نتایج جستجو برای: crossover trial
تعداد نتایج: 343534 فیلتر نتایج به سال:
INTRODUCTION Of all forms of stroke, spontaneous intracerebral haemorrhage (ICH) causes the highest morbidity and mortality. The Surgical Trial in Intracerebral Haemorrhage (STICH) found no difference in outcomes between patients randomized to surgical or conservative treatment. PATIENTS AND METHODS Of 530 patients randomized to initial conservative treatment, 140 crossed over to surgery. Thi...
Previous efforts in applying fitness distributions of Gaussian mutation for optimizing simple neural networks in the XOR problem are extended by conducting a similar analysis for three types of crossover operators. Onepoint, two-point, and uniform crossover are applied to the best-evolved neural networks at each generation in an evolutionary trial. The maximum expected improvement under Gaussia...
BACKGROUND Chemoprevention crossover trials of tea can be more efficient than parallel designs but the attrition and compliance rates with such trials are unknown. METHODS Attrition (dropouts) and compliance with treatment were assessed in a 25-week randomized, placebo controlled, crossover, feasibility clinical trial of four tea treatments to investigate the effect of tea on oral cancer biom...
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