The current book describes the chemical and physical behavior of polymers and biopolymers that form highly associating structures in equilibrium solution. It summons the established results known of polymer complexes in solution taking into account also the recent developments in biotechnology concerning this topic, in technological applications of polymerprotein interactions, in fluorescence and scattering techniques for the study of intra- and interpolymer association and in the study of ionomers in solution. The book covers the whole range from synthesis and fundamental aspects to applications and technology of associated polymers and will thus be the valuable source to all polymer chemists, colloid chemists, biotechnologists, bioengineers and chemical engineers working in this field.

The Atlas of African Agriculture Research & Development is a multifaceted resource that high­lights the ubiquitous nature of smallholder agriculture in Africa; the many factors shaping the location, nature, and performance of agricultural enterprises; and the strong interde­pendencies among farming, natural resource stocks and flows, rural infrastructure, and the well-being of the poor.

The Atlas of African Agriculture Research & Development is a multifaceted resource that high­lights the ubiquitous nature of smallholder agriculture in Africa; the many factors shaping the location, nature, and performance of agricultural enterprises; and the strong interde­pendencies among farming, natural resource stocks and flows, rural infrastructure, and the well-being of the poor.

Weeds are variously defined as plants growing where they are not wanted, plants that interfere with human activity. Weeds affect everyone in the world by reducing crop yield and quality, delaying or interfering with harvesting, interfering with animal feeding, reducing animal health, preventing water flow, as plant parasites, etc. It is estimated that those problems cause $ billions worth of crop losses annually and the global cost of controlling weeds also runs into many $ billions every year. Atlas of Weed Mapping presents an introductory overview on the occurrence of the most common weeds of the world. The book notably includes: Description of cropping practices and explanations for the global distribution of weeds Invasive plant mapping Aquatics and wetland plants with histological plant details Theoretical and practical aspects of weed mapping Aspects on the documentation of herbicide resistance Biodiversity, rare weeds and the dominance of the most common weeds Fully illustrated with more than 800 coloured figures and a number of tables, this new characterisation of anthropogenic vegetation will be interesting for readers of a great number of disciplines such as agriculture, botany, ecology, geobotany and plant community research. More than a hundred experts have contributed data to this unique compilation.