The Poincaré plot is a popular two-dimensional, time series analysis tool because of its intuitive display of dynamic system behavior. Poincaré plots have been used to visualize heart rate and respiratory pattern variabilities. However, conventional quantitative analysis relies primarily on statistical measurements of the cumulative distribution of points, making it difficult to interpret irreg...

Three crude oil bioremediation techniques were applied in a randomized block field experiment simulating a coastal oil spill. Four treatments (no oil control, oil alone, oil plus nutrients, and oil plus nutrients plus an indigenous inoculum) were applied. In situ microbial community structures were monitored by phospholipid fatty acid (PLFA) analysis and 16S rDNA PCR-denaturing gradient gel ele...

As human populations encroach on more remote areas, tree plantations are frequently converted into suburban developments or conservation lands. The purpose of the current study was to compare the effects of restoration treatments on the abundance and biodiversity of two former pine plantations in northeast Florida. Restoration methods, which varied greatly in both environmental impact and effor...

In conflict tasks, the irrelevant stimulus attribute needs to be suppressed for the correct response to be produced. In the Simon task, earlier researchers have proposed that this suppression is the reason that, after an initial increase, the interference effect decreases for longer RTs, as reflected by late, negative-going delta plots. This view has been challenged by observations of positive-...

A small-plot field trial was conducted to examine the area of influence of fipronil at incremental distances away from treated plots on the Harrison Experimental Forest near Saucier, MS. Small treated (water and fipronil) plots were surrounded by untreated wooden boards in an eight-point radial pattern, and examined for evidence of termite feeding every 60 d for 1 yr after treatment. Circular a...

This article presents the first models developed specifically for understanding the infiltration and interdiction of ongoing terror plots by undercover intelligence agents, and does so via novel application of ideas from queueing theory and Markov population processes. The resulting “terror queue” models predict the number of undetected terror threats in an area from agent activity/utilization ...

A small-plot Þeld trial was conducted to examine the area of inßuence of Þpronil at incremental distances away from treated plots on theHarrison Experimental Forest near Saucier, MS. Small treated (water and Þpronil) plots were surrounded by untreated wooden boards in an eightpoint radial pattern, and examined for evidence of termite feeding every 60 d for 1 yr after treatment. Circular areas o...