Dictionary » D » Densities

Densities

Density

1. (Science: radiology) The amount of darkness or light in an area of a scan reflects the compactness and density of tissue. Differences in tissue density are the basis for CT and MR scans.

2. (Science: microscopy) logarithm to the base 10 of the reciprocal of transmittance.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Re: Caffeine Coursework

... in the basal ganglia, an area that plays a critical role in behavior control, but can be found in other parts of the brain as well, in lower densities. There is evidence that A 2A receptors interact with the dopamine system, which is involved in reward and arousal. (A2A receptors can also ...

See entire post
by red.ninja13
Sun Mar 22, 2009 7:39 pm
 
Forum: Human Biology
Topic: Caffeine Coursework
Replies: 3
Views: 864

Statistical Analysis for Two Birds Counting Methods

... some asummptions that i dont think im going to fulfill for all my samples. All that kind of tests compare means so i have to use proportions or densities but make a lot of data standarized (arbitrary). For example i have read some papers that compare point counts and mist nets using an analizing ...

See entire post
by evelingtavera17
Fri Dec 19, 2008 4:20 pm
 
Forum: Ecology
Topic: Statistical Analysis for Two Birds Counting Methods
Replies: 1
Views: 1012

Genes effected by global warming? Good proposal? Feedbck pls

... proposal for my physiological ecology class, and I'm just wondering if this makes sense? Proposal: Northern pocket gophers have low population densities, stick close to home, and are fiercely territorial, while Montane voles live in high-density populations and range more widely. For gophers, ...

See entire post
by emmiebio
Sat Nov 17, 2007 6:10 pm
 
Forum: Ecology
Topic: Genes effected by global warming? Good proposal? Feedbck pls
Replies: 2
Views: 1118

what is the phase problem? x ray crystallography

In order to calculate electron densities from a diffraction experiment you need three pieces of information, only two of which can be determined directly by the experiment. Those three things are the indicies of a reflection (h,k,l), the ...

See entire post
by blcr11
Sat Aug 25, 2007 6:26 pm
 
Forum: Bioinformatics
Topic: what is the phase problem? x ray crystallography
Replies: 4
Views: 4924

The Fiber Disease

... of the cytophilic islands grows, both the fraction of islands with cells attached and the number of cells adhered to each island increase. High densities of cell adhesion and single cell attachment per island were achieved with a 25 microm pattern size. Over time, the cells spread over the 5 ...

See entire post
by Nadas Moksha
Sat Dec 09, 2006 7:58 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748640
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 550 times. 
What links here | Related changes | Permanent link