It has had a more horrific and, in fact, totally unjustifiable historical effect and, even if it happened the way the Gospels and the Book of Acts describe it - which is doubtful - effects of this kind were and are wholly unjustified and reprehensible.
It is not certain how these changes may have affected this analysis, but it is doubtful the effect in the short term would be large.
The pharmacological effect is doubtful; a placebo effect is a more likely explanation.
But a quick Facebook poll shows that many people are doubtful that the effects "tanning" has had in the worlds of culture and marketing will be seen in the worlds of politics and privilege.
Given that the experiments conducted in this study were carried out at a light intensity approximately ten times the normal solar intensity on Earth, it is doubtful that the effect of light has significant consequences on the rate of pyrite oxidation in the environment.
Jo joins in with Rufus to torture the supposed "demon" out of a captured Sam with holy water and salt, but becomes doubtful when no demonic effects are present on Sam.
In contrast, it remains doubtful whether the positive effects of different modalities of ventilation are additive when they are simply combined [ 8].
The distance from the nearest vessels to the epithelium was higher in phyllodes tumors as compared with fibroadenomas and a hypoxic effect seems plausible here, although the effect is of doubtful biological significance.
A recent Cochrane systematic review (CD004388) records doubtful efficacy and serious adverse effects.
Given the imminent risk for bias from an unblended trial of surgery versus medical (conservative) treatment particularly acknowledging the potential of surgery to produce powerful placebo effects 32 76 77—is is doubtful that a rigorous trial of surgery can be conducted without a sham surgery control when the primary outcome is pain, patient-reported improvement or quality of life.
It is quite phony and its effect is rather doubtful.
