Despite all that has been written about John James Audubon and his work, one aspect had been overlooked, until now... In 1838, as John James Audubon's monumental creation, Birds of America, was nearing completion, he requested his engraver, Robert Havell, produce 13 extra, unique prints. Havell was instructed to combine images from two separate plates into a single print, commonly known as a "Composite Plate". Only two full sets, along with a handful of individual prints, of these rare prints exist today and are rarely if ever seen by the public. In this book the authors, for the first time, provide an analysis as to how and why these plates were made, while providing illustrations depicting all 13 of the Composite Plates.
Oracle system performance inefficiencies often go undetected for months or even years--even under intense scrutiny--because traditional Oracle performance analysis methods and tools are fundamentally flawed. They're unreliable and inefficient.Oracle DBAs and developers are all too familiar with the outlay of time and resources, blown budgets, missed deadlines, and marginally effective performance fiddling that is commonplace with traditional methods of Oracle performance tuning. In this crucial book, Cary Millsap, former VP of Oracle's System Performance Group, clearly and concisely explains how to use Oracle's response time statistics to diagnose and repair performance problems. Cary also shows how "queueing theory" can be applied to response time statistics to predict the impact of upgrades and other system changes.Optimizing Oracle Performance eliminates the time-consuming, trial-and-error guesswork inherent in most conventional approaches to tuning. You can determine exactly where a system's performance problem is, and with equal importance, where it is not, in just a few minutes--even if the problem is several years old.Optimizing Oracle Performance cuts a path through the complexity of current tuning methods, and streamlines an approach that focuses on optimization techniques that any DBA can use quickly and successfully to make noticeable--even dramatic--improvements.For example, the one thing database users care most about is response time. Naturally, DBAs focus much of their time and effort towards improving response time. But it is entirely too easy to spend hundreds of hours to improve important system metrics such as hit ratios, average latencies, and wait times, only to find users are unable to perceive the difference. And an expensive hardware upgrade may not help either.It doesn't have to be that way. Technological advances have added impact, efficiency, measurability, predictive capacity, reliability, speed, and practicality to the science of Oracle performance optimization. Optimizing Oracle Performance shows you how to slash the frustration and expense associated with unraveling the true root cause of any type of performance problem, and reliably predict future performance.The price of this essential book will be paid back in hours saved the first time its methods are used.
All they wanted was a little adventure. What they got was the adventure of a lifetime. School is out for the summer and Jack, Ben, and Jeb can't wait to go exploring. Packing their knapsacks and saddling their horses, the trio sets out. But when they stumble across a hidden cave, they also discover the remains of an old Spanish soldier. And a valuable treasure they never could have imagined! But soon they are being followed by a stranger who wants the treasure. In the chase, the brothers end up trapped in an underground river bed, fighting for their lives. They must find their way out before they perish like the Spanish soldier. The boys have trusted the Lord to help them in the past, but will they trust Him now? Join Jack, Ben, and Jeb as they fight for their lives and learn to trust God in Tahosa Treasure!
From the inventor of the PalmPilot comes a new and compelling theory of intelligence, brain function, and the future of intelligent machines Jeff Hawkins, the man who created the PalmPilot, Treo smart phone, and other handheld devices, has reshaped our relationship to computers. Now he stands ready to revolutionize both neuroscience and computing in one stroke, with a new understanding of intelligence itself. Hawkins develops a powerful theory of how the human brain works, explaining why computers are not intelligent and how, based on this new theory, we can finally build intelligent machines. The brain is not a computer, but a memory system that stores experiences in a way that reflects the true structure of the world, remembering sequences of events and their nested relationships and making predictions based on those memories. It is this memory-prediction system that forms the basis of intelligence, perception, creativity, and even consciousness. In an engaging style that will captivate audiences from the merely curious to the professional scientist, Hawkins shows how a clear understanding of how the brain works will make it possible for us to build intelligent machines, in silicon, that will exceed our human ability in surprising ways. Written with acclaimed science writer Sandra Blakeslee, On Intelligence promises to completely transfigure the possibilities of the technology age. It is a landmark book in its scope and clarity.
Fasten your seatbelts as you take a hilarious and shocking journey through the minds of teenagers. Learn their views of history, geography, politics, and relationships among other things. Jeff Necessary places you front row and center for this amazing journey. You will laugh. You might cry. You might even wonder, how is this possible? The quotes in this book are hilarious. I hope nobody finds out which one is mine (Destiny Gorum, student). This is such a great book. It highlights a teenagers insight on the world through their eyes. This is a must-read, and you will not be able to put this book down. This book is just plain fun, coupled with high school students view of life. Training young minds is a tough job (Jessica Greene, guidance counselor, North Myrtle Beach High School). As a teacher, assistant principal, and principal for twenty plus years, I can easily relate to the student statements and questions contained in this book. Currently, as director of human resources, I can envision requiring all new teachers to read both the They Said What? books. Within these pages, Jeff Necessary provides a front row seat to the shocking reality of the modern classroom. Although these books will generate much laughter, I feel it imperative that new teachers know exactly what to expect when they enter their classrooms. Providing professional responses to the types of statements and questions in this book can sometimes be challenging. Thank you, Mr. Necesssary. I look forward to more books in the future (Jonathan D. Russ, director of human resources, Fredericksburg, Virginia, City Public Schools).
A heartfelt evocation of a singular event: the passing of a train at night across a snowy midwestern landscape, as observed by a boy spending his first night at his grandparents’ farmhouse." --Kirkus Reviews, pointer
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