Dictionary » S » Spectral



1. Of or pertaining to a specter; ghosty. He that feels timid at the spectral form of evil is not the man to spread light. (F. W. Robertson)

2. (Science: optics) Of or pertaining to the spectrum; made by the spectrum; as, spectral colours; spectral analysis. Spectral lemur.

(Science: zoology) See tarsius.

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Stem Cells/Differentiation

... out.."put them in a different ENVIRONMENT and get a different outcome". Stem cells differentiate into cell-types relative to their SPECTRAL ENVIRONMENT. (Relative to the quanta frequency/frequencies they receive at that specific locus). Shine a specific low level (~5J/cm/cm) coherent ...

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by BruceAtkins
Tue Jun 04, 2013 4:21 am
Forum: Cell Biology
Topic: Stem Cells/Differentiation
Replies: 5
Views: 5651

Differentially Label

... to give different colors. T and U are not fluorescent by themselves, but if a fluorescent moiety is attached to them (obviously with different spectral properties) they will be easy to separate. Handy list of different fluorophores here: http://en.wikipedia.org/wiki/Fluorophore One thing they ...

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by canalon
Wed Feb 09, 2011 2:29 am
Forum: Molecular Biology
Topic: Differentially Label
Replies: 3
Views: 2461

Re: Calcium ions in the Cell

... so the gradient is nearly 10,000 times. The calcium fluorescent dyes fluoresce when they bind to calcium ions (they have different emission spectral characteristics in the bound versus unbound state). These dyes, being non-lipophilic in nature, donot cross the cellular membranes. These dyes ...

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by nmremala
Sat May 01, 2010 7:52 am
Forum: Cell Biology
Topic: Calcium ions in the Cell
Replies: 4
Views: 7183


... emergent multicellular design . Is possible to tell how far light generation technology has advanced and possible vision morphology by unique spectral signatures of more efficient types that ionize gasses in the color range and intensity required of eye design . No matter how the memory system ...

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by GaryGaulin
Sat Apr 11, 2009 1:58 am
Forum: General Discussion
Topic: Intelligent Design?
Replies: 27
Views: 34885

wavelength specific LED luminaire for plant growth

... others) commonly used. LEDs are binned in wavelength groups and I want to get the right mix in a single luminaire in order to provide the best spectral output for plant growth/function. The advantages are: high efficiency no infra red radiation cool luminaires Can anyone help? I'm looking to ...

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by akb
Wed Jun 27, 2007 7:50 pm
Forum: Botany Discussion
Topic: Benifits of Blue & Red: Action/Absorption Spectrum, etc
Replies: 4
Views: 10250
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