Meta-analyses are increasingly used for synthesis of evidence from biomedical research, and often include an assessment of publication bias based on visual or analytical detection of asymmetry in funnel plots. We studied the influence of different normalisation approaches, sample size and intervention effects on funnel plot asymmetry, using empirical datasets and illustrative simulations. We fo...

P-p plots contain all the information that is needed for scaleinvariant comparisons. Indeed, Empirical Distribution Function (EDF) tests translate sample p-p plots into a single number. In this paper we characterize the set of all distinct p-p plots for two balanced sample of size  absent ties. Distributions of EDF test statistics are embedded in this set. It is thus used to derive the exact f...

.......................................................................................................................................... 1 Acknowledgements ......................................................................................................................... 2 Introduction .........................................................................................................

Environ. Entomol. 30(5): 939Ð946 (2001) ABSTRACT TaylorÕs power law (s a x ) was Þtted to the means and variances of numbers of adult Diaprepes abbreviatus L. and Pachnaeus litus (Germar) caught monthly in modiÞed Tedders traps (citrus Tedders traps). Data for D. abbreviatus were obtained in six Florida citrus groves, two located on the central ridge and the others in the central and southern ß...

the effects of irrigation methods, various levels of water and nitrogen fertilizer on quality of cotton were studied at hashemabad cotton research station of gorgan in 2008. the experiment was conducted in split-split plot design with three replications. irrigation methods of furrow and sprinkler were main plots, various levels of water of 0%, 33%, 66%, 100% and 133% were subplots plots and var...

The demonstration was conducted with aim to introduce new rate of blended fertilizer on maize crop and enhance farmers’ awareness toward practice. Sites host farmers selection were undertaken purposively by researcher jointly agricultural experts the corresponding woreda. carried out five one FTC’s field in each kebele, two plots per farmer’s fields used. Totally, 105 participants participated ...

Red imported Þre ants, Solenopsis invicta (Buren) (Hymenoptera: Formicidae), are an invasive species found in high densities throughout southeastern agricultural systems. We tested the hypothesis that Þre ants tend cotton aphids, Aphis gossypiiGlover (Homoptera: Aphididae), and thus release them from predation by lady beetle larvae, Coccinella septempunctata L. and Hippodamia convergens Guerin-...