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Celebrating Charles Darwin (1990)

HARRISON, K. R.

[s.l.] : Nature Publishing Group

Nature 347 (1990), S. 509-509

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ISSN: 1476-4687

Source: Nature Archives 1869 - 2009

Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics

Notes: [Auszug] SIR-It has recently come to light that Britain has fewer public holidays than many other countries. Your readers may wish to know that we have formed a Forum to Instate a Charles Darwin Day. It seems to us fitting that Britain should have a regular public holiday to commemorate the man who first ...

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1038/347509d0

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Embryotoxicity of micropore filters used in liquid sterilization (1990)

Harrison, K. L. ; Sherrin, D. A. ; Hawthorne, T. A. ; [et al.]

Springer

Journal of assisted reproduction and genetics 7 (1990), S. 347-350

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ISSN: 1573-7330

Keywords: filter sterilization ; culture media ; embryotoxicity

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract Microfiltration is the usual method of sterilization of tissue culture media. The filtrates of eight commercial filters were tested for embryotoxicity using mouse embryo growth. Four of five disk filters tested showed embryotoxicity in the first 5 ml of filtrate and the three largercapacity filters showed embryotoxicity for up to the first 10 ml of filtrate. The ethylene oxide-sterilized filters appeared to give poorer results than the gamma-irradiated filters. The importance of discarding the initial filtrate or preflushing such filters before use is emphasized.