The influence of non-constant population sizes in evolutionary multi-objective optimization algorithms is investigated. In contrast to evolutionary single-objective optimization algorithms an increasing population size is considered beneficial when approaching the Pareto-front. Firstly, different deterministic schedules are tested, featuring different parameters like the initial population size...

Semiarid environments are drylands characterized by very little rain and high temperatures. In Mexico, these found in the center north of country. It is common to think that few species could exist hot, dry environments, but semiarid actually contain a great variety life forms. Insects called dung beetles one important example. Dung use manure (poop) excreted mammals as food source make their n...

this study aimed to investigate morphological changes of capparis deciduas and c. spinosa and their effects on nebkha formation. in order to examine the morphological changes of these plants, nine c. spinosa nebkhas of varying ages were randomly selected and size and number of adventitious roots, number of shoot and buds were counted. results showed that the dead and green parts of c. spinosa i...

interventional techniques aim to find safer and better ways to treat vascular diseases even in many instances, the interventional radiology solutions has been considered the only treatment option for the patients. interventional radiologists are specialists who perform minimally invasive procedures instead of surgery or other treatments. these procedures apply various imaging and catheterizatio...