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Dictionary » D » Determinant

Determinant

Determinant

1. That which serves to determine; that which causes determination.

2. (Science: mathematics) The sum of a series of products of several numbers, these products being formed according to certain specified laws; thus, the determinant of the nine numbers. Is a b' c a b c _ a b c] a b c _ a b' c. The determinant is written by placing the numbers from which it is formed in a square between two vertical lines. The theory of determinants forms a very important branch of modern mathematics.

3. (Science: logic) a mark or attribute, attached to the subject or predicate, narrowing the extent of both, but rendering them more definite and precise.


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Re: A Calculus-Based Viewpoint for Negative Feedback

dear past self, interesting thoughts .. the rate of change being an important determinant fits a mathematical model that, unfortunately, does not reveal what is going on .. ADH causes aquaporin 2 proteins to be inserted into the distal nephron (DCT) .. these aquaporins ...

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by majik1213
Sun Apr 12, 2009 3:39 am
 
Forum: Cell Biology
Topic: A Calculus-Based Viewpoint for Negative Feedback
Replies: 3
Views: 2275

Cell Structures

I don't think that's the major determinant, though I suppose it can contribute to size limitation. Usually cells will grow until they touch another cell or group of cells, and then they stop growing. This is called contact inhibition and ...

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by blcr11
Fri Sep 12, 2008 12:12 am
 
Forum: Cell Biology
Topic: Cell Structures
Replies: 13
Views: 1930

Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... OF BIOLOGICAL CHEMISTRY Vol. 279, No. 33, Issue of August 13, pp. 34091–34094, 2004 Zhang J. (2003). Evolution of the Human ASPM Gene, a Major Determinant of Brain Size. Genetics 165: 2063–2070 (December 2003)

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by bluecafe669
Tue Apr 15, 2008 12:50 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 18
Views: 12463

A question about Protein

... residues are on the surface—though most of the latter are solvent-accessible. But the distribution of polar/non-polar residues isn’t the only determinant of solubility. And then there’s also the question of how soluble is soluble? The real “determinant”—so far as solubility in simple aqueous ...

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by blcr11
Wed Jul 11, 2007 4:06 pm
 
Forum: Molecular Biology
Topic: A question about Protein
Replies: 4
Views: 670

The Fiber Disease

... responsible for synthesizing the enzyme and utilizing the hydrolytic products. For enzymatic hydrolysis of natural celluloses, several determinants of hydrolysis rate have been proposed, including crystallinity, degree of polymerization, particle size, pore volume, and accessible surface ...

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by Nadas Moksha
Wed Dec 20, 2006 9:34 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748679
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