نتایج جستجو برای: carryover
تعداد نتایج: 1160 فیلتر نتایج به سال:
BACKGROUND In randomized trials of primary prevention, there has been interest in the persistence of a beneficial effect of therapy after treatment has been stopped. We investigated the impact of measurement error in the outcome on results of the trial of preventing hypertension (TROPHY), a trial of candesartan vs. placebo for preventing hypertension in prehypertensive subjects. METHODS We si...
In this paper, a new fix-and-optimize (FO) approach is proposed for two dynamic multi-level capacitated lot sizing problems (MLCLSP), the MLCLSP without setup carryover and the MLCLSP with setup carryover. Given an MIP model of a lot sizing problem, the approach iteratively solves a series of subproblems of the model until no better solution can be found. Each sub-problem re-optimizes a subset ...
Using a short-term recognition memory task, the authors evaluated the carryover across trials of 2 types of auditory information: the characteristics of individual study sounds (item information) and the relationships between the study sounds (study set homogeneity). On each trial, subjects heard 2 successive broadband study sounds and then decided whether a subsequently presented probe sound h...
We report a one-pot, closed-vessel enzymatic assay that eliminates carryover contamination while preserving robust DNA amplification in loop-mediated isothermal amplification (LAMP), providing reliable and rapid detection of target DNA in contaminated samples.
Most toxicology studies focus on effects of contaminants during exposure. This is disconcerting because subsequent survival may be affected. For instance, contaminant-induced mortality can be later ameliorated by reduced competition among the survivors, a concept we refer to as "density-mediated compensation." Alternatively, it can be exacerbated by toxicant effects that persist or appear after...
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