Pure Science

Star Trek Planetary Classification

"A planet is a celestial body in orbit around a star or stellar remnants, that has sufficient mass for self-gravity and is nearly spherical in shape. A planet must not share its orbital region with other bodies of significant size (except for its own satellites), and must be below the threshold for thermonuclear fusion of
deuterium. If a celestial body meets those requirements, it is considered a planet; at that point, the planet is further classified by its atmosphere and surface conditions into one of twenty-two categories."

Natural England Corporate Vocabulary

"The Corporate Vocabulary is a purpose-built indexing tool which can be used for many applications across Natural England to search for and retrieve information more effectively. It facilitates accurate and consistent indexing and, by showing the relationships between different terms, it allows the most appropriate terms to be chosen, which improves the relevance of the information found."

Everglades Online Thesaurus

"The Everglades Online Thesaurus is a structured vocabulary of concepts and terms relating to the south Florida environment. Designed as an information management tool for both researchers and metadata creators, the Thesaurus is intended to improve information retrieval across the many disparate information systems, databases, and web sites that provide Everglades-related information. The vocabulary provided by the Everglades Online Thesaurus expresses each relevant concept using a single ‘preferred term’, whereas in natural language many terms may exist to express that same concept.

PIRA Demonstration Classification Scheme

"The goal of the Physics Instructional Resource Association (PIRA) Demonstration Classification Scheme is to create a logically organized and universally inclusive taxonomy giving a unique code to every lecture demonstration. (...) The topic and concept divisions of the structure loosely follow the standard textbook organization of chapter and section, although they were created to organize existing demonstrations, not cover the entirety of introductory physics, and therefore skip some areas of the curriculum covered by standard textbooks.

Tesauro del Medio Ambiente para América Latina y el Caribe

"Para una mejor comprensión del tema y adecuada aplicación de los descriptores en el proceso de análisis de información ambiental, hemos considerado necesario presentar en la primera parte del tesauro, los módulos o grandes categorías bajo los cuales se han agrupado los descriptores.
Estas categorías ofrecen una visión de conjunto de los componentes del medio ambiente y coinciden con la organización que le otorgan la mayoría de los especialistas, para estudiar el contexto ambiental latinoamericano.

"For a better understanding of the subject and adequate application of the descriptors in the process of analysis of environmental information, we considered it necessary to present in the first part of the thesaurus, the modules or large categories under which the descriptors have been grouped.
These categories offer an overview of the components of the environment and coincide with the organization that is given by the majority of specialists to study the Latin American environmental context.

Aves - A Taxonomy in Flux

"There are big changes underway in bird taxonomy. You've probably noticed that the checklist is always changing. Suddenly the ducks have replaced the loons in front of the NGS guide. Not too long ago the shrikes and vireos were next to the warblers, now they're next to the jays. Maybe you've heard that vultures are storks, or that they're not really storks after all, or that North American tanagers are now cardinals, or that saltators are tanagers, not cardinals. Then there are the Baltimore and Bullock's Orioles, or are they just Northern Orioles?

Human Phenotype Ontology

"The Human Phenotype Ontology (HPO) aims to provide a standardized vocabulary of phenotypic abnormalities encountered in human disease. Each term in the HPO describes a phenotypic abnormality, such as atrial septal defect. The HPO is currently being developed using the medical literature, Orphanet, DECIPHER, and OMIM. HPO currently contains approximately 11,000 terms and over 115,000 annotations to hereditary diseases. The HPO also provides a large set of HPO annotations to approximately 4000 common diseases.