domain
domain 1. In general, a sphere of control, influence, or concern.
2. See
function,
relation,
category. See also
range.
3. of a network. Part of a larger network. A domain is usually defined in terms of some property, such as that part of the network that is under the jurisdiction of a single management body (a
management domain), or where all the network addresses are assigned by a single controlling authority (a
naming domain). See also
domain name server.
4. In the
relational model, a set of possible values from which the actual values in any column of a table (relation) must be drawn.
5. In
denotational semantics, a structured set of mathematical entities in which meanings for programming constructs can be found. The idea first arose in the work of Dana Scott, who with Christopher Strachey pioneered this mathematical approach to programming language semantics. The approach focuses on
fixed-point theorems. Scott required domains to be
complete lattices, but this has been simplified through a great deal of mathematical research. There are now many kinds of domains, but a commonly used one is the
Scott–Ershov domain, which is a consistently complete algebraic cpo (complete
partial ordering). For such mathematical structures a fine theory of constructing new domains from old and solving fixed-point equations has been developed. The
domain theory has many applications in finding semantics for programming and specification languages, and approximating data types. Mathematically the theory is closely linked to topology and algebra.
6. See
protection domain.
Cite this article
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Hex Signs: Pennsylvania Dutch Barn Symbols and Their Meaning
Magazine article from: Journal of American Folklore; 10/1/2001; ; 700+ words
; Hex Signs: Pennsylvania Dutch Barn Symbols and...incarnation in 1989 (E. P. Dutton), this work on hex signs and their meaning originally accompanied...their religious attitudes; they then define hex signs, their subject, as "geometrical decorations...
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Hex-Rays Announces First Release of Decompiler.
PR Newswire; 9/17/2007; 670 words
; ...Belgium, Sept. 17 /PRNewswire/ -- Hex-Rays sprl of Belgium announced today the...difficult area of reverse engineering, Hex-Rays is making available their technology...in the security and compliance sectors. Hex-Rays sprl CEO, Mr. Ilfak Guilfanov...
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Selecting hex keys.
Magazine article from: Assembly; 10/1/1990; 700+ words
; Selecting Hex Keys Because all hex keys look very much alike, the importance of their quality is often overlooked. A high-quality hex key can minimize the risk of personal injury and offer reliable performance...
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Trans Hex International Expands into Indonesia.
Business Wire; 8/30/1996; 700+ words
; ...BUSINESS WIRE)--Aug. 30, 1996--TRANS HEX(CANADIAN DEALER NETWORK:THXI) Trans Hex International Limited, which is listed on the...East Kalimantan, Indonesia. In addition, Trans Hex has undertaken to arrange 100 percent of the development...
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Putting a Hex on trout
Newspaper article from: Sun-Journal Lewiston, Me.; 7/2/2006; 700+ words
; ...is, my experience with Hex hatches can be counted...hand. Still, one July Hex encounter stands out in...just before dark, the Hexes began to bust through...hesitation. Then the Hexes disappeared as fast as...most of us misname the Hex, calling it a Green Drake...
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Couple's colorful hex signs win customers' hearts
Magazine article from: Central Penn Business Journal; 7/21/1997; ; 700+ words
; ...figures. There are hex signs on many of...mugs and baskets. Hexes aren't all the...meanings behind hex sign symbols, Bill painted hexes with hearts, spades...informed Bill about hex symbolism. So...continued to paint more hexes, this time using...
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Indomin Resources Limited Trans Hex To Farm Into Offshore Sunda Shelf Diamond Project.
Business Wire; 8/30/1996; 700+ words
; ...INDOMIN RESOURCES LTD. (VSE:IRL) Trans Hex International, a subsidiary of South Africa...East Kalimantan. In addition, Trans Hex has undertaken to arrange 100 percent of...currently at bulk testing stage. Trans Hex will manage the project while it is sole...
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SACRED SIGNS A West Corinth artist creates hex signs for clients nationwide
Newspaper article from: Bangor Daily News Bangor, ME; 11/7/2009; ; 700+ words
; ...ready to continue working on her latest hex sign, which is going to a client in Salt...covering of some kind whether she's making a hex sign for a client who believes as Starwalker believes - that the hex signs hold power and energy - or whether...
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Credence Introduces Kalos 2 Hex System for Flexible, Full Test Coverage of Memory Devices.
PR Newswire; 3/10/2005; 700+ words
; ...industry, today announced the introduction of Kalos 2 Hex(TM) (K2 Hex), an integrated circuit (IC) test system for current...volatile memory and embedded memory devices. The K2 Hex contains enhanced logic testing capability and advanced...
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Under starry sky, hex hatch helps deliver trout.(Knight Ridder Newspapers)
Newspaper article from: Knight Ridder/Tribune News Service; 7/18/2001; ; 700+ words
; ...because trout binging on Hexes can mean some pretty hot...to hold its annual "Hex Camp" on the Gunflint...using float tubes. "The Hex is the biggest mayfly...North Country," calls Hexes the "elegant giants...last week chasing the Hex hatch on trout lakes along...
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Hex (or Hexerai)
Encyclopedia entry from: Encyclopedia of Occultism and Parapsychology
Hex (or Hexerai) General term for witchcraft spells among the Pennsylvania...and healing in the area and were the forerunners of the later hex meisters. The standard textbook of hex spells and folk remedies used by hex meisters, The Long Lost Friend...
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hex
Book article from: The Columbia Encyclopedia, Sixth Edition
hex witchcraft or one who works it. The word is...especially to the Pennsylvania Dutch country. The hex can be worked by either sex, but more commonly by a man, usually an amateur or professional hex "doctor." Such a person is thought to be...
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hex pad
Book article from: A Dictionary of Computing
hex pad A keypad with 16 keys that are labeled 0–9, A–F so that they correspond to hexadecimal notation .
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hex-
Book article from: A Dictionary of Nursing
hex- ( hexa- ) prefix denoting six.
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Lassiter, Rhiannon 1977-
Book article from: Something About the Author
...YA writer. The "Hex" trilogy takes place...century London. Hexes are people who have...A group of young Hexes who have evaded capture...installment in the series, Hex, Raven and her brother...nonstop" and dubbed Hex "a good start for...finds the group of Hexes in league with ...
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