Daniel Wallach, David Makowski, James W. Jones + 1 more
November 25, 2013
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This second edition of Working with Dynamic Crop Models is meant for self-learning by researchers or for use in graduate level courses devoted to methods for working with dynamic models in crop, agricultural, and related sciences. Each chapter focuses on a particular topic and includes an introduction, a detailed explanation of the available methods, applications of the methods to one or two simple models that are followed throughout the book, real-life examples of the methods from literature, and finally a section detailing implementation of the methods using the R programming language. The consistent use of R makes this book immediately and directly applicable to scientists seeking to develop models quickly and effectively, and the selected examples ensure broad appeal to scientists in various disciplines.
Daniel Wallach, David Makowski, James W. Jones + 1 more
September 25, 2018
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Working with Dynamic Crop Models: Methods, Tools and Examples for Agriculture and Environment, 3e, is a complete guide to working with dynamic system models, with emphasis on models in agronomy and environmental science. The introductory section presents the foundational information for the book including the basics of system models, simulation, the R programming language, and the statistical notions necessary for working with system models. The most important methods of working with dynamic system models, namely uncertainty and sensitivity analysis, model calibration (frequentist and Bayesian), model evaluation, and data assimilation are all treated in detail, in individual chapters. New chapters cover the use of multi-model ensembles, the creation of metamodels that emulate the more complex dynamic system models, the combination of genetic and environmental information in gene-based crop models, and the use of dynamic system models to aid in sampling. The book emphasizes both understanding and practical implementation of the methods that are covered. Each chapter simply and clearly explains the underlying principles and assumptions of each method that is presented, with numerous examples and illustrations. R code for applying the methods is given throughout. This code is designed so that it can be adapted relatively easily to new problems.
Daniel Wallach, David Makowski, James W. Jones + 1 more
Daniel Wallach, David Makowski and James W. Jones
May 9, 2006
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Mathematical models are being used more and more widely to study complex dynamic systems (global weather, ecological systems, hydrological systems, nuclear reactors etc. including the specific subject of this book, crop-soil systems). The models are important aids in understanding, predicting and managing these systems. Such models are complex and imperfect. One fundamental research direction is to seek a better understanding of how these systems function, and to propose mathematical expressions embodying that understanding. However, this is not sufficient. It is also essential to have tools (often mathematical and statistical methods) to aid in developing, improving and using the models built from those equations. The book is specifically concerned with the application of methods to crop models, but much of the material is also applicable to dynamic system models in other fields. The goal of this book is to fill that gap.
World Resources 2000-2001, People and Ecosystems: The Fraying Web of Life focuses on the critical link between ecosystems and people and provides an overview of current global environmental and economic trends using hundreds of indicators in more than 150 countries.Until now there has not been a comprehensive, formalised process to assess human damage to our ecosystems, to establish a baseline for future actions, or to disseminate information that would aid the formulation of better policies world-wide. This book is the first reliable, comprehensive base of evidence for taking stock and taking care of the world's diverse ecosystems.• deals with the critical issues that focus on the link between ecosystems and people• highlights the goods and services that ecosystems provide and illustrates the benefits of a better understanding and better management of the planet's natural wealth• reports on pilot studies by leading scientists and international institutions assessing the state of the world's ecosystems - forests, croplands, grasslands, freshwater systems and coastal areas• increases the understanding of human dependence on nature• raises awareness of environmental threats• provides examples of wise stewardship from all corners of the globe• focuses on four main issues: population and human well-being, food and water security, consumption, energy and wastes, trace emissions since the Kyoto protocol• gives data tables for more than 150 countriesIt demonstrates the power of information and new digital technologies to transform the way we interact with our environment and is particularly important for environmentalists, scientists, professionals, journalists, policy-makers and students.This special Millennium Edition of the World Resources Institute's biennial report published by Elsevier Science in September 2000 in partnership with the World Resources Institute, the UN Environment Program, the UN Development Programme and the World Bank.NEW FROM APRIL 2001 - http://www.enviromod.subnet.dk/Ecological and Environmental Modeling - An Interactive Internet Course
Wound Healing, Tissue Repair and Regeneration in Diabetes explores a wide range of topics related to wound healing, tissue repair and regeneration, putting a special focus on diabetes and obesity. The book addresses the molecular and cellular pathways involved in the process of wound repair and regeneration. Other sections explore a wide spectrum of nutritional supplements and novel therapeutic approaches, provide a comprehensive overview, present various types of clinical aspects related to diabetic wounds, including infection, neuropathy, and vasculopathy, provide an exhaustive review of various foods, minerals, supplements and phytochemicals that have been proven beneficial, and assess future directions. This book is sure to be a welcome resource for nutritionists, practitioners, surgeons, nurses, wound researchers and other health professionals.
Yeasts play a crucial role in the sensory quality of a wide range of foods. They can also be a major cause of food spoilage. Maximising their benefits whilst minimising their detrimental effects requires a thorough understanding of their complex characteristics and how these can best be manipulated by food processors.Yeasts in food begins by describing the enormous range of yeasts together with methods for detection, identification and analysis. It then discusses spoilage yeasts, methods of control and stress responses to food preservation techniques. Against this background, the bulk of the book looks at the role of yeasts in particular types of food. There are chapters on dairy products, meat, fruit, bread, soft drinks, alcoholic beverages, soy products, chocolate and coffee. Each chapter describes the diversity of yeasts associated with each type of food, their beneficial and detrimental effects on food quality, methods of analysis and quality control.With its distinguished editors and international team of over 30 contributors, Yeasts in food is a standard reference for the food industry in maximising the contribution of yeasts to food quality.
This book gives a detailed overview of production processes and yield formation in field crops and permanent grasslands. Yield formation is discussed by the authors as a dynamic process, involving many factors at each stage. Knowledge of the optimum levels of individual yield components makes it possible to control this dynamic process. It is intended that this approach will help to point out gaps in the understanding of the production processes and indicate the direction for further research on this subject.The authors report on various aspects which are involved in yield formation, such as uptake of nutrients, root growth, water use, photosynthesis, transport, distribution and accumulation of photosynthates, etc. A separate chapter discusses the production process as seen from a genetic standpoint. It includes an analysis of phenotype and genotype with respect to production potential, also the heredity, variability of yield potential and new cultivation methods are mentioned. The main part of the book deals with the theory and practice of yield formation in cereals, maize, legumes, sugarbeet, potatoes, clovers and perennial grass stands.
Yogurt in Health and Disease Prevention examines the mechanisms by which yogurt, an important source of micro- and macronutrients, impacts human nutrition, overall health, and disease. Topics covered include yogurt consumption’s impact on overall diet quality, allergic disorders, gastrointestinal tract health, bone health, metabolic syndrome, diabetes, obesity, weight control, metabolism, age-related disorders, and cardiovascular health. Modifications to yogurt are also covered in scientific detail, including altering the protein to carbohydrate ratios, adding n-3 fatty acids, phytochemical enhancements, adding whole grains, and supplementing with various micronutrients. Prebiotic, probiotic, and synbiotic yogurt component are also covered to give the reader a comprehensive understanding of the various impacts yogurt and related products can have on human health.
Zinc in Plants: Current Knowledge and Recent Advances addresses zinc hunger, the transport of zinc in the soil-plant interphase, zinc and abiotic stress in plants, and zinc and plant disease. Written by experts in the field, this title is an essential resource to all scientists and students interested in plant physiology, biochemistry and agriculture. During their life, plants encounter various challenges, including their normal development under changing environmental conditions. Zinc (Zn) is an essential component of thousands of proteins in plants, although it is toxic in excess, and is essential for many processes throughout the plant lifecycle.
Mechanistic Studies of DNA Replication and Genetic Recombination emerged from a symposium on DNA replication and genetic recombination held from March 16-21, 1980 in Keystone, Colorado. The event featured 30 plenary session talks, 13 workshop discussion groups, and the 210 poster sessions. The studies described in this book are paving the way for the elucidation of other basic genetic mechanisms, including ""new"" areas in molecular genetics such as those of eukaryotic gene expression and the transposition of mobile genetic elements. This book is divided into 10 parts: summaries of workshop discussion groups (Part I); studies on eukaryotic model systems for DNA replication (Part II); studies on bacterial replication origins (Part III); studies on replication origins of bacterial phages and plasmids (Part IV); studies on eukaryotic replication origins (Part V); studies on prokaryotic replication enzymology (Part VI); studies on eukaryotic replication enzymology (Part VII); studies on the fidelity of DNA replication (Part VIII); studies on DNA topoisomerases (Part IX); and studies of genetic recombination mechanisms (Part X).