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Organic nomenclature - Wikipedia, the free encyclopedia Formally, rules established by the International Union of Pure and Applied Chemistry (known as IUPAC nomenclature) are authoritative for the names of organic compounds, but in practice, a number of simply-applied rules can allow one to use and understand the names of many organic compounds. In many cases, lack of rigor in applying all such nomenclature rules still yields a name that is intelligible — the aim, of course, being to avoid any ambiguity in terms of what substance is being discussed. There is also an older naming system for organic compounds known as common nomenclature, which is often used for simple, well-known compounds, and also for complex compounds whose IUPAC names are too complex for everyday use. en.wikipedia.org /wiki/Organic_nomenclature   (421 words)

Binomial nomenclature - Wikipedia, the free encyclopedia The adoption of a system of binomial nomenclature is due to Linnaeus who described the entire known natural world and gave every species (mineral, vegetable or animal) a two part name. However, binomial nomenclature in various forms existed before Linnaeus, and was used by the Bauhins, who lived nearly two hundred years before Linnaeus. In zoology, an animal species may be further subdivided, using trinominal nomenclature to indicate a subspecies (sometimes called a race), e.g. en.wikipedia.org /wiki/Binomial_nomenclature   (1476 words)

Learn more about Binomial nomenclature in the online encyclopedia.   (Site not responding. Last check: 2007-10-07) In biology, binomial nomenclature is a standard convention used for naming species. Carolus Linnaeus invented this classification, but it is a common misconception that he also invented binomial nomenclature; in fact it dates back to the Bauhins. A bacteriological code of nomenclature was approved at the 4th International Congress for Microbiology in 1947, but was later discarded. www.onlineencyclopedia.org /b/bi/binomial_nomenclature.html   (683 words)

UNIDO - SPX Tools: Nomenclature and Questionaires   (Site not responding. Last check: 2007-10-07) As a result of an analysis of the industrial nomenclatures or classifications to be referred to in the field of industrial subcontracting, it was recommended to apply the various industrial nomenclatures in use in the member countries of the European Union (initially designed in 1984/85 for the European Economic Community (EEC). NACE - Nomenclature of Economic Activities; statistical nomenclature of industrial activities in the European Communities, Rev, October 1, 1990, which is used to codify the main industrial sector of the enterprise and the secondary sectors. Nomenclature of LEGAL FORMS: The various legal forms that each courttry accepts for the registration of companies and their corresponding abbreviation. www.unido.org /en/doc/4552   (653 words)

New 129 Nomenclature(revised) - The Jackson Laboratory The overall result is a change in 129 nomenclature that specifies groups of strains related by their common parental lineage. The new nomenclature is based on the substrains identified and defined in terms of microsatellite markers by Simpson et al. This nomenclature change is equivalent to that used to distinguish between RIII and RIIIS, where the latter differs substantially from the former. jaxmice.jax.org /info/bulletin/bulletin01.html   (1008 words)

nomenclature rules   (Site not responding. Last check: 2007-10-07) A name that identifies the compound as belonging to a particular class of compounds (ionic vs. covalent, inorganic vs. organic, etc.) and provides information about the chemical composition (and structure) of the compound would be ideal. Nomenclature is the systematic approach to naming chemical compounds. Test your knowledge of nomenclature with the Nomenclature Assignment. www2.pvc.maricopa.edu /tutor/chem/chem130/nomenclature/ncrules.html   (198 words)

ipedia.com: Chemistry Article   (Site not responding. Last check: 2007-10-07) Chemistry is the science of the structure, properties, composition, and reactions of chemical elements and compounds. Organic compounds are named according to the organic nomenclature system. Inorganic compounds are named according to the inorganic nomenclature system. www.ipedia.com /chemistry.html   (875 words)

RECOMMENDATIONS FOR A NOMENCLATURE   (Site not responding. Last check: 2007-10-07) As a chairperson of the Nomenclature committee, I had accepted the task preparing and circulating a document with recommendations for debate, further discussions and most importantly for final approval / acceptance at the October 1996 meeting in San Francisco. The nomenclature, at least in the present state of the human genome development, needs to be accurate, unambiguous, but flexible. The genomic DNA-based nomenclature was termed "systematic" by Beutler at al, while all other mutation names were considered as "trivial" or "common" by these authors. ariel.ucs.unimelb.edu.au /~cotton/antonara.htm   (1317 words)

NAT A consensus was reached to form a arylamine N-acetyltransferase nomenclature committee to assess what changes need to be made in the nomenclature and to serve as a clearing house for naming new arylamine N-acetyltransferase alleles. At the request of the arylamine N-acetyltransferase nomenclature committee, the HUGO nomenclature committee (www.gene.ucl.ac.uk/nomenclature) agreed to designate NAT as the official gene symbol of arylamine N-acetyltransferase. The committee was requested to submit an update of the nomenclature to an appropriate journal for publication. www.louisville.edu /medschool/pharmacology/NAT.html   (489 words)

MGI_3.3 - New Nomenclature for Strain 129 Mice These nomenclature changes affect the strain names for inbred 129 mice and all mice carrying transgenes, and spontaneous and targeted mutations maintained on a 129 background. The new nomenclature is based on the substrains identified and defined in terms of microsatellite markers by Simpson et al., (1997). These new nomenclature rules should be put into effect as soon as possible, though it is recognised that this may take some time if it involves printing new literature, price lists etc. www.informatics.jax.org /mgihome/nomen/strain_129.shtml   (868 words)

International Union of Pure and Applied Chemistry The IUPAC Commission on Macromolecular Nomenclature is the leading nomenclature body in the polymer field. This Compendium is a compilation of the IUPAC recommendations on macromolecular nomenclature which provides definitions of terms relating to polymers and rules for naming polymers based on structure or source. The IUPAC-approved terminology and nomenclature, by providing standardized descriptions of the materials and processes for polymer science and technology, are intended to improved communication in the scientific community. www.iupac.org /publications/books/author/metanomski.html   (394 words)

Eph Nomenclature   (Site not responding. Last check: 2007-10-07) This web page carries information on the nomenclature of the ephrins and their receptors, the Eph receptor tyrosine kinases. A nomenclature for these cell-cell signaling molecules was published in August 1997. The nomenclature has not formally been extended to fish and amphibians. eph-nomenclature.med.harvard.edu   (186 words)

ZFIN Zebrafish Nomenclature The current nomenclature guidelines are updates to rules established during a discussion session at a meeting in Ringberg, Germany, in March 1992, and are widely accepted by most zebrafish labs. In cases where the mammalian orthologue of a zebrafish gene has a different name that has been approved by the appropriate nomenclature committee, the approved mammalian name may be appended to the zebrafish name, lower case in parentheses. When genes initially identified by genomic sequencing projects are better diagnosed, the gene nomenclature will be changed to maintain consistency within gene families or to indicate orthology relationships with genes in other species. zfin.org /zf_info/nomen.html   (2609 words)

Definition of Planetary nomenclature Planetary nomenclature, like terrestrial nomenclature, is used to uniquely identify a feature on the surface of a planet or natural satellite so that the feature can be easily located, described, and discussed. Nomenclature is a tool and the first consideration should be to make it simple, clear, and unambiguous. Ring and ring-gap nomenclature and names for newly discovered satellites are developed in joint deliberation between WGPSN and IAU Commission 20. www.wordiq.com /definition/Planetary_nomenclature   (1424 words)

Nomenclature Nomenclature can be defined as the terminology of chemical compounds. It represents the basic "language of chemistry" and, just as the student who is studying French or Spanish must learn the terminology of those languages, so must the chemistry student learn the basic terminology of the discipline. This organizer shows the steps to follow when naming both ionic compounds and binary covalent compounds. www.chem.vt.edu /RVGS/ACT/notes/Nomenclature.html   (548 words)

Human Gene Nomenclature | Fall/Winter 2000 Some scientific journals now insist upon an approved gene nomenclature prior to publication of an article‚ a reflection of the benefit that can be gained by establishing and adopting standardized terminology. New genes requiring nomenclature are identified through three principal mechanisms: direct queries from investigators; queries from other databases and collaborating curation groups; and literature scans of major scientific journals. The official nomenclature established by HGNC‚ as well as the official nomenclature generated by other nomenclature committees‚ is an integral component of NCBI’s LocusLink and RefSeq resources. www.ncbi.nlm.nih.gov /Web/Newsltr/FallWinter2000/nomenclature.html   (520 words)

A Reassessment of the Nomenclature of Polychlorinated Biphenyl (PCB) Metabolites   (Site not responding. Last check: 2007-10-07) A Reassessment of the Nomenclature of Polychlorinated Biphenyl (PCB) Metabolites This nomenclature for both the abbreviation and full chemical name of a given PCB metabolite provides a clear, unequivocal structure and delivers a unified technique that can be used for both classes of PCB metabolites. A standardized nomenclature that is presently suggested for the naming of a PCB metabolite should be universally adopted and sanctioned by IUPAC to facilitate unambiguous comparison of congener-specific data among published studies. ehp.niehs.nih.gov /members/2003/6409/6409.html   (2435 words)

classification -> Binomial Nomenclature on Encyclopedia.com 2002   (Site not responding. Last check: 2007-10-07) This avoids the confusion that often arises from the use of a common name to designate different things in different places (for example, see elk), or from the existence of several common names for a single species. There are two international organizations for the determination of the rules of nomenclature and the recording of specific names, one for zoology and one for botany. According to the rules they have established, the first name to be published (from the work of Linnaeus on) is the correct name of any organism unless it is reclassified in such a way as to affect that name (for example, if it is moved from one genus to another). www.encyclopedia.com /html/section/classifi_BinomialNomenclature.asp   (768 words)

Nomenclature, genes, proteins & beyond Consortium http://www.geneontology.org/ Functional genomics glossary is not dealing specifically with gene nomenclature their efforts at integrating terminology are an important step being able to compare genes in any number of organisms (plants, model organisms, and animals including humans). JT Dunnen, SE Antonarakis SE "Mutation nomenclature extensions and suggestions to describe complex mutations: a discussion" Human Mutation 2000; 15 (1): 7- 12 While a codified mutation nomenclature system for simple DNA lesions has now been adopted broadly by the medical genetics community, it is inherently difficult to represent complex mutations in a unified manner. Nomenclature committees were soon established for both the human and mouse genes and guidelines (White et al., 19972 and Maltais LJ et al., 19973) published in conjunction with the reports from the HGM (Human Genome Mapping) meetings. www.genomicglossaries.com /content/nomenclature.asp   (1907 words)

RGD: Help: Nomenclature Resources The Rat Genome Nomenclature Committee (RGNC) exists to develop internationally accepted standard genetic nomenclature for rat genes and other genetic loci and rat strains. Nomenclature of rat genes is coordinated with that of human and mouse so that in most cases, homologous genes in the three organisms will carry the same symbol and name. Joint rat and mouse guidelines have been approved by the Rat Genome Nomenclature Committee and the International Committee on Standardized Genetic Nomenclature for Mice. rgd.mcw.edu /nomen/nomen.shtml   (326 words)

Guidelines for Nomenclature of Cloned Genes or DNA Fragments in Rice On the other hand, if sufficient information is available to show that the first rice amylase gene to be published is closely related to a wheat gene, such as Amy 2, then the rice gene should be named Amy 2 instead of Amy 1. The Committee suggests that in naming rice genes, the nomenclature should not include the abbreviation for rice. Guidelines for nomenclature of biochemical/molecular loci in wheat and related species. www.gramene.org /newsletters/rice_genetics/rgn8/v8p51.html   (1198 words)

Eph nomenclature The resulting nomenclature has now been endorsed by over70 scientists (Footnote 1), many of whom contributed extensively to defining the nomenclature and to preparing this letter, as well as by the human and mouse gene nomenclature committees. A new member of the family is defined as a fully sequenced gene, cDNA or protein that belongs to this subfamily based on sequence homology. Please consult the Eph nomenclature web site (http://www.eph-nomenclature.med.harvard.edu) prior to publication of any new member, apparent ortholog, gene locus, or splice variant, to obtain details on how to assign an appropriate name and number. eph-nomenclature.med.harvard.edu /cell_letter.html   (615 words)

Nomenclature of Coordination Complexes   (Site not responding. Last check: 2007-10-07) The first 'system' of chemical nomenclature was developed by Guyton de Morveau in 1782.[1] Guyton's statement of the need for a 'constant method of denomination, which helps the intelligence and relieves the memory' is still true today. Overall, the emphasis on additive nomenclature (generalized from the classical nomenclature of coordination compounds) which was already apparent in the 1990 Red Book, is reinforced. Nomenclature is important in Coordination Chemistry because of the need to have an unambiguous method of describing formulae and writing systematic names, particularly when dealing with isomers. wwwchem.uwimona.edu.jm:1104 /courses/inorgnom.html   (649 words)

Search Results for nomenclature - Encyclopædia Britannica The species to which the organism belongs is indicated by two words, the genus and species names, which are Latinized words derived from... A carboxylic ester, RCOOR, may be thought of as being derived from the carboxylic acid RCOOH and the alcohol RCOH (or the phenol ArOH, where Ar represents an aromatic ring), and both of these are... While minerals are classified in a logical manner according to their major anionic (negatively charged) chemical constituents into groups such as oxides, silicates, and nitrates, they are named in a... www.britannica.com /search?ref=B04319&query=nomenclature&submit=Find   (460 words)

Curiosities of Biological Nomenclature   (Site not responding. Last check: 2007-10-07) In botanical nomenclature, the authors are given in taxonomic monographs, and if a name is changed, both the original author (in parentheses) and the revising author are named. For an extensive and growing list and description of biodiversity, organized in the context of the evolutionary tree, see The Tree of Life. Definitions and Abbreviations for an index of rules for bacterial nomenclature. home.earthlink.net /~misaak/taxonomy.html   (1303 words)

Organic chemistry nomenclature Glossary of class names of organic compounds and reactive intermediates based on structure. Treatment of variable valence in organic nomenclature (lambda convention). Generates systematic names according to IUPAC and IUMBM recommendations on Nomenclature of Organic Chemistry for almost any organic structure and selected classes of natural products, biochemical, organometallic and inorganic structures. www.organicworldwide.net /nomencl.html   (381 words)

Bacillus thuringiensis Toxin Nomenclature The Bacillus thuringiensis delta-endotoxin nomenclature committee was set up in 1993 in order to update the nomenclature originally devised in 1989 by Hofte and Whiteley (Microbiological Reviews 53:242-255) and consists of the following committee members. The current nomenclature, based solely on amino acid identity, allows closely related toxins to be ranked together and removes the necessity for researchers to bioassay each new toxin against a growing series of organisms. We envisage that just prior to publication, or submission to a database, workers will submit their sequence to either Neil Crickmore or Dan Zeigler who will then consult the committee and assign a name to the toxin. www.lifesci.sussex.ac.uk /home/Neil_Crickmore/Bt/intro.html   (587 words)

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