Sentences with phrase «subsequent studies failed»

Three subsequent studies failed to find any improvement in survival rates.

Subsequent studies failed to resolve a companion star, both by speckle interferometry (Hartkopf and McAlister, 1983) and by radial velocity analysis (Marcy and Benitz, 1989).

This type of interpretation of the Coleman Report and subsequent studies fails on several grounds.

Not exact matches

A single, small, retrospective case - control study examined the use of newborn transient evoked otoacoustic emission hearing screening tests as a tool for identifying infants at subsequent risk of SIDS.343 Infants who subsequently died from SIDS did not fail their hearing tests but, compared with controls, showed a decreased signal - to - noise ratio score in the right ear only (at frequencies of 2000, 3000, and 4000 Hz).

But the study also found that greater amounts of initial success failed to produce greater subsequent success.

Although the initial study reported a link between RNAse L - variant prostate cancer and XMRV infection, most, but not all, subsequent studies have failed to detect such an association [9], [10], [11], [12].

However, subsequent studies carried out on small numbers (20 — 30) of CFS patients, failed to confirm evidence for HTLV (type 1 or 11)[22]--[25] or other retroviruses, including the closely - related simian T lymphotropic virus type l, the prototype foamy virus, simian retrovirus, bovine and feline leukaemia viruses [26] and HIV - 1 [23].

The data reported were based on one patient and, despite 67 years of subsequent studies that failed to establish scientific support for this theory, we are still faced with reluctance to treat men with testosterone supplementation for fear of giving them prostate cancer or fueling prostate cancer already present at a subclinical or microscopic level.

In the state under study, public schools that had failed to make AYP focused instruction on the entire range of low - performing students in the subsequent school year, and did so without negative impact on high - performing students.

And a 2007 study by the Urban Institute found a failing grade led to subsequent and significant academic gains for students.