This book is part of a two volume set which presents the analysis of nonlinear phenomena as a long-standing challenge for research in basic and applied science as well as engineering. It discusses nonlinear differential and differential equations, bifurcation theory for periodic orbits and global connections. The integrability and reversibility of planar vector fields and theoretical analysis of classic physical models are sketched. This first volume concentrates on the mathematical theory and computational techniques that are essential for the study of nonlinear science, a second volume deals with real-world nonlinear phenomena in condensed matter, biology and optics.

Sludge treatment and disposal is the sixth volume in the series Biological wastewater treatment. The book covers in a clear and didactic way the sludge characteristics, production, treatment (thickening, dewatering, stabilisation, pathogens removal) and disposal (land application for agricultural purposes, sanitary landfills, landfarming and other methods). Environmental and public health issues are also fully described. The Biological Wastewater Treatment series is based on the book Biological Wastewater Treatment in Warm Climate Regions and on a highly acclaimed set of best selling textbooks. This international version is comprised by six textbooks giving a state-of-the-art presentation of the science and technology of biological wastewater treatment. Other books in the Biological Wastewater Treatment series: Volume 1: Wastewater characteristics, treatment and disposal Volume 2: Basic principles of wastewater treatment Volume 3: Waste stabilisation ponds Volume 4: Anaerobic reactors Volume 5: Activated sludge and aerobic biofilm reactors Volume 6: Sludge treatment and disposal

This book is part of a two volume set which presents the analysis of nonlinear phenomena as a long-standing challenge for research in basic and applied science as well as engineering. It discusses nonlinear differential and differential equations, bifurcation theory for periodic orbits and global connections. The integrability and reversibility of planar vector fields and theoretical analysis of classic physical models are sketched. This first volume concentrates on the mathematical theory and computational techniques that are essential for the study of nonlinear science, a second volume deals with real-world nonlinear phenomena in condensed matter, biology and optics.

The F tima Incident of 1917 was a critical event in the history of the paranormal. Believers and skeptics have long pondered the identity of Our Lady of F tima, the brilliant entity who appeared above F tima. Was she the Virgin Mary, sharing divine secrets with believers? Was she an angel, bringing a message of peace to a world at war? Or was she an alien being, inspiring humanity to look up and contemplate the mystery of the Cosmos? Now, in F tima Revisited, an international panel of top scholars subjects the legendary apparitions of F tima - widely regarded as a sacred religious event - to the scrutiny of modern scientific analysis; explores the connections between encounters with apparitions, angels, and aliens; and proposes a new paradigm for such unexplained phenomena. This third volume in the acclaimed trilogy, which includes the definitive histories of the F tima case entitled Heavenly Lights and Celestial Secrets, is the result of a transdisciplinary study by the Multicultural Apparitions Research International Academic Network (Project MARIAN) at the University Fernando Pessoa in Porto, Portugal.