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Constant change equals constant challenge

Nursing Management (Springhouse), 2003
Keep your staff up-to-date by posting changes to policies and procedures in your department.
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alfa: a constant that is not a constant?

2003
We review the observational information on the constancy of the fine structure constant a . We find that small improvements on the measurement of 187 Re lifetime can provide significant progress in exploring the range of variability suggested by QSO data. We also discuss the effects of a time varying a on stellar structure and evolution.
FIORENTINI, Giovanni, RICCI, Barbara
openaire   +1 more source

The Hubble Constant

Science, 1992
The Hubble constant is the constant of proportionality between recession velocity and distance in the expanding universe. It is a fundamental property of cosmology that sets both the scale and the expansion age of the universe. It is determined by measurement of galaxy radial velocities and distances.
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Constant Constants?

Science, 2008
openaire   +1 more source

Why Is the A-Constant Not a Constant?

Journal of Cataract and Refractive Surgery, 2003
Maged S. Habib   +2 more
openaire   +1 more source

A two per cent Hubble constant measurement from standard sirens within five years

Nature, 2018
Hsin-Yu Chen   +2 more
exaly  

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