Recognition of biochemical education

Recognition of biochemical education

BIOCHEMICAL EDUCATION October 1973 Vol. 1 No. 4 81 Substituting (r2) in Equation (3a):V = 2 3~ 9"4n'ror/0 ldP - dm/ w'R ¢ 67trot/0/dp ' dm / ~2...

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BIOCHEMICAL EDUCATION

October 1973 Vol. 1 No. 4

81

Substituting (r2) in Equation (3a):V

=

2 3~ 9"4n'ror/0 ldP - dm/ w'R

¢ 67trot/0/dp

' dm / ~2R

Substituting f = 67rror?0 : -

0

w2R

Substituting 0 = M.V/N,

V

(ii)

dp = 1/V and f = RT/DN:-

M.V

l -dm/ 2R

M

£

N.f

t

=

(Eq. 3a')

6o2R

(Eq. 1)

MDRT/1. - v'dm / e°2R

(Eq. 2a)

71 - V.dm ~ 1

Conversion o f Equation (2a) to Equation ( 3 a ) : Clearly it is possible to retrace the steps shown above. The rationale is that we now require an entirely general form o f Equation (2a). Since (D) is relatively unimportant for some classes of particles (large ones), a useful first step towards a general equation is to replace ( D ) b y ~ f T / to yield Equation (1). The next rational step will be to replace (M) by an equivalent term which is applicable to all particles, nahaely (l~N/ff); if at the same time we equate dp with 1/re we arrive at Equation (3a') [but note the restriction on the equality dp = 1f17 indicated in footnote (4) to Addendum 1]. We now require to replace ( 0 by a quantity 07) which is more directly accessible by experiment and so substitute f = 6*rror?0; if at the same time we substitute (3 = -rnr 4 o, 3 we arrive immediately at Equation (3a).

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RECOGNITION OF BIOCHEMICAL EDUCATION

We were interested to see that Dr. Ivor Smith has been promoted Reader (equivalent to Associate Professor) in Biochemical Education with respect to his post at the Courtauld Institute of Biochemistry, Middlesex Hospital Medical School. We think that this is the first title of this kind. Dr. Smith is well known for his books on chromatography and other separation techniques and for his ingenious Biobits the comprehensible Models for macromolecules (see this Journal, VoL 1 No. 1 p. 9).

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ERRATUM

Some properties of an enzyme by D.F. Evered (Biochemical Education 1973, 1, 48). Under METHOD, read ". ..... as in Table~ Add 1 ml substrate solution to all the tubes and incubate them at 37°C with occasional mixing. Observe the dialysis bags for the development of a red colour".