Pure Science

Harvard Spectral Classification Scheme

"The modern stellar spectral classification scheme (also known as the Harvard Spectral Classification Scheme) was created by Annie Jump Cannon through her examination of spectra from 1918 to 1924. Originally, the scheme used capital letters running alphabetically, but was later reordered to reflect the surface temperatures of stars. In order of decreasing temperature, these types were O, B, A, F, G, K and M. Three additional categories also in the scheme: R, N, and S types, were later realized to represent stars with peculiar heavy-metal abundances.

Coastal and Marine Ecological Classification Standard

"The Coastal and Marine Ecological Classification Standard (CMECS) provides a national framework for organizing information about coasts and oceans and their living systems. It provides a structure for developing and synthesizing data so that ecosystems can be identified, characterized, and mapped in a standard way across regional and national boundaries. CMECS also supports status and trend monitoring activities, policy development, restoration planning, and fisheries management. The standard complements existing wetland and upland classification systems.

Biological Collections Ontology

"The Biological Collections Ontology (BCO) is an application ontology developed as part of the Biocode Commons project, within the OBO Foundry framework. The goal of the BCO is to support the interoperability of biodiversity data, including data on museum collections, environmental/metagenomic samples, and ecological surveys. The BCO covers distinctions between individuals, organisms, voucher specimens, lots, samples, the relations between these entities, and the processes governing the creation and use of 'samples'.


Οι περισσότεροι χημικοί όροι που έχουν συγκεντρωθεί προέρχονται από ξένες λέξεις, κυρίως λατινικές, πολλές από τις οποίες έχουν ελληνική προέλευση ή ανάλογη λέξη από κοινή ρίζα. Δεν επιχειρείται η ερμηνεία ή η περιγραφή του όρου, με κάποιες εξαιρέσεις. Επίσης κατ’ εξαίρεση, σε μερικές περιπτώσεις αναπτύσσεται το ιστορικό πλαίσιο στο οποίο βασίστηκε η δημιουργία της λέξης. Οι λέξεις που ετυμολογούνται ανήκουν και σε ευρύτερα πεδία, όπως την ορυκτολογία, τη βιοχημεία, τη φαρμακολογία και μερικά εμπορικά προϊόντα.

Most of the chemical terms that have been collected come from foreign words, mainly Latin, many of which have Greek origin or similar word of common origin. It does not attempt to interpret or describe the term, with some exceptions. Also by way of exception, in some cases the historical context on which the creation of the word was based is developed. The words that are said to belong to broader fields, such as mineralogy, biochemistry, pharmacology and some commercial products.

Prokaryotic Nomenclature Up-to-Date

"Prokaryotic Nomenclature up-to-date' is a compilation of all names of Bacteria and Archaea which have been validly published according to the Bacteriological Code since 1. Jan. 1980, and nomenclatural changes which have been validly published since. It will be updated with the publication of each new issue of the Int. J. Syst. Evol. Microbiol. (IJSEM).
'Prokaryotic Nomenclature up-to-date' is based on the work of N. Weiss and M. Kracht and is maintained by Dorothea Gleim who may be consulted on technical aspects (database resp. online access)."