- Provides strong support in preparing for the topics on the AQA A-level Economics specification - Features up-to-date case studies that engage with the latest economic developments, including the effects of Brexit, the pandemic and more - Includes features to help with quantitative skills support and developing chains of reasoning, plus making links between topics, with updated exam-style questions - Gives some of the relevant background and real-world examples to help understanding of key economic issues, with clear and simple explanations of core concepts - A new edition of a trusted resource, which maintains and develops its accessibility to make economics compeling for a wider audience - Key topics for AQA A-level Economics, revised and up to date wiht new material including refreshed case studies, exam-style qustions and study tips

Reinforce understanding throughout the course with clear topic summaries and sample questions and answers to help students target higher grades. This new edition Student Guide has been fully updated for 2020 and covers Theme 1: Introduction to markets and market failure (topics 1 - 8). With clear topic summaries of content needed for the exams, knowledge-check questions and samples of exam-style questions and answers throughout, this guide will help you prepare for exams with confidence. - Identify key content for the exams with our concise summary of topics - Find out what examiners are looking for with our Questions and Answers section - Test your knowledge with rapid-fire questions and answers - Avoid common pitfalls with clear definitions and exam tips throughout - Reinforce learning with bullet-list summaries at the end of each section

Exam Board: AQA Level: AS/A-level Subject: Economics First Teaching: September 2015 First Exam: June 2016 Build knowledge of Economics through active learning with the latest Powell textbook, featuring quantitative skills practice and brand new case studies. This textbook has been fully revised to reflect the 2015 AQA A-level specification, giving you up-to-date material that supports your teaching and will enable your students to: - Develop subject knowledge with topic-by-topic support from Ray Powell and James Powell, who both have extensive experience in teaching and examining - Demonstrate awareness of current issues in Economics through brand new case studies that also help build analytical and evaluative skills - Use the language of economics to explain important concepts and issues effectively, with key terms identified throughout the text and glossaries for both microeconomics and macroeconomics - Build quantitative skills with worked examples - Stretch and challenge their knowledge with extension materials - Prepare for exams with practice questions and activities throughout

When water leaves a treatment works and travels through a distribution system, its quality, with respect to many chemical and biological parameters, will degrade. The quality of the delivered water will be largely influenced by: .The quality of treated water supplied into the network .The condition of distribution assets within the network .The retention time within the network. The water industry has focused predominantly on the quality of treated water and the physical condition of distribution assets when improving the quality of water at the customer's tap. However the quality of the water delivered is also affected by the time the water is retained in the different elements of the distribution network. Retention time is controlled both by the physical characteristics of the system and the operational regime. Physical characteristics such as pipe roughness may change throughout the life of the asset or be modified by rehabilitation. Operational activities may be structured; for example, pump scheduling and planned maintenance, or uncontrolled as in the case of demand driven operational responses. Changes to water quality result from the reactions in the bulk water with time and through the chemical and biological reactions with the distribution system materials with which The chemical and biological reactions in the bulk water are relatively well understood enabling development of models and software for predicting changes. The reactions of the water at the pipe-water interface are more complex and less well understood. The aim of this research is to demonstrate that water quality within distribution networks can be managed effectively by controlling retention time and to develop practical and pragmatic methodologies for doing so.

Reinforce your understanding throughout the course with clear topic summaries and sample questions and answers to help students target higher grades. This new edition Student Guide has been fully updated for 2020 and covers Theme 2: The national and international economy (topics 9 - 14). With clear topic summaries of content needed for the exams, knowledge-check questions and samples of exam-style questions and answers throughout, this guide will help you prepare for exams with confidence. - Identify key content for the exams with our concise summary of topics - Find out what examiners are looking for with our Questions and Answers section - Test your knowledge with rapid-fire questions and answers - Avoid common pitfalls with clear definitions and exam tips throughout - Reinforce learning with bullet-list summaries at the end of each section

Exam Board: AQA, Edexcel, OCR Level: A-level Subject: Economics First teaching: September 2015 First exams: Summer 2017 Master the skills you need to set yourself apart and hit the highest grades; this year-round course companion develops the higher-order thinking skills that top-achieving students possess, providing step-by-step guidance, examples and tips for getting an A grade. Written by experienced author and teacher James Powell, Aiming for an A in A-level Economics: - Helps you develop the 'A grade skills' of analysis, evaluation, creation and application - Takes you step by step through specific skills you need to master in A-level Economics, so you can apply these skills and approach each exam question as an A/A* candidate - Clearly shows how to move up the grades with sample responses annotated to highlight the key features of A/A* answers - Helps you practise to achieve the levels expected of top-performing students, using in-class or homework activities and further reading tasks that stretch towards university-level study - Perfects exam technique through practical tips and examples of common pitfalls to avoid - Cultivates effective revision habits for success, with tips and strategies for producing and using revision resources Supports the major exam boards, outlining the Assessment Objectives for reaching the higher levels under the AQA, Edexcel and OCR specifications.

The Moon is the most viewed object in the sky, the Sun being too bright to look at directly and the planets too far away. The Greeks deduced everything that could be learned about the Moon using only the naked eye, including that it has no light of its own but reflects that of the Sun. They understood the cause of eclipses and used the Earth's shadow on the Moon to conclude that our planet is a sphere and to calculate the size of both the Moon and the Earth. The invention of the telescope some two millennia later offered the opportunity for much greater understanding, but the early observers became sidetracked onto a dead end: First, they fooled themselves into believing that they saw evidence of life on the Moon, even the works of a civilization. Second, they became convinced that the craters of the Moon were volcanoes like those we have on the Earth. These wrong-headed beliefs took centuries to dispel. The origin of the Moon itself has proven an even more difficult question, but scientists have now closed in on the answer. They find that our placid and seemingly unchanging Moon was born in colossal violence as a planet the size of Mars crashed into the primordial Earth and flung off a blob that solidified to become our heavenly companion. Unlocking the Moon's Secrets follows these developments to show how science evolves, complete with misunderstandings, contentious arguments, difficult to relinquish assumptions, and shifting views as new facts come to light. Thanks to the work of generations of determined scientists, we understand our Moon, at last.

This collection of papers delivered at the Fifth International Symposium in Economic Theory and Econometrics in 1988 is devoted to the estimation and testing of models that impose relatively weak restrictions on the stochastic behaviour of data. Particularly in highly non-linear models, empirical results are very sensitive to the choice of the parametric form of the distribution of the observable variables, and often nonparametric and semiparametric models are a preferable alternative. Methods and applications that do not require string parametric assumptions for their validity, that are based on kernels and on series expansions, and methods for independent and dependent observations are investigated and developed in these essays by renowned econometricians.

This collection of papers delivered at the fifth international Symposium in Economic Theory and Econometrics in 1988 is devoted to recent advances in the estimation and testing of models that impose relatively weak restrictions on the stochastic behavior of data. Particularly in highly nonlinear models, empirical results are very sensitive to the choice of the parametric form of the distribution of the observable variables, and often nonparametric and semiparametric models are a preferable alternative. Methods and applications that do not require strong parametric assumptions for their validity, that are based on kernels and on series expansions, and methods for independent and dependent observations, are investigated and developed in these essays by renowned econometricians.

From a young age many children express an interest in becoming a vet. However, the classic representation of the profession no longer fits with the realities of a modern veterinary career. Children in the 8-12 age group are encouraged to think about career options through dedicated syllabus programmes at Key Stages 2 and 3 and GCSE choices later on, but there is no veterinary career book for this age group. To Vet School and Beyond is written in an easy-to-read format, enabling the book to be a point of reference right through from pre-GSCE to A level. Bold and interactive, with plenty of illustrations and sub-sections, the book is a fresh and modern perspective on the veterinary career. For children who are curious about the veterinary world. This fun and approachable book introduces, through profiles of real vets, the different sectors beyond the familiar small animal/family vet practice in which veterinarians can work, such as research, fish veterinary, zoo medicine and charity work. It also provides some guidance in how to study to get into veterinary school.

Exam Board: AQA Level: AS/A-level Subject: Economics First Teaching: September 2015 First Exam: June 2016 Build knowledge of Economics through active learning with the latest Powell textbook, featuring quantitative skills practice and brand new case studies. This textbook has been fully revised to reflect the 2015 AQA A-level specification, giving you up-to-date material that supports your teaching and will enable your students to: - Develop subject knowledge with topic-by-topic support from Ray Powell and James Powell, who both have extensive experience in teaching and examining - Demonstrate awareness of current issues in Economics through brand new case studies that also help build analytical and evaluative skills - Use the language of economics to explain important concepts and issues effectively, with key terms identified throughout the text and glossaries for both microeconomics and macroeconomics - Build quantitative skills with worked examples - Stretch and challenge their knowledge with extension materials - Prepare for exams with practice questions and activities throughout

The universe that science reveals to us can seem far outside the comfort zone of the human mind. Subjects near and far open up dizzying vistas, from the infinitesimal to the colossal. Humanity, the unlikely product of uncountable coincidences on unimaginable scales, inhabits a tumultuous universe that extends from our immediate environs to the most distant galaxies and beyond. But when the mind balks at the vertiginous complexity of the universe, science unveils the elegance amid the chaos. In this book, Thomas R. Scott ventures into the known and the unknown to explain our universe and the laws that govern it. The Universe as It Really Is begins with physics and the building blocks of the universe-time, gravity, light, and elementary particles-and chemistry's ability to explain the interactions among them. Scott, with the assistance of James Lawrence Powell, next tours the earth and atmospheric sciences to explain the forces that shape our planet and then takes off for the stars to describe our place in the cosmos. He provides vivid introductions to our collective scientific inheritance, narrating discoveries such as the shape of the atom and the nature of the nucleus or how we use GPS to measure time and what that has to do with relativity. A clear demonstration of the power of scientific reasoning to bring the incomprehensible within our grasp, The Universe as It Really Is gives an engrossing account of just how much we do understand about the world around us.

As his health begins to fail, a historian in the year 2084 sets out to document the irreparable damage climate change has wrought on the planet over the course of his life. He interviews scientists, political leaders and ordinary people all around the world who have suffered its catastrophic effects, from devastating floods and mass droughts to war and famine. In a series of short chapters, we learn that much of New York has been abandoned, 50 million Bangladeshis are refugees and half of the Netherlands is under water. This is all fiction. But it is rooted in scientific fact. Written by a professor of geochemistry, James Lawrence Powell, The 2084 Report accurately chronicles the future we will face if nothing is done to address the climate crisis. A vivid portrait of climate change and its tangible impact on our lives, The 2084 Report is a powerful prophecy and urgent call to action.

Modern science is under the greatest and most successful attack in recent history. An industry of denial, abetted by news media and "info-tainment" broadcasters more interested in selling controversy than presenting facts, has duped half the American public into rejecting the facts of climate science -- an overwhelming body of rigorously vetted scientific evidence showing that human-caused, carbon-based emissions are linked to warming the Earth. The industry of climate science denial is succeeding: public acceptance has declined even as the scientific evidence for global warming has increased. It is vital that the public understand how anti-science ideologues, pseudo-scientists, and non-scientists have bamboozled them. We cannot afford to get global warming wrong -- yet we are, thanks to deniers and their methods.

"The Inquisition of Climate Science" is the first book to comprehensively take on the climate science denial movement and the deniers themselves, exposing their lack of credentials, their extensive industry funding, and their failure to provide any alternative theory to explain the observed evidence of warming. In this book, readers meet the most prominent deniers while dissecting their credentials, arguments, and lack of objectivity. James Lawrence Powell shows that the deniers use a wide variety of deceptive rhetorical techniques, many stretching back to ancient Greece. Carefully researched, fully referenced, and compellingly written, his book clearly reveals that the evidence of global warming is real and that an industry of denial has deceived the American public, putting them and their grandchildren at risk.

Modern science is under the greatest and most successful attack in recent history. An industry of denial, abetted by news media and "info-tainment" broadcasters more interested in selling controversy than presenting facts, has duped half the American public into rejecting the facts of climate science -- an overwhelming body of rigorously vetted scientific evidence showing that human-caused, carbon-based emissions are linked to warming the Earth. The industry of climate science denial is succeeding: public acceptance has declined even as the scientific evidence for global warming has increased. It is vital that the public understand how anti-science ideologues, pseudo-scientists, and non-scientists have bamboozled them. We cannot afford to get global warming wrong -- yet we are, thanks to deniers and their methods.

"The Inquisition of Climate Science" is the first book to comprehensively take on the climate science denial movement and the deniers themselves, exposing their lack of credentials, their extensive industry funding, and their failure to provide any alternative theory to explain the observed evidence of warming. In this book, readers meet the most prominent deniers while dissecting their credentials, arguments, and lack of objectivity. James Lawrence Powell shows that the deniers use a wide variety of deceptive rhetorical techniques, many stretching back to ancient Greece. Carefully researched, fully referenced, and compellingly written, his book clearly reveals that the evidence of global warming is real and that an industry of denial has deceived the American public, putting them and their grandchildren at risk.