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(Science: microscopy) thin glass, plastic, sapphire, SiO, NaCl, etc. Shaped into circles, squares, or rectangles for covering the specimen. Glass coverslips, grade no. 1 1/2, contain a high proportion of covers from 0.17 to 0.18 mm in thickness, close to the lens designer's specifications for employment of achromatic and apochromatic objectives of high numerical aperture. The thickness and refractive index of the glass coverslip are important because certain of their values have been assumed by the designer and manufacturer. These values have been specified by ASTM: thickness, commercial number 1 1/2: 0.16 to 0.19 mm, refractive index measured at the sodium D lines (589.3 nm), 1.523(0.005).

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Fall Hunting Season In Illinois 2008: Preview

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by goosecanadaca
Sat Oct 04, 2014 5:04 am
Forum: Cell Biology
Topic: Fall Hunting Season In Illinois 2008: Preview
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Views: 20

Canada Goose Egg Addling

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by goosecanadaca
Sat Oct 04, 2014 4:51 am
Forum: Cell Biology
Topic: Canada Goose Egg Addling
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Views: 17

Re: qPCR vs Northern Blot

... qPCR). @jonmoulton - you're rigth first - in Northern blot I had silencing, in qPCR i didn't. As far as your question is concerned - my NB probe covers whole length of mRNA - all exons (it's a short one ~2 kbp total). In case of my PCR primers - FORWARD primer binds in one exon in the middle ...

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by Nevthonien
Tue Nov 12, 2013 2:47 pm
Forum: Molecular Biology
Topic: qPCR vs Northern Blot
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the cultivation of genetics and DNA of Kazakhs people

and recently one of the Japan biology scientist states this is a very good tradition and this covers other benefits, too.

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by kazakh7
Wed Jun 19, 2013 6:37 pm
Forum: Human Biology
Topic: the cultivation of genetics and DNA of Kazakhs people
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Views: 4608

How to maintain sterility while preparing petri dishes

... in both of them. I heat up the agar by boiling it and I held the plates in boiling water just before pouring the agar into them. I try to open the covers a minimal amount while pouring the agar. I put a rubber band around each once I'm done pouring. I'm not sure what else I can do to get a sterile ...

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by animus
Thu Jun 13, 2013 10:42 pm
Forum: Microbiology
Topic: How to maintain sterility while preparing petri dishes
Replies: 8
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