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Author: R. Hunt Publisher: Springer Science & Business Media ISBN: 940109117X Category : Science Languages : en Pages : 119
Book Description
This handbook is intended as an introductory guide to students at all levels on the principles and practice of plant growth analysis. Many have found this quantitative approach to be useful in the description and interpretation of the performance of whole plant systems grown under natural, semi-natural or controlled conditions. Most of the methods described require only simple experimental data and facilities. For the classical approach, GCSE biology and mathematics (or their equivalents) are the only theoretical backgrounds required. For the functional approach, a little calculus and statistical theory is needed. All of the topics regarding the quantitative basis of productivity recently introduced to the Biology A-level syllabus by the Joint Matriculation Board are covered. The booklet replaces my elementary Plant Growth Analysis (1978, London: Edward Arnold) which is now out of print. The presentation is very basic indeed; the opening pages give only essential outlines of the main issues. They are followed by brief, standardized accounts of each growth-analytical concept taken in turn. The illustrations deal more with the properties of well-grown material than with the effects of specific environmental changes, even though that is where much of the subject's interest lies. However, detailed references to the relevant parts of more com prehensive works appear throughout, and a later section on 'Inter relations' adds perspective. Some 'Questions and answers' may also help to show what topics will arise if the subject is pursued further.
Author: R. Hunt Publisher: Springer Science & Business Media ISBN: 940109117X Category : Science Languages : en Pages : 119
Book Description
This handbook is intended as an introductory guide to students at all levels on the principles and practice of plant growth analysis. Many have found this quantitative approach to be useful in the description and interpretation of the performance of whole plant systems grown under natural, semi-natural or controlled conditions. Most of the methods described require only simple experimental data and facilities. For the classical approach, GCSE biology and mathematics (or their equivalents) are the only theoretical backgrounds required. For the functional approach, a little calculus and statistical theory is needed. All of the topics regarding the quantitative basis of productivity recently introduced to the Biology A-level syllabus by the Joint Matriculation Board are covered. The booklet replaces my elementary Plant Growth Analysis (1978, London: Edward Arnold) which is now out of print. The presentation is very basic indeed; the opening pages give only essential outlines of the main issues. They are followed by brief, standardized accounts of each growth-analytical concept taken in turn. The illustrations deal more with the properties of well-grown material than with the effects of specific environmental changes, even though that is where much of the subject's interest lies. However, detailed references to the relevant parts of more com prehensive works appear throughout, and a later section on 'Inter relations' adds perspective. Some 'Questions and answers' may also help to show what topics will arise if the subject is pursued further.
Author: Kevin J. Grimm Publisher: Guilford Publications ISBN: 1462526063 Category : Social Science Languages : en Pages : 558
Book Description
Growth models are among the core methods for analyzing how and when people change. Discussing both structural equation and multilevel modeling approaches, this book leads readers step by step through applying each model to longitudinal data to answer particular research questions. It demonstrates cutting-edge ways to describe linear and nonlinear change patterns, examine within-person and between-person differences in change, study change in latent variables, identify leading and lagging indicators of change, evaluate co-occurring patterns of change across multiple variables, and more. User-friendly features include real data examples, code (for Mplus or NLMIXED in SAS, and OpenMx or nlme in R), discussion of the output, and interpretation of each model's results. User-Friendly Features *Real, worked-through longitudinal data examples serving as illustrations in each chapter. *Script boxes that provide code for fitting the models to example data and facilitate application to the reader's own data. *"Important Considerations" sections offering caveats, warnings, and recommendations for the use of specific models. *Companion website supplying datasets and syntax for the book's examples, along with additional code in SAS/R for linear mixed-effects modeling.
Author: Arne Pommerening Publisher: Springer Nature ISBN: 3030245284 Category : Technology & Engineering Languages : en Pages : 417
Book Description
Model-driven individual-based forest ecology and individual-based methods in forest management are of increasing importance in many parts of the world. For the first time this book integrates three main fields of forest ecology and management, i.e. tree/plant interactions, biometry of plant growth and human behaviour in forests. Individual-based forest ecology and management is an interdisciplinary research field with a focus on how the individual behaviour of plants contributes to the formation of spatial patterns that evolve through time. Key to this research is a strict bottom-up approach where the shaping and characteristics of plant communities are mostly the result of interactions between plants and between plants and humans. This book unites important methods of individual-based forest ecology and management from point process statistics, individual-based modelling, plant growth science and behavioural statistics. For ease of access, better understanding and transparency the methods are accompanied by R code and worked examples.
Author: Yin Bun Cheung Publisher: CRC Press ISBN: 143987154X Category : Mathematics Languages : en Pages : 380
Book Description
Statistical Analysis of Human Growth and Development is an accessible and practical guide to a wide range of basic and advanced statistical methods that are useful for studying human growth and development. Designed for nonstatisticians and statisticians new to the analysis of growth and development data, the book collects methods scattered throughout the literature and explains how to use them to solve common research problems. It also discusses how well a method addresses a specific scientific question and how to interpret and present the analytic results. Stata is used to implement the analyses, with Stata codes and macros for generating example data sets, a detrended Q-Q plot, and weighted maximum likelihood estimation of binary items available on the book’s CRC Press web page. After reviewing research designs and basic statistical tools, the author discusses the use of existing tools to transform raw data into analyzable variables and back-transform them to raw data. He covers regression analysis of quantitative, binary, and censored data as well as the analysis of repeated measurements and clustered data. He also describes the development of new growth references and developmental indices, the generation of key variables based on longitudinal data, and the processes to verify the validity and reliability of measurement tools. Looking at the larger picture of research practice, the book concludes with coverage of missing values, multiplicity problems, and multivariable regression. Along with two simulated data sets, numerous examples from real experimental and observational studies illustrate the concepts and methods. Although the book focuses on examples of anthropometric measurements and changes in cognitive, social-emotional, locomotor, and other abilities, the ideas are applicable to many other physical and psychosocial phenomena, such as lung function and depressive symptoms.
Author: Sean Ellis Publisher: Crown Currency ISBN: 0451497228 Category : Business & Economics Languages : en Pages : 322
Book Description
The definitive playbook by the pioneers of Growth Hacking, one of the hottest business methodologies in Silicon Valley and beyond. It seems hard to believe today, but there was a time when Airbnb was the best-kept secret of travel hackers and couch surfers, Pinterest was a niche web site frequented only by bakers and crafters, LinkedIn was an exclusive network for C-suite executives and top-level recruiters, Facebook was MySpace’s sorry step-brother, and Uber was a scrappy upstart that didn’t stand a chance against the Goliath that was New York City Yellow Cabs. So how did these companies grow from these humble beginnings into the powerhouses they are today? Contrary to popular belief, they didn’t explode to massive worldwide popularity simply by building a great product then crossing their fingers and hoping it would catch on. There was a studied, carefully implemented methodology behind these companies’ extraordinary rise. That methodology is called Growth Hacking, and it’s practitioners include not just today’s hottest start-ups, but also companies like IBM, Walmart, and Microsoft as well as the millions of entrepreneurs, marketers, managers and executives who make up the community of Growth Hackers. Think of the Growth Hacking methodology as doing for market-share growth what Lean Start-Up did for product development, and Scrum did for productivity. It involves cross-functional teams and rapid-tempo testing and iteration that focuses customers: attaining them, retaining them, engaging them, and motivating them to come back and buy more. An accessible and practical toolkit that teams and companies in all industries can use to increase their customer base and market share, this book walks readers through the process of creating and executing their own custom-made growth hacking strategy. It is a must read for any marketer, entrepreneur, innovator or manger looking to replace wasteful big bets and "spaghetti-on-the-wall" approaches with more consistent, replicable, cost-effective, and data-driven results.
Author: Donella H. Meadows Publisher: Universe Pub ISBN: 9780876632222 Category : Economic development. Languages : en Pages : 0
Book Description
Examines the factors which limit human economic and population growth and outlines the steps necessary for achieving a balance between population and production. Bibliogs
Author: C.A. van Bochove Publisher: Springer Science & Business Media ISBN: 9400976844 Category : Business & Economics Languages : en Pages : 345
Book Description
The research for this project was carried out while the author was at the staff of the Economics Faculty of Erasmus University Rotterdam. The core results were recorded in discussion papers 7821/G, 7901/G, 7910/G and 8002/G of the faculty's Institute for Economic Research. Working on the project I incurred considerable debts to some professors and fellow staff members of the faculty. Professor P. J. Verdoorn initiated this study by suggesting its subject and by encouraging me to turn my initially hesitantly held view of imports as 'indispensable' inputs into the cornerstone of the analysis; he also read the final manuscript. Professor H. C. Bos' enthusiastic encouragement greatly stimulated me in the arduous phase of the writing of the manuscript; his advise on style and emphasis considerably improved the presentation while his careful reading of the various versions of the manuscript eliminated many non sequiturs and some errors. I am deeply in debt to A. S. W. de Vries who scrutinized not only the manuscript but also the preliminary discussion papers; while sharing an office room with him for six years I had the benefit of many stimulating discussions and he equanimously put up with my moods when I was stuck at some point. I am also in debt to D. P. Broer for checking and improving the optimal control theorem in chapter 7; to Professor R. Harkema for inducing me to write sections 5. 1 and 5.
Author: Hadi Dowlatabadi Publisher: Routledge ISBN: 1317338154 Category : Nature Languages : en Pages : 104
Book Description
Environmental constraints and market uncertainties create new challenges for electricity generation. In this title, originally published in 1991, the authors present a simulation model with a capability for highly detailed activity to identify cost-minimising investment options under different assumptions about demand, costs, regulation, and other economic and environmental factors. Applying the model to two U.S. regions having sharply different electricity demand and supply characteristics, they identify the importance of advanced technologies and augmented electricity trade among regions. This title is ideal for students interested in environmental studies.
Author: C.J. Burrows Publisher: Springer Science & Business Media ISBN: 9401130582 Category : Science Languages : en Pages : 566
Book Description
This book is about ideas on the nature and causes of temporal change in the species composition of vegetation. In particular it examines the diverse processes of inter action of plants with their environment, and with one another, through which the species composition of vegetation becomes established. The first chapter considers the general nature of vegetation and the ways in which vegetation change is perceived by ecologists. Chapters 2 and 3 provide essential background about the relationships between plants and their abiotic and biotic environment. Anyone who is familiar with the fundamentals of plant ecology may prefer to pass over Chapters 2 and 3 which, of necessity, cover their subject matter very briefly. Sequences of development of vegetation on new volcanic rocks, sand dunes and glacial deposits, respectively, are outlined in Chapters 4, 5 and 6. Chapter 7 is about the patterns of vegetation change which occur in severe habitats around the world, and Chapter 8 discusses wetlands. Chapter 9 discusses the diverse responses of temperate forests to a variety of disturbing influences, and Chapter 10 deals with change in the species-rich forests of the Tropics. Chapter 11 treats, in detail, the empirical and inferential data on the biological processes occurring during vegetation change sequences. Chapter 12 considers the plant community phenomena which are implicated in the development of theory about vegetation change. The final chapter, Chapter 13, draws the diverse themes together into a unified theoretical structure by which the vegetation change phenomena may be understood.
Author: R. Hunt
Author: R. Hunt
Author: Kevin J. Grimm
Author: Arne Pommerening
Author: Yin Bun Cheung
Author: Sean Ellis
Author: Donella H. Meadows
Author: C.A. van Bochove
Author: Gary Bañuelos
Author: Hadi Dowlatabadi
Author: C.J. Burrows