# factor

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Related to Transforming growth factor: Fibroblast growth factor, Transforming growth factor alpha

## factor,

in arithmetic, any number that divides a given number evenly, i.e., without any remainder. The factors of 12 are 1, 2, 3, 4, 6, and 12. Similarly in algebra, any one of the algebraic expressions multiplied by another to form a product is a factor of that product, e.g., a+b and ab are factors of a2b 2, since (a+b)(ab)=a2b2. In general, if r is a rootroot,
in mathematics, number or quantity r for which an equation f(r)=0 holds true, where f is some function. If f is a polynomial, r is called a root of f; for example, r=3 and r
of a polynomialpolynomial,
mathematical expression which is a finite sum, each term being a constant times a product of one or more variables raised to powers. With only one variable the general form of a polynomial is a0xn+a1x
equation f(x)=0, then (xr) is a factor of the polynomial f(x).

## factor

[′fak·tər]
(mathematics)
For an integer n, any integer which gives n when multiplied by another integer.
For a polynomial p, any polynomial which gives p when multiplied by another polynomial.
For a graph G, a spanning subgraph of G with at least one edge.
(statistics)
A quantity or a variable being studied in an experiment as a possible cause of variation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

## factor

1. Maths
a. one of two or more integers or polynomials whose product is a given integer or polynomial
b. an integer or polynomial that can be exactly divided into another integer or polynomial
2. Med any of several substances that participate in the clotting of blood
3. Law, Commerce a person who acts on another's behalf, esp one who transacts business for another
4. former name for a gene
5. Commercial law a person to whom goods are consigned for sale and who is paid a factorage
6. (in Scotland) the manager of an estate
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

## factor

A quantity which is multiplied by another quantity.

## factor

A number that divides evenly into another number. For example, 3 and 4 are factors of 12. See factorial and IFP.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
Coronary vessel development is dependent on the type III transforming growth factor beta receptor.
Transforming growth factor beta 1 inhibits placental differentiation and human chorionic gonadotropin and human placental lactogen secretion.
Arteaga, "Transforming growth factor [beta] enhances epithelial cell survival via Akt-dependent regulation of FKHRL1," Molecular Biology of the Cell, vol.
Bates, "Recombinant human transforming growth factor [[beta].sub.1] modulates bone remodeling in a mineralizing bone organ culture," Journal of Bone and Mineral Research, vol.
Martin, "Transforming growth factor beta 1 (TGF[beta]1) gene polymorphisms and Chagas disease susceptibility in Peruvian and Colombian patients," Cytokine, vol.
There is a key function of Transforming Growth Factor Beta 1 in repair of wounds; it is a strong chemotactic factor for fibroblasts and activates them to produce main extracellular matrix components like collagen.
Ghahary, "Critical role of transforming growth factor beta in different phases of wound healing," Advances in Wound Care, vol.
TABLE Factors in the early development of breast cancer * Genetic factors Growth factors Tissue factors + Repressor genes + Estrogen Basement membranes - Proto-oncogenes + Progesterone Immune shielding + EGF, TGF[alpha] Angiogenesis + Insulin Abbreviations: EGF, epithelial growth factor; TGF[alpha], transforming growth factor alpha.
The association between CL/P and specific alleles in the transforming growth factor alpha (TGFA) gene suggests that TGFA could be a candidate gene for CL/P (11-15)
It contains cytokines such as IL-1, -4, -6, and growth factors such as Transforming Growth Factor beta 1 (TGF-a1), Platelet Derived Growth Factor (PDGF), and Vascular Endothelial Growth Factor (VEGF).
Transforming growth factor type beta 1 (TGF-[beta]1) has been demonstrated to be a main regulator of atrophy, fibrosis, myogenesis and regeneration within skeletal muscle (Burks and Cohn, 2011).

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