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Cambridge.University.Press.The.Works.of.Archimedes.Volume.1.The.Two.Books.On.the.Sphere.and.the.Cylinder.Translation.and.Commentary.May.2004.pdf
Ngày tải lên :
21/09/2012, 11:00
... Propositions 17–20, measuring conical volumes.
Interlude Propositions 21–2, finding proportions holding with a
circle and an inscribed polygon.
Section 2: Main treatise
Chapter 5 Propositions 23–34, ... stretched to the limits and beyond: the mini-treatise at the end of the
work relies essentially upon conic sections; the notion of the exponent is ad-
umbrated in Proposition 8. Both treat geometrical ... are
both concave in the same direction and either one of them is wholly
contained by the other and by the straight <line> having the same
limits as itself, or some is contained, and some...
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Báo cáo Y học: Amidolytic activity of prostatic acid phosphatase on human semenogelins and semenogelin-derived synthetic substrates docx
Ngày tải lên :
24/03/2014, 00:21
... order conditions, using a substrate concentra-
tion far below the K
m
, as reported elsewhere [13]. Calcula-
tions were done usin g
ENZFITTER
software (Biosoft).
Excitation and emission wavelengths ... of
4
M
urea and a cocktail of inhibitors. T here was no
signi®cant degradation of semenogelins under these condi-
tions, which allow the rapid separation by centrifugation of
cellular components and ... the
glutamine±serine bond and the ®ltered fraction at the
serine±tyrosine bond, as shown by HPLC fractionation and
N-terminal sequencing. Part of the last ®ltered fraction was
puri®ed further...
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