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A study of dimensional crossover in multilayers
Physica C: Superconductivity, 1993Abstract The superconductivity of YBa 2 Cu 3 O 7 PrBa 2 Cu 3 O 7 ( YBCO PBCO ) multilayers has been studied under parallel and perpendicular magnetic fields H ranging from 0 to 7 T. The resistive transitions of the selected [ YBCO PBCO ]s of 48 A 100 A and 48 A 12 A ...
L. L. Li +7 more
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Testing Crossover Studies for Carryover Effects
Angiology, 1989For 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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A Study on the Utility of Parametric Uniform Crossover for Adaptation of Crossover Operator
2012The parametric uniform crossover is a general form of the uniform crossover operator by which the swapping probability of each locus could be controlled. The swap probability could control the amount of disruption of high order hyper planes. Several variations of selecto-recombinative genetic algorithms are proposed for controlling the swap probability
Ahamad Tajudin Khader, Farhad Nadi
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A comparative study of modified crossover operators
2015 Third International Conference on Image Information Processing (ICIIP), 2015Genetic Algorithms (GA) are based on natural evolution theory called ‘Darwin's Theory of Evolution’. In the area of optimization and search problems the genetic algorithm can work efficiently and give better results. This paper presents traditional single point, two point and uniform crossover operators with cyclic technique to solve the Travelling ...
Anju Bala, Aman Kumar Sharma
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Effect of Crossover on the Statistical Power of Randomized Studies
The Annals of Thoracic Surgery, 1989Randomized studies involving long-term follow-up are vulnerable to the effects of unplanned crossover. In surgical studies, such crossover usually occurs when control patients become more symptomatic and undergo operation. In several large studies of coronary bypass grafting, crossover ranged from 25% to 38%.
Gerald S. Weinstein +2 more
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Peak Pressures: Crossover Study of Timolol and Latanoprost
European Journal of Ophthalmology, 2003Purpose To compare the diurnal efficacy and action on peak intraocular pressures (IOP) of 0.005% latanoprost and 0.5% timolol as primary therapy in 60 eyes having dark brown irides with primary open angle glaucoma (POAG). Methods A prospective, comparative, observer-masked, crossover, interventional trial including the mean of both eyes of 30 patients ...
Rohit Saxena +4 more
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Dynamical Temperature Study for Spin-Crossover
AIP Conference Proceedings, 2008Making use of the Rugh's dynamical and micro‐canonical approach to temperature, we study the classical model of three dimensional spin‐crossover compounds. These compounds are characterized by magnetic ions that can be in a high‐spin or low‐spin state. We consider the case of diamagnetic low‐spin state which are appropriate for Fe‐Co compounds.
W. B. Nurdin +7 more
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Time-stratified case-crossover studies for aggregated data in environmental epidemiology: a tutorial
International Journal of EpidemiologyThe case-crossover design is widely used in environmental epidemiology as an effective alternative to the conventional time-series regression design to estimate short-term associations of environmental exposures with a range of acute events.
A. Tobías, Yoonhee Kim, L. Madaniyazi
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