factor

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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
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 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
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 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.

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

factor

A quantity which is multiplied by another quantity.

See also divisor.

factor

A number that divides evenly into another number. For example, 3 and 4 are factors of 12. See factorial and IFP.
References in periodicals archive ?
Treatment of Felty's syndrome with the haemopoietic growth factor granulocyte colony-stimulating factor (G-CSF).
There are significant side effects associated with G-CSF, including severe bone pain that may require the use of narcotic pain medications.
The results of the coadministration group were significantly lower than those of the BMSCs and G-CSF groups (P<0.001).
As shown in Figure 3, after intervention treatment, LN, PCIII, and CIV of BMSCs group, BMSCs + G-CSF group, BMSCs + JSSQ group, and JSSQ group all showed different degrees of reduction (P < 0.0001).
Factor 1 corresponds to the factorial loadings of IL-6, IL-8, IL-10, IL-1[beta] and G-CSF. Factor 2 represents IL-2, TNF-[alpha] and GM-CSF loadings; Factor 3, the loadings of IL-17 and IL-12/23p40.
Upto 38% of patients with neonatal sepsis were associated with neutropenia with a mortality of upto 27%.11 Sepsis induced neutropenia may be transient or resolve with treatment but in a critical infant with multi-system involvement it could be a sign of severe overwhelming sepsis.10 Despite infection control, antibiotic stewardship and improved care techniques, 13 neonates may experience a prolonged NICU stay which is likely to contribute to higher rates of severe nosocomial sepsis and ventilator associated pneumonia.14 Treatment of neonates having neutropenic sepsis with G-CSF has met with variable success.
On univariable analysis the factors which had the most significant impact on primary PSA progression were ECOG PS [greater than or equal to]2 (OR 9.14, 95% CI 0.72 to 115.5; p = 0.09), prior abiraterone (OR 0.10, 95% CI 0.01 to 0.87; p=0.04), and receipt of primary prophylaxis with G-CSF (OR 0.08, 95% CI 0.01 to 0.73; p=0.03).
Pharmacologically, a significant role is expected for granulocyte colony-stimulating factor (G-CSF) to play in vascular pathologies and progression of atherosclerosis1,2.
First, we analyzed the numbers of all progenitor and stem cells identified as CD34+ cells as well as HSCs, VSELs, EPCs, and frequencies of monocyte subsets in ALL patients after chemotherapy before G-CSF administration, and we compared these values with age-matched control subjects.
After receiving G-CSF (from 5 to 15 [micro]g/kg/24h), his neutrophil counts increased dramatically (Figure 2).
LPS sensitization was induced by pretreating the rats with G-CSF (100 [micro]g/kg/day for 5 days, subcutaneous injection, Ratiopharm, Breda, Netherlands) prior to LPS administration as described before [9] (Figure S1B).