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Rock Slope Engineering Civil Applications Fifth Edition

Pivotal Lines in Shakespeare and Others Finding the Heart of the Play

Cluster Randomised Trials

Vermiculture Technology Earthworms Organic Wastes and Environmental Management

Vermiculture Technology Earthworms Organic Wastes and Environmental Management

Co-edited by international earthworm expert Clive A. Edwards Vermiculture Technology: Earthworms Organic Wastes and Environmental Management is the first international comprehensive and definitive work on how earthworms and microorganisms interact to break down organic wastes on a commercial basis. Many books cover the importance of composting for reducing the amount of organic wastes in landfills. This reference focuses on innovative vermiculture technology that turns organic waste into a value-added environmentally friendly products that can improve soil fertility and productivity on a large scale. Chronicles more than two decades of growth and changes in earthworm composting technologyBased on the work of an outstanding international cast of scientists the book explores the dramatic growth and changes in vermiculture technology since 1988 and assesses advances made in government-funded projects in the United States and United Kingdom. The contributors discuss outdoor and indoor windrows container systems wedge systems and low labor-requirement fully-automated continuous flow vermicomposting reactor systems that can process more than 1000 tons of organic wastes per reactor per annum. They also highlight the science and biology behind the use and efficacy of vermicomposting examine its importance to developing countries and detail the technology of the past present and future. Although the development of a range of vermicomposting technologies has been rapid and the spread of vermicomposting dramatic the scientific literature remains scattered throughout a range of journals newsletters and online resources. As a compilation of information designed specifically to have an extended shelf life this volume chronicles how vermiculture can be brought into full commercial and industrial development and find application in integrated waste management systems. | Vermiculture Technology Earthworms Organic Wastes and Environmental Management

GBP 44.99
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Design and Analysis of Pragmatic Trials

Design and Analysis of Pragmatic Trials

This book begins with an introduction of pragmatic cluster randomized trials (PCTs) and reviews various pragmatic issues that need to be addressed by statisticians at the design stage. It discusses the advantages and disadvantages of each type of PCT and provides sample size formulas sensitivity analyses and examples for sample size calculation. The generalized estimating equation (GEE) method will be employed to derive sample size formulas for various types of outcomes from the exponential family including continuous binary and count variables. Experimental designs that have been frequently employed in PCTs will be discussed including cluster randomized designs matched-pair cluster randomized design stratified cluster randomized design stepped-wedge cluster randomized design longitudinal cluster randomized design and crossover cluster randomized design. It demonstrates that the GEE approach is flexible to accommodate pragmatic issues such as hierarchical correlation structures different missing data patterns randomly varying cluster sizes etc. It has been reported that the GEE approach leads to under-estimated variance with limited numbers of clusters. The remedy for this limitation is investigated for the design of PCTs. This book can assist practitioners in the design of PCTs by providing a description of the advantages and disadvantages of various PCTs and sample size formulas that address various pragmatic issues facilitating the proper implementation of PCTs to improve health care. It can also serve as a textbook for biostatistics students at the graduate level to enhance their knowledge or skill in clinical trial design. Key Features: Discuss the advantages and disadvantages of each type of PCTs and provide sample size formulas sensitivity analyses and examples. Address an unmet need for guidance books on sample size calculations for PCTs; A wide variety of experimental designs adopted by PCTs are covered; The sample size solutions can be readily implemented due to the accommodation of common pragmatic issues encountered in real-world practice; Useful to both academic and industrial biostatisticians involved in clinical trial design; Can be used as a textbook for graduate students majoring in statistics and biostatistics. | Design and Analysis of Pragmatic Trials

GBP 89.99
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