Sentences with phrase «classification scheme by»

The Harvard system is a one - dimensional classification scheme by astronomer Annie Jump Cannon, who re-ordered and simplified a prior alphabetical system.

Not exact matches

Schaefer says that his organization has a letter scheme to describe species as GX (presumed extinct) or GH (possibly extinct) and then uses several other classifications, such as G1 (critically imperiled)-- ranks also used by various federal agencies.

A refined scheme for stellar classification was published in 1943 by W. W. Morgan and P. C. Keenan.

The basic classification is usually followed by an abundance indication, following one of several schemes: S2, 5; S2 / 5; S2 Zr4 Ti2; or S2 * 5.

Later, in 1953, after some revisions of list of standard stars and classification criteria, the scheme was named the Morgan — Keenan classification, or MK (by William Wilson Morgan and Philip C. Keenan's initials), [17] and this system remains the system in modern use today.

Modern classification schemes are driven by somewhat rigid categorizations inherent in DNA and common ancestry.

Although the global mapping of reservoir trophic status (and associated upscaling of CH4 emissions) is beyond the scope of this article, recent progress in the mapping of chlorophyll a in medium and large - sized lakes and reservoirs shows that about 60 % of systems have more than 10 micrograms per liter chlorophyll a (Sayers et al. 2015), and would therefore be considered eutrophic by most classification schemes (Cunha et al. 2013).

If you wish to access EU legislation by subject, the Directories option provides a classification scheme for searching by subject — eg, by fisheries, or energy.

Further, while the Library of Congress Classification scheme was largely in place by 1939, Class K for Law was the last class of the LCC to be developed and not introduced until much later.

The most popular feature of Maritime Law Book's law report series was the use of Key Numbers which combines the best features of the Canadian Abridgement Classification System (Key Words providing a framework to organic cases by legal concepts, minus the associated cumbersome alphanumeric numbering scheme) with a numbering scheme modelled on the West Key Numbering System.

Research could be simplified if the existing case law classification schemes are replaced by that of the Canadian Abridgment, making it possible to link the new series to Law Source, Carswell Thomson's online case reporting service.

Based on prior research suggesting that distinctions between allegations and substantiations are not useful, 31,32 official reports of alleged child abuse were coded using a slightly modified version33 of the maltreatment classification scheme developed by Barnett et al. 34 Three general indicators of child abuse were created, each dichotomized as present or not, based on the coding of the following records: (1) physical abuse (any blows or injury to the head, torso, buttocks, or limbs; and violent handling, choking, burning, shaking, or nondescript injury); (2) sexual abuse (any sexual exposure, exploitation, molestation, or penetration); and (3) psychological maltreatment (threats to psychological safety and security, lack of acceptance and threats to self - esteem, or failure to allow age - appropriate autonomy).