Download or read book Screen Damage written by Michel Desmurget and published by John Wiley & Sons. This book was released on 2022-10-11 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: All forms of recreational digital consumption – whether on smartphones, tablets, game consoles or TVs – have skyrocketed in the younger generations. From the age of 2, children in the West clock up more than 2.5 hours of screen time a day; by the time they reach 13, it’s more than 7 hours a day. Added up over the first 18 years of life, this is the equivalent of almost 30 school years, or 15 years of full-time employment. Most media experts do not seem overly concerned about this situation: children are adaptable, they say, they are ‘digital natives’, their brains have changed and screens make them smarter. But other specialists – including some paediatricians, psychiatrists, teachers and speech therapists – dispute these claims, and many parents worry about the long-term consequences of their children’s intensive exposure to screens. Michel Desmurget, a leading neuroscientist, has carefully weighed up the scientific evidence concerning the impact of the digital activities of our children and adolescents, and his assessment does not make for happy reading: he shows that these activities have significant detrimental consequences in terms of the health, behaviour and intellectual abilities of young people, and strongly affect their academic outcomes. A wake-up call for anyone concerned about the long-term impacts of our children’s over-exposure to screens.
Download or read book Glow Kids written by Nicholas Kardaras and published by Macmillan. This book was released on 2016-08-09 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In Glow Kids, Dr. Nicholas Kardaras will examine how technology-- more specifically, age-inappropriate screen tech, with all of its glowing ubiquity-- has profoundly affected the brains of an entire generation. Brain imaging research is showing that stimulating glowing screens are as dopaminergic (dopamine activating) to the brain's pleasure center as sex. And a growing mountain of clinical research correlates screen tech with disorders like ADHD, addiction, anxiety, depression, increased aggression, and even psychosis. Most shocking of all, recent brain imaging studies conclusively show that excessive screen exposure can neurologically damage a young person's developing brain in the same way that cocaine addiction can"--
Download or read book NASA Technical Report written by United States. National Aeronautics and Space Administration and published by . This book was released on 1959 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Storm Data written by and published by . This book was released on 1997-03 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Veterinary Radiography written by Suzanne Easton, MSc, BSc and published by Elsevier Health Sciences. This book was released on 2006-03-03 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Radiography volume in a series of workbooks for students that provides an enjoyable, yet thorough means of revision. Mnemonics and cartoons assist in word association and memory recall - essential for examination success. Revolutionise your revision by using these workbooks! A variety of exercises and activities help readers review key concepts. The interactive approach provides a fun new way to study this sometimes difficult subject. Mnemonics, hints, tips, and key points help readers with memory and recall for exam success. Includes diagrams and radiographs that users can annotate to reinforce learning.
Download or read book Catalytic Naphtha Reforming Process written by Soni O Oyekan and published by CRC Press. This book was released on 2018-09-05 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the author’s decades of years of experience in oil refining, Catalytic Naphtha Reforming Process conveys essential information on key concepts, operations, and practices of catalytic naphtha reforming technologies and associated oil refining processes. The book reviews collective technical and operational advancements with respect to efficient use of catalysts and catalytic reformers in oil refining and incorporates key advancements from recent developments in catalytic reforming technologies and processes. High octane reformate gasoline blendstock production via the use of high performing continuous catalyst regenerative processes is emphasized for regulated, environmentally friendly gasoline. The benefits of timely, effective process unit monitoring are covered in this book. Some of the principal objectives of this book include the need to emphasize more proactive approaches in the planning, operations and maintenance of catalytic reforming units and oil refineries. A number of recommendations are provided for enhancing the operations, reliability, and productivity of catalytic reformers and oil refineries.
Download or read book Well Completion Design written by Jonathan Bellarby and published by Elsevier. This book was released on 2009-04-13 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completions are the conduit between hydrocarbon reservoirs and surface facilities. They are a fundamental part of any hydrocarbon field development project. The have to be designed for safely maximising the hydrocarbon recovery from the well and may have to last for many years under ever changing conditions. Issues include: connection with the reservoir rock, avoiding sand production, selecting the correct interval, pumps and other forms of artificial lift, safety and integrity, equipment selection and installation and future well interventions. - Course book based on course well completion design by TRACS International - Unique in its field: Coverage of offshore, subsea, and landbased completions in all of the major hydrocarbon basins of the world - Full colour
Download or read book Techniques of Water resources Investigations of the United States Geological Survey written by and published by . This book was released on 1989 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Applications In Management written by Ritendra Goel and published by New Age International. This book was released on 2003 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Book Is Designed As Per The Syllabus Of U.P. Technical University. It Also Covers The Syllabus Of Many Other Universities That Have Similar Course. Wide Range Of Topics Are Covered.Salient Features * Book Covers Most Of The Basics Of Computers That One Must Know. * Even A Layman In Computer Can Pick Up The Concepts Easily. * It Covers Introduction To Computers, Basics Of Hardware And Software, Introduction To Dos And Windows, Ms Office, Basics Of Network, Internet And E-Mail And Dbms Along With Some Part Of Application Of Information System.
Download or read book Application of Drilling Coring and Sampling Techniques to Test Holes and Wells written by Eugene Shuter and published by . This book was released on 1989 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Board of Contract Appeals Decisions written by United States. Armed Services Board of Contract Appeals and published by . This book was released on 1965 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The full texts of Armed Services and othr Boards of Contract Appeals decisions on contracts appeals.
Download or read book Biometric Based Physical and Cybersecurity Systems written by Mohammad S. Obaidat and published by Springer. This book was released on 2018-10-24 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest developments in biometrics technologies and reports on new approaches, methods, findings, and technologies developed or being developed by the research community and the industry. The book focuses on introducing fundamental principles and concepts of key enabling technologies for biometric systems applied for both physical and cyber security. The authors disseminate recent research and developing efforts in this area, investigate related trends and challenges, and present case studies and examples such as fingerprint, face, iris, retina, keystroke dynamics, and voice applications . The authors also investigate the advances and future outcomes in research and development in biometric security systems. The book is applicable to students, instructors, researchers, industry practitioners, and related government agencies staff. Each chapter is accompanied by a set of PowerPoint slides for use by instructors.
Download or read book Official Gazette of the United States Patent and Trademark Office written by United States. Patent and Trademark Office and published by . This book was released on 1991 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook Of Accelerator Physics And Engineering Third Edition written by Alexander Wu Chao and published by World Scientific. This book was released on 2023-02-02 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by internationally recognized authorities in the field, this expanded and updated new edition of the bestselling Handbook, containing many new articles, is aimed at the design and operation of modern particle accelerators. It is intended as a vade mecum for professional engineers and physicists engaged in these subjects. With a collection of more than 2000 equations, 300 illustrations and 500 graphs and tables, here one will find, in addition to common formulae of previous compilations, hard to find, specialized formulae, recipes and material data pooled from the lifetime experience of many of the world's most able practioners of the art and science of accelerators.The seven chapters include both theoretical and practical matters as well as an extensive glossary of accelerator types. Chapters on beam dynamics and electromagnetic and nuclear interactions deal with linear and nonlinear single particle and collective effects including spin motion, beam-environment, beam-beam, beam-electron, beam-ion and intrabeam interactions. The impedance concept and related calculations are dealt with at length as are the instabilities due to the various interactions mentioned. A chapter on operational considerations including discussions on the assessment and correction of orbit and optics errors, realtime feedbacks, generation of short photon pulses, bunch compression, phase-space exchange, tuning of normal and superconducting linacs, energy recovery linacs, free electron lasers, cryogenic vacuum systems, steady state microbuching, cooling, space-charge compensation, brightness of light sources, collider luminosity optimization and collision schemes, machine learning, multiple frequency rf systems, FEL seeding, ultrafast electron diffraction, and Gamma Factory. Chapters on mechanical and electrical considerations present material data and important aspects of component design including heat transfer and refrigeration. Hardware systems for particle sources, feedback systems, confinement, including undulators, and acceleration (both normal and superconducting) receive detailed treatment in a sub-systems chapter, beam measurement and apparatus being treated therein as well.A detailed name and subject index is provided together with reliable references to the literature where the most detailed information available on all subjects treated can be found.
Download or read book Beet Sugar Handbook written by Mosen Asadi and published by John Wiley & Sons. This book was released on 2006-06-23 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first all-in-one reference for the beet-sugar industry Beet-Sugar Handbook is a practical and concise reference for technologists, chemists, farmers, and research personnel involved with the beet-sugar industry. It covers: * Basics of beet-sugar technology * Sugarbeet farming * Sugarbeet processing * Laboratory methods of analysis The book also includes technologies that improve the operation and profitability of the beet-sugar factories, such as: * Juice-softening process * Molasses-softening process * Molasses-desugaring process * Refining cane-raw sugar in a beet-sugar factory The book ends with a review of the following: * Environmental concerns of a beet-sugar factory * Basics of science related to sugar technology * Related tables for use in calculations Written in a conversational, engaging style, the book is user friendly and practical in its presentation of relevant scientific and mathematical concepts for readers without a significant background in these areas. For ease of use, the book highlights important notes, defines technical terms, and presents units in both metric and British systems. Operating problem-solving related to all stations of sugarbeet processing, frequent practical examples, and given material/energy balances are other special features of this book.
Download or read book Working Windows written by Terry Meany and published by Rowman & Littlefield. This book was released on 2008-04-15 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This definitive book covers the operation, care, repair, and restoration of all kinds of wood windows, along with chapters on weather-stripping, repainting, and refinishing.
