Knowing the conserved quantities that a galaxy's stellar orbits conform to is important in helping us understand distribution and structures within galaxy. Isolating integrals of motion resonances are particularly important, non-isolating less so. We compare behavior results two methods for counting number quantities, one based on correlation integral approach other more recent method using mac...

Abstract Limestone wastes have accumulated in large quantities countries all over the world. To reduce this materials work is presented. The goal of paper to study influence limestone powder on physical and mechanical fired clay bricks. It as replacement clay, varying content 5, 10, 15 20 wt % . water / soil ratio constant 0.3. Three stages firing are presented achieve maximum temperature. firs...

BACKGROUND Xenobiotic chemicals with estrogenic activity (EA), such as bisphenol A (BPA), have been reported to have potential adverse health effects in mammals, including humans, especially in fetal and infant stages. Concerns about safety have caused many manufacturers to use alternatives to polycarbonate (PC) resins to make hard and clear, reusable, plastic products that do not leach BPA. Ho...

Nonstandard analysis is the branch of mathematics concerned with constructing a number system that includes infinitesimals. These are numbers smaller than any real number yet still greater than zero. Although nonstandard analysis was developed in 1966 by Abraham Robinson, it is based off of Gottfried Wilhelm Leibniz’s construction of the calculus, created some 300 years earlier. Nonstandard ana...