowing the fuses permanently using overvoltage. Today, more complex devices based on the same original architecture are available (CPLD's for Complex PLD's) that incorporate the equivalent of several original PAL chips. PAL chips are, however, still popular due to their high speed.
- psychopathic personality — an antisocial personality characterized by the failure to develop any sense of moral responsibility and the capability of performing violent or antisocial acts
- rapid eye movement sleep — REM sleep.
- rational-emotive therapy — a form of therapy in which a patient is asked to reject irrational attitudes and assumptions in order to deal effectively with stressful situations.
- referential transparency — (programming) An expression E is referentially transparent if any subexpression and its value (the result of evaluating it) can be interchanged without changing the value of E. This is not the case if the value of an expression depends on global state which can change value. The most common example of changing global state is assignment to a global variable. For example, if y is a global variable in: f(x) { return x+y; } g(z) { a = f(1); y = y + z; return a + f(1); } function g has the "side-effect" that it alters the value of y. Since f's result depends on y, the two calls to f(1) will return different results even though the argument is the same. Thus f is not referentially transparent. Changing the order of evaluation of the statements in g will change its result. We could make f above referentially transparent by passing in y as an argument: f(x, y) = x+y Similarly, g would need to take y as an argument and return its new value as part of the result: g(z, y) { a = f(1, y); y' = y+z; return (a + f(1, y'), y'); } Referentially transparent programs are more amenable to formal methods and easier to reason about because the meaning of an expression depends only on the meaning of its subexpressions and not on the order of evaluation or side-effects of other expressions. We can stretch the concept of referential transparency to include input and output if we consider the whole program to be a function from its input to its output. The program as a whole is referentially transparent because it will always produce the same output when given the same input. This is stretching the concept because the program's input may include what the user types, the content of certain files or even the time of day. If we do not consider global state like the contents of files as input, then writing to a file and reading what was written behaves just like assignment to a global variable. However, if we must consider the state of the universe as an input rather than global state then any deterministic system would be referentially transparent! See also extensional equality, observational equivalence.
- responsibility allowance — payment made to somebody who has special responsibilities
- self-fulfilling prophecy — a prophecy that comes true because of the expectation that it will
- sequentially compact set — a set in which every sequence has a subsequence that converges to a point of the set.
- single european currency — the official currency, also known as the Euro, of some of the members of the European Union
- slop oil recovery system — A slop oil recovery system is a method and the equipment used for cleaning and disposing of mixtures of oil, chemicals, and water from various sources in a refinery or oilfield.
- socialist workers' party — one of the biggest extreme left wing parties in Britain
- telephony user interface — (communications) (TUI) Either a software interface to telephony (e.g. a phone-capable PC) or a DTMF-based interface to software (e.g. voicemail).
- tetraethyl pyrophosphate — a colorless to amber, hygroscopic, poisonous liquid, (C 2 H 5) 4 P 2 O 7 , used as an insecticide and as a rodenticide.
- the long-term unemployed — people who have no job and have not worked for a long time
- the realm of possibility — If you say that something is not beyond the realms of possibility, you mean that it is possible.
- to cramp someone's style — If someone or something cramps your style, their presence or existence restricts your behaviour in some way.
- to keep your eyes peeled — If you tell someone to keep their eyes peeled for something, you are telling them to watch very carefully for it.
- transpersonal psychology — a branch of psychology or psychotherapy that recognizes altered states of consciousness and transcendent experiences as a means to understand the human mind and treat psychological disordrs.
- tricyclic antidepressant — pertaining to or embodying three cycles.
- visual component library — (programming) VCL A application framework library for Microsoft Windows and Borland Software Corp.'s Delphi and C++Builder rapid application development software. VCL was originally designed for Delphi but is now also used for C++Builder. This replaces OWL Object Windows Library as Borland's Windows C++ framework of choice. VCL encapsulates the C-based Win32 API into a much easier to use, object-oriented form. Like its direct rival, Microsoft Foundation Class Library (MFC), VCL includes classes to create Windows programs. The VCL component class can be inherited to create new VCL components, which are the building blocks of Delphi and C++Builder applications. VCL components are somewhat in competition with ActiveX controls, though a VCL wrapper can be created to make an ActiveX control seem like a VCL component.
- what are you playing at? — If you ask what someone is playing at, you are angry because you think they are doing something stupid or wrong.
- wired equivalent privacy — (networking, standard) (WEP) IEEE 802.11:1999. A cryptographic privacy algorithm, based on the RC4 encryption engine, used to provide confidentiality for 802.11 wireless networks. WEP is intended to provide roughly the same level of confidentiality for wireless data as a wired LAN (Ethernet), which is NOT protected by encryption. WEP is often wrongly expanded as "Wireless Encryption Protocol". WEP is a protocol that provides encryption used on wireless networks but that's not what it stands for.
- yellow-bellied sapsucker — a woodpecker, Sphyrapicus varius, of eastern North America, having a red patch on the forehead and black and white plumage with a pale-yellow abdomen, and feeding on sap from trees.