# factor

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Related to granulocyte-macrophage colony-stimulating factor: GM-CSF

## 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 ?
Scherzer et al., "Granulocyte-macrophage colony-stimulating factor delays neutrophil constitutive apoptosis through phosphoinositide 3-kinase and extracellular signal-regulated kinase pathways," The Journal of Immunology, vol.
Gasson, "Molecular physiology of granulocyte-macrophage colony-stimulating factor," Blood, vol.
Granulocyte-macrophage colony-stimulating factor: not just another haematopoietic growth factor.
Simultaneous antagonism of interleukin-5, granulocyte-macrophage colony-stimulating factor, and interleukin-3 stimulation of human eosinophils by targeting the common cytokine binding site of their receptors.
The authors report that cytokine release appeared to be influenced by p-NP exposures, with evidence of increased release of granulocyte-macrophage colony-stimulating factor (GM-CSF), interferon-[gamma] (IFN-[gamma]), interleukin (IL)-1[beta] IL-4, and IL-10 (maximum effects at [10.sup.-11] M), and decreased release of tumor necrosis factor-[alpha] (TNF-[alpha]) at [10.sup.-13] M.
Involvement of granulocyte-macrophage colony-stimulating factor in pulmonary homeostasis.
Some patients in the latter group also received granulocyte-monocyte colony-stimulating factor (GM-CSF) or recombinant fowlpox granulocyte-macrophage colony-stimulating factor vector.
A randomized phase II trial of granulocyte-macrophage colony-stimulating factor therapy in severe sepsis with respiratory dysfunction.
In a nested case-control study of 199 serum samples from women enrolled in the Vaginal Infections and Prematurity Study between 23 and 26 weeks' gestation and followed until delivery, median concentrations of granulocyte-macrophage colony-stimulating factor (GM-CSF) were significantly higher in samples from women with asymptomatic trichomoniasis than in those without the infection, indicating a systemic inflammatory response.

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