Erratum: Appl Phys B 72, 667–675 (2001) DOI 10.1007/s003400100574 Published online: 30 April 2001

Research Activities #248, April 2001

the Agency for Healthcare Research and Quality and the National Institute of Child Health and Human Development indicates that in most cases, inserting tubes in the eardrums—a procedure called tympanostomy— of children under age 3 who have fluid in the middle ear has no measurable effect on improving their speech, language, cognitive, or psychosocial development at age 3. Fluid in the middle ea...

0619 - 4324 April 2001 ALBERTIANA

Published online April 11 , 2005

ep ro du ce d fr om S oi l S ci en ce S oc ie ty o f A m er ic a Jo ur na l. P ub lis he d by S oi l S ci en ce S oc ie ty o f A m er ic a. A ll co py rig ht s re se rv ed . best accomplished through the use of paired designs and SOIL CARBON CHANGES AFTER that the chance of detecting a significant change was 26 YEARS IN A CUMBERLAND enhanced by disturbance and the passage of time. Similarly, Ri...

World Health Day, 7 April 2001.

Assimilation Techniques ( 4 ) : 4 dVar April 2001

2. COMPARISON BETWEEN THE ECMWF 3DVAR AND 4DVAR SYSTEMS The ECMWF 4dVar system is, from the technical point of view, very similar to the 3dVar system. Both systems use the same unix scripts, and share much of the Fortran code. The same background error covariance matrix and observation operators are used, and most of the peripheral tasks such as fetching and archiving of fields and observations...