Results 261 to 270 of about 174,425 (315)

Comparative evaluation of pediatric patient comfort, time, and preference between digital scans and rubber base impressions: crossover study randomized controlled trial. [PDF]

BMC Oral Health
Gamal AM, Abd Elfatah YAM.
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Structural studies of spin crossover systems

, 1984
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Regional blood flow signatures of opioidergic modulation of ketamine in major depressive disorder: a randomised crossover study

Jelen LA, O’Daly O, Zelaya FO, Stone JM, Young AH, Mehta MA.   +5 more
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Crossover studies with survival outcomes

Statistical Methods in Medical Research, 2011
Crossover designs are well known to have major advantages when comparing the effect of two treatments which do not interact. With a right-censored survival endpoint, however, this design is quickly abandoned in favour of the more costly parallel design.
Jozefien, Buyze, Els, Goetghebeur
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Crossover Studies with Continuous Variables: Power Analysis

American Journal of Therapeutics, 2002
The crossover design is a sensitive means of determining the efficacy of new drugs because it eliminates between-subject variability. However, if the response in the first period carries on into the second (carryover effect) or if time factors cannot be kept constant in a lengthy crossover (time effects), its statistical power may be jeopardized.
Cleophas, T. J. M., Zwinderman, A. H.
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Angled transscleral intravitreal injection: a crossover study

European Journal of Ophthalmology, 2014
Purpose The perfect intravitreal injection delivers an exact amount of medication with the least risk to vision and the eye. We examined 2 different methods of intravitreal injection to determine if an angled transscleral entry for intravitreal injection results in less egress of intravitreal contents, including medication.
Mitul C, Mehta, Paul T, Finger
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STUDY IN CROSSOVER FRIES MIGRATION

Organic Preparations and Procedures International, 1992
(1992). STUDY IN CROSSOVER FRIES MIGRATION. Organic Preparations and Procedures International: Vol. 24, No. 6, pp. 687-690.
R. N. Khanna, K. P. Singh, Jyotsana Sharma   +2 more
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Study of active crossover network

Nigerian Journal of Physics, 2009
An active crossover network system has been realized using an active component LF356 with a JFET input. The net work has two drives, the low frequency drive (Bass) and the high frequency drive (Treble). It employs high level crossover technique. The circuit performance was adequately verified and the frequency response of the system has covered the ...
Tyona, MD, Akande, SFA
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Testing Crossover Studies for Carryover Effects

Angiology, 1989
For the study of cardiovascular disease, for instance, hypertension and angina pectoris, properly de signed crossover studies are to be preferred over parallel-design stud ies. Many statisticians now propose that these studies should always be tested for carryover effects.
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The case-crossover study design in pharmacoepidemiology

Statistical Methods in Medical Research, 2009
In the study of the association of transient drug exposures with acute outcomes, the case-crossover design is an efficient alternative to the case-control approach. This design based exclusively on the case series uses within-subject comparisons of drug exposures over time to estimate the rate ratio of the outcome associated with the drug under study.
Joseph A 'Chris', Delaney, Samy, Suissa
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