Doctor Billings, who researched and formulated the ovulation method, explains its use.

Nonlinear System Identification: NARMAX Methods in the Time, Frequency, and Spatio-Temporal Domains describes a comprehensive framework for the identification and analysis of nonlinear dynamic systems in the time, frequency, and spatio-temporal domains. This book is written with an emphasis on making the algorithms accessible so that they can be applied and used in practice. Includes coverage of: The NARMAX (nonlinear autoregressive moving average with exogenous inputs) model The orthogonal least squares algorithm that allows models to be built term by term where the error reduction ratio reveals the percentage contribution of each model term Statistical and qualitative model validation methods that can be applied to any model class Generalised frequency response functions which provide significant insight into nonlinear behaviours A completely new class of filters that can move, split, spread, and focus energy The response spectrum map and the study of sub harmonic and severely nonlinear systems Algorithms that can track rapid time variation in both linear and nonlinear systems The important class of spatio-temporal systems that evolve over both space and time Many case study examples from modelling space weather, through identification of a model of the visual processing system of fruit flies, to tracking causality in EEG data are all included to demonstrate how easily the methods can be applied in practice and to show the insight that the algorithms reveal even for complex systems NARMAX algorithms provide a fundamentally different approach to nonlinear system identification and signal processing for nonlinear systems. NARMAX methods provide models that are transparent, which can easily be analysed, and which can be used to solve real problems. This book is intended for graduates, postgraduates and researchers in the sciences and engineering, and also for users from other fields who have collected data and who wish to identify models to help to understand the dynamics of their systems.

The "contraceptive revolution" of the 1960s and 1970s introduced totally new contraceptive options and launched an era of research and product development. Yet by the late 1980s, conditions had changed and improvements in contraceptive products, while very important in relation to improved oral contraceptives, IUDs, implants, and injectables, had become primarily incremental. Is it time for a second contraceptive revolution and how might it happen? Contraceptive Research and Development explores the frontiers of science where the contraceptives of the future are likely to be found and lays out criteria for deciding where to make the next R&D investments. The book comprehensively examines today's contraceptive needs, identifies "niches" in those needs that seem most readily translatable into market terms, and scrutinizes issues that shape the market: method side effects and contraceptive failure, the challenge of HIV/AIDS and other sexually transmitted diseases, and the implications of the "women's agenda." Contraceptive Research and Development analyzes the response of the pharmaceutical industry to current dynamics in regulation, liability, public opinion, and the economics of the health sector and offers an integrated set of recommendations for public- and private-sector action to meet a whole new generation of demand.

Wanting a baby? Not wanting a baby just now? Nature has provided every woman with a precise signal of her state of fertility, which she can quickly learn to recognise. This simple fact is the basis of the Billings Method, which has helped millions of woman around the world to tune into their own bodies and achieve healthy, natural fertility control. Using the Billings Method you and your partner can be confident of knowing every day whether you are fertile or infertile, and so decide when to make love, depending on wether you want to achieve or avoid pregnancy. This book is a clear guide for all women, whether your cycles are regular or irregular, whether you are coming off the Pill, breastfeeding a new baby, or approaching the menopause. 'This is knowledge of her body that every woman ought to have' DR EVELYN BILLINGS

I opened my series editor manuscript of The Handbook of Contraception: A Guide for Practical Management, edited by Drs. Donna Shoupe and Siri Kjos, on a tiny plane on the way to giving a lecture in Albany, NY. I expected to peruse the ma- script, and found that I could not put it down. The Handbook of Contraception: A Guide for Practical Management is an incredibly informative and enjoyable read. In keeping with the objective of this series for primary care clinicians, there is a quality in this title that is uncommon among medical textbooks. The chapters of this book are written with extraordinary intelligence and und- standing, and with attention to practical considerations in the selection and mana- ment of contraceptive options. The authors have reviewed the science behind contraception, including the chemical structure and effects of hormonal contraception, physiology of contraception, efficacy rates, and side effects, as well as the practical considerations that are relevant in helping patients choose between different cont- ceptive options. They do this with a clarity of language and intent that lets the book cover with sufficient detail the full range of questions that any primary care clinician will have regarding any of the traditional or new contraceptive options. Also included in each chapter is a section on “counseling tips,” which explicitly answers many of the questions that clinicians and their patients often have when discussing contraceptive options. For a book so useful and well done, the editors and authors deserve our thanks.

The achievement of students of color continues to be disproportionately low at all levels of education. More than ever, Geneva Gay's foundational book on culturally responsive teaching is essential reading in addressing the needs of today's diverse student population. Combining insights from multicultural education theory and research with real-life classroom stories, Gay demonstrates that all students will perform better on multiple measures of achievement when teaching is filtered through their own cultural experiences. This bestselling text has been extensively revised to include expanded coverage of student ethnic groups: African and Latino Americans as well as Asian and Native Americans as well as new material on culturally diverse communication, addressing common myths about language diversity and the effects of "English Plus" instruction.

This book trains the next generation of scientists representing different disciplines to leverage the data generated during routine patient care. It formulates a more complete lexicon of evidence-based recommendations and support shared, ethical decision making by doctors with their patients. Diagnostic and therapeutic technologies continue to evolve rapidly, and both individual practitioners and clinical teams face increasingly complex ethical decisions. Unfortunately, the current state of medical knowledge does not provide the guidance to make the majority of clinical decisions on the basis of evidence. The present research infrastructure is inefficient and frequently produces unreliable results that cannot be replicated. Even randomized controlled trials (RCTs), the traditional gold standards of the research reliability hierarchy, are not without limitations. They can be costly, labor intensive, and slow, and can return results that are seldom generalizable to every patient population. Furthermore, many pertinent but unresolved clinical and medical systems issues do not seem to have attracted the interest of the research enterprise, which has come to focus instead on cellular and molecular investigations and single-agent (e.g., a drug or device) effects. For clinicians, the end result is a bit of a “data desert” when it comes to making decisions. The new research infrastructure proposed in this book will help the medical profession to make ethically sound and well informed decisions for their patients.

With sample lesson plans, student assessment forms (with rubrics), and other practical materials, this book shows how the principles of the Paideia Program can result in student learning and understanding.