Magnetite (Fe2+Fe3+2O4) is an iron-bearing mineral with magnetic properties. Mostly it obtained in its natural form. The purpose of our study to the effect magnetite on health. At first stage research, we carried out X-ray fluorescence and phase analyzes sand taken from beaches non-magnetic Black Sea coast, namely Ureki Chakvi. It can be seen research results that sands Chakvi differ compositio...

Now, we come to offer you the right catalogues of book to open. optimal design of blocked and split plot experiments is one of the literary work in this world in suitable to be reading material. That's not only this book gives reference, but also it will show you the amazing benefits of reading a book. Developing your countless minds is needed; moreover you are kind of people with great curiosi...

The Choice Between Fixed and Random Effects Models: Some Considerations for Educational Research We discuss fixed and random effects models in the context of educational research and set out the assumptions behind the two approaches. To illustrate the issues, we analyse the determinants of pupil achievement in primary school, using data from the Avon Longitudinal Study of Parents and Children. ...