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Showing 32,451 through 32,475 of 72,802 results

How Do Smart Homes Work? (High Tech Science at Home)

by Agnieszka Biskup

Imagine you arrive at school and realize you forgot to feed the dog. No problem. Pull out your phone and command the dog dish to dispense a serving of food. That's all there is to it - if you live a smart home. What once sounded like science fiction is now a reality for some families. People use smart phones and other devices to lock doors, turn on lights, close window shades, and check to see how much milk they have in the fridge. Find out how this technology works and what the future holds for smart homes.

How Do Spores Select Where to Settle?

by Matthias Heydt

In this thesis, Matthias Heydt applies digital in-line holography to achieve for the first time a complete three dimensional and real time motion analysis of Ulva zoospores, both in solution and in the vicinity of different surfaces. These results provide previously unknown information about the behavior and mechanism spores use to select a suitable site for settlement. This work gives deeper insight into biofouling algae and stimulates new design strategies for antifouling coatings. Furthermore, the tracking system developed during this research could be used as a new system for assessing the antifouling performance on different surfaces at very early points in time, allowing disentanglement of surface conditioning and interaction of spores with pristine chemistries.

How Do Virtual Assistants Work? (High Tech Science at Home)

by M. M. Eboch

A virtual assistant by any name - Alexa, Siri, whoever - can be a sweet addition to your home. You might use one for simple jobs like playing music or streaming podcasts. And you might use one to communicate with friends and remind you about homework coming due while helping you make your breakfast. Find out how digital assistants work and what the future might hold for this part of a high-tech home.

How Do We Know What Information Sharing Is Really Worth?: Exploring Methodologies to Measure the Value of Information Sharing and Fusion Efforts

by Brian A. Jackson

How Do We Know What Information Sharing Is Really Worth?: Exporing Methodologies to Measure the Value of Information Sharing and Fusion Efforts (Research Reports)

How Do You Raise a Raisin?

by Pam Muñoz Ryan

"People have been gobbling up this yummy nutritious treat for centuries. Ancient Greeks and Romans awarded raisins at sporting events. Astronauts have been taking raisins into space. Take a peek inside this tasty book-you'll find out how grapes become raisins, who introduced the seedless grapes, and the many uses for raisins besides snacks!" In between the facts about raisins, children will delight in the silly poems about raisins. This file should make an excellent embossed braille copy.

How Does a Smoke Detector Work?

by Liz Huyck

Ever wonder why a smoke alarm goes off? A battery, siren, and metal can work together to detect smoke and sound the alarm when catching a whiff of smoke.

How Does Streaming Work? (High Tech Science at Home)

by M. M. Eboch

Whether you're watching a movie, bingeing on a classic TV show, or listening to your favorite song, you're probably streaming it. Videotapes, DVDs, and CDs are mostly just memories now. Streaming puts a world of options at your fingertips when you’re at home and, with a smartphone or tablet, when you're on the go. Find out how streaming was invented, how it works, and what the future might hold for this part of a high-tech life.

How Does A Waterfall Become Electricity? (How Does It Happen)

by Robert Snedden

What is the world's tallest waterfall?What is the world's tallest waterfall? How do dams help generate water power? What happens when a waterwheel spins? This series explores the causes and effects that shape our world. From the underwater volcanoes that sprout into islands, to the rushing waterfalls that spark electric currents, this series demonstrates how both natural and man-made phenomena occur.

How Does Wi-Fi Work? (High Tech Science at Home)

by Mark Weakland

You probably use Wi-Fi all the time to connect to the internet through your laptop, tablet, or phone. It's easy. Wi-Fi hotspots surround you as you go through your day - from school to a pizza place or coffee shop and then back home. Not so long ago, the internet wasn't as accessible. Find out how Wi-Fi works, how it became commonplace, and what it might do for you in the future.

How Education Works: Teaching, Technology, and Technique (Issues in Distance Education)

by Jon Dron

In this engaging volume, Jon Dron views education, learning, and teaching through a technological lens that focuses on the parts we play in technologies, from language and pedagogies to computers and regulations. He proposes a new theory of education whereby individuals are not just users but co-participants in technologies— technologies that are intrinsic parts of our cognition, of which we form intrinsic parts, through which we are entangled with one another and the world around us. Dron reframes popular families of educational theory (objectivist, subjectivist, and complexivist) and explains a variety of educational phenomena, including the failure of learning style theories, the nature of literacies, systemic weaknesses in learning management systems, the prevalence of cheating in educational institutions, and the fundamental differences between online and in-person learning. Ultimately, How Education Works articulates how practitioners in education can usefully understand technology, education, and their relationship to improve teaching practice.

How Everything Works

by DK

Discover an all-in-one encyclopedia that takes you on an explanatory tour of the world from your own body to outer space.Have you ever wondered how an email gets to someone on the other side of the world in just a few seconds or why it&’s a bad idea to stand under a tree during a thunderstorm? Discover the answers to all these questions and more with these mind-boggling how things work books for children aged 9 and above!Each page of this mind-blowingly detailed and ambitious encyclopedia will guide you through the natural world and the technology that surrounds you. Giant, page-filling illustrations take objects apart – or take the roofs and walls off buildings – to show you how they work, explaining both basic principles (such as photosynthesis) as well as broader concepts (like how all the living things in a rainforest interact). Explore each and every page of this engaging how things work book to discover:- Key insights into both the natural and human worlds- Striking photography that brings certain concepts to life- A diverse range of chapters coinciding with STEM subjects at school In this how things work encyclopedia, chapters range from the human body to cities and industry, to planet Earth, taking in sleep patterns, cooking, sewage systems, wind farms, fungi spores, and plate tectonics along the way. How Everything Works is perfect for children studying STEM subjects at school or anyone who is simply curious about how nature and the modern world work.

How Fermented Foods Feed a Healthy Gut Microbiota: A Nutrition Continuum

by M. Andrea Azcarate-Peril Roland R. Arnold José M. Bruno-Bárcena

This book examines the role of fermented foods on human gut health and offers a unique contribution to this rapidly growing area of study. Fermented foods have been consumed by humans for millennia. This method of food preservation provided early humans with beneficial bacteria that re-populated the gut microbiota upon consumption. However, novel methods of production and conservation of food have led to severed ties between the food that modern humans consume and the gut microbiota. As a consequence, there has been a documented increase in the prevalence of autoimmune diseases and obesity, which has been correlated to decreased diversity of gut microbes, while infectious disorders have decreased in the three past decades.With the intention of providing a thorough overview of the relationship between fermented foods, nutrition, and health, the editors have grouped the chapters into three thematic sections: food and their associated microbes, the oral microbiome, and the gut microbiome. After an introduction dedicated to the environmental microbiome, Part I provides an overview of what is currently known about the microbes associated with different foods, and compares traditional forms of food preparation with current industrial techniques in terms of the potential loss of microbial diversity. The chapters in Part 2 explore the oral microbiota as a microbial gatekeeper and main contributor to the gut microbiota. Part 3 introduces beneficial modulators of the gut microbiome starting with the establishment of a healthy gut microbiota during infancy, and continuing with the role of probiotics and prebiotics in health preservation and the imbalances of the gut microbiota. In the final section the editors offer concluding remarks and provide a view of the future brought by the microbiome research revolution.This study is unique in its emphasis on the convergence of two very relevant fields of research: the field of studies on Lactic Acid Bacteria (LAB) and fermented foods, and microbiome research. The relationship between these fields, as presented by the research in this volume, demonstrates the intimate connection between fermented foods, the oral and gut microbiota, and human health. Although research has been done on the impact of diet on the gut microbiome there are no publications addressing the restorative role of food as microbe provider to the gut microbiota. This novel approach makes the edited volume a key resource for scientific researchers working in this field.

How Flavor Works

by Jung H. Han Nak-Eon Choi

Taste is the number one driving force in the decision to purchase a food product and food consumption is the most critical function for living organisms to obtain the energy and resources essential to their vitality. Flavor and aroma are therefore universally important concepts: intrinsic to human well-being and pleasure, and of huge significance for the multi-trillion dollar global food business.How Flavor Works: the Science of Taste and Aroma offers a fascinating and accessible primer on the concepts of flavor science for all who have an interest in food and related topics. Professionals and students of food science and technology who do not already specialize in flavor science will find it a valuable reference on a topic crucial to how consumers perceive and enjoy food products. In this regard, it will also be of interest to product developers, marketers and food processors. Other readers with a professional (eg culinary and food service) or personal interest in food will also find the book interesting as it provides a user-friendly account of the mechanisms of flavor and aroma which will provide new insights into their craft.

How Free Cationic Polymer Chains Promote Gene Transfection

by Yue Yanan

In this PhD thesis, Yue Yanan addresses a long-overlooked and critical question in the development of non-viral vectors for gene delivery. The author determines that those uncomplexed and cationic polymer chains free in the solution mixture of polymer and DNA facilitate and promote gene transfection. Furthermore, by using a combination of synthetic chemistry, polymer physics and molecular biology, Yue confirms that it is those cationic polymer chains free in the solution mixture, rather than those bound to DNA chains, that play a decisive role in intracellular trafficking. Instead of the previously proposed and widely accepted "proton sponge" model, the author's group propose a new hypothesis based on the results of several well-designed and decisive experiments. These results show that free polycationic chains with a length of more than ~10 nm are able to partially block the fusion between different endocytic vesicles, including the endocytic-vesicle-to-endolysosome pathway. This thesis is highly original and its results greatly deepen our understanding of polymer-mediated gene transfection. More importantly, it provides new insights into the rational design of next-generation superior polymeric gene-delivery vectors.

How Fuzzy Concepts Contribute to Machine Learning (Studies in Fuzziness and Soft Computing #416)

by Vicenç Torra Mahdi Eftekhari Adel Mehrpooya Farid Saberi-Movahed

This book introduces some contemporary approaches on the application of fuzzy and hesitant fuzzy sets in machine learning tasks such as classification, clustering and dimension reduction. Many situations arise in machine learning algorithms in which applying methods for uncertainty modeling and multi-criteria decision making can lead to a better understanding of algorithms behavior as well as achieving good performances. Specifically, the present book is a collection of novel viewpoints on how fuzzy and hesitant fuzzy concepts can be applied to data uncertainty modeling as well as being used to solve multi-criteria decision making challenges raised in machine learning problems. Using the multi-criteria decision making framework, the book shows how different algorithms, rather than human experts, are employed to determine membership degrees. The book is expected to bring closer the communities of pure mathematicians of fuzzy sets and data scientists.

How Glass Changed the World

by Seth C. Rasmussen

Glass production is thought to date to ~2500 BC and had found numerous uses by the height of the Roman Empire. Yet the modern view of glass-based chemical apparatus (beakers, flasks, stills, etc.) was quite limited due to a lack of glass durability under rapid temperature changes and chemical attack. This "brief" gives an overview of the history and chemistry of glass technology from its origins in antiquity to its dramatic expansion in the 13th century, concluding with its impact on society in general, particularly its effect on chemical practices.

How Green are Electric or Hydrogen-Powered Cars?

by Jesús Montoya Sánchez de Pablo María Miravalles López Antoine Bret

Have you ever wondered by how much CO2 emissions can be reduced by running cars electrically or with hydrogen as fuel? This Brief provides a quantitative answer to this question using the example of the combined road traffic in Spain. The authors calculate the resulting greenhouse gas (GHG) emissions for the production of hydrogen gas or the required electricity and installing and maintaining the necessary infrastructure. In this way, they can compare with the GHG emissions in the present situation of oil fueled cars. Using different scenarios, they obtain an assessment how much 'greener' the electric or hydrogen cars can get. The method described in this Brief is scalable and readily adaptable to other countries. It can thus be used for investigating sensible approaches and developing recommendations for a conversion. As expected, the results depend strongly on the production scenarios for hydrogen or electricity production. The wrong choice can even result in increased GHG emissions. A proper choice of the roadmap toward a more sustainable and greener future is of greatest importance - the results described in this Brief can serve as a valuable and useful guide on our way.

How I Learned to Understand the World: BBC RADIO 4 BOOK OF THE WEEK

by Hans Rosling

This is a book that contains very few numbers. Instead, it is about meeting people who have opened my eyes.It was facts that helped him explain how the world works. But it was curiosity and commitment that made the late Hans Rosling, author of worldwide bestseller Factfulness, the most popular researcher of our time.How I Learned to Understand the World is Hans Rosling's own story of how a young scientist learned became a revolutionary thinker, and takes us from the swelter of an emergency clinic in Mozambique, to the World Economic Forum at Davos. In collaboration with Swedish journalist Fanny Härgestam, Hans Rosling wrote his memoir with the same joy of storytelling that made a whole world listen when he spoke.

How I Learned to Understand the World: BBC RADIO 4 BOOK OF THE WEEK

by Hans Rosling

This is a book that contains very few numbers. Instead, it is about meeting people who have opened my eyes.It was facts that helped him explain how the world works. But it was curiosity and commitment that made the late Hans Rosling, author of worldwide bestseller Factfulness, the most popular researcher of our time.How I Learned to Understand the World is Hans Rosling's own story of how a young scientist learned became a revolutionary thinker, and takes us from the swelter of an emergency clinic in Mozambique, to the World Economic Forum at Davos. In collaboration with Swedish journalist Fanny Härgestam, Hans Rosling wrote his memoir with the same joy of storytelling that made a whole world listen when he spoke.(P) 2020 Hodder & Stoughton Ltd

How Infrastructure Works: Inside the Systems That Shape Our World

by Deb Chachra

NAMED A BEST BOOK OF 2023 BY PUBLISHERS WEEKLY"Revelatory, superbly written, and pulsing with wisdom and humanity, How Infrastructure Works is a masterpiece.&” —Ed Yong, author of An Immense WorldA new way of seeing the essential systems hidden inside our walls, under our streets, and all around us Infrastructure is a marvel, meeting our basic needs and enabling lives of astounding ease and productivity that would have been unimaginable just a century ago. It is the physical manifestation of our social contract—of our ability to work collectively for the public good—and it consists of the most complex and vast technological systems ever created by humans. A soaring bridge is an obvious infrastructural feat, but so are the mostly hidden reservoirs, transformers, sewers, cables, and pipes that deliver water, energy, and information to wherever we need it. When these systems work well, they hide in plain sight. Engineer and materials scientist Deb Chachra takes readers on a fascinating tour of these essential utilities, revealing how they work, what it takes to keep them running, just how much we rely on them—but also whom they work well for, and who pays the costs. Across the U.S. and elsewhere, these systems are suffering from systemic neglect and the effects of climate change, becoming unavoidably visible when they break down. Communities that are already marginalized often bear the brunt of these failures. But Chachra maps out a path for transforming and rebuilding our shared infrastructure to be not just functional but also equitable, resilient, and sustainable. The cost of not being able to rely on these systems is unthinkably high. We need to learn how to see them—and fix them, together—before it&’s too late.

How Innovation Works: And Why It Flourishes in Freedom

by Matt Ridley

Building on his national bestseller The Rational Optimist, Matt Ridley chronicles the history of innovation, and how we need to change our thinking on the subject.Innovation is the main event of the modern age, the reason we experience both dramatic improvements in our living standards and unsettling changes in our society. Forget short-term symptoms like Donald Trump and Brexit, it is innovation that will shape the twenty-first century. Yet innovation remains a mysterious process, poorly understood by policy makers and businessmen alike.Matt Ridley argues that we need to see innovation as an incremental, bottom-up, fortuitous process that happens as a direct result of the human habit of exchange, rather than an orderly, top-down process developing according to a plan. Innovation is crucially different from invention, because it is the turning of inventions into things of practical and affordable use to people. It speeds up in some sectors and slows down in others. It is always a collective, collaborative phenomenon, involving trial and error, not a matter of lonely genius. It happens mainly in just a few parts of the world at any one time. It still cannot be modeled properly by economists, but it can easily be discouraged by politicians. Far from there being too much innovation, we may be on the brink of an innovation famine.Ridley derives these and other lessons from the lively stories of scores of innovations, how they started and why they succeeded or failed. Some of the innovation stories he tells are about steam engines, jet engines, search engines, airships, coffee, potatoes, vaping, vaccines, cuisine, antibiotics, mosquito nets, turbines, propellers, fertilizer, zero, computers, dogs, farming, fire, genetic engineering, gene editing, container shipping, railways, cars, safety rules, wheeled suitcases, mobile phones, corrugated iron, powered flight, chlorinated water, toilets, vacuum cleaners, shale gas, the telegraph, radio, social media, block chain, the sharing economy, artificial intelligence, fake bomb detectors, phantom games consoles, fraudulent blood tests, hyperloop tubes, herbicides, copyright, and even life itself.

How Insurgencies End

by Martin C. Libicki Ben Connable

RAND studied 89 modern insurgency cases to test conventional understanding about how insurgencies end. Findings relevant to policymakers and analysts include that modern insurgencies last about ten years; withdrawal of state support cripples insurgencies; civil defense forces are useful for both sides; pseudodemocracies fare poorly against insurgents; and governments win more often in the long run.

How Knowledge Moves: Writing the Transnational History of Science and Technology

by John Krige

Knowledge matters, and states have a stake in managing its movement to protect a variety of local and national interests. The view that knowledge circulates by itself in a flat world, unimpeded by national boundaries, is a myth. The transnational movement of knowledge is a social accomplishment, requiring negotiation, accommodation, and adaptation to the specificities of local contexts. This volume of essays by historians of science and technology breaks the national framework in which histories are often written. Instead, How Knowledge Moves takes knowledge as its central object, with the goal of unraveling the relationships among people, ideas, and things that arise when they cross national borders. This specialized knowledge is located at multiple sites and moves across borders via a dazzling array of channels, embedded in heads and hands, in artifacts, and in texts. In the United States, it shapes policies for visas, export controls, and nuclear weapons proliferation; in Algeria, it enhances the production of oranges by colonial settlers; in Vietnam, it facilitates the exploitation of a river delta. In India it transforms modes of agricultural production. It implants American values in Latin America. By concentrating on the conditions that allow for knowledge movement, these essays explore travel and exchange in face-to-face encounters and show how border-crossings mobilize extensive bureaucratic technologies.

How Mechanics Shaped the Modern World: A Contextual Introduction to Concepts and Applications

by David H. Allen

This updated and augmented second edition covers the history of mechanics in such a way as to explain how this all-important discipline shaped our world. Like the first edition, Dr. Allen presents the material in an engaging, accessible manner, with many historic insights and thorough explanations of attending concepts. The text retains its coverage of classical mechanics, essentially Newtonian mechanics, and adds chapters on three additional topics that go well beyond classical mechanics: relativity, quantum/nanomechanics, and biomechanics.

How Much Energy Does Your Building Use? (Doshorts Ser.)

by Kerry Mashford Liz Reason

Why do award-winning "green" buildings so often have higher energy bills than ordinary buildings? Why do expensive refurbishments deliver outcomes that are far from the promises of improved sustainability? Why does your building have high running costs and still the occupants complain about being too cold or too hot and are otherwise dissatisfied?The failure of many countries to produce buildings that are comfortable with excellent energy performance is a scandal. Achieving low energy buildings does not involve learning rocket science: just some basic building physics, a clear language for talking meaningfully about energy-efficient outcomes with all those in the buildings cycle, and an outlook that casts a new low energy perspective on old problems. This book provides that common language. It outlines a path towards understanding what makes for a good quality low energy building, the stakeholders that need to be engaged, and encourages new ways of thinking about how to reduce energy use and costs.This book is for everyone in the buildings cycle, from CEOs of major construction companies to Sustainability, Energy, Environment, Facilities and Utilities managers in any company that aims to reduce energy use in a non-domestic building.

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