About the nucleic acid binding protein in eukaryotes the bacterial porin Protein K porin Protein K is a human protein found in the cell nucleus that binds to pre messenger RNA mRNA as a component of heterogeneous ribonucleoprotein particle s. The simian homology biology homolog is known as protein H16 . Both proteins bind to single stranded DNA as well as to RNA and can stimulate the activity of RNA polymerase II , the protein responsible for most transcription genetics gene transcription . The relative affinities of the proteins for DNA and RNA vary with solution conditions and are inversely correlated, so that conditions promoting strong DNA binding result in weak RNA binding. ref name Gaillard Gaillard C, Cabannes E, Strauss F. 1994 . Identity of the RNA binding protein K of hnRNP particles with protein H16, a sequence specific single strand DNA binding protein. Nucleic Acids Res 22 20 4183 4186. ref RNA binding protein domains in other proteins that are similar to the RNA binding domain of protein K are called K homology or KH domains. Protein K has been the subject of study related to colorectal cancer , in which an RNA editing event inducing the gene expressionexpression of an isoform containing a point mutation was found to be specific to cancerous cells. ref name Klimek Klimek Tomczak K, Mikula M, Dzwonek A, Paziewska A, Karczmarski J, Hennig E, Bujnicki JM, Bragoszewski P, Denisenko O, Bomsztyk K, Ostrowski J. 2006 . Editing of hnRNP K protein mRNA in colorectal adenocarcinoma and surrounding mucosa. Br J Cancer 94 4 586 92. ref Human proteins containing KH domain AKAP1 ANKHD1 ANKRD17 ASCC1 BICC1 DDX43 DDX53 DPPA5 FMR1 FUBP1 FUBP3 FXR1 FXR2 HDLBP HNRPK IGF2BP1 IGF2BP2 IGF2BP3 KHDRBS1 KHDRBS2 KHDRBS3 KHSRP KRR1 MEX3A MEX3B MEX3C MEX3D NOVA1 NOVA2 PCBP1 PCBP2 PCBP3 PCBP4 PNO1 PNPT1 QKI SF1 gene SF1 TDRKH References references Category Proteins protein stub ... more details
Proteinexpression is a subcomponent of gene expression . It consists of the stages after DNA has been ... . Citation needed date April 2011 Proteinexpression is commonly used by proteomics researchers to denote .... Proteinexpression systems are very widely used in the life sciences, biotechnology and medicine ... expression systems particularly DNA polymerase for PCR, reverse transcriptase for RNA analysis and restriction endonuclease s for cloning. There are also significant medical applications for expression systems, notably the production of human insulin to treat diabetes . Expression systems Commonly used proteinexpression systems include those derived from bacteria , ref name pmid10508629 cite journal author Baneyx F title Recombinant proteinexpression in Escherichia coli journal Curr. Opin ... proteinexpression in Pichia pastoris journal Mol. Biotechnol. volume 16 issue 1 pages 23 52 year ... for proteinexpression in insect and mammalian cells journal Nat. Biotechnol. volume 23 issue 5 pages ... a rapid mammalian proteinexpression system journal Protein Expr. Purif. volume 40 issue 2 pages ... S, Berger W, Grusch M title A bicistronic baculovirus vector for transient and stable proteinexpression ..., bacterial expression has the advantage of easily producing large amounts of protein, which is required ... reading cite book title ProteinExpression A Practical Approach author Higgins SJ, Hames BD year ... ProteinExpression Technologies Current Status and Future Trends author Baneyx F year 2004 publisher Horizon Bioscience location Norfolk, UK isbn 0954523253 pages 548 Category Gene expressionprotein ... used expression systems are cell based and may be defined as the combination of an expression vector ... in a host cell, that is, produce proteins at a high level . ref name urlDefinition expression system from Online Medical Dictionary cite web url http cancerweb.ncl.ac.uk cgi bin omd?expression system title Definition expression system author authorlink coauthors date 1997 11 13 format work Online ... more details
Infobox protein family Symbol HHA Name HHA image PDB 1jw2 EBI.jpg width caption solution structure of hemolysin expression modulating protein hha from escherichia coli. ontario centre for structural proteomics target ec0308 1 72 northeast structural genomics target et88 Pfam PF05321 Pfam clan InterPro IPR007985 SMART PROSITE MEROPS SCOP 1ir6 TCDB OPM family OPM protein CAZy CDD In molecular biology, the haemolysin expression modulating protein family is a protein family family of proteins . This family consists of haemolysin gene expressionexpression modulating protein Hha from Escherichia coli and its Enterobacteria enterobacterial homologues, such as YmoA from Yersinia enterocolitica , and RmoA encoded on the R100 plasmid . These protein proteins act as modulators of bacteria bacterial gene expression . Members of this family act in conjunction with members of the H NS family, participating in the thermoregulation of different virulence factor s and in plasmid transfer. ref name pmid11890540 cite journal author Madrid C, Nieto JM, Juarez A title Role of the Hha YmoA family of proteins in the thermoregulation of the expression of virulence factors journal Int. J. Med. Microbiol. volume 291 issue 6 7 pages 425 32 year 2002 month February pmid 11890540 doi url ref Hha, along with the chromatin associated protein H NS, is involved in the regulation of expression genetics expression of the toxin alpha haemolysin in response to osmolarity and temperature . ref name pmid11790731 cite ... proteinprotein interaction between members of the enterobacterial Hha YmoA and H NS families ... pmc 139531 doi url ref YmoA modulates the Gene expressionexpression of various virulence factors ... December pmid 9851035 doi url ref The HHA protein family family of proteins display striking similarity to the oligomerisation protein domain domain of the H NS proteins. References reflist InterPro content IPR007985 Category Protein families ... more details
Wiktionarypar expressionExpression may refer to Symbolic expressionExpression language , a thought communicated by language Expression mathematics , a finite combination of symbols that are well formed according to applicable rules Expression programming , an instruction to execute something that will return a value Regular expression , a means of matching strings of text in computing Dynamics music Relative loudness Expression marks , music notating the musical dynamics Bodily expression The Breastfeeding expression of milk Emotional expression , verbal and non verbal behaviour that communicates emotion Facial expression , a movement of the face that conveys emotional state Gene expression , the process by which information from a gene is used in biochemistry Product names Expression album Expression album , an album by John Coltrane Expression crew , a breakdance crew. Expressions , the annual magazine of Vidyalankar Institute of Technology , Mumbai, India Microsoft Expression Studio , a digital media and graphic design suite Ex pression College for Digital Arts , a college in Emeryville, California for the entertainment industry disambig de Expression fr Expression ko it Espressione nl Expressie ja pl Ekspresja ksh U drock ru fi Lauseke sv Uttryck ... more details
Citations missing date August 2010 S expression s or sexp s for symbolic expression are List computing list based data structures that represent semi structured data . An S expression may be a nested list ... end , which represents the Boolean logic Boolean expression commonly written as nowrap begin code ... element of every S expression is an operator and any remaining elements are treated as data. This is called ... and written representations of data, the term S expression in casual conversation often refers to the written representation of an S expression. Other uses of S expressions are in Lisp derived ... by M expression s, but the first implementation of Lisp was an interpreter of S expression encodings ..., arrays, character strings, and Symbol Lisp symbols are all atoms. An S expression may be a list ... depth. In Lisp, S expression lists are constructed from small data structures called cons pair s, written ... as S expressions code milk juice honey marmalade code is a two element S expression whose elements ... is typical. Line breaks newline characters usually qualify as separators. A non atomic S expression ... code a dotted list e.g., code a b c . d code is defined recursively as an s expression in which the second ... , or a non atomic s expression in which the second element is a list. Example This is a simple context free grammar written as an s expression Gazdar Melish, Natural Language Processing in Lisp source ... can be read in Lisp using the function READ. READ reads the textual representation of an s expression and returns Lisp data. The function PRINT can be used to output an s expression. The output ... is a valid s expression, but not a valid Lisp program, since Lisp uses prefix notation and a floating point number here 1.0 is not valid as an operation the first element of the expression . An S expression ... language Self evaluating forms and quoting quoted S expression , in this case code quote x ... for their S expression syntax. These include Common Lisp ANSI standard document ANSI INCITS 226 1994 ... more details
Infobox musical artist name The Expression image caption image size background group or band alias origin ... members past members Refer Member list The Expression were an Australian synthpop band formed in Sydney ... ARIA Charts charts in mid 1988. ref History The Expression formed in Sydney during 1981, although ... work Australian Rock Database title The Expression url http hem.passagen.se honga database e expression.html ..., New South Wales Sydney and formed The Expression, along with Stephen Manassah bass guitar and Steve ... Life , Machinations band Machinations . Mushroom Records signed The Expression to a recording ... album, The Expression , recorded in Sydney and mixed in New York , was produced by Charles Fisher ... The Expression work Allmusic publisher Macrovision accessdate 8 May 2009 ref Radio Birdman , Hoodoo ... and soon after the live line up of the band splintered, leaving the future of The Expression up in the air. Haran and Dowling opted to continue to work under The Expression banner, and recruited several ... by Ben Rogan Sade band Sade and Wally Brill. ref cite web url http www.discogs.com Expression Conscience release 953649 title The Expression Conscience publisher Discogs accessdate 2009 05 08 ref In March ... months elapsed before the next single from The Expression saw the light of day. Small Brave Land was released in July 1985 and was quickly followed by The Expression s second album Conscience , but neither ... ref name OzRockDb but by late 1985 the ever evolving contemporary music scene had left The Expression behind, and soon thereafter the band called it a day. In 2006, The Expression s two original albums ... url http www.clubtalk.com.au wiig test wiignew Wiir Artist.asp?A 12&C 20 title The Expression Conscience ...&C 24 title The Expression Rare & Un Released publisher What It Is Records accessdate 2009 05 08 Dead ... The Expression &mdash 1983 Mushroom small L38005 small A&M small AMLH 64975 small 2006 What It Is small ... http www.discogs.com artist Expression 2C The The Expression discography Discogs http musicbrainz.org ... more details
also div style moz column width 10em column width 10em Cdx protein family Expression cloning Intein ...About a class of molecules protein as a nutrient Protein nutrient other uses pp semi indef File Myoglobin.png thumb right A representation of the 3D structure of the protein myoglobin showing colored alpha helix alpha helices . This protein was the first to have its structure solved by X ray crystallography ... into a globular protein globular or fibrous protein fibrous form, facilitating a biological function ... sequence sequence of amino acids in a protein is defined by the DNA sequence sequence of a gene , which ... . Shortly after or even during synthesis, the residues in a protein are often chemically ... stable protein complex es. One of the most distinguishing features of polypeptides is their ability ... to be single structure. Other proteins undergo large rearrangements from one protein conformation ... signaling event . Thus, the structure of a protein serves as a medium through which to regulate either the function of a protein or activity of an enzyme. Not all proteins require a folding process ... protein into free amino acids that are then used in metabolism. Proteins were first described ... Berzelius in 1838. Early nutritional scientists such as the German Carl von Voit believed that protein ... urease was in fact a protein. ref name Sumner1926 The first protein to be protein sequencing .... The first protein structure s to be solved were hemoglobin and myoglobin , by Max Perutz and John ... be protein purification purified from other cellular components using a variety of techniques such as ultracentrifugation .... Methods commonly used to study protein structure and function include immunohistochemistry , site ... protein folding the statistical analysis techniques employed to calculate a protein s probable tertiary ... chains in a protein that ultimately determines its three dimensional structure and its chemical reactivity ... linked in the protein chain, an individual amino acid is called a residue, and the linked series ... more details
Pfam box Symbol SpA Name Protein A image Protein A 1DEE 1L6X.png width caption Structure of a domain of protein A as a three helix bundle binding to the heavy variable chain of a VH3 human Fab ref name ... JB, Silverman GJ. title Crystal structure of a Staphylococcus aureus protein A domain complexed with the Fab ... month May pmid 10805799 doi pmc 25840 ref left. Minimized protein A bound to Fc fragment of Rituximab ... April pmid 10754313 doi ref Pfam InterPro SMART PROSITE SCOP 1DEE TCDB OPM family OPM protein PDB PDB2 1dee , PDB2 1l6x Protein A is a 40 60 Atomic mass unit kDa MSCRAMM surface protein originally found ... opsonization and phagocytosis . Protein A antibody binding Protein A binds with high affinity to human IgG1 and IgG2 as well as mouse IgG2a and IgG2b. Protein A binds with moderate affinity to human ... or IgD , nor will it react to mouse IgM, IgA or IgE. The capacity of protein A to bind antibodies .... The protein A used for production of antibodies in bio pharmaceuticals is most commonly bound to a stationary phase chromatography resin. Other antibody binding proteins In addition to Protein A, other immunoglobulin binding bacterial proteins such as Protein G , Protein A G and Protein L ... Staphylococcus aureus utilizes Protein A, along with a host of other proteins and surface factors to aid its survival and, thus, virulence. Protein A helps inhibit phagocytic engulfment and acts as an immunological disguise. Mutants of S. aureus lacking protein A are more efficiently phagocytosed ... toxin. J. Exp. Med. 2003 197 1125 1139. ref Research Recombinant Staphylococcal Protein ... form of Protein A is called MabSelect ref http www.gelifesciences.com aptrix upp00919.nsf Content 17D93C2E6A580E57C1257628001CE677 file 18114994AE.pdf ref . Protein A is often coupled to other molecules ... beads. Protein A is often immobilized onto a solid support and used as reliable method for purifying total IgG from crude protein mixtures such as blood serum serum or ascites fluid, or coupled with one ... more details
PBB geneid 5627 Protein S is a vitamin K dependent plasma glycoprotein synthesized in the endothelium. In the circulation, Protein S exists in two forms a free form and a complex form bound to complement system complement protein C4b. In humans, protein S is encoded by the PROS1 gene . ref name pmid2944113 ... J, Wydro R title Isolation and sequence of the cDNA for human protein S, a regulator of blood coagulation ... in Seattle , Washington first discovered protein S and arbitrarily named it after the city ... , and protein S journal Biochemistry volume 16 issue 4 pages 698 706 year 1977 month February pmid ... Characterization of protein S, a gamma carboxyglutamic acid containing protein from bovine and human ... 10.1021 bi00572a026 ref Function The best characterized function of Protein S is its role in the anti coagulation pathway, where it functions as a cofactor to Protein C in the inactivation of factor ... cite journal author Castoldi E, Hackeng TM title Regulation of coagulation by protein S journal Curr ... MOH.0b013e328309ec97 url ref Protein S can bind to negatively charged phospholipids via the carboxylated Gla domain GLA domain . This property allows Protein S to function in the removal of cells which ... . Protein S can bind to the negatively charged phospholipids and function as a bridging molecule between the apoptotic cell and the phagocyte. The bridging property of Protein S enhances the phagocytosis ... such as inflammation occurring. Pathology Mutations in the PROS1 gene can lead to Protein S deficiency ... of, and molecular defects underlying, inherited protein S deficiency in the general population ... P, Fuentes Prior P, Hurtado B, Sala N title Molecular basis of protein S deficiency journal Thromb ... Protein S has been shown to Proteinprotein interaction interact with Factor V . ref name pmid10593904 ... Y, Rosing J, Tans G, Griffin J H year 1999 month Dec. title C terminal residues 621 635 of protein ... of protein S to factor Va associated with inhibition of prothrombinase that is independent of activated ... more details
Unreferenced date December 2009 An expression cassette is a part of a vector DNA used for cloning and Transformation genetics transformation . In each successful transformation, the expression cassette directs the cell s machinery to make RNA and protein. Some expression cassettes are designed for modular cloning of protein encoding sequences so that the same cassette can easily be altered to make different proteins. Is made up of one or more gene s and the sequences controlling their Gene expressionexpression . Three components comprise an expression cassette a Promoter biology promoter sequence, an open reading frame , and a 3 untranslated region that, in eukaryotes, usually contains a polyadenylation site. Different expression cassettes can be transformed into different organisms including bacteria, yeast, plants, and mammalian cells as long as the correct regulatory sequences are used. DEFAULTSORT Expression Cassette Category Genetics Biochem stub de Expressionskassette ... more details
Unreferenced date October 2007 Expression cloning is a technique in DNA cloning that uses expression vector s to generate a library of clones, with each clone expressing one protein. This expression library is then screened for the property of interest and clones of interest recovered for further analysis. An example would be using an expression library to isolate genes that could confer antibiotic resistance . Expression vectors Expression vectors are a specialized type of cloning vector in which the transcriptional and translational signals needed for the regulation of the gene of interest are included in the cloning vector. The transcriptional and translational signals may be synthetically created to make the expression of the gene of interest easier to regulate. Purpose Usually the ultimate aim of expression cloning is to produce large quantities of specific protein s. To this end, a bacteria l expression Clone genetics clone may include a ribosome binding site Shine Dalgarno sequence to enhance translation of the gene of interest s mRNA, a Transcription genetics transcription termination sequence, or, in eukaryotes , specific sequences to promote the Posttranslational modification post translational modification of the protein product. See also http www.ncbi.nlm.nih.gov books bv.fcgi?highlight expression,cloning&rid mcb.section.1637 1646 Molecular cell biology genetics gene expression Transcription genetics translation phage pBR322 Category Molecular genetics genetics stub ... more details
An expression vector , otherwise known as an expression construct , is generally a plasmid that is used to introduce a specific gene into a target cell. Once the expression vector is inside the cell, the protein that is Genetic code encoded by the gene is produced by the cellular Transcription genetics transcription and Translation genetics translation machinery ribosome ribosomal complexes . The plasmid ... biology gene cloning experiments need not result in the expression of a protein. Expression vectors must have expression signals such as a strong promoter, a strong termination codon, adjustment ... and Promoter biology promoter regions and lead to efficient transcription of the gene carried on the expression vector. ref http www.sci.sdsu.edu smaloy MicrobialGenetics topics in vitro genetics expression vectors.html sci.sdsu.edu ref The goal of a well designed expression vector is the production of large amounts of stable messenger RNA , and therefore proteins. Expression vectors are basic ... treatments of specific diseases like diabetes . After expression of the gene product, the purification of the protein is required but since the vector is introduced to a host cell, the protein of interest ... or any other marker peptide. Expression vectors are used for molecular biology techniques such as site directed mutagenesis . Cloning vectors , which are very similar to expression vectors, involve the same ... years, expression vectors have been used to introduce specific genes in organism s, especially plants vishnu priyan used in agriculture . Expression vectors have been used to introduce a vitamin A precursor ... to apply insecticides since it is produced by the modified organism. In addition expression vectors ... bionetonline.org ref There has been controversy over using expression vectors to modify crops due ... and heavily researched. e.g. baculovirus is commonly used as expression vector in insect cells. References Reflist DEFAULTSORT Expression Vector Category Molecular biology Category Biotechnology ar ... more details
translation , and post translational modification of a protein. Regulation of gene expression ... or protein, also contributes to the expression level of the gene an unstable product results in a low ... of neomycin molecule. Neomycin is an example of a small molecule which reduces expression of all protein ... s in order to kill a cell by overriding its normal gene expression control. Protein synthesis ... Once protein synthesis is complete the level of expression of that protein can be reduced by protein ... gene expression can Identify viral infection of a cell viral proteinexpression Determine an individual ... beta lactamase expression Similarly the analysis of the location of expressionprotein is a powerful ... of protein function in single cells. Ideally measurement of expression is done by detecting ... sequence. Protein quantification For genes encoding proteins the expression level can be directly assessed ... version fused a green fluorescent protein or similar marker expression may be directly quantified ... to clone a GFP fused protein into its native location in the genome without affecting expression levels ... an expression vector . It is important to note that by fusing a target protein to a fluorescent reporter the protein s behavior, including its cellular localization and expression level, can be significantly ... Tet ON inducible shRNA system main Proteinexpression biotechnology An expression system is a system ...about vocabulary Glossary of gene expression terms a non technical introduction to the topic Introduction ... are expressed by being transcribed into RNA, and this transcript may then be translated into protein. Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product . These products are often protein s, but in non protein coding genes such as rRNA ... is a functional RNA . The process of gene expression is used by all known life eukaryotes including ... the macromolecule macromolecular machinery for life. Several steps in the gene expression process ... more details
Integral expression may refer to Integral equation More generally, a mathematical expression involving one or more integral s Integer polynomial An algebraic expression which is not in fractional form, see algebraic fraction mathdab zh ... more details
Unreferenced stub auto yes date December 2009 Ectopic expression is the expression of a gene in an abnormal place in an organism. This can be caused by a disease, or it can be artificially produced as a way to help determine what the function of that gene is. Ectopic expression of a gene can be done by introducing a transgene with a modified promoter biology promoter into the target organism transient or stable transfection or by using the GAL4 UAS system Gal4 UAS system. Ectopic expression is used to gain further understanding of the gene s functions. References DEFAULTSORT Ectopic Expression Genetics stub Category Gene expression ... more details
In mathematics , an algebraic expression is an Expression mathematics expression that contains only algebraic number s, Variable mathematics variables and algebraic Operation mathematics operations . Algebraic operations are addition , subtraction , multiplication , division and exponentiation with integral or fractional exponents. A rational algebraic expression or rational expression is an algebraic expression that can be written as a quotient of polynomial s, such as math x 2 2x 4 math . An irrational algebraic expression is one that is not rational, such as math sqrt x 4 math . Reference cite book last1 James first1 Robert Clarke last2 James first2 Glenn title Mathematics dictionary page 8 year 1992 External links MathWorld title Algebraic Expression id AlgebraicExpression Category Elementary algebra ... more details
Merge to Closed form expression discuss Talk Closed form expression Proposed merger from Analytical expression date May 2011 Unreferenced date December 2009 In mathematics , an analytical expression or expression in analytical form is a mathematical expression , constructed using well known operations that lend themselves readily to calculation. As for closed form expression s, the criteria are not precisely defined, but the class of expressions considered to be analytical expressions tends to be wider. In particular, special functions such as the Bessel functions and the gamma function are usually allowed, and often so are Series mathematics Infinite series infinite series and continued fraction s. On the other hand, Limit of a sequence limits in general, and integral s in particular, are typically excluded. DEFAULTSORT Analytical Expression Category Special functions ja zh ... more details
Musical expression is the art of playing music with communication. The elements of music that comprise expression include dynamic indications, forte or piano, Musical phrasing phrasing , differing qualities of touch and articulation, color, intensity, energy and excitement all at the service of the composer s intention as best perceived by the performer. A performer aims to elicit responses of sympathetic feeling in the audience, and to excite, calm or otherwise manipulate the audience s physical and emotional responses. In a great artist, one can feel that it is the soul that is speaking, in lesser artists, the ego. In non artist performances, one can sometimes sense the soul of the composer in the absence of interpretation. Expression can be closely related to breath, and the voice s natural ability to express feelings, sentiment, deep emotions. Whether these can somehow be categorized is perhaps the realm of academics, who view expression as an element of musical performance which embodies ... response in its listeners. ref London, J., http www.people.carleton.edu jlondon musical expression and mus.htm Musical Expression and Musical Meaning in Context . ref The emotional content of musical expression is distinct from the emotional content of specific sounds e.g., a startlingly loud bang ... its context. The components of musical expression continue to be the subject of extensive and unresolved dispute. ref Avison, C., 1752, http books.google.com books?id 8HmH5DJKhlwC Essay on Musical Expression ... of Expression in Pianoforte Playing ref ref Lussy, M., 1892, http books.google.com books?id its5AAAAIAAJ Musical Expression Accents, Nuances, and Tempo, in Vocal and Instrumental Music ref ref Darwin, C., 1910, http books.google.com books?id KRULAAAAIAAJ The Expression of the Emotions in Man and Animals ... Expression A Philosophical and Psychological Study ref ref Davies, S., 1994, http books.google.com books?id S5RE RxokUQC Musical Meaning and Expression ref See also Musical phrasing Tempo rubato References ... more details
Unreferenced date December 2009 In computer science , a Boolean expression is an Expression programming expression in a programming language that produces a Boolean value when evaluated, i.e. one of true or false . A Boolean expression may be composed of a combination of the Boolean constants true or false , Boolean data type Boolean typed variables, Boolean valued operators, and Boolean valued function s. Boolean operators Programmer s will often use a pipe symbol for OR, an ampersand & for AND, and a tilde for NOT. In many programming language s, these symbols stand for bitwise operation s. , && , and are used for variants of these operations. Other symbols are a for OR, a for AND, and an overscore for NOT. Examples The value for 5 3 is evaluated as true . 5 3 and 3 5 are equivalent Boolean expressions both of which would be evaluated as true . Of course, most Boolean expressions will contain at least one variable X 3 , and often more X Y . See also Expression programming Expression mathematics External links http www.maths.tcd.ie pub HistMath People Boole CalcLogic CalcLogic.html The Calculus of Logic , by George Boole, Cambridge and Dublin Mathematical Journal Vol. III 1848 , pp. 183 98. DEFAULTSORT Boolean Expression Category Boolean algebra Category Operators programming da Boolesk udtryk fr Expression bool enne programmation informatique ru ... more details
Orphan date February 2011 Heterologous expression is to gene Expression express a gene or part of a gene in a host organism , which does not naturally have this gene or gene fragment.This is mainly done in recombinant DNA technology . See also Recombinant DNA Category Biotechnology Biotech stub ... more details
The Oldsmobile Expression was a 1990 concept car concept vehicle. The Expression was a 4 door wagon that featured fiberglass exterior panels and 6 passenger 2 2 2 seating. Among other features showcased were rain sensing windshield wipers, in car vacuum cleaner , TV VCR with a Nintendo system, and unique four wheel steering. modern auto stub Oldsmobile Category Oldsmobile concept vehicles Expression ... more details
Expert subject Computer science date May 2009 The Expression Problem is a term used in discussing strengths and weaknesses of various programming paradigms and programming languages . The expression problem can be treated as a use case in programming language design . ref name Reynolds cite web title User defined types and procedural data structures as complementary approaches to data abstraction url http portal.acm.org citation.cfm?id 186680 ref ref name Cook cite web title Object Oriented Programming versues Abstract Data Types url http www.cs.utexas.edu users wcook papers OOPvsADT CookOOPvsADT90.pdf ref ref name Synth cite web title Synthesizing Object Oriented and Functional Design to Promote Re Use url http citeseer.ist.psu.edu krishnamurthi98synthesizing.html ref ref name Scala0 cite web title Extensible Algebraic Datatypes with Defaults url http citeseerx.ist.psu.edu viewdoc summary?doi 10.1.1.28.6778 ref ref name Scala cite web title Independently extensible solutions to the expression ... coined the term blockquote The Expression Problem is a new name for an old problem. The goal is to define ... name Wadler cite web title The Expression Problem url http www.daimi.au.dk madst tool papers expression.txt ... a language s ability to extend its notion of an expression programming expression , and as Wadler points out in the second paragraph of his original essay, whether a language can solve the Expression Problem is a salient indicator of its capacity for expression. ref name Wadler ref The expression ... Generic Programming References reflist External links http homepages.inf.ed.ac.uk wadler papers expression expression.txt The Expression Problem by Philip Wadler . http www.uni koblenz.de laemmel paradigms1011 resources xproblem.html Lecture The Expression Problem by Ralf L mmel l. http channel9.msdn.com Shows Going Deep C9 Lectures Dr Ralf Laemmel Advanced Functional Programming The Expression Problem C9 Lectures Dr. Ralf L mmel Advanced Functional Programming The Expression Problem at Channel ... more details
In the field of compiler optimization s, available expressions is an analysis algorithm that determines for each point in the program the set of expression programming expressions that need not be recomputed. Those expressions are said to be available at such a point. To be available on a program point, the operands of the expression should not be modified on any path from the occurrence of that expression to the program point. The analysis is an example of a forward data flow analysis problem. A set of available expressions is maintained. Each statement is analysed to see whether it changes the operands of one or more available expressions. This yields sets of available expressions at the end of each basic block , known as the outset in data flow analysis terms. An expression is available at the start of a basic block if it is available at the end of each of the basic block s predecessor s. This gives a set of equations in terms of available sets, which can be solved by an iterative algorithm. Available expression analysis is used to do global common subexpression elimination CSE . If an expression is available at a point, there is no need to re evaluate it. References Aho, Sethi & Ullman Compilers Principles, Techniques, and Tools Addison Wesley Publishing Company 1986 compsci stub Category Compiler optimizations el uk ... more details
Threshold expression is a phenomenon in which phenotypic expression of a mitochondrial disease within an organ system occurs when the severity of the mutation, relative number of mutant mtDNA , and reliance of the organ system on oxidative phosphorylation combine in such a way that ATP production of the tissue falls below the level required by the tissue. The phenotype may be expressed even if the percentage of mutant mtDNA is below 50 if the mutation is severe enough. See also heteroplasmy References Marks basic medical biochemistry a clinical approach By Michael A. Lieberman, Michael Lieberman, Allan D. Marks Page 392 DEFAULTSORT Threshold Expression Category DNA Category Mitochondrial diseases biochem stub ... more details
orphan date September 2009 Wikify date September 2009 A fixed expression in English is a standard form of expression that has taken on a more specific meaning than the expression itself. It is different from a proverb in that it is used as a part of a sentence, and is the standard way of expressing a concept or idea. Examples include all of a sudden come into mind fall in line I can assure you so to speak surf the web trinomials 3 word fixed expressions e.g. lights, camera, action , signed, sealed, delivered . Category Parts of speech ling stub ... more details
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