transformation

Any alteration in the properties of a cell that is stably inherited by its progeny. Classical example was the transformation of Diplococcus pneumoniae to virulence by DNA, achieved in 1944 by Avery, MacLeod & McCarty. Currently usually refers to malignant transformation, but is used in other senses also, such as blast transformation of lymphocytes, which can be distinguished only by context. Malignant transformation is a change in animal cells in culture that usually greatly increases their ability to cause tumours when injected into animals. (It is assumed that parallel changes occur during carcinogenesis in vivo ). Transformation can be recognized by changes in growth characteristics, particularly in requirements for macromolecular growth factors, and often also by changes in morphology. ...

Transformation

A major organizational change from the present state to a new/preferred state in which CQI flourishes. The primary steps involved in moving an organization through a transformation are present state, unfreezing, transition period, refreezing, and new/preferred state.

Transformation

A genetic engineering procedure whereby a piece of foreign DNA is transferred to a cell thus conferring upon it novel characters. Also, the change of a normal to a malignant cell.

transformation

  1. a qualitative change
  2. a function that changes the position or direction of the axes of a coordinate system
  3. the act of transforming

transformation

The alteration of one mineral to another.
Found on http://www.encyclo.co.uk/local/22291

Transformation

• (n.) Change of one from of material into another, as in assimilation; metabolism; metamorphosis. • (n.) The change, as of an equation or quantity, into another form without altering the value. • (n.) Any change in an organism which alters its general character and mode of life, as in the development of the germ into the embryo, the...
Found on http://thinkexist.com/dictionary/meaning/transformation/

transformation

<chemistry> The change of form or structure, conversion from one form to another. ... <oncology> The change that a normal cell undergoes as it becomes malignant. In eukaryotes, the conversion of normal cells to malignant cells in cell culture. ... Origin: L. Formatio = formation ... (18 Nov 1997) ...
Found on http://www.encyclo.co.uk/local/20973

transformation

(from the article `clay mineral`) In nature both mineral formation mechanisms, neoformation and transformation, are induced by weathering and hydrothermal and diagenetic actions.
Found on http://www.britannica.com/eb/a-z/t/72

transformation

(from the article `trigonometry`) A transformation of coordinates in a plane is a change from one coordinate system to another. Thus, a point in the plane will have two sets of ... ...cases of projective geometry. In each case the common features that, in Klein`s opinion, made them geometries were that there were a set of ... In 1871...
Found on http://www.britannica.com/eb/a-z/t/71

Transformation

(Temperature) The critical temperature at which a change in phase occurs. To distinguish between the critical points in heating and cooling those in heating are referred to as the Ac points (c for Chauffage or heating) and those in cooling, Ar. (r for Refroidissement)
Found on http://www.encyclo.co.uk/local/22067

transformation

(trans″for-ma´shәn) change of form or structure; conversion from one form to another. in oncology, the change that a normal cell undergoes as it becomes malignant. bacterial transformation the exchange of genetic material between strains of bacteria by the transf...
Found on http://www.encyclo.co.uk/local/21001

transformation

(trans- + L. formatio formation) change of form or structure; conversion from one form to another. In oncology, the change that a normal cell undergoes as it becomes malignant. In eukaryotes, the conversion of normal cells to malignant cells in cell culture.
Found on http://users.ugent.be/~rvdstich/eugloss/DIC/dictio88.html

transformation

transmutation noun a qualitative change
Found on https://www.encyclo.co.uk/local/20974

Transformation

[combinatorics] In combinatorial mathematics, the notion of transformation is used with several slightly different meanings.{which|date=August 2014} Informally, a transformation of a set of N values is an arrangement of those values into a particular order, where values may be repeated, but the ordered list is N elements in length. Thus, th...
Found on http://en.wikipedia.org/wiki/Transformation_(combinatorics)

Transformation

[function] In mathematics, particularly in semigroup theory, a transformation is any function f mapping a set X to itself, i.e. f:X→X.{cite book|author1=Olexandr Ganyushkin|author2=Volodymyr Mazorchuk|title=Classical Finite Transformation Semigroups: An Introduction|year=2008|publisher=Springer Science & Business Media|isbn=978-1-84800-28...
Found on http://en.wikipedia.org/wiki/Transformation_(function)

Transformation

[genetics] In molecular biology, transformation is the genetic alteration of a cell resulting from the direct uptake and incorporation of exogenous genetic material (exogenous DNA) from its surroundings and taken up through the cell membrane(s). Transformation occurs naturally in some species of bacteria, but it can also be effected by arti...
Found on http://en.wikipedia.org/wiki/Transformation_(genetics)

Transformation

[law] In United States copyright law, transformation is a possible justification that use of a copyrighted work may qualify as fair use, i.e., that a certain use of a work does not infringe its holder`s copyright due to the public interest in the usage. Transformation is an important issue in deciding whether a use meets the first factor of...
Found on http://en.wikipedia.org/wiki/Transformation_(law)

Transformation

[music] In music, a transformation consists of any operation or process that may apply to a musical variable (usually a set or tone row in twelve tone music, or a melody or chord progression in tonal music) in composition, performance, or analysis. Transformations include multiplication, rotation, permutation (i.e. transposition, inversion,...
Found on http://en.wikipedia.org/wiki/Transformation_(music)

Transformation

[patent law] After a lecture on his Martinique expedition in Honolulu, Jaggar was approached by Lorrin A. Thurston a prominent Honolulu lawyer and businessman. Thurston, like Jaggar, believed that Kilauea was a prime site for a permanent volcano observatory and inquired of Jaggar, `Is it then a question of money?`. Within a year of this con...
Found on http://en.wikipedia.org/wiki/Transformation_(patent_law)

Transformation

[warfare] Transformation is a buzzword popularized by Donald Rumsfeld referring to a `change of mindset that will allow the [US] military to harness the technological advances of the information age to gain a qualitative advantage over any potential foe.` Currently it is composed of three ideas. `The three key elements of transformation thu...
Found on http://en.wikipedia.org/wiki/Transformation_(warfare)

transformation

A process by which the genetic material carried by an individual cell is altered by incorporation of exogenous DNA into its genome.
Found on http://linkage.rockefeller.edu/wli/glossary/genetics.html

Transformation

A process by which the genetic material carried by an individual cell is altered by incorporation of
Found on http://www.encyclo.co.uk/local/22391

Transformation

A process by which the genetic material carried by an individual cell is altered by incorporation of exogenous DNA into its genome.
Found on http://www.ornl.gov/sci/techresources/Human_Genome/glossary/glossary.shtml

transformation

A process in which exogenous DNA is taken up by a (recipient) cell or protoplast, in which it may be incorporated into the chromosome (or, e.g., into a plasmid) by homologous recombination or converted into an autonomous replicon. The DNA (transforming or donor DNA) may be a fragment of chromosomal DNA from a related strain, a plasmid, or a viral g...
Found on http://ppathw3.cals.cornell.edu/glossary/Defs_T.htm

Transformation

bacterial cells are transformed genetically by absorbing and incorporating in their own cells genetic material secreted by, or released during rupture of, other bacteria.
Found on http://www.encyclo.co.uk/local/21006
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