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  EDline Vol. 8, no. 10    (17 February 2003)

  Editorial mailing list (digest version)
  Published by the Electric Editors
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  Contents:

         Q & A
  [2xi]  Correct spelling of 'rhombicosidodecahedron'?
  [2xj]  Strike rates in cricket
  [2xk]  Formula for daily energy requirements?

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---[2]-- Q & A --------------------------------------------------

** [2xi] Correct spelling of 'rhombicosidodecahedron'?

         Date: Mon, 3 Feb 2003
         From: Anna McCormack, mccormack@goulburn.net.au

Can some kind persons help with this question, arising from a
maths textbook at an urgent stage:

  How do you spell 'rhombicosidodecahedron'? Should it start
  'rhombo' before the 'icosi'? Should the 'icosi' be 'icosa'? (My
  maths dictionary isn't up to this, and we won't bother asking
  the spell checker.)


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** [2xj] Strike rates in cricket

         Date: Mon, 3 Feb 2003
         From: Anna McCormack, mccormack@goulburn.net.au

Can some kind persons help with this question, arising from a
maths textbook at an urgent stage:

  What is a 'strike rate' in cricket? Is it something per 100
  balls? Is it counted in runs?


         ---------------------
         Date: Mon, 3 Feb 2003
         From: Iwan Thomas, iwan@iwanthomas.plus.com

It's the number of runs scored per hundred balls for a batsman
(usually expressed as a percentage), and the average number of
balls bowled per wicket taken by a bowler.

Iwan Thomas (possibly the only qualified cricket umpire on the
list ... )


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** [2xk] Formula for daily energy requirements?

         Date: Mon, 3 Feb 2003
         From: Anna McCormack, mccormack@goulburn.net.au

Can some kind persons help with this question, arising from a
maths textbook at an urgent stage:

  Dieticians have a formula for calculating a person's daily
  energy requirement (E), which goes:

     E = BEE x A x I

  where BEE is a factor linking sex, age, weight, height in
  metric units; A is an activity factor; I is an injury factor.
  I think this formula gives an answer in calories and needs a
  factor x 4.187 to bring it to kJ.

Is anyone familiar with it?


         -----------------------
         Date: Thurs, 6 Feb 2003
         From: Merv Littmann, mervynn@ozemail.com.au

I asked a dietician your question, and she replied:

  To answer your question, the following is a formula (Harris
  Benedict Equation) for calculating Resting Energy Expenditure
  (REE):

  Women
  REE (kj) = 2741 + 40W + 7.74H - 28.35A
  REE (kcal) = 655 + 9.56W + 1.85H - 4.68A

  Men
  REE (kj) = 278 + 57.5W + 7.74H - 19.56A
  REE (kcal) = 66.5 + 13.75W + 5H - 6.78A

  A= age; W= weight in kilograms; H= height in centimeters

  To calculate Energy Allowances, REE is multiplied by an
  activity factor (AF) appropriate to age and gender.

  AGE            Women           Men
  19-24          1.60            1.67	
  25-50          1.55            1.60
  51-75          1.50            1.50

  If a person has heavy activity patterns, their Energy Allowance
  should be adjusted to 2.0 x REE or higher.

Hope that helps.


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