Derivation can occur without any change of form, for example telephone ( noun ) and to telephone.

Derivation accounts for many collective words.

Derivation involves affixing bound ( non-independent ) forms to existing lexemes, whereby the addition of the affix derives a new lexeme.

A Data Derivation Rule specifies the how a data value is derived based on algorithm, contributors and conditions.

In one round of the board game Derivation, players describe or fabricate a word's etymology ; players who provide a correct etymology receive one point for doing so, but their entries are then removed from play, and they lose their chance to receive multiple points by drawing multiple votes from other players.

Derivation from a Proto-Celtic root * granno-‘ beard ’ ( cf.

* Derivation of formula for the volume of frustums of pyramid and cone ( Mathalino. com )

Derivation stands in contrast to the process of inflection, which uses another kind of affix in order to form grammatical variants of the same word, as with determine / determine-s / determin-ing / determin-ed.

See the Derivation of the Joule – Thomson ( Kelvin ) coefficient below for the proof of this relation.

* Derivation, Prof. Thayer Watkins

* Derivation of Langmuir and BET isotherms, at JHU. edu

35, 112 ( 1975 ); M. Baer, " Electronic non-adiabatic transitions: Derivation of the general adiabatic-diabatic transformation matrix ", Mol.

As the result of this transformation ( see Derivation ), the proper length remains unchanged and always denotes the greatest length of an object, yet the length of the same object as measured in another inertial frame is shorter than the proper length.

* J .- P. Vigier: Derivation of inertial forces from the Einstein-de Broglie-Bohm ( E. d. B. B.

The " HMAC-based Extract-and-Expand Key Derivation Function " or " HKDF " specified in RFC 5869 is a simple HMAC-based KDF, which can be used as a building block in various protocols and applications.

Gallager's January 1965 paper in the IEEE Transactions on Information Theory, " A Simple Derivation of the Coding Theorem and some Applications, won the 1966 IEEE W. R. G.

Derivation of Tolkāppiyam from root words as per the rules defined in Nannūl verse 136.

Most amphibians go through metamorphosis, a process of significant morphological change after birth.

Cytochrome c is also released from mitochondria due to formation of a channel, the mitochondrial apoptosis-induced channel ( MAC ), in the outer mitochondrial membrane, and serves a regulatory function as it precedes morphological change associated with apoptosis.

Other significant morphological changes included the evolution of a power and precision grip, a change first occurring H. erectus.

Donald Hebb proposed that incoming information causes a series of neurons to create a neurological memory trace in the brain which would result in change in the morphological and / or chemical changes in the brain and would fade with time.

Punctuated equilibrium, bottom, consists of Morphology ( biology ) | morphological stability and rare bursts of evolutionary change

Consequently, consideration of mechanisms of phylogenetic change that have been found in reality to be non-gradual is increasingly common in the field of evolutionary developmental biology, particularly in studies of the origin of morphological novelty.

Punctuated equilibrium, bottom, consists of Morphology ( biology ) | morphological stability and rare, relatively rapid bursts of evolutionary change.

Also, sound changes may be regularized in inflectional paradigms ( such as verbal inflection ), in which case the change is no longer phonological but morphological in nature.

If generation of phenotypes is conditional, and dependent on external or environmental inputs, evolution can proceed by a " phenotype-first " route, with genetic change following, rather than initiating, the formation of morphological and other phenotypic novelties.

As the hapua is located in the Canterbury Bight it is in a state of constant morphological change due to the prevailing southerly sea swells and resultant northwards longshore drift.

After the 1950s, with the DNA helical structure being unravelled and the increasing knowledge in the field of molecular biology, developmental biology emerged as a field of study which attempts to correlate the genes with morphological change, and so tries to determine which genes are responsible for each morphological change that takes place in an embryo, and how these genes are regulated.

Reduplication in linguistics is a morphological process in which the root or stem of a word ( or part of it ) is repeated exactly or with a slight change.

In that time, sturgeons have undergone remarkably little morphological change, indicating their evolution has been exceptionally slow and earning them informal status as living fossils.

The unique, Parakeet ( meaning LONG-tailed Parrot ) morphological feature is a consequence of the decrease in size and accompanying change of ecological niche.

Modern molecular biology has shown that genetic rates of change are relatively uniform and not well related to morphological change rates.

The morphological similarity of all Scleropages species shows that little evolutionary change has taken place recently for these ancient fish.

There is little to no morphological change in words: they tend to be uninflected.

Some languages have morphological devices ( such as inflection ) that change verbs into their causative forms, or adjectives into verbs of becoming.

Consonant mutation is change in a consonant in a word according to its morphological and / or syntactic environment.

Phonological rules constrain which sounds can appear next to each other in a language, and morphological rules, when applied blindly, would often violate phonological rules, by resulting in sound sequences that are prohibited in the language in question.

" In other words, ISV terms are often made with Greek, Latin, or other combining forms, but each language pronounces the resulting neo-lexemes within its own phonemic " comfort zone ," and makes morphological connections using its normal morphological system.

The resulting language is referred to as Old Shelta and it is suspected that this stage of the language displayed distinctive features, such as non-English syntactic and morphological features, no longer found in Shelta.

The Germanic language of the Old English-speaking inhabitants was influenced by extensive contact with Norse colonizers, resulting perhaps in cases of morphological simplification of Old English, including the loss of grammatical gender and explicitly marked case ( with the notable exception of the pronouns ).

As with animals, plants can be dwarfed through genetic engineering and selective breeding, but can also undergo natural, morphological changes to acclimatize to environmental stresses such as soil quality, light, drought, flood, cold, infection, and herbivory resulting in a dwarfed stature.

The absence of lethal or deleterious consequences in floral mutants resulting in distinct morphological expressions has been a factor in the evolution of Clarkia, and perhaps also in many other plant groups.

Once activated the cells undergo several key morphological changes including the thickening and retraction of branches, uptake of MHC class I / II proteins, expression of immunomolecules, secretion of cytotoxic factors, secretion of recruitment molecules, and secretion of pro-inflammatory signaling molecules ( resulting in a pro-inflammation signal cascade ).