Since the publication of the first edition (1994) there have been rapid developments in the application of hydrology, geomorphology and ecology to stream management. In particular, growth has occurred in the areas of stream rehabilitation and the evaluation of environmental flow needs. The concept of stream health has been adopted as a way of assessing stream resources and setting management goals. <p> <i>Stream Hydrology: An Introduction for Ecologists Second Edition</i> documents recent research and practice in these areas. Chapters provide information on sampling, field techniques, stream analysis, the hydrodynamics of moving water, channel form, sediment transport and commonly used statistical methods such as flow duration and flood frequency analysis. Methods are presented from engineering hydrology, fluvial geomorphology and hydraulics with examples of their biological implications. This book demonstrates how these fields are linked and utilised in modern, scientific river management. <ul> <li>Emphasis on applications, from collecting and analysing field measurements to using data and tools in stream management. <li>Updated to include new sections on environmental flows, rehabilitation, measuring stream health and stream classification. <li>Critical reviews of the successes and failures of implementation. <li>Revised and updated windows-based AQUAPAK software. </ul> <p> This book is essential reading for 2<sup>nd</sup>/3<sup>rd</sup> year undergraduates and postgraduates of hydrology, stream ecology and fisheries science in Departments of Physical Geography, Biology, Environmental Science, Landscape Ecology, Environmental Engineering and Limnology. It would be valuable reading for professionals working in stream ecology, fisheries science and habitat management, environmental consultants and engineers.
Natural Products, broadly defined as high value chemical entities derived from plants or microbial sources, have been known and exploited for many years. In recent years, as the need for higher potency and predictability of such products has increased, more sophisticated concentration and isolation procedures have been developed. With the passage of time, such procedures have been rationalized in terms of scientific principles but, in general, theory has followed behind practice, leading at any given time to an absence from the literature of methods which are truly state of the art. Downstream Processing of Natural Products: A Practical Handbook is a highly practical manual which addresses this issue, and guides researchers and industrial workers through the many potential pitfalls of natural product isolation. The contributors to this volume, all of whom have wide practical experience in this field, present state--of--the--art techniques and observations. The three main stages of natural product purification are covered, namely product release, capture, and purification, and both proteins and secondary metabolites are covered. There is special mention of the requirements of the regulatory authorities with respect to Good Manufacturing Practice, and practical guidance is given on scale--up procedures and process scale instrumentation. Downstream Processing of Natural Products: A Practical Handbook will provide essential practical guidance to all those involved in natural product isolation. This includes academic and industrial researchers, postgraduate students and technicians working in the biotechnology field.
Stream of consciousness refers to the practice of writing down ideas as they come into your head. The conventions of grammar and appropriateness of language is usually ignored when using this literary technique. For those of you who cringe at the misplaced metaphor, or the comma splice, or the occasionally correctly spelled wrong word so frequently seen in this day of spell-check reliability, don't worry there are a lot more things in here to worry about. Concern yourself with the raw emotions expressed when two individuals are consumed, destroyed, reformed and recreated by love.