The paper by Jenkins et al. (6) provides interesting data on Cryptosporidium parvum oocyst permeability and survival. The vital dye assay (4) relies upon oocyst permeability and exhibits limitations, especially in assessment of disinfectant efficacy (3). However, it is rewarding to note that it is considered to have utility and can provide pertinent data. Although we agree with many points addr...

In classical time domain Box-Jenkins identification discrete-time plant and noise models are estimated using sampled input/output signals. The frequency content of the input/output samples covers uniformly the whole unit circle in a natural way, even in case of prefiltering. In Ljung (1999) the time domain Box-Jenkins framework has been extended to frequency domain data captured in open loop on...

Abstract—The objective of this research is to forecast the monthly exchange rate between Thai baht and the US dollar and to compare two forecasting methods. The methods are Box-Jenkins’ method and Holt’s method. Results show that the Box-Jenkins’ method is the most suitable method for the monthly Exchange Rate between Thai Baht and the US Dollar. The suitable forecasting model is ARIMA (1,1,0) ...

The head of a gorgon—page 6 On a recent visit to London I had the privilege to meet Dr Ian Jenkins the current Curator of Greek and Roman Antiquities at the British Museum. Dr Jenkins is one of world’s leading authorities on the subject of the Ionic Frieze of the Parthenon in Athens. He is also a foremost historian of a great debate, whether collections of classical sculpture are to be properly...

This study identified stable components of Type A behavior as usually defined, and examined their relationships with more traditional psychological constructs. Overall scores on the most popular Type A measure (a version of the Jenkins Activity Survey) were moderately associated with ambition but largely unrelated to measures of adjustment. An item analysis yielded s~~bcomponents of Drivenness ...

In an e€ort to forecast daily maximum ozone concentrations, many researchers have developed daily ozone forecasting models. However, this continuing worldwide environmental problem suggests the need for more accurate models. Development of these models is dicult because the meteorological variables and photochemical reactions involved in ozone formation are complex. In this study, a neural net...

The holy grail of obesity research is a simple, single solution that could stem the tide of this epidemic. But research we published in PLOS ONE today shows that this is an implausible, if not impossible, goal. Disciplines Medicine and Health Sciences | Social and Behavioral Sciences Publication Details Jenkins, A. & Campbell, L. (2013). Genetic research shows single approach to obesity won't w...