Biopotential Readout Circuits for Portable Acquisition Systems describes one of the main building blocks of such miniaturized biomedical signal acquisition systems. The focus of this book is on the implementation of low-power and high-performance integrated circuit building blocks that can be used to extract biopotential signals from conventional biopotential electrodes. New instrumentation amplifier architectures are introduced and their design is described in detail. These amplifiers are used to implement complete acquisition demonstrator systems that are a stepping stone towards practical miniaturized and low-power systems.
This book presents fundamental requirements, electrical specification, and parameter tradeoffs of wearable EEG acquisition circuits, especially those compatible with dry electrodes for user-friendly recordings. The authors introduce active electrode, the most promising solution for dry electrodes-based EEG measurement. This architectural concept has been combined with various, innovative circuit design techniques to illustrate structured IC design methodologies for high performance EEG recording. This book also gives examples on the design, implementation and evaluation of three generations of active electrode ICs.
This book discusses the design and implementation aspects of ultra-low power biosignal acquisition platforms that exploit analog-assisted and algorithmic approaches for power savings.The authors describe an approach referred to as “analog-and-algorithm-assisted” signal processing.This enables significant power consumption reductions by implementing low power biosignal acquisition systems, leveraging analog preprocessing and algorithmic approaches to reduce the data rate very early in the signal processing chain.They demonstrate savings for wearable sensor networks (WSN) and body area networks (BAN), in the sensors’ stimulation power consumption, as well in the power consumption of the digital signal processing and the radio link. Two specific implementations, an adaptive sampling electrocardiogram (ECG) acquisition and a compressive sampling (CS) photoplethysmogram (PPG) acquisition system, are demonstrated. First book to present the so called, “analog-and-algorithm-assisted” approaches for ultra-low power biosignal acquisition and processing platforms; Covers the recent trend of “beyond Nyquist rate” signal acquisition and processing in detail, including adaptive sampling and compressive sampling paradigms; Includes chapters on compressed domain feature extraction, as well as acquisition of photoplethysmogram, an emerging optical sensing modality, including compressive sampling based PPG readout with embedded feature extraction; Discusses emerging trends in sensor fusion for improving the signal integrity, as well as lowering the power consumption of biosignal acquisition systems.
EPDF and EPUB available Open Access under CC-BY-NC-ND licence. This book provides new insights into the challenges facing older people in the context of the COVID-19 pandemic. It draws upon novel qualitative longitudinal research which recorded the experiences of a diverse group of people aged 50+ in Greater Manchester over a 12-month period during the pandemic. The book analyses their lived experiences and those of organisations working to support them, shedding light on the isolating effects of social distancing. Covering 21 organisations, as well as 102 people from four ethnic/identity groups, the authors argue that the pandemic exacerbated existing inequalities in the UK, disproportionately affecting low-income neighbourhoods and Black, Asian and minority ethnic (BAME) communities. The book outlines recommendations in relation to developing a 'community-centred approach' in responding to future variants of COVID-19, as well as making suggestions for how to create post-pandemic neighbourhoods.
This book describes ultra low power capacitive sensor interfaces, and presents the realization of a very low power generic sensor interface chip that is adaptable to a broad range of capacitive sensors. The book opens by reviewing important design aspects for autonomous sensor systems, discusses different building blocks, and presents the modular architecture for the generic sensor interface chip. Finally, the generic sensor interface chip is shown in state-of-the-art applications.
Ageing in Place in Urban Environments considers together two major trends influencing economic and social life: population ageing on the one side and urbanisation on the other. Both have been identified as dominant demographic trends of the twenty-first century. Cities are where the majority of people of all ages now live and where they will spend their old age. Nevertheless, cities are typically imagined and structured with a younger, working-age population in mind while older people are rarely incorporated into the mainstream of thinking and planning around urban environments. Cities can contribute to vulnerability arising from high levels of population turnover, environmental problems, gentrification, and reduced availability of affordable housing. However, they can also provide innovative forms of support and services essential to promoting the quality of life of older people. Policies in Europe have emphasised the role of the local environment in promoting “ageing in place”, a term used to describe the goal of helping people to remain in their own homes and communities for as long as they wish. However, while this has been the dominant approach, the places in which older people are ageing have often proved to be challenging environments. The book explores the forces behind these developments and how older people have responded. Drawing upon approaches from social gerontology, urban studies, geography, and sociology, this book will be essential reading for researchers, policymakers, and practitioners searching for innovative ways to improve the lives of older people living in urban environments.
ÔThe question Chris Gibson and his colleagues answer in this book is simple: ÒWhy is it not easy being green?Ó In 20 concise, focused and accessible chapters Ð from birthing to dying, from toilets to Christmas Ð they unveil the ambiguities, instabilities and paradoxes of affluent household living in the 21st century. In so doing, they temper the easy rhetoric of sustainable lifestyles with some authentic realities drawn from the affluent world. Earth system science is showing us the deep complexity of our material planet. This book brilliantly reflects back to us the complex materiality of our cultural lives.Õ Ð Mike Hulme, University of East Anglia, UK Contrary to the common rhetoric that being green is ÔeasyÕ, household sustainability is rife with contradiction and uncertainty. Households attempting to respond to the challenge to become more sustainable in everyday life face dilemmas on a daily basis when trying to make sustainable decisions. Various aspects of life such as cars, computers, food, phones and even birth and death, may all provoke uncertainty regarding the most sustainable course of action. Drawing on international scientific and cultural research, as well as innovative ethnographies, this timely book probes these wide-ranging sustainability dilemmas, assessing the avenues open to households trying to improve their sustainability. The authors engage critically, and constructively, with the proposition that households are a key scale of action on climate change. They confront dilemmas of practice and circumstance, and cultural norms of lifestyle and consumerism that are linked to troublesome environmental problems Ð and question whether they can be easily unsettled. The work also illuminates the informal and often unheralded work by households Ð frequently the poorest Ð in reducing their environmental burden. This important book is critical to understanding both the barriers to household sustainability and the ÔunsungÕ sustainability work carried out by householders. Containing a unique combination of science and cultural research, this fascinating book will appeal to researchers and students of environmental science, environmental studies, sustainability studies, climate change adaptation, geography, sociology, cultural studies, science and technology studies, as well as energy studies and housing research. Policy-makers in various levels of government working through sustainability problems, environmental educators, social planners and sustainability officers working for governments, will also find much to interest them in this unique book.
Modern RF receivers and transmitters require quadrature oscillators with accurate quadrature and low phase-noise. Existing literature is dedicated mainly to single oscillators, and is strongly biased towards LC oscillators. This book is devoted to quadrature oscillatorsand presents adetailed comparative study ofLC and RCosc- lators, both at architectural and at circuit levels. It is shown that in cross-coupled RC oscillators both the quadrature error and phase-noise are reduced, whereas in LC - cillators the coupling decreases the quadrature error, but increases the phase-noise. Thus, quadrature RC oscillators can be a practical alternative to LC oscillators, - pecially when area and cost are to be minimized. The main topics of the book are: cross-coupled LC quasi-sinusoidal oscillators, cross-coupled RC relaxation oscillators, a quadrature RC oscillator-mixer, and t- integrator oscillators. The effect of mismatches on the phase-error and the pha- noise are thoroughly investigated. The book includes many experimental results, obtained from different integrated circuit prototypes, in the GHz range. A structured design approach is followed: a technology independent study, with ideal blocks, is performed initially, and then the circuit level design is addressed. This book can be used in advanced courses on RF circuit design. In addition to post-graduate students and lecturers, this book will be of interest to design engineers and researchers in this area.
With the major redeployment of staff during the Covid-19 pandemic, this authoritative textbook provides a practical resource for healthcare professionals who may be new to acute and critical care settings. Written by nurses for nurses, the book will help readers master patient assessment, non-invasive ventilation, the use of high flow nasal oxygenation and renal care. You will learn about the challenges of resuscitation, leadership and responding to a public health emergency, and effective personal protection and hygiene practices. Covid-19: Critical Care textbook has been written by experts with frontline experience of working in hospitals during the pandemic and will remain relevant for those responding to future infectious disease outbreaks or waves of Covid-19. - Self-assessment quizzes to support ongoing learning - Suitable for staff re-deployed and those already working in acute and critical care areas - Fully illustrated to demonstrate the use of PPE and coronavirus-specific procedures - Contributions from key experts who have dealt directly with the disease provide practical insights
A unique, beautifully illustrated exploration of our fascination with our closest primate relatives, and the development of primatology as a discipline This insightful work is a compact but wide-ranging survey of humankind’s relationship to the great apes (chimpanzees, bonobos, gorillas, orangutans), from antiquity to the present. Replete with fascinating historical details and anecdotes, it traces twists and turns in our construction of primate knowledge over five hundred years. Chris Herzfeld outlines the development of primatology and its key players and events, including well-known long-term field studies, notably the pioneering work by women such as Jane Goodall, Dian Fossey, and Biruté Galdikas. Herzfeld seeks to heighten our understanding of great apes and the many ways they are like us. The reader will encounter apes living in human families, painting apes, apes who use American Sign Language, and chimpanzees who travelled in space. A philosopher and historian specializing in primatology, Herzfeld offers thought-provoking insights about our perceptions of apes, as well as the boundary between “human” and “ape” and what it means to be either.
Much has been written about Vincent van Gogh and his tempestuous relationship with his brother Theo. But few people know that there was a third Van Gogh brother, Cornelis, who was raised in the Netherlands, but worked, married and died in South Africa. The son of a Protestant minister, Cor spent his youth in a series of small Dutch towns, with idyllic holidays walking in the countryside with his artist brother, before troubles and tragedies beset the Van Gogh family. In 1889, the twenty-two-year-old Cor sailed to South Africa, where he worked as an engineer on the gold mines and on the railways. In the Anglo-Boer War he joined the Boers, first as a railway engineer and later on commando in the Free State, where in 1900 he suffered a fate that echoed his famous brother’s tragic end. The Unknown Van Gogh recreates South Africa in the tumultuous last decade of the nineteenth century; reconstructs the personal story of a young immigrant from letters and other archival documents; and explores his relationship with his famous brother Vincent. With new insights based on original research, this book uncovers a figure who has been forgotten by history.
“... after reading [the] first-person accounts in this book I feel as if someone has opened a door and let me in, helped me see ‘what it was really like.’ This book magically allows me to feel I was there for all of it. It will do the same for you.” — Catherine Ryan Hyde, author, Pay It Forward “A delightfully inspirational book about the power of a small band of people to make a big difference. Read it and help our world become a better place.” — Robin Sharma, author, The Monk Who Sold His Ferrari and The Saint, The Surfer and The CEO “Virtual angels.”—Elle This candid and inspirational account of the numerous acts of kindness performed by the Kindness Crew provides readers with ways to start their own kindness movement by showing them how to put the kindness philosophy into action. The crew explores cross-cultural, cross-generational, and corporate kindness as well as the power of one, kindness on the street, and extreme acts of kindness. The Extreme Kindness Tour shares heartwarming stories, testimonials, and photographs. An extensive resources section contains lists of recommended books, websites, and activities for people looking to start or join a kindness movement in their own community.
This book describes ultra low power capacitive sensor interfaces, and presents the realization of a very low power generic sensor interface chip that is adaptable to a broad range of capacitive sensors. The book opens by reviewing important design aspects for autonomous sensor systems, discusses different building blocks, and presents the modular architecture for the generic sensor interface chip. Finally, the generic sensor interface chip is shown in state-of-the-art applications.
This book presents fundamental requirements, electrical specification, and parameter tradeoffs of wearable EEG acquisition circuits, especially those compatible with dry electrodes for user-friendly recordings. The authors introduce active electrode, the most promising solution for dry electrodes-based EEG measurement. This architectural concept has been combined with various, innovative circuit design techniques to illustrate structured IC design methodologies for high performance EEG recording. This book also gives examples on the design, implementation and evaluation of three generations of active electrode ICs.
This book discusses the design and implementation aspects of ultra-low power biosignal acquisition platforms that exploit analog-assisted and algorithmic approaches for power savings.The authors describe an approach referred to as “analog-and-algorithm-assisted” signal processing.This enables significant power consumption reductions by implementing low power biosignal acquisition systems, leveraging analog preprocessing and algorithmic approaches to reduce the data rate very early in the signal processing chain.They demonstrate savings for wearable sensor networks (WSN) and body area networks (BAN), in the sensors’ stimulation power consumption, as well in the power consumption of the digital signal processing and the radio link. Two specific implementations, an adaptive sampling electrocardiogram (ECG) acquisition and a compressive sampling (CS) photoplethysmogram (PPG) acquisition system, are demonstrated. First book to present the so called, “analog-and-algorithm-assisted” approaches for ultra-low power biosignal acquisition and processing platforms; Covers the recent trend of “beyond Nyquist rate” signal acquisition and processing in detail, including adaptive sampling and compressive sampling paradigms; Includes chapters on compressed domain feature extraction, as well as acquisition of photoplethysmogram, an emerging optical sensing modality, including compressive sampling based PPG readout with embedded feature extraction; Discusses emerging trends in sensor fusion for improving the signal integrity, as well as lowering the power consumption of biosignal acquisition systems.
Biopotential Readout Circuits for Portable Acquisition Systems describes one of the main building blocks of such miniaturized biomedical signal acquisition systems. The focus of this book is on the implementation of low-power and high-performance integrated circuit building blocks that can be used to extract biopotential signals from conventional biopotential electrodes. New instrumentation amplifier architectures are introduced and their design is described in detail. These amplifiers are used to implement complete acquisition demonstrator systems that are a stepping stone towards practical miniaturized and low-power systems.
This will help us customize your experience to showcase the most relevant content to your age group
Please select from below
Login
Not registered?
Sign up
Already registered?
Success – Your message will goes here
We'd love to hear from you!
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.