نتایج جستجو برای: additive effect
تعداد نتایج: 1694315 فیلتر نتایج به سال:
Aalen’s additive hazards model has gained increasing attention in recently years because it model all covariate effects as time-varying. In this thesis, our goal is to explore the application of Aalen’s model in assessing treatment effect at a given time point with varying covariate effects. First, based on Aalen’s model, we utilize the direct adjustment method to obtain the adjusted survival o...
In this study, polyester composites reinforced with pistachio shells powder (P.) an averagediameter (150 – 200 μm) different weight ratios (0.5%, 1%, 1.5%, 2%, and 2.5%) wereprepared to the resin. The Shore D hardness, thermal conductivity (K), glass transitiontemperature (Tg) of samples were examined. results showed that hardnessincreases increase reinforcement ratio its maximum value is (87.5...
BACKGROUND The interaction of sevoflurane and opioids can be described by response surface modeling using the hierarchical model. We expanded this for combined administration of sevoflurane, opioids, and 66 vol.% nitrous oxide (N2O), using historical data on the motor and hemodynamic responsiveness to incision, the minimal alveolar concentration, and minimal alveolar concentration to block auto...
K1 strain of Plasmdoium falciparum is resistant in vitro to chloroquine, pyrimethamine and sulfadoxine. Response of this strain to combinations of antimalarial drugs in the in vitro hypoxanthine incorporation test was coupled with that of a line of strain NF54 relatively sensitive to chloroquine and fully sensitive to other antimalarials. Pyrimethamine and sulfadoxine showed potentiative synerg...
Directional epistasis describes a situation in which epistasis consistently increases or decreases the effect of allele substitutions, thereby affecting the amount of additive genetic variance available for selection in a given direction. This study applies a recent parameterization of directionality of epistasis to empirical data. Data stems from a QTL mapping study on an intercross between in...
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