You may have to Search all our reviewed books and magazines, click the sign up button below to create a free account.
A history of the representation of African people & people of African descent in Classical & Western art, these new editions update the magisterial project begun by Dominique de Menil.
The need to understand the biological processes that are important for essential aquatic and terrestrial ecosystem function has prompted much research into the field of ecological enzymology. This book presents the two broad areas of application in a compilation of reviews by 21 international experts in their respective fields. The first explores enzymatic activities to assess the processes or mechanisms that operate in a given system, such as the rhizosphere, plant leaves and shoots, soil surfaces, and biofilms. The second considers enzymes or microbial cells as sensors to detect microbial activity and stresses due to pollution, management, or climatic change in both aquatic and terrestrial ecosystems.
Box 9E. 1 Continued FIGURE 2. The C–S–R triangle model (Grime 1979). The strategies at the three corners are C, competiti- winning species; S, stress-tolerating s- cies; R,ruderalspecies. Particular species can engage in any mixture of these three primary strategies, and the m- ture is described by their position within the triangle. comment briefly on some other dimensions that Grime’s (1977) triangle (Fig. 2) (see also Sects. 6. 1 are not yet so well understood. and 6. 3 of Chapter 7 on growth and allocation) is a two-dimensional scheme. A C—S axis (Com- tition-winning species to Stress-tolerating spe- Leaf Economics Spectrum cies) reflects adaptation to favorable vs. unfavorable s...
None
Drug Targeting and Stimuli Sensitive Drug Delivery Systems covers recent advances in the area of stimuli sensitive drug delivery systems, providing an up-to-date overview of the physical, chemical, biological and multistimuli-responsive nanosystems. In addition, the book presents an analysis of clinical status for different types of nanoplatforms. Written by an internationally diverse group of researchers, it is an important reference resource for both biomaterials scientists and those working in the pharmaceutical industry who are looking to help create more effective drug delivery systems. - Shows how the use of nanomaterials can help target a drug to specific tissues and cells - Explores the development of stimuli-responsive drug delivery systems - Includes case studies to showcase how stimuli responsive nanosystems are used in a variety of therapies, including camptothecin delivery, diabetes and cancer therapy
In the course of evolution, a great variety of root systems have learned to overcome the many physical, biochemical and biological problems brought about by soil. This development has made them a fascinating object of scientific study. This volume gives an overview of how roots have adapted to the soil environment and which roles they play in the soil ecosystem. The text describes the form and function of roots, their temporal and spatial distribution, and their turnover rate in various ecosystems. Subsequently, a physiological background is provided for basic functions, such as carbon acquisition, water and solute movement, and for their responses to three major abiotic stresses, i.e. hard soil structure, drought and flooding. The volume concludes with the interactions of roots with other organisms of the complex soil ecosystem, including symbiosis, competition, and the function of roots as a food source.
The importance of soil; Soil origin and development; Physical properties os soil; Soil water; Water conservation; Irrigation and drainage; Life in the soil; Organic matter; Soil fertility; Soil pH and salinity; Plant nutrition; Soil sampling and testing; Fertilizers; Organic amendments; Tillage and cropping systems; Horticultural uses of soil; Soil classification and survey; Soil Conservation; Urban soil; Government agencies and programs; Some basic chemistry; Sedimentation test of soil texture; Soil orders of the United States; Soil horizon symbol suffixes; Land evaluation.
Christopher Dawson concludes that the period of the fourth to the eleventh centuries, commonly known as the Dark Ages, is not a barren prelude to the creative energy of the medieval world. Instead, he argues that it is better described as "ages of dawn" for it is in this rich and confused period that the complex and creative interaction of the Roman empire, the Christian Church, the classical tradition, and barbarous societies provided the foundation for a vital, unified European culture. In an age of fragmentation and the emergence of new nationalist forces, Dawson argued that if "our civilization is to survive, it is essential that it should develop a common European consciousness and sense of historic and organic unity." But he was clear that this unity required sources deeper and more complex than the political and economic movements on which so many had come to depend, and he insisted, prophetically, that Europe would need to recover its Christian roots if it was to survive. In a time of cultural and political ambiguity, The making of Europe is an indispensable work for understanding not only the rich sources but also the contemporary implications of the very idea of Europe.
The fourth edition of Soil Microbiology, Ecology and Biochemistry updates this widely used reference as the study and understanding of soil biota, their function, and the dynamics of soil organic matter has been revolutionized by molecular and instrumental techniques, and information technology. Knowledge of soil microbiology, ecology and biochemistry is central to our understanding of organisms and their processes and interactions with their environment. In a time of great global change and increased emphasis on biodiversity and food security, soil microbiology and ecology has become an increasingly important topic. Revised by a group of world-renowned authors in many institutions and disci...
From the acclaimed author of The Prophet comes a unique and moving collection of poems and parables. The book is short, but what the reader may create and experience as a result of its reading could fill volumes. The author, also an artist, has included five black and white illustrations to accompany his work.