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United States Institute of Peace
TheUnited States Insitute of Peace was created by the US congress as a federally funded presscreatingworks toprevent and resolve global conflict by providing education and resources to work towards peace.
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January 2021Practical R for Biologists
An Introduction
by Donald Quicke, Buntika A Butcher, Rachel Kruft Welton
R is a freely available, open-source statistical programming environment which provides powerful statistical analysis tools and graphics outputs. R is now used by a very wide range of people; biologists (the primary audience of this book), but also all other scientists and engineers, economists, market researchers and medical professionals. R users with expertise are constantly adding new associated packages, and the range already available is immense.This text works through a set of studies that collectively represent almost all the R operations that biology students need in order to analyse their own data. The material is designed to serve students from first year undergraduates through to those beginning post graduate levels. Chapters are organized around topics such as graphing, classical statistical tests, statistical modelling, mapping, and text parsing. Examples are based on real scientific studies, and each one covers the use of more R functions than those simply necessary to get a p-value or plot.The book walks the reader through the data analysis process, starting with very simple plots, and continuing through more complex analyses and programming. It shows how to deal with issues such as error messages that can be confronting for beginners, in order to set students up for a successful scientific career using R.Collectively the authors have a vast amount of teaching experience which they apply here to make the passage into R programming as gentle and easy as possible, whilst guiding the reader to tackle quite complicated programming. Table of contents 1: How to Use this Book 2: Installing and Running R 3: Very Basic R Syntax 4: First Simple Programs and Graphics 5: The Dataframe Concept 6: Plotting Biological Data in Various Ways 7: The Grammar of Graphics Family of Packages 8: Sets and Venn diagrams 9: Statistics: Choosing the Right Test 10: Commonly Used Measures and Statistical Tests 11: Regression and Correlation Analyses 12: Count Data as Response Variable 13: Analysis of Variance (ANOVA) 14: Analysis of Covariance (ANCOVA) 15: More Generalised Linear Modelling 16: Monte Carlo Tests and Randomisation 17: Principal Components Analysis 18: Species Abundance, Accumulation and Diversity Data 19: Survivorship 20: Dates and Julian Dates 21: Mapping and Parsing Text Input for Data 22: More on Manipulating Text 23: Phylogenies and Trees 24: Working with DNA Sequences and other character data 25: Spacing in Two Dimensions 26: Population Modelling Including Spatially Explicit Models 27: More on “apply” Family of Functions – Avoid Loops to get More Speed 28: Food webs and simple graphics 29: Adding Photographs 30: Standard Distributions in R 31: Reading and Writing Data to and from Files
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March 2021International Trade in Forest Products
Lumber Trade Disputes, Models and Examples
by G Cornelis van Kooten, Linda Voss
Because of the long-standing Canada-U.S. lumber trade dispute and the current pressure on the world's forests as a renewable energy source, much attention has been directed toward the modelling of international trade in wood products. Two types of trade models are described in this book: one is rooted in economic theory and mathematical programming, and the other consists of two econometric/statistical models--a gravity model rooted in theory and an approach known as GVAR that relies on time series analyses. The purpose of the book is to provide the background theory behind models and facilitate readers in easily constructing their own models to analyse policy questions that they wish to address, whether in forestry or some other sector. Examples in the book are meant to illustrate how models can be used to say something about a variety of issues, including identification of the gains and losses to various players in the North American softwood lumber business, and the potential for redirecting sales of lumber to countries outside the United States. The discussion is expanded to include other products besides lumber, and used to examine, for example, the effects of log export restrictions by one nation on all other forestry jurisdictions, the impacts of climate policies as they relate to the global forest sector, and the impact of oil prices on forest product markets throughout the world. This book will appeal to practising economists and researchers who wish to examine various policies that affect international trade, whether their interest is local or international in scope. Because the book provides the theoretical bases underlying various models, students and practitioners will find this a valuable reference book or supplementary textbook.
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Trusted Partner
Forestry & silviculture: practice & techniquesSeptember 2003Modelling Forest Systems
by Edited by Ana Amaro, David Reed, Paula Soares
There are many theoretical approaches to modelling forest systems, but not all of them have valid practical applications. This book reviews current thinking on various models and explores a variety of areas and approaches. The papers in this book have been selected and developed from those presented at a workshop held in Portugal in June 2002. The topics covered include: forest reality and modelling strategies; mathematical approaches and reasoning; estimation processes models; validation and decision under uncertainty and model archives and metadata.The book will be of significant interest to those in areas of forestry, applied ecology, and statistics and economics.
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Teaching, Language & ReferenceAugust 2019Introductory Probability and Statistics
Applications for Forestry and the Natural Sciences (Revised Edition)
by Robert Kozak, Antal Kozak, Christina Staudhammer, Susan Watts
This special revised edition of this unique textbook is specifically designed for statistics and probability courses taught to students of forestry and related disciplines. It introduces probability, statistical techniques, data analysis, hypothesis testing, experimental design, sampling methods, nonparametric tests and statistical quality control, using examples drawn from a forestry, wood science and conservation context. The book now includes several new practical exercises for students to practice data analysis and experimental design themselves. It has been updated throughout, and its scope has been broadened to reflect the evolving and dynamic nature of forestry, bringing in examples from conservation science, recreation and urban forestry.
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Science & MathematicsOctober 2017Data Analysis in Vegetation Ecology
by Otto Wildi
The 3rd edition of this popular textbook introduces the reader to the investigation of vegetation systems with an emphasis on data analysis. The book succinctly illustrates the various paths leading to high quality data suitable for pattern recognition, pattern testing, static and dynamic modelling and model testing including spatial and temporal aspects of ecosystems. Step-by-step introductions using small examples lead to more demanding approaches illustrated by real world examples aimed at explaining interpretations. All data sets and examples described in the book are available online and are written using the freely available statistical package R. This book will be of particular value to beginning graduate students and postdoctoral researchers of vegetation ecology, ecological data analysis, and ecological modelling, and experienced researchers needing a guide to new methods. A completely revised and updated edition of this popular introduction to data analysis in vegetation ecology. Includes practical step-by-step examples using the freely available statistical package R. Complex concepts and operations are explained using clear illustrations and case studies relating to real world phenomena. Emphasizes method selection rather than just giving a set of recipes.
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Zoology & animal sciencesDecember 2014Nutritional Modelling for Pigs and Poultry
by Hilda C P Bendezu, Melina A Bonato, Edney Pereira da Silva, Daniella C.Z. Donato, Juliano C P Dorigam, Jean-Yves Dourmad, Neil S Ferguson, Antonio Sergio Ferraudo, Colin Fisher, Frank Liebert, Edgar Oviedo-Rondón, Candido Pomar, Virginie Rivera-Torres, Normand St-Pierre, Jaap van Milgen, Nilva K Sakomura. Edited by Nilva K Sakmoura, Rob Gous, Ilias Kyriazakis, L Hauschild.
Modelling is a useful tool for decision making in complex agro-industrial scenarios. Containing a selection of the papers presented at the International Symposium of Modelling in Pig and Poultry Production 2013, this book brings together the best and most recent academic work on modelling in the pig and poultry industry, with a particular emphasis on nutrition. It reviews basic modelling concepts, descriptions and applications of production models and new methods and approaches in modelling.
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Fertilizers & manuresDecember 1999Modelling Soil-Biosphere Interactions
by Christoph Müller
Soils interact with the biological environment in a number of ways. Our understanding of these interactions can often be enhanced by computer modelling. The primary function of this book is to introduce basic modelling skills and to show how even complex problems in the relationship between soil and the biosphere can be solved using modelling packages. The author presents numerous examples using ModelMaker, an easily learnt software package. Only basic mathematical skills are expected of the reader.A demo of ModelMaker is available on CD from Cherwell Scientific
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Animal husbandryJuly 2006Mechanistic Modelling in Pig and Poultry Production
by Edited by Colin Fisher, Rob Gous, Trevor R Morris
This book is based on papers presented at a symposium held in 2005 in South Africa. It brings together the most recent academic writings on modelling concepts, problems and applications of models and looks at the development, usefulness and limitations of models in pigs and poultry. Contents includes; description of growth and feed intake, modelling social systems and disease effects, nutrient flow models, energy transactions and energy feed systems, optimisation of broiler nutrition and modelling egg production in layering hens.
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Biology, life sciencesMarch 2015Pest Risk Modelling and Mapping for Invasive Alien Species
by Manuel Colunga-Garcia, Hazel Parry, Catherine Jarnevich, Roger Magarey, Darren Kriticos, Susan Worner, Christelle Robinet, Patrick Tobin, David Cook, Craig Allen, Richard Baker, Marla Downing, Rieks van Klinken, Frank Koch, Denys Yemshanov, Steven Venette. Edited by Robert C Venette.
Over the past century, the number of species that have been transported to areas outside their native range has increased steadily. New pests and pathogens place biological pressure on valuable resident species, but strict bans may conflict with trading and travel needs. An overview of how the conflict can be managed using pest risk mapping and modelling, this book uses worked examples to explain modelling and help development of tool kits for assessment.
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Agriculture & farmingJune 2016Farm-level Modelling
Techniques, Applications and Policy
by Edited by S Shrestha, B V Ahmadi, A Barnes
Farm level models have been widely used in agricultural economic studies. This book provides an in-depth description of different methodologies and techniques currently used in farm level modelling. Whilst chapters will give an overview of the theoretical grounding behind the models, it will take an applied stance; more specifically using cases from the application of modelling to policy reforms and the subsequent impacts on rural communities and food supply. This book also provide descriptions on using farm level models in much wider field such as aggregation and linking with sectoral models.
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Veterinary medicine: large animals (domestic / farm)April 2008Mathematical Modelling in Animal Nutrition
by Edited by James (Jim) France, Ermias Kebreab, A T G Elzebroek, K Wind.
Mathematical modelling is increasingly applicable to the practical sciences. Here, mathematical approaches are applied to the study of mechanisms of digestion and metabolism in primary animal species. Farmed animals - ruminants, pigs, poultry and fish are comprehensively covered, as well as sections on companion animals. Common themes between species, such as energy and amino acid metabolism, are explored with a worldwide approach. Leading researchers from around the world have contributed to France and Kebreab's volume to provide an integrated approach to mathematical modelling in animal nutrition.
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Limnology (freshwater)July 2002Crop-Soil Simulation Models
Applications in Developing Countries
by Edited by Robin B Matthews, William Stephens
The use of crop-soil modelling has so far been mainly confined to the research community. Practical applications have occurred in the areas of decision tools for irrigation studies and pest management. However, there is potential to increase its applied use.This book reviews progress in crop-soil simulation modelling and assesses its application to agriculture in developing countries. It is based on work sponsored by the Natural Resources Systems Programme of the UK Department for International Development.
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Science & MathematicsApril 2022Nematodes as Model Organisms
by Itamar Glazer, David I Shapiro-llan, Paul W. Sternberg
Nematodes, which are small multi cellular organisms have been used as biological models since the 1960's. The nematode worm Caenorhabditis elegans is a free-living nematode, about 1mm in length, that lives in temperate soil environments. It is made up of about 1000 cells, and has a short life cycle of only 2 weeks. It was the first multicellular organism to have its whole genome sequenced. The book includes chapters that summarize the importance of nematodes as model organisms in the fields of genetics, developmental biology, neurobiology, pharmacology, nutrition, ecology and parasitology. Of interest to a broad audience across a wide spectrum of disciplines, the book is useful for biologists working on comparative studies to investigate biological processes across organisms; medical scientists and pharmacologist for exploration of drugs and medicine (including the use of genome editing to eliminate diseases); ecologists considering nematodes as indicators for environment changes; and parasitologists for host-parasite interactions. Many other researchers can use this book as a benchmark for the broad implications of nematology research on other aspects of science.
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June 2021Applied Plant Science Experimental Design and Statistical Analysis Using SAS® OnDemand for Academics
by Edward Durner
The correct design, analysis and interpretation of plant science experiments is imperative for continued improvements in agricultural production worldwide. The enormous number of design and analysis options available for correctly implementing, analysing and interpreting research can be overwhelming. SAS® is the most widely used statistical software in the world and SAS® OnDemand for Academics is now freely available for academic institutions.This is a user-friendly guide to statistics using SAS® OnDemand for Academics, ideal for facilitating the design and analysis of plant science experiments. It presents the most frequently used statistical methods in an easy-to-follow and non-intimidating fashion, and teaches the appropriate use of SAS® within the context of plant science research. This book:- Covers experimental designs and data analysis protocols- Is presented as a how-to guide with many examples- Includes freely downloadable data sets- Examines key topics such as merging data frames, multivariate analysis and linear regressionAuthored by an experienced teacher of applied plant science statistics, this book assumes no prior background in statistics and guides users through the appropriate methodologies in research. It is an invaluable tool for advanced undergraduate and graduate students, in addition to researchers, extension consultants, faculty and technicians.
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The ArtsJanuary 1905The Elements of Drawing
by John Ruskin
Can drawing — sound, honest representation of the world as the eye sees it, not tricks with the pencil or a few "effects" — be learned from a book? One of the most gifted draftsmen, who is also one of the greatest art critics and theorists of all time, answers that question with a decided "Yes." He is John Ruskin, the author of this book, a classic in art education as well as a highly effective text for the student and amateur today. The work is in three parts, cast in the form of letters to a student, successively covering "First Practice," "Sketching from Nature," and "Colour and Composition." Starting with the bare fundamentals (what kind of drawing pen to buy; shading a square evenly), and using the extremely practical method of exercises which the student performs from the very first, Ruskin instructs, advises, guides, counsels, and anticipates problems with sensitivity. The exercises become more difficult, developing greater and greater skills until Ruskin feels his reader is ready for watercolors and finally composition, which he treats in detail as to the laws of principality, repetition, continuity, curvature, radiation, contrast, interchange, consistency, and harmony. All along the way, Ruskin explains, in plain, clear language, the artistic and craftsmanlike reasons behind his practical advice — underlying which, of course, is Ruskin's brilliant philosophy of honest, naturally observed art which has so much affected our aesthetic. Three full-page plates and 48 woodcuts and diagrams (the latter from drawings by the author) show the student what the text describes. An appendix devotes many pages to the art works which may be studied with profit.
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Science & MathematicsMay 2022Transgenic Insects
Techniques and Applications
by Mark Quentin Benedict, Maxwell Scott
Technology for modifying the genotypes and phenotypes of insects and other arthropods has steadily progressed by development of more precise and powerful methods, most prominently transgenic modification. There is now almost unlimited ability to modify phenotypes to benefit human health and agriculture. Precise DNA modifications and gene drive particularly have the power to make wild-type populations less harmful in ways that could never be performed with previous transgenic approaches. This transition from primarily laboratory science to greater prominence for field applications has also necessitated a greater development of modelling, ethical considerations and regulatory oversight. The 2nd edition of Transgenic Insects contains chapters contributed by experts in the field that cover the technology and applications that are now possible. These include an increased emphasis on acceptance issues that will be necessary for application of many technologies.
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The ArtsMarch 1905Concerning the Spiritual in Art
by Wassily Kandinsky
A pioneering work in the movement to free art from its traditional bonds to material reality, this book is one of the most important documents in the history of modern art. Written by the famous nonobjective painter Wassily Kandinsky (1866–1944), it explains Kandinsky's own theory of painting and crystallizes the ideas that were influencing many other modern artists of the period. Along with his own groundbreaking paintings, this book had a tremendous impact on the development of modern art. Kandinsky's ideas are presented in two parts. The first part, called "About General Aesthetic," issues a call for a spiritual revolution in painting that will let artists express their own inner lives in abstract, non-material terms. Just as musicians do not depend upon the material world for their music, so artists should not have to depend upon the material world for their art. In the second part, "About Painting," Kandinsky discusses the psychology of colors, the language of form and color, and the responsibilities of the artist. An Introduction by the translator, Michael T. H. Sadler, offers additional explanation of Kandinsky's art and theories, while a new Preface by Richard Stratton discusses Kandinsky's career as a whole and the impact of the book. Making the book even more valuable are nine woodcuts by Kandinsky himself that appear at the chapter headings. This English translation of Über das Geistige in der Kunst was a significant contribution to the understanding of nonobjectivism in art. It continues to be a stimulating and necessary reading experience for every artist, art student, and art patron concerned with the direction of 20th-century painting.
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Animal husbandrySeptember 2000Modelling Nutrient Utilization in Farm Animals
by David E Beever. Edited by John P McNamara, James (Jim) France
This book describes current research in modelling nutrient use in farm animals, from cellular to ecosystem level. The chapters are developed from papers presented at a satellite meeting of the 9th International Symposium on Ruminant Physiology, held in South Africa in October 1999.Excellent papers from a top list of contributorsEditors of great reputationCovers the current topics of interest
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Family & home stories (Children's/YA)February 1905Little Women
by Louise May Alcott
Little Women "has been read as a romance or as a quest, or both. It has been read as a family drama that validates virtue over wealth", but also "as a means of escaping that life by women who knew its gender constraints only too well".[6]:34 According to Sarah Elbert, Alcott created a new form of literature, one that took elements from Romantic children's fiction and combined it with others from sentimental novels, resulting in a totally new format. Elbert argued that within Little Women can be found the first vision of the "All-American girl" and that her multiple aspects are embodied in the differing March sisters.
