Search: in
Partial census
Partial census in Encyclopedia Encyclopedia
  Tutorials     Encyclopedia     Videos     Books     Software     DVDs  
       
Encyclopedia results for Partial census

Partial census





Encyclopedia results for Partial census

  1. Partial

    Wiktionary partial Partial may refer to partial derivative , in mathematics , the partial derivative symbol, often read as partial partial function , in mathematics partial algorithm , in computer science Contract bridge glossary partial part score , in contract bridge Harmonic series music Partial partial wave , in acoustics and music disambig Long comment to avoid being listed on short pages cs Parci ln fr Partiel ...   more details



  1. Census

    is carried out by INSEE . Since 2004, a partial census has been carried out every year, and the results ...File Volkstelling 1925 Census.jpg 300px thumb Census taker visits a family living in a Mobile home caravan , Netherlands 1925 A census is the procedure of systematically acquiring and recording information ... sources census docs P&R Rev2.pdf Principles and Recommendations for Population and Housing ... language Latin origin during the Roman Republic , the census was a list that kept track of all adult males fit for military service. The census can be contrasted with sampling statistics sampling ... estimate . Census data is commonly used for research, business marketing , and planning, as well as a baseline for sampling surveys. Census counts are necessary to adjust samples to be representative ... from census enumerations. In some countries, census data are used to apportion electoral representation .... Normally the census response is made by a household, indicating details of individuals resident there. An important aspect of census enumerations is determining which individuals can be counted from ... to be on census day, their de facto residence, may not be the best place to count them. Where an individual ... born babies, refugees, people away on holiday, people moving home around census day, and people ... of census enumerations with other official sources of data. ref cite web url http unstats.un.org unsd censuskb20 KnowledgebaseArticle10408.aspx title Census Quality Evaluation considerations ... aspect of the census process is to evaluate the quality of the data. ref Leo Breiman 1994 . The 1991 Census Adjustment Undercount or Bad Data? , Statistical Science 9 4 , pp.458 475. ref Many countries use a post enumeration survey to adjust the raw census counts. ref World Population and Housing Census Programme 2010 http unstats.un.org unsd demographic standmeth handbooks Manual PESen.pdf ... estimation for animal populations. In census circles this method is called dual system enumeration ...   more details



  1. Partial integration

    Partial integration may refer to Integration by parts , a technique in mathematics Partial integration contract law , a situation that occurs when a contract contains only some of the terms to which the parties agree. disambig ...   more details



  1. Partial volume

    Partial volume may refer to Partial volume imaging Partial gas volume disambig Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ...   more details



  1. Partial permutation

    Multiple issues orphan March 2012 confusing June 2010 unreferenced May 2010 In combinatorics combinatorial mathematics , given a set S and two subsets U and V , a bijection from U to V is a partial permutation of S . Thus any permutation is a partial permutation with  U     V . Another way of looking at it is that a partial permutation on S is a partial function on S which can be extended to a permutation of S . Category Combinatorics Category Functions and mappings combin stub ...   more details



  1. Partial derivative

    calculus cTopic Multivariable calculus In mathematics , a partial derivative of a function mathematics ... to vary . Partial derivatives are used in vector calculus and differential geometry . The partial ... x, f x, f ,x , partial x f, text or frac partial f partial x math The partial derivative symbol is . The notation ... sup 2 sup . For the partial derivative at nowrap 1, 1, 3 that leaves y constant, the corresponding ... point on this surface, there are an infinite number of tangent line s. Partial differentiation ... to be math frac partial z partial x 2x y math So at nowrap 1, 1, 3 , by substitution, the slope is 3. Therefore math frac part z part x 3 math at the point. nowrap 1, 1, 3 . That is, the partial derivative ... math frac part f part y x,y x 2y. , math This is the partial derivative of f with respect to y . Here is a rounded d called the partial derivative symbol . To distinguish it from the letter d , is sometimes pronounced del or partial instead of dee . In general, the partial derivative of a function ... just as in the example above. This expression also shows that the computation of partial derivatives ... space R sup n sup e.g., on R sup 2 sup or R sup 3 sup . In this case f has a partial derivative f x sub j sub with respect to each variable x sub j sub . At the point a , these partial derivatives define the vector math nabla f a left frac partial f partial x 1 a , ldots, frac partial f partial ... math mathbf hat i , mathbf hat j , mathbf hat k math math nabla bigg frac partial partial x bigg mathbf hat i bigg frac partial partial y bigg mathbf hat j bigg frac partial partial z bigg mathbf ... e 2 , mathbf hat e 3 , dots , mathbf hat e n math math nabla sum j 1 n bigg frac partial partial x j bigg mathbf hat e j bigg frac partial partial x 1 bigg mathbf hat e 1 bigg frac partial partial x 2 bigg mathbf hat e 2 bigg frac partial partial x 3 bigg mathbf hat e 3 dots bigg frac partial partial x n bigg mathbf hat e n math Formal definition Like ordinary derivatives, the partial derivative ...   more details



  1. Partial plan

    Unreferenced date November 2006 In Automated planning and scheduling formal AI planning , a partial plan is a plan which specifies all actions that need to be taken, but does not specify an exact order for the actions as the order does not matter. It is the result of a Partial order planning partial order planner . Linearization A linearization of a partial order plan is a total order plan derived of the particular partial order plan. Example For example, a plan for baking a cake might start go to the store get eggs get flour get milk pay for all goods go to the kitchen This is a partial plan because the order for finding eggs, flour and milk is not specified, the agent can wander around the store reactive planning reactively accumulating all the items on its shopping list until the list is complete. See also Partial order planning Automated planning and scheduling Category Automated planning and scheduling Compu AI stub ...   more details



  1. Partial seizure

    Infobox Disease Name Partial seizure Image Caption DiseasesDB ICD10 ICD10 G 40 0 g 40 ICD10 G 40 2 g 40 ICD9 ICD9 345.4 ICD9 345.5 ICDO OMIM MedlinePlus 000697 eMedicineSubj eMedicineTopic MeshID D004828 Partial seizures also called focal seizures ref DorlandsDict seven 000095663 focal seizure ref and localized seizures are seizure s which affect only a part of the brain ref DorlandsDict seven 000095666 partial seizure ref at onset. ref name urleMedicine Stedman Medical Dictionary Lookup cite web url http www.emedicine.com asp dictionary.asp?keyword Partial seizure title eMedicine Stedman Medical Dictionary Lookup format work accessdate 2008 12 07 Dead link date November 2010 bot H3llBot . ref The brain is divided into two hemispheres, each consisting of four lobes the frontal, temporal, parietal and occipital lobes. In partial seizures the seizure is generated in and affects just one part ... Whatisepilepsy Seizures , Epilepsy Society Are all seizures the same. ref Partial seizures are split into two main categories simple partial seizure s and complex partial seizures . A new classification system for partial seizures has been described in the 18th Edition of Harrison s Principles of Internal Medicine released July 2011 . The new classification splits partial seizures into partial seizures with dyscognitive features and partial seizures without dyscognitive features . In simple partial seizures a small part of one of the lobes may be affected and the person remains conscious. This will often be a precursor to a larger seizure such as a complex partial seizure. When this is the case, the simple partial seizure is usually called an aura symptom aura . A complex partial ... lose consciousness. If a partial seizure spreads from one hemisphere to the other side of the brain ... well have a tonic clonic seizure . Partial seizures are common in temporal lobe epilepsy . See also Temporal lobe epilepsy Simple partial seizure Complex partial seizure God helmet References reflist ...   more details



  1. A Partial Print

    Infobox album See Wikipedia WikiProject Albums Name A Partial Print Type Album Artist Tiger Lou Cover Released 2008 10 28 Recorded ? Genre Indie rock Label Startracks Reviews It s a Trap Rating 10 10 http www.itsatrap.com ?n 26734 link Last album The Loyal br 2005 This album A Partial Print br 2008 A Partial Print is the third studio album by Tiger Lou . ref cite web url http www.itsatrap.com ?n 26734 publisher It s A Trap Scandinavian Music Journal title Tiger Lou  A partial print quote I m going to admit from the start that I had some difficulty with A partial print when I listened to it ref Track Listing ref Allmusic class album id r1456676 pure url yes AllMusic.com Track Listing ref The More You Give 3 44 The Less You Have To Carry 6 07 So Demure 5 11 Trust Falls 3 08 An Atlas of Those Our Own 4 52 Odessa 5 28 Trails of Spit 4 01 Coalitions 4 12 Crushed by a Crowd 3 53 A Partial Print 9 17 References references DEFAULTSORT Partial Print Category 2008 albums sv A Partial Print ...   more details



  1. Partial evaluation

    Not to be confused with partial application . Programming evaluation In computing , partial evaluation is a technique for several different types of optimization computer science program optimization by Specialization logic specialization . The most straightforward application is to produce new programs which run faster than the originals while being guaranteed to behave in the same way. More advanced uses include compiling by partially evaluating an interpreter with the program to be compiled as its input generating compilers by partially evaluating a partial evaluator with an interpreter for the source ... evaluating a partial evaluator with itself as its input. A computer program , prog , is seen as a mapping ... , the static data , is the part of the input data known at compile time. The partial evaluator transforms ... than the original program. The act of partial evaluation is said to residualize math prog math ... to run inside said interpreter, then partial evaluation of the interpreter with respect to this data ... local HOSC 12 4 pp381 391.pdf Partial Evaluation of Computation Process &ndash An Approach to a Compiler ... cite journal author Charles Consel and Olivier Danvy title Tutorial Notes on Partial Evaluation journal .... Gomard, and Peter Sestoft Partial Evaluation and Automatic Program Generation 1993 Book, full text available online. http partial eval.org partial eval.org a large Online Bibliography of Partial Evaluation Research . http www.brics.dk pepm99 1999 ACM SIGPLAN Workshop on Partial Evaluation and Semantics Based Program Manipulation PEPM 99 http osl.iu.edu tveldhui papers pepm99 C Templates as Partial Evaluation, 1999 ACM SIGPLAN Workshop on Partial Evaluation and Semantics Based Program Manipulation PEPM 99 http arxiv.org pdf cs.PL 9810010 C Templates as Partial Evaluation a different version including Catat pdf http people.csail.mit.edu gregs dynamic pe.html Applying Dynamic Partial Evaluation to dynamic, reflective programming languages DEFAULTSORT Partial Evaluation Category Compiler optimizations ...   more details



  1. Partial Answers

    italic title Infobox Journal title Partial Answers Journal of Literature and the History of Ideas cover Image Partial answers.gif editor Leona Toker discipline Literature , History language English abbreviation Partial Answ. publisher Johns Hopkins University Press country United States frequency Biannually history 2003 present openaccess impact impact year website http partialanswers.huji.ac.il link1 http muse.jhu.edu journals partial answers link1 name Online access link2 link2 name RSS atom JSTOR OCLC 166882797 LCCN CODEN ISSN 1565 3668 eISSN 1565 3668 Partial Answers Journal of Literature and the History of Ideas is a Peer review peer reviewed interdisciplinary academic journal that focuses on the study of literature and the history of ideas. The journal publishes articles on various national literatures including Hebrew language Hebrew , Yiddish language Yiddish , German language German , Russian language Russian , and predominantly English language English literature. It was named Best New Journal of 2004 by the http www.celj.org Council of Editors of Learned Journals . ref http www.celj.org best new journal CELJ Best New Journal ref The journal is published twice a year in January and June by the Johns Hopkins University Press . The current editor in chief is Leona Toker of the Hebrew University of Jerusalem . References reflist External links Official http partialanswers.huji.ac.il http www.press.jhu.edu journals partial answers Partial Answers on the JHU Press website http muse.jhu.edu journals partial answers Partial Answers at Project MUSE Category Literary magazines Category English language journals Category Publications established in 2003 Category Biannual journals Category Johns Hopkins University Press academic journals ...   more details



  1. Partial Password

    notability date December 2009 Partial Password is a mode of password authentication. By asking the user to enter only a few specific characters from their password ref cite web title What is partial password verification? accessdate 2011 03 03 work Co operative Bank url http ask.co operativebank.co.uk help customer services partial password ref , rather than the whole password, partial passwords help to protect the user from password theft. As only part of the password is revealed at once it becomes more difficult to obtain the password using techniques such as keystroke logging or Shoulder surfing computer security shoulder surfing . Verifying Partial Passwords It is good practice to not store passwords in cleartext , instead when checking a whole password it is common to store the result of passing the password to a cryptographic hash function . As the user doesn t supply the whole password it cannot be verified against a stored digest of the whole password. Some have suggested storing the digest of each combination of letters that could be requested but they note that this results in generating and storing a large amount of digests ref cite web title Partial Passwords and Keystroke Loggers accessdate 2011 03 03 url http www.plynt.com blog 2005 08 partial passwords and keystrok ref ref name sa pphow cite web title Partial Passwords How? url http www.smartarchitects.co.uk news 9 15 Partial Passwords How.html accessdate 2011 03 03 ref . A better solution in terms of storage space and security is using a secret sharing scheme ref name sa pphow . References Reflist Category Password authentication ...   more details



  1. Partial isometry

    In functional analysis a partial isometry is a linear map W between Hilbert spaces H and K such that the restriction of W to the orthogonal complement of its kernel algebra kernel is an isometry . We call the orthogonal complement of the kernel of W the initial subspace of W , and the range of W is called the final subspace of W . Any unitary operator on H is a partial isometry with initial and final subspaces being all of H . For example, In the two dimensional complex Hilbert space C sup 2 sup the matrix math begin bmatrix 0 & 1 0 & 0 end bmatrix math is a partial isometry with initial subspace math 0 oplus mathbb C subseteq mathbb C oplus mathbb C math and final subspace math mathbb C oplus 0 . math The concept of partial isometry can be defined in other equivalent ways. If U is an isometric map defined on a closed subset H sub 1 sub of a Hilbert space H then we can define an extension W of U to all of H by the condition that W be zero on the orthogonal complement of H sub 1 sub . Thus a partial isometry is also sometimes defined as a closed partially defined isometric map. Partial isometries are also characterized by the condition that W W or W W is a projection. In that case, both W W and W W are projections of course, since orthogonal projections are self adjoint, each orthogonal projection is a partial isometry . This allows us to define partial isometry in any C algebra as follows If A is a C algebra, an element W in A is a partial isometry if and only if W W or W W is a projection .... It is not hard to show that partial isometries are characterised by the equation math W WW W. math A pair of projections one of which is the initial projection of a partial isometry and the other a final ... Murray von Neumann theory of projections in a von Neumann algebra . Partial isometries and projections ... algebras , Springer, ISBN 0817640517 Mark V. Lawson 1998 . Inverse semigroups the theory of partial symmetries . World Scientific ISBN 9810233167 DEFAULTSORT Partial Isometry Category Operator theory ...   more details



  1. Partial hospitalization

    refimprove date January 2012 Partial hospitalization , also known as PHP from Partial Hospitalization Program , is a type of program used to treat mental illness and substance abuse . In partial hospitalization, the patient continues to reside at home, but commutes to a treatment center up to seven days a week. Since partial hospitalization focuses on overall treatment of the individual, rather than purely safety, the program is not used for acutely suicidal people. The pioneer of partial hospital programs, Dr. Albert E. Moll , ref The News and Courier Center Gives Day Mental Care , page 1. Charleston, SC, May 13, 1952. ref believed that some patients would be unable to be away from their families or from work and that these programs would reduce the cost of long term care. Partial hospitalization should not be confused with day treatment which is sometimes referred to as partial hospitalization. Partial hospitalization is provided on or in affiliation with a hospital. This separates them from partial care or day treatment which are either non profit or profit agencies not affiliated with a hospital. Treatment during a typical day may include group therapy , psychotherapy individual therapy ,and psychopharmacology psychopharmacological assessments and check ins. Programs are available for the treatment of alcoholism and substance abuse problems, Alzheimer s disease , anorexia nervosa anorexia and bulimia , clinical depression depression , bipolar disorder , anxiety disorder s, schizophrenia ... Medicaid. Currently, many providers are moving away from the partial hospitalization model of day ..., some people have objected to the term partial hospitalization itself, since hospitalization for mental ... for a few minutes to determine whether they pose a threat. Many patients in partial hospitalization ... to the implication that a partial hospitalization program is one step away from actual hospitalization. Notes references See also Deinstitutionalization DEFAULTSORT Partial Hospitalization Category ...   more details



  1. Partial application

    Not to be confused with partial evaluation . In computer science , partial application or partial function application refers to the process of fixing a number of arguments to a function, producing another function of smaller arity . Given a function math scriptstyle f colon X times Y times Z to N math , we might fix or bind the first argument, producing a function of type math scriptstyle text partial f colon Y times Z to N math . Evaluation of this function might be represented as math f partial 2, 3 math . Note that the result of partial function application in this case is a function that takes two arguments. Motivation Intuitively, partial function application says if you fix the first parameter computer science argument s of the function, you get a function of the remaining arguments . For example, if function div stands for the division operation x y , then div with the parameter x fixed at 1 i.e. div 1 is another function the same as the function inv that returns the multiplicative inverse of its argument, defined by inv y 1 y . The practical motivation for partial application is that very often the functions obtained by supplying some but not all of the arguments to a function ... . Partial application makes it easy to define these functions, for example by creating a function that represents ... form by default. Supplying fewer than the total number of arguments is referred to as partial application ... and code papply code to perform currying and partial application explicitly. This might incur a greater ... sup partial application, currying and uncurrying can be defined as code papply  code a × ... www.cis.upenn.edu bcpierce sf Poly.html lab97 Partial Application , http www.cis.upenn.edu bcpierce ... wiki Partial function application Partial function application on Rosetta code. http www.haskell.org haskellwiki Partial application Partial application at Haskell Wiki http www.haskell.org haskellwiki ... node 30 The dangers of being too partial comp sci stub prog lang stub Category Functional programming ...   more details



  1. Partial function

    Distinguish2 partial function of a multilinear map align right Image Partial function.svg thumb 200px An example of a partial function that is not a total function. Image Total function.svg thumb 200px An example of a partial function that is also a total function. In mathematics , a partial function from X to Y is a function mathematics function X Y , where X is a subset of  X . It generalizes .... Partial functions are often used when the exact domain mathematics domain , X , is not known ... 26 is undefined. Domain of a partial function There are two distinct meanings in current mathematical usage for the notion of the domain mathematics domain of a partial function. Most mathematicians, including ... the domain of a partial function f X Y to be X , and refer to X as the domain of definition . Occasionally, a partial function with domain X and codomain Y is written as f X Y , using an arrow with vertical stroke. A partial function is said to be injective or surjective when the total function given by the restriction of the partial function to its domain of definition is. A partial function .... An injective partial function may be inverse relation inverted to an injective partial function, and a partial function which is both injective and surjective has an injective function as inverse ... total is to suggest that it is a special case of a partial function . For example, when considering ... must equal the domain of math g math . Discussion and examples The first diagram above represents a partial ... when viewed as a function from the reals to themselves, but it is a partial function. If the domain ... as a partial function math f mathbb N times mathbb N to mathbb N math math f x,y x y math It is only defined when math x ge y math . Bottom type In some automated theorem proving systems a partial function ... uses this to map proofs and computer programs to each other. In computer science a partial function ... language where function parameters are statically typed , a function may be defined as a partial ...   more details



  1. Partial word

    A partial word is a String computer science string that may contain a number of do not know or do not care symbols i.e. placeholders in the string where the symbol value is not known or not specified. More formally, a partial word is a partial function math u 0, ldots, n 1 rightarrow A math where math A math is some finite alphabet. If u k is not defined for some math k in 0, ldots, n 1 math then the unknown element at place k in the string is called a hole . In regular expression s following the POSIX standard a hole is represented by the metacharacter . . For example, aab.ab.b is a partial word of length 8 over the alphabet A a , b in which the fourth and seventh characters are holes. ref http www.uncg.edu mat reu index.html Algorithmic Combinatorics on Words REU Bot generated title ref See also String computer science String References references Category Combinatorics on words Category String computer science Comp sci stub ...   more details



  1. Partial index

    In Relational database management system databases , a partial index , also known as filtered index is an Index database index which has some condition applied to it so that it includes a subset of Row database row s in the Table database table . This allows the index to remain small, even though the table may be rather large, and have extreme selectivity. Suppose you have a transaction table where entries start out with STATUS A active , and then may pass through other statuses P for pending, W for being worked on before reaching a final status, F , at which point it is no longer likely to be processed again. In PostgreSQL, a useful partial index might be defined as create index partial status on txn table status where status in A , P , W This index would not bother storing any of the millions of rows that have reached final status, F , and would allow queries looking for transactions that still need work to efficiently search via this index. Similarly, a partial index can be used to index only those rows where a column is not null, which will be of benefit when the column usually is null. create index partial object update on object table updated on where updated on is not null This index would allow the following query to read only the updated tuples select from object table where updated on is not null order by updated on It is not necessary that the condition be the same as the index ... create index partial salary on employee age where salary 2100 Support In Microsoft SQL ... Guidelines publisher Microsoft TechNet ref Partial indexes have been supported in PostgreSQL since ... Enable partial indexes Martijn van Oosterhout publisher PostgreSQL ref MySQL as of version 5.4 does not support partial indexes. ref cite web url http bugs.mysql.com bug.php?id 4990 accessdate 2009 ... ref In MySQL, the term partial index is sometimes used to refer to prefix indexes, where only a truncated ... For Partial Indexes DEFAULTSORT Partial Index Category Database management systems Category PostgreSQL ...   more details



  1. Partial discharge

    In electrical engineering , partial discharge PD is a localised dielectric breakdown of a small portion ... glow or brush discharge in air, partial discharges within solid insulation system are not visible ... in solid epoxy insulation or bubbles in transformer oil . Protracted partial discharge can ... materials. File Partial discharge.svg thumb right A partial discharge within solid insulation ..., attenuated by the voltage divider network Cx, Cy, Cz in parallel with the bulk capacitance Cb Partial ... humidity. Overhead line insulators use air as their insulation medium. Partial discharge equivalent ... of the sample. Partial discharge currents When partial discharge is initiated, high frequency transient ... of the high frequency pulses can identify the existence and location of partial discharge. Discharge detection and measuring systems With the partial discharge measurement, the dielectric condition ... tan delta measurement allows detection of water trees, partial discharge measurement is suitable ... and appropriate maintenance and repair measures may be planned and organized in advance. Partial discharge ... or lead covered paper insulated cable. Partial discharge measurement is routinely carried ... , transformer s and gas insulated switchgear . Partial discharge measurement system A partial discharge ... to reduce background noise from the power supply a partial discharge detector PC software for analysis The principle of partial discharge measurement A number of discharge detection schemes and partial ... century. Partial discharge currents tend to be of short duration and have rise times in the nanosecond .... The usual way of quantifying partial discharge magnitude is in pico coulomb s. The intensity of partial ... the partial discharge measurement using a method referred to as time domain reflectometry TDR allows the location of insulation irregularities. They are displayed in a partial discharge mapping format. A phase related depiction of the partial discharges provides additional information, useful for the evaluation ...   more details



  1. Partial current

    In electrochemistry , partial current is defined as the electric current associated with anode anodic or cathode cathodic half of the electrode chemical reaction reaction . Depending on the electrode half reaction, one can distinguish two types of partial current cathodic partial current I sub c sub called also cathodic current is the flow of electrons from the electrode surface to a species in solution anodic partial current I sub a sub called also anodic current is the flow of electrons into the electrode from a species in solution. The cathodic and anodic partial currents are defined by IUPAC ref name iupac http goldbook.iupac.org P04407.html ref . The partial Current density current densities i sub c sub and i sub a sub are the ratios of partial currents respect to the electrode areas A sub c sub and A sub a sub i sub c sub I sub c sub A sub c sub i sub a sub I sub a sub A sub a sub The sum of the cathodic partial current density i sub c sub positive and the anodic partial current density i sub a sub negative gives the net current density i ref name cwru http electrochem.cwru.edu ed dict.htm Electrochemistry Dictionary and Encyclopedia ref i i sub c sub i sub a sub In the case of the cathodic partial current density are equal to the anodic partial current density for example, in a corrosion process ref B. Elsener, http www.surface.mat.ethz.ch education courses surfaces and interfaces chapter11 Corrosion and durability of metals , p. 252. ref , the net current density on the electrode is zero ref name cwru i sub eq sub i sub c,eq sub i sub a,eq sub 0 When more than one reaction occur on an electrode simultaneously, then the total electrode current can be expressed as ref name iupac math I Sigma I a,i Sigma I c,i math where the index i refers to the particular reactions. Notes references References Bard, A.J. and Faulkner L.R. Electrochemical Methods Fundamentals and Applications 2nd ed. , 2001 John Wiley & Sons Inc. See also Exchange current density Category Electrochemistry ...   more details



  1. Partial melting

    Partial melting occurs when only a portion of a solid is melted. For mixed substances, such as a rock containing several different mineral s or a mineral that displays solid solution , this melt can be different from the bulk composition of the solid. Partial melting occurs where the solidus chemistry solidus and liquidus temperatures are different. For single minerals this can happen when they exhibit solid solution, for example in olivine s between iron and magnesium . In rocks made up of several different minerals, some will melt at lower temperatures than others. Partial melting is an important consideration in geology with respect to the chemical Igneous differentiation differentiation of crust geology crustal rocks . Virtually all rocks on Earth derive from material from the interior of the earth that has been partially melted. ref http www.geo.ua.edu volcanology lecture notes files partial melting.html Partial Melting ref The main places where partial melting occurs are subduction zones, mid ocean ridge s and hotspot geology hotspots . In all these places partial melting is often associated with volcanism , although some melts do not make it to the surface. Partial melts are thought to play an important role in enriching old parts of the continental lithosphere in incompatible element s. ref Cite journal doi 10.1093 petrology egn048 pages egn048 last Gibson first Sally A. coauthors Jacqueline Malarkey, Jason A. Day title Melt Depletion and Enrichment beneath the Western Kaapvaal Craton Evidence from Finsch Peridotite Xenoliths journal Journal of Petrology accessdate 2009 05 22 date 2008 10 22 url http petrology.oxfordjournals.org cgi content abstract egn048v1 volume 49 issue 10 ref Partial melts produced at depth move upwards due to the compaction of the surrounding ... reprint 144 2 299 ref Gallery Gallery File Partial Melting Phase Diagram.svg Melting of a substance ... B sub the whole solid has melted. Image Partial melting asthenosphere EN.svg Diagram showing the physical ...   more details



  1. Partial capo

    angle to ensure they will remain fretted. A partial capo is a type of a capo designed to capo ... clamp some of the strings, and this is usually called a partial capo, which offer similar types ... voicings. Though you will most commonly find partial capos used in standard tuning, creating simulated ... with other full and partial capos. A number of the partial capo manufacturers incorrectly call them ... one partial capo, the http www.thirdhandcapo.com Third Hand Capo , and now there are about 15 types ... a spring lever to allow temporary fretting of some notes that lie under the capo. Origin of the Partial ... detailing the probable surfacing of the partial capo idea in Europe in the early 19th century, but that seems to have died out and is likely unconnected to contemporary partial capo use. Modern use ... and 1970s indicating that some people may have started to use some basic kinds of partial capos ... Reid s contribution to the partial capo cannot be overstated. He has pioneered most of the known ..., and tens of thousands of partial capos at his concerts, by mail and in stores nationwide. He ... spanning 25 albums of published, composed and recorded guitar work using a variety of partial capos .... http www.partialcapo.com capo books.htm A New Frontier in Guitar about the partial capo, detailing 25 ways to use a partial capo, which at that time consisted only of the Third Hand. Reid recorded 2 albums in 1982 and 1983 in Washington DC, which were the first commercial recordings to use the partial capo, and he published the Duck Soup Guitar book in 1982 that was the first published use of the partial ... Guitar Magic followed in 1983, and was the first book of solo guitar arrangements for partial capo ... on using the partial capo for beginning guitar. Guitarist Al Petteway played bass on the 2nd ... partial capo work in recent years. Rick Watson also played on that album, and was one of the first artists to record with a partial capo. Reid s circle of friends widened when he moved to New ...   more details



  1. Partial pressure

    In a mixture of ideal gas es, each gas has a partial pressure which is the pressure which the gas would ... of the partial pressures of each individual gas in the mixture. In chemistry , the partial pressure of a gas in a mixture of gases is defined as above. The partial pressure of a gas dissolved in a liquid is the partial pressure of that gas which would be generated in a gas phase in equilibrium with the liquid at the same temperature. The partial pressure of a gas is a measure of thermodynamic activity of the gas s molecule s. Gases will always flow from a region of higher partial pressure ..., and react according to their partial pressures, and not according to their concentration s in gas mixtures ..., is set by the partial pressure of oxygen alone. This is true across a very wide range of different ... s law of partial pressures main Dalton s law The partial pressure of an ideal gas in a mixture is equal ... of a mixture of ideal gases is equal to the sum of the partial pressures of the individual gases ... Dalton s Law of Partial Pressures ref For example, given an ideal gas mixture of nitrogen N sub ... of the gas mixture align right math p mathrm N 2 math align left partial pressure of nitrogen N sub 2 sub align right math p mathrm H 2 math align left partial pressure of hydrogen H sub 2 sub align right math p mathrm NH 3 math align left partial pressure of ammonia NH sub 3 sub Ideal gas mixtures Ideally the ratio of partial pressures is the same as the ratio of molecules. That is, the mole ... s partial pressure or the mole unit moles of the component math x mathrm i frac p mathrm i p frac n mathrm i n math and the partial pressure of an individual gas component in an ideal gas can ... component in a gas mixture align right math p mathrm i math align left partial pressure of any individual ... ref Partial volume Amagat s law of additive volume The partial volume of a particular gas is the volume .... It can be approximated both from partial pressure and molar fraction ref name biophysics200 Page ...   more details



  1. Partial agonist

    context date December 2011 File Agonist 2.png thumb Agonists Partial agonists such as buspirone , aripiprazole , buprenorphine , or clozapine norclozapine bind and activate a given receptor, but have only partial Intrinsic activity efficacy at the receptor relative to a full agonist. They may also be considered ligands which display both agonistic and antagonistic effects when both a full agonist and partial agonist are present, the partial agonist actually acts as a competitive antagonist , competing with the full agonist for receptor occupancy and producing a net decrease in the receptor activation observed with the full agonist alone. ref Principles and Practice of Pharmacology for Anaesthetists By Norton Elwy Williams, Thomas Norman Calvey Published 2001 Blackwell Publishing ISBN 0632056053 ref Clinically partial agonists can activate receptors to give a desired submaximal response when inadequate amounts of the endogenous ligand are present, or they can reduce the overstimulation of receptors when excess amounts of the endogenous ligand are present. ref cite journal author Zhu BT title Mechanistic explanation for the unique pharmacologic properties of receptor partial agonists journal Biomed. Pharmacother. volume 59 issue 3 pages 76 89 year 2005 pmid 15795100 doi 10.1016 j.biopha.2005.01.010 ref See also Beta blocker Intrinsic sympathomimetic activity Intrinsic sympathomimetic activity of beta blocker Beta blockers Competitive antagonist Inverse agonist Mixed agonist antagonist References reflist Pharmacology pharmacology stub Category Pharmacology fr Agoniste partiel pt Agonista parcial sr Parcijalni agonist zh ...   more details



  1. Partial veil

    of Agaricus campestris showing the role and evolution of a partial veil Partial veil is a mycology ..., found on the lower surface of the Pileus mycology cap . A partial veil, in contrast to a universal veil , extends from the Stipe mycology stem surface to the Pileus mycology cap edge. The partial ... edge. In some mushrooms, both a partial veil and a universal veil may be present. ref name Arora.p16 The term partial veil is synonymous with inner veil to differentiate it from the outer , or universal ... fungi, the partial veil extends from the stem surface to the cap margin and shields the gills ... of the partial veil is an aid to identification of mushrooms. ref name Arora.p16 Arora 1986 , p. 16. ref Some fruit bodies may have both a universal and partial veil, others may have only one or the other, while many lack both types of veils. The partial veil may be membranous or cobwebby, and may have multiple layers. Various adjectives are commonly used to describe the texture of partial veils ... , with a slimy consistency. Some mushrooms have partial veils which are evanescent , which are so thin ... Others may leave a persistent annulus mushroom annulus ring . Occasionally, the partial veil adheres ... The partial veil of some species, like this Stropharia ambigua , may form an appendiculate cap margin ... like, fragile partial veil of some mushrooms, especially those in the genus Cortinarius , are known ... arvensis , have a partial veil that resembles a cogwheel . ref name Miller2006 Mycologists Alexander ... body of Armillaria hinnulea expands, the partial veil remains as a ring on the stem. align right ... a partial veil that is made of two layers of tissue, although the two layers are not clearly distinct ... in the laboratory. He determined that the partial veil originates from the tissue lying outside the annular cavity the area containing the delicate developing hymenium and enclosed by the partial ... of the cap and the surface of the stem. The partial veil increases in size as tension is applied to it from ...   more details




Articles 1 - 25 of 205477          Next


Search   in  
Search for Partial census in Tutorials
Search for Partial census in Encyclopedia
Search for Partial census in Videos
Search for Partial census in Books
Search for Partial census in Software
Search for Partial census in DVDs
Search for Partial census in Store


Advertisement




Partial census in Encyclopedia
Partial census top Partial census

Home - Add TutorGig to Your Site - Disclaimer

©2011-2013 TutorGig.info All Rights Reserved. Privacy Statement