In the lac adaptive mutation system of Cairns, selected mutant colonies but not unselected mutant types appear to arise from a nongrowing population of Escherichia coli. The general mutagenesis suffered by the selected mutants has been interpreted as support for the idea that E. coli possesses an evolved (and therefore beneficial) mechanism that increases the mutation rate in response to stress...

BG-Sentinel mosquito traps were trialed as a tool for the rapid assessment (24-h collections) and routine monitoring (72-h collections) of adult Aedes aegypti L. populations in north Queensland. Analysis of Ae. aegypti collections using BG-Sentinels set in suburban Cairns for 24 h permitted the calculation of sample size for a range of precision levels. Clusters of houses with BG-Sentinels oper...

underlying developmental research are often only implicit, yet they guide data collection and interpretation of results. For example, a number of researchers have provided data concerning intercorrelations among behaviors presumed to be indices of attachment (e.g., Coates, Anderson & Hartup 1972; Maccoby & Feldman 1972). Noting that such "index" behaviors do not intercorrelate highly, do not sh...

A thrackle is a graph drawing in which every pair of edges meets exactly once. Conway's Thrackle Conjecture states that the number cannot exceed its vertices. Cairns et al. (2015) [1] prove holds for great-circle thrackles drawn on sphere. They also posit can be restated to say as plane if and only it admits drawing. We demonstrate class thrackleable graphs excludes some trees. Thus informal co...

Many actuarial science researchers on stochastic modeling and forecasting of systematic mortality risk use Cairns-Blake-Dowd (CBD) Model (2006) due to its ability consider the cohort effects. A three-factor model has three parameters that describe trends over time when dealing with future behaviors. This study aims predict model, kt(2) by applying Recurrent Neural Networks within a Short-Term L...

Abstract The small amplitude ion-acoustic solitary waves in the magneto-rotating plasma consisting of cold fluid ions, hot positrons, and two-temperature electrons (cold electrons) are investigated when obey a modified Cairns-Tsallis distribution. By using reductive perturbation method, we derive Korteweg–de Vries equation obtain wave solutions. dependences solutions on nonextensive q -paramete...

R adiosurgery is aminimally invasive technique designed by Lars Leksell to deliver a destructive amount of radiation to intracranial lesions that may be inaccessible or unsuitable for open surgery. Undoubtedly, the experiences of delivering ether anesthesia to neurosurgical patients for Dr. Olivecrona motivated Leksell to develop a techniquewith fewer complications than open surgery. A passage ...

Reproductive isolation between closely related species is often incomplete. The Western honeybee, Apis mellifera, and the Eastern hive bee, Apis cerana, have been allopatric for millions of years, but are nonetheless similar in morphology and behaviour. During the last century, the two species were brought into contact anthropogenically, providing potential opportunities for interspecific matin...