Dose-Response Analysis Using R

Dose-Response Analysis Using R
Title Dose-Response Analysis Using R PDF eBook
Author Christian Ritz
Publisher CRC Press
Pages 227
Release 2019-07-19
Genre Mathematics
ISBN 1351981048

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Nowadays the term dose-response is used in many different contexts and many different scientific disciplines including agriculture, biochemistry, chemistry, environmental sciences, genetics, pharmacology, plant sciences, toxicology, and zoology. In the 1940 and 1950s, dose-response analysis was intimately linked to evaluation of toxicity in terms of binary responses, such as immobility and mortality, with a limited number of doses of a toxic compound being compared to a control group (dose 0). Later, dose-response analysis has been extended to other types of data and to more complex experimental designs. Moreover, estimation of model parameters has undergone a dramatic change, from struggling with cumbersome manual operations and transformations with pen and paper to rapid calculations on any laptop. Advances in statistical software have fueled this development. Key Features: Provides a practical and comprehensive overview of dose-response analysis. Includes numerous real data examples to illustrate the methodology. R code is integrated into the text to give guidance on applying the methods. Written with minimal mathematics to be suitable for practitioners. Includes code and datasets on the book’s GitHub: https://github.com/DoseResponse. This book focuses on estimation and interpretation of entirely parametric nonlinear dose-response models using the powerful statistical environment R. Specifically, this book introduces dose-response analysis of continuous, binomial, count, multinomial, and event-time dose-response data. The statistical models used are partly special cases, partly extensions of nonlinear regression models, generalized linear and nonlinear regression models, and nonlinear mixed-effects models (for hierarchical dose-response data). Both simple and complex dose-response experiments will be analyzed.

Modeling Dose-Response Microarray Data in Early Drug Development Experiments Using R

Modeling Dose-Response Microarray Data in Early Drug Development Experiments Using R
Title Modeling Dose-Response Microarray Data in Early Drug Development Experiments Using R PDF eBook
Author Dan Lin
Publisher Springer Science & Business Media
Pages 285
Release 2012-08-27
Genre Mathematics
ISBN 3642240070

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This book focuses on the analysis of dose-response microarray data in pharmaceutical settings, the goal being to cover this important topic for early drug development experiments and to provide user-friendly R packages that can be used to analyze this data. It is intended for biostatisticians and bioinformaticians in the pharmaceutical industry, biologists, and biostatistics/bioinformatics graduate students. Part I of the book is an introduction, in which we discuss the dose-response setting and the problem of estimating normal means under order restrictions. In particular, we discuss the pooled-adjacent-violator (PAV) algorithm and isotonic regression, as well as inference under order restrictions and non-linear parametric models, which are used in the second part of the book. Part II is the core of the book, in which we focus on the analysis of dose-response microarray data. Methodological topics discussed include: • Multiplicity adjustment • Test statistics and procedures for the analysis of dose-response microarray data • Resampling-based inference and use of the SAM method for small-variance genes in the data • Identification and classification of dose-response curve shapes • Clustering of order-restricted (but not necessarily monotone) dose-response profiles • Gene set analysis to facilitate the interpretation of microarray results • Hierarchical Bayesian models and Bayesian variable selection • Non-linear models for dose-response microarray data • Multiple contrast tests • Multiple confidence intervals for selected parameters adjusted for the false coverage-statement rate All methodological issues in the book are illustrated using real-world examples of dose-response microarray datasets from early drug development experiments.

Nonlinear Regression with R

Nonlinear Regression with R
Title Nonlinear Regression with R PDF eBook
Author Christian Ritz
Publisher Springer Science & Business Media
Pages 151
Release 2008-12-11
Genre Mathematics
ISBN 0387096167

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- Coherent and unified treatment of nonlinear regression with R. - Example-based approach. - Wide area of application.

Dose-Response Analysis Using R

Dose-Response Analysis Using R
Title Dose-Response Analysis Using R PDF eBook
Author Christian Ritz
Publisher CRC Press
Pages 310
Release 2019-07-19
Genre Mathematics
ISBN 135198103X

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Nowadays the term dose-response is used in many different contexts and many different scientific disciplines including agriculture, biochemistry, chemistry, environmental sciences, genetics, pharmacology, plant sciences, toxicology, and zoology. In the 1940 and 1950s, dose-response analysis was intimately linked to evaluation of toxicity in terms of binary responses, such as immobility and mortality, with a limited number of doses of a toxic compound being compared to a control group (dose 0). Later, dose-response analysis has been extended to other types of data and to more complex experimental designs. Moreover, estimation of model parameters has undergone a dramatic change, from struggling with cumbersome manual operations and transformations with pen and paper to rapid calculations on any laptop. Advances in statistical software have fueled this development. Key Features: Provides a practical and comprehensive overview of dose-response analysis. Includes numerous real data examples to illustrate the methodology. R code is integrated into the text to give guidance on applying the methods. Written with minimal mathematics to be suitable for practitioners. Includes code and datasets on the book’s GitHub: https://github.com/DoseResponse. This book focuses on estimation and interpretation of entirely parametric nonlinear dose-response models using the powerful statistical environment R. Specifically, this book introduces dose-response analysis of continuous, binomial, count, multinomial, and event-time dose-response data. The statistical models used are partly special cases, partly extensions of nonlinear regression models, generalized linear and nonlinear regression models, and nonlinear mixed-effects models (for hierarchical dose-response data). Both simple and complex dose-response experiments will be analyzed.

Science and Decisions

Science and Decisions
Title Science and Decisions PDF eBook
Author National Research Council
Publisher National Academies Press
Pages 422
Release 2009-03-24
Genre Political Science
ISBN 0309120462

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Risk assessment has become a dominant public policy tool for making choices, based on limited resources, to protect public health and the environment. It has been instrumental to the mission of the U.S. Environmental Protection Agency (EPA) as well as other federal agencies in evaluating public health concerns, informing regulatory and technological decisions, prioritizing research needs and funding, and in developing approaches for cost-benefit analysis. However, risk assessment is at a crossroads. Despite advances in the field, risk assessment faces a number of significant challenges including lengthy delays in making complex decisions; lack of data leading to significant uncertainty in risk assessments; and many chemicals in the marketplace that have not been evaluated and emerging agents requiring assessment. Science and Decisions makes practical scientific and technical recommendations to address these challenges. This book is a complement to the widely used 1983 National Academies book, Risk Assessment in the Federal Government (also known as the Red Book). The earlier book established a framework for the concepts and conduct of risk assessment that has been adopted by numerous expert committees, regulatory agencies, and public health institutions. The new book embeds these concepts within a broader framework for risk-based decision-making. Together, these are essential references for those working in the regulatory and public health fields.

10 Steps to Develop Great Learners

10 Steps to Develop Great Learners
Title 10 Steps to Develop Great Learners PDF eBook
Author John Hattie
Publisher Routledge
Pages 168
Release 2022-04-07
Genre Education
ISBN 1000574164

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What can concerned parents and carers do to ensure their children, of all ages, develop great learning habits which will help them achieve their maximum at school and in life? This is probably one of the most important questions any parent can ask and now John Hattie, one of the most respected and renowned Education researchers in the world draws on his globally famous Visible Learning research to provide some answers. Writing this book with his own son Kyle, himself a respected teacher, the Hatties offer a 10-step plan to nurturing curiosity and intellectual ambition and providing a home environment that encourages and values learning. These simple steps based on the strongest of research evidence and packed full of practical advice can be followed by any parent or carer to support and enhance learning and maximize the potential of their children. Areas covered include: Communicating effectively with teachers Being the ‘first learner’ and demonstrating openness to new ideas and thinking Choosing the right school for your child Promoting the ‘language of learning’ Having appropriately high expectations and understanding the power of feedback Anyone concerned about the education and development of our children should read this book. For parents it is an essential guide that could make a vital difference to your child's life. For schools, school leaders and education authorities this is a book you should be encouraging every parent to read to support learning and maximize opportunities for all.

Drug Synergism and Dose-Effect Data Analysis

Drug Synergism and Dose-Effect Data Analysis
Title Drug Synergism and Dose-Effect Data Analysis PDF eBook
Author Ronald J. Tallarida
Publisher CRC Press
Pages 268
Release 2000-07-21
Genre Mathematics
ISBN 1420036106

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Not since this author's bestselling Manual of Pharmacologic Calculation has there been an available reference for drug data analysis. Incorporating the most relevant parts of that work, Drug Synergism and Dose-Effect Data Analysis focuses on drug combinations and all the quantitative analyses needed to analyze drug combination dose-effect data and to design experiments with two or more compounds. The book contains the statistical methods, the theory, and the computation algorithms needed to analyze single and combination drug data. Numerous examples accompany a presentation that illustrates the calculations and experimental design considerations for modern drug analysis.