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Posted: June 24th, 2009, 7:20pm CEST by sanraj
Entertaining Mathematical Puzzles
General Publishing Company, Ltd. | ISBN 0-486-25211-6 | ENGLISH | PDF | 125 PAGES | 2.50 MB
Introduction
In selecting material for this collection I have done my best to find puzzles that are unusual and entertaining, that call for only the most elementary knowledge of mathematics, but at the same time provide stimulating glimpses into higher levels of mathematical thinking. The puzzles (many of which appeared in my column "On the Light Side" that ran in Science World) have been grouped into sections, each dealing with a different area of mathematics. Brief comments at the beginning of each section suggest something of the nature and importance of the kind of mathematics one must use in tackling the puzzles of that section. In the answers, I have tried to go into as much detail as space permits in explaining how each problem is solved, and pointing out some of the inviting paths that wind away from the problems into lusher areas of the mathematical jungle. Perhaps in playing with these puzzles you will discover that mathematics is more delightful than you expected. Perhaps this will make you want to study the
subject in earnest, or less hesitant about taking up the study of a science for which a knowledge of advanced mathematics will eventually be required.
Surely no one today can doubt the enormous practical value of mathematics. Without its use as a tool, the discoveries and achievements of modem science would have been impossible. But many people do not realize that mathematicians actually enjoy mathematics. Take my word for it, there is as much satisfaction in knocking over an interesting problem with a well-aimed thought as there is in knocking over ten wooden pins with a well-aimed bowling ball. In one of L. Frank Baum's funniest fantasies, The Emerald City of Oz, Dorothy (together with the Wizard and her uncle and aunt) visit the city of Fuddlecumjig in the Quadling section of Oz. Its remarkable inhabitants, the Fuddles, are made of pieces of painted wood cleverly fitted together like three-dimensional jigsaw puzzles. As soon as an outsider approaches they scatter in a heap of disconnected pieces on the Hoor so that the visitor will have the pleasure of putting them together again. As Dorothy's party leaves the city, Aunt Em remarks:
"Those are certainly strange people, but I really can't see what use they are, at all." "Why, they amused us for several hours," replies the Wizard. "That is being of use to us, I'm sure." "I think they're more fun than playing solitaire or mumbletypeg," Uncle Henry adds. "For my part, I'm glad we visited the Fuddles."
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Posted: June 24th, 2009, 7:19pm CEST by sanraj
Positive Attitude For Unlimited Success
Wings Of Success | ENGLISH | PDF | 87 PAGES | 1.48 MB
Introduction
Positive Attitude: What Is It?
What does having a positive attitude then really boil down to, our thoughts, actions, patterns, habits, and behavior have us using, targeting and utilizing our energy and enthusiasm in a particular way. We think, act and do…If you are mainly positive, you will be focused on good things, happy thoughts, and successful outcomes, seeing the glass half-full to an extent. Negatively, you will be focusing on bad things, sad thoughts, unsuccessful outcomes and act and behave negatively too. Your goals and energy will not be focused and purposefully driven towards success, half-hearted at best. There is an undeniable link between personal performance, confidence and even health and our positive thoughts. Matching, triggering neuro-chemical and physical responses, increased mental alertness and release of physical energy, improved respiration and circulation, boosts our abilities. The reverse is true, triggering the fight or flight response and instinct when we are decisively negative. Which can lead to loss of
energy, creativity, motivation and lower selfesteem. You can effectively turn this habit of positive thinking into a power tool boosting not only your life, success and future, but also your health and wellbeing. There are numerous self-help books, products and even training courses that you can take to learn more about endorphins for example and how positive thoughts and can and motivate your day, towards more positive outcomes.
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Posted: June 24th, 2009, 7:18pm CEST by sanraj
The Nutritionist
Haworth | ISBN 0-203-88700-X | ENGLISH | PDF | 388 PAGES | 1.63 MB
Introduction
The seeming simplicity of our daily activities is greatly contrasted by the complexity of our true nature—quite a paradox, no doubt. It is simple in that, on the outside, the goals of our body may appear few. We internalize food, water, and oxygen while at the same time ridding ourselves of carbon dioxide and other waste materials. These operations support reproduction, growth, maintenance, and defense. Yet on the inside our body may seem very complex as various organs participate in a tremendous number of complicated processes intended to meet the simple goals previously mentioned. Nutrition is just one part of this paradoxical relationship. The objective of nutrition is simple: to supply our body with all of the necessary nutrients, and in appropriate quantities, to promote optimal health and function. However, in practice, nutrition is far from that simple. There seem to be too many nutrients, controversial nutrients, and different conditions, such as growth, pregnancy, and exercise, to allow nutrition to be a simple topic. Although we have long appreciated food, it has only been in the more recent years that we have really begun to understand the finer relationship between food and our body. Most nutrients have been identified within the last century or so and right now nutrition is one of the most prevalent areas of scientific research. This is to say that our understanding of nutrition is by no means complete. It continues to evolve in conjunction with the most current nutrition research. It seems that not a week goes by without hearing about yet another discovery in nutrition. It is hard to believe that just a few decades ago the basic four food groups were pretty much all the nutrition known by most people. Today nutrition deeply penetrates into many aspects of our lives, including preventative and treatment medicine, philosophy, exercise training, and weight management. Our diet has been linked to cardiovascular health, cancer, bowel function, moods, and brain activity, along with many other health domains. We no longer eat merely to satisfy hunger. Without doubt, nutrition has become a matter of great curiosity and/or concern for most of us today.
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Posted: June 24th, 2009, 7:17pm CEST by sanraj
Water - The Miracle Cure
ConX Publishing. | ISBN 0-9731336-8-6 | ENGLISH | PDF | 129 PAGES | MB
Introduction
What if you could get, for free, a miracle substance to alleviate symptoms of pain, depression, chronic fatigue, attention deficit disorder, stress, hypertension, back pain, peptic ulcer disease, migraines, arthritis pain, colitis, chronic constipation, kidney stones, heartburn, high cholesterol, morning sickness, and obesity? You can. This wonder elixir is something we often overlook, yet it is available in unlimited quantities in almost every household.
It is almost too simple to believe that even the water we get from our taps has the power to reduce and eliminate severe medical conditions. Yet in the next few pages you will see how water should be the treatment of choice for pain, inflammation, and autoimmune diseases. Instead of reaching for more drugs, that are increasingly expensive and often have negative side effects, we should drink more water instead. The water you use to treat your ailments doesn't have to be spring water or distilled; purified water from your household tap will do just as well.
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Posted: June 24th, 2009, 7:16pm CEST by sanraj
Healing Back Pain - The Mind-Body Connection
Warner Books | ISBN 0-7595-6193-1 | ENGLISH | PDF | 209 PAGES | 1.10 MB
Introduction
This book is the successor to Mind Over Back Pain, which was published in 1984. It described a medical disorder known as the Tension Myositis Syndrome (TMS), which I have had reason to believe is the major cause of the common syndromes of pain involving the neck, shoulders, back, buttocks and limbs. In the years since that first publication I have further developed and clarified my concepts about how to diagnose and treat TMS, hence the necessity for this book. Over the years the increasing incidence of these pain syndromes has created a public health problem of impressive proportions. One continues to see the statistic that somewhere around 80 percent of the population have a history of one of these painful conditions. An article in Forbesmagazine in August 1986 reported that $56 billion are spent annually to deal with the consequences of this ubiquitous medical disorder. It is the first cause of worker absenteeism in this country and ranks second behind respiratory infections as a reason for a doctor visit. All this has happened in the past thirty years. Why? After a few million years of evolution, has the American back suddenly become incompetent? Why are so many people prone to back injury? And why has the medical profession proven so helpless to stem the epidemic? It is this book?s purpose to answer those and many other questions about this widespread problem. The thesis will be advanced that, like all epidemics, this one is the result of medicine?s failure to recognize the nature of the disease, that is, to make an accurate diagnosis. The plague ravaged the world because no one knew anything about bacteriology or epidemiology at the time. It may be hard to believe that highly sophisticated twentieth-century medicine cannot properly identify the cause of something so simple and common as these pain disorders but physicians and medical researchers are, after all, still human and, therefore, not all-knowing and, most important, subject to the enduring weakness of bias. The pertinent bias here is that these
common pain syndromes must be the result of structural abnormalities of the spine or chemically or mechanically induced deficiencies of muscle. Of equal importance is another bias held by conventional medicine that emotions do not induce physiologic change. Experience with TMS contradicts both biases. The disorder is a benign (though painful) physiologic aberration of soft tissue (not the spine), and it is caused by an emotional process. I first appreciated the magnitude of this problem in 1965 when I joined the staff of what is now known as the Howard A. Rusk Institute of Rehabilitation Medicine at New York University Medical Center as director of outpatient services. It was my first introduction to large numbers of patients with neck, shoulder, back and buttock pain. Conventional medical training had taught me that these pains were primarily due to a variety of structural abnormalities of the spine, most commonly arthritic and disc disorders, or to a vague group of muscle conditions attributed to poor
posture, underexercise, overexertion and the like. Pain in the legs or arms was presumed due to compression (pinching) of nerves. However, it was not at all clear how these abnormalities actually produced the pain.
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Posted: June 24th, 2009, 7:15pm CEST by sanraj
Emergency Echocardiography
Springer-Verlag London Limited | ISBN 978-1-84882-335-8 | ENGLISH | PDF | 194 PAGES | 3.40 MB
Introduction
The idea of writing this book arose from frequent encounters with cardiologists in training and intensivist colleagues who highlighted the contribution of echocardiographic studies to the evaluation of difficult cases. In this, our experience only mirrored the growing role of echocardiography in the immediate management of hemodynamically unstable or acutely ill patients, as increasingly acknowledged in the literature.1–3
Echocardiography is the most versatile cardiac imaging technology readily available today at the patient’s bedside. Its superb diagnostic input relates to the ability to identify any hemodynamic condition and cardiac pathology that implies a morphologic and/ or a flow pattern change. Impressive technological advances over the last half century (Table I.1) and the advent of small, portable, and yet powerful echocardiographic machines pushed this technique in the frontline of diagnostic strategies when dealing with critically ill patients. Indeed, we are witnessing a change of medical practice, whereby, the management of hemodynamically unstable patients relies less on invasive data and increasingly more on the noninvasive assessment immediately obtainable with echocardiography.
It is the aim of this book to be a step-by-step, how- and whatto- do, easy to use guide for the benefit of cardiology and intensive care doctors and sonographers faced with critically ill patients for whom major therapeutic decisions could depend on the information provided by a timely and accurate echocardiographic examination. It tries to address what was perceived to be the practical needs of cardiology trainees and of intensivists faced with the increased use of echocardiography in an acute care setting. Because of the intended dual audience of this book, both pure “cardiological” topics such as aortic pathology, valvular emergencies, mechanical complications of myocardial infarction, or tamponade and more “intensive care” or “mixed” situations such as pulmonary embolism, resuscitation, sepsis, and the need for filling status assessment are covered.
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Posted: June 24th, 2009, 7:13pm CEST by sanraj
Anatomy of a Robot
The McGraw-Hill Companies, Inc. | ISBN 0-07-141657-9 | English | PDF | 321 Pages | 4.40 MB
Introduction
The boundless energy of youth often must give way to the laws of physics. All too often I’ve seen bright ideas flounder for a lack of fundamental knowledge. If this book can foster the development of the art, if it can encourage and educate the robotic community, if it can provide the missing ingredients—the secret sauce—then I did my job right. If you have a sense that a robot is more than wires and wheels, then this book is for you. Math rules physics, and physics rules robots. This book sheds light on the math and physics behind a robot design, and does so in an accessible way. The text was written for all ages, from high school through college and beyond. The math used in the book includes algebra, calculus, and differential equations. For readers unacquainted with these subjects, I made sure the text “returns to Earth” often. Nobody should be left behind. The laws of physics and math are evident in everyday life, and several examples are given in this book. Throughout the history of science and technology, the path to great discoveries has almost always started with the observation of simple events. Newton’s apple, Einstein’s empty room in space, and Shannon’s word games are clear examples. Proceeding from an intuitive, personal understanding of the basic laws of physics and math, you can take your understanding further. Using this knowledge, you can predict the behavior of your robot in advance. As problems crop up, you’ll have the basic knowledge to move effectively toward solutions. Throughout the book, I’ve also thrown in experience gained from 32 years of engineering design. I can’t be there when you build your robot, but I can put tools in your belt and pass on such wisdom as we both can sit still for. Originally, I started this project for the fame, fortune, and groupies. As the chapters rolled out, I got my true rewards. I relearned the basic technologies to better explain them. I dug into the larger questions lurking behind the equations and technology. And as the book developed, I found an outlet f r other thoughts I’ve had for quite some time. I hope my philosophical asides prove entertaining.
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Posted: June 24th, 2009, 7:12pm CEST by sanraj
Perfect Eyes - 30 Days To Better Sight
English | PDF | 124 Pages | 2.59 MB
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Posted: June 24th, 2009, 7:11pm CEST by sanraj
Now You Know - The Book Of Answers
English | PDF | 161 Pages | 2.38 MB
Introduction
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Posted: June 24th, 2009, 7:10pm CEST by sanraj
Fairy Tales - A New History 2009
State University of New York Press, | ISBN 978-1-4384-2523-8 | English | PDF | 164 Pages | 1.11 MB
Introduction
Most traditional histories of fairy tales begin with an unlettered country folk that invents fairy tales and then passes them along by word of mouth from generation to generation. Somewhat less frequently, fairy tales have been presented as disintegrations of ancient myth, as the remains of paleolithic beliefs, as fictionalized remnants of elementary planetary observations, or as evidence of universal archetypes. Such explanations have resulted in a sense that fairy tales’ origins are elusive, a sense of elusiveness that has shaped grand narratives of the genre as well as references to fairy tales in books about history, literature (including children’s literature), psychology, and folklore. It has been said so often that the folk invented and disseminated fairy tales that this assumption has become an unquestioned proposition. It may therefore surprise readers that folk invention and transmission of fairy tales has no basis in verifiable fact. Literary analysis undermines it, literary history rejects it,
social history repudiates it, and publishing history (whether of manuscripts or of books) contradicts it.
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Posted: June 24th, 2009, 7:09pm CEST by sanraj
How a Scientist Changed the Way We Think
Oxford University Press | ISBN 0–19–929116–0 | English | PDF | 298 Pages | 2.65 MB
Introduction
In 1976, a young Oxford biologist published a book called The Selfish Gene. To Richard Dawkins’ own surprise and sometimes alarm, it became widely discussed, often misunderstood, and highly influential. The Selfish Gene is now well established as a classic exposition of evolutionary ideas for academic and lay readers alike. Its author, propelled to fame, went on to display the range and depth of his analytical skills and literary abilities in a string of best-sellers: The Extended Phenotype (intended primarily for fellow biologists), The Blind Watchmaker, River Out of Eden, Climbing Mount Improbable, Unweaving the Rainbow, and The Ancestor’s Tale. A collection of his essays was published as A Devil’s Chaplain. Increasingly involved in public debate on science and rationalism, Dawkins has become a familiar figure in the media, and a leading champion of atheism. To find professional scientists with a similar public profile on non-scientific issues, one has to return to the days of J. B. S. Haldane and before him T. H. Huxley in the UK, and perhaps Einstein in the USA. In 1995, Dr Charles Simonyi endowed a chair for the Public Understanding of Science at Oxford University that enabled Dawkins, as the first holder, to concentrate on his writing. This collection of essays considers the range of Dawkins’ influence as scientist, writer, and public figure. Inevitably, though, his seminal work, The Selfish Gene, takes pride of place among his achievements and thus forms the primary focus of this volume. The Selfish Gene reached so many audiences that one person is unlikely to know of them all. The essays of the first few sections illustrate the range of the book’s influence, with distinguished authors from many fields explaining how its ideas have affected them personally and professionally.
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Posted: June 20th, 2009, 8:35pm CEST by sanraj
Elementary Theory of Numbers
General Publishing Company, Ltd. | ISBN 0-486-66348-5 | ENGLISH | PDF | 136 PAGES | 7.32 MB
Introduction
1-1 What is number theory? In number theory we are concerned with properties of certain of the integers (whole numbers)
... , -3, -2, -1,0, 1, 2, 3, ... ,
or sometimes with those properties of real or complex numbers which depend rather directly on the integers. It might be thought that there is little more that can be said about such simple mathematical objects than what has already been said in elementary arithmetic, but if you stop to think for a moment, you will realize that heretofore integers have not been considered as interesting objects in their own right, but simply as useful carriers of information. After totaling a grocery bill, you are interested in the amount of money involved, and not in the number representing that amount of money. In considering sin 310 , you think either of an angular opening of a certain size, and the ratios of some lengths related to that angle, or of a certain position in a table of trigonometric functions, but not of any interesting properties that the number 31 might possess.
The attitude which will govern the treatment of integers in this text is perhaps best exemplified by a story told by G. H. Hardy, an eminent British number theorist who died in 1947. Hardy had a young protege, an Indian named Srinivasa Ramanujan, who had such a truly remarkable insight into hidden arithmetical relationships that, although he was almost uneducated mathematically, he did a great amount of first-rate original research in mathematics. Ramanujan was ill in a hospital in England, and Hardy went to visit him. When he arrived, he idly remarked that the taxi in which he had ridden had the license number 1729, which, he said, seemed to him a rather uninteresting number. Ramanujan immediately replied that, on the contrary, 1729 was singularly interesting, being the smallest positive integer expressible as a sum of two positive cubes in two different ways, namely 1729 = 103 + 93 = 123 + 13 ! It should not be inferred that one needs to know all such little facts to understand number theory, or that one
needs to be a lightning calculator; we simply wished to make the point that the question of what the smallest integer is which can be represented as a sum of cubes in two ways is of interest to a number theorist" It is interesting not so much for its own sake (after all, anyone could find the answer after a few minutes of unimaginative computation), but because it raises all sorts of further....
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Posted: June 20th, 2009, 8:34pm CEST by sanraj
Healthy Carb Cookbook For Dummies
Wiley Publishing, Inc. | ISBN-10: 0-7645-8476-6 | ENGLISH | PDF | 394 PAGES | 7.60 MB
Introduction
Are you hankering for some new horizons for cooking low-carb? Well, you’ve come to the right place. This book is fun, and I’ve developed and de-carbed some pretty awesome recipes for you to incorporate into your daily low-carb lifestyle whether you’re cooking for one, two, or an entire family. Lowcarb never tasted so good!
Regardless of the meal or food you have in mind, I think you’ll find a recipe that hits the spot here. From breakfast to soup, salads, sides, and main courses, I have you covered with these recipes, which are all about variety, great flavors, and healthy meals that don’t take forever to prepare. But it only gets better from there: I also include recipes for desserts (including some sweet surprises), fresh wraps, and snacks. I give you slow cooker recipes so that your low-carb meal is ready for you when you walk through the door, and I provide ideas for dishes to cook in a hurry (on days when you haven’t used your slow cooker!). And did I mention that there are veggies galore that are great for your health and will please your tummy, too? I hope you enjoy preparing these recipes as much as I have enjoyed putting together this book just for you. A majority of the recipes contain less than 10 grams of net carbs per serving.
About This Book
So what’s this book all about? It’s a mix of low-carb lessons that I’ve learned the hard way along my low-carb road, plus a ton of recipes that will satisfy your comfort-food cravings and your low-carb sweet tooth — a mix of comfort-food cooking sprinkled with my California-cuisine influences and a heavy serving of low-carb variety and healthy eating. The simple cook in me likes to get things on the table in a very timely manner and you’ll see that influence in the recipes in this book.
I grew up in a small Midwestern farming community on good, old-fashioned comfort food, and that’s what I learned to cook — three squares a day and plenty of desserts. Then, about 20 years ago, I moved to California, and my entire eating lifestyle changed. Even though I’d grown up eating veggies fresh from the garden and canning every year, the word fresh took on a whole new meaning for me when I was introduced to California cooking. Grilling became a year-round sport. Fruits and vegetables became even more prominent. And fish — even though I’d caught and cooked my fair share of freshwater fish in the Midwest, being able to walk down to the dock and buy seafood right off the boats was a treat beyond measure. (And let’s not forget exercise: I became a runner and ran the beach almost every day. I was one healthy California girl.)
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Posted: June 20th, 2009, 8:32pm CEST by sanraj
Shut Up and Listen - The Truth about How to Communicate at Work
Kogan Page Limited | ISBN 0 7494 4024 4 | ENGLISH | PDF | 186 PAGES | 5.32 MB
Introduction
The truth about… how this book works
‘It seems that if you have an organization with more than about seven people then lines of communication can become extended and messages can become confused.’
Michael Broadbent – Director of Group Corporate Affairs,
HSBC Holdings plc
We are much better communicators when we know more about ourselves, think about how and what we communicate and act according to the changes in our circumstance and environment. These are the principles this book is based on. So, there are three main sections, starting with a short course in self-awareness so that you can find out more about the type of communicator (and person) you are, which is important if you’re going to understand better how your various ‘audiences’ see you. The main part of the book (the second section) is all about ‘how to…’ Lots of business books talk a lot about strategy (the plan), but leave you feeling hungry for tactics (the day-to-day things you have to do to implement it). Here, we think you know your organization’s plan better than we do, so all we’re trying to do is give you advice on the best way to put it into practice. There are five main subsections within ‘how to…’ looking at reading, writing, listening, talking and feeling, where you’ll find tips on everything from how
to persuade your boss to give you a company car, through to the best use of PowerPoint in a formal presentation.
We’re grateful to the experts who contributed to this book; they all did so, giving their own time and experience freely. Lots of the practical stuff comes from them and we’ve added our own case studies and stories that we’ve collected over our own careers in business and education.
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Posted: June 20th, 2009, 8:31pm CEST by sanraj
Tissues and Skin
Infobase Publishing | ISBN-10: 0-7910-7708-X | ENGLISH | PDF | 155 PAGES | 11.02 MB
Introduction
The human body is an incredibly complex and amazing structure. At best, it is a source of strength, beauty, and wonder. We can compare the healthy body to a well-designed machine whose parts work smoothly together. We can also compare it to a symphony orchestra in which each instrument has a different part to play. When all of the musicians play together, they produce beautiful music. From a purely physical standpoint, our bodies are made mainly of water.We are also made of many minerals, including calcium, phosphorous, potassium, sulfur, sodium, chlorine, magnesium, and iron. In order of size, the elements of the body are organized into cells, tissues, and organs. Related organs are combined into systems, including the musculoskeletal, cardiovascular, nervous, respiratory, gastrointestinal, endocrine, and reproductive systems. Our cells and tissues are constantly wearing out and being replaced without our even knowing it. In fact, much of the time, we take the body for granted. When it is working properly,
we tend to ignore it. Although the heart beats about 100,000 times per day and we breathe more than 10 million times per year, we do not normally think about these things. When something goes wrong, however ,our bodies tell us through pain and other symptoms. In fact, pain is a very effective alarm system that lets us know the body needs attention. If the pain does not go away, we may need to see a doctor. Even without medical help, the body has an amazing ability to heal itself. If we cut ourselves, the blood clotting system works to seal the cut right away, and the immune defense system sends out special blood cells that are programmed to heal the area.
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Posted: June 20th, 2009, 8:30pm CEST by sanraj
Upgrading And Repairing Laptops, 2nd Edition
Que | ISBN-10: 0-7897-3376-5 | ENGLISH | CHM | 912 PAGES | 9.11 MB
Introduction
Welcome to Upgrading and Repairing Laptops, the only book of its kind on the market!
Laptop computers are the largest growing part of the computer industry, with sales that continue to outpace desktop systems. For those in the industry, there has never been a better reason to get into upgrading and repairing laptops, because not only are they selling better than ever, but their higher prices allow you to charge more for services rendered.
But aren't laptops proprietary, which means they cannot easily be upgraded or repaired? Many people are familiar with the fact that desktop PCs normally use industry-standard components, which allow cost-effective upgrades and repairs to be performed. In fact, this philosophy is the basis for my best-selling book Upgrading and Repairing PCs, currently available in a 16th edition, with the 17th edition currently in the works. However, what many people don't know is that laptop and notebook computers have evolved from being mostly proprietary to using larger and larger numbers of industry-standard components. This means, in plain English, that laptop and notebook computers are more upgradeable and repairable than ever before. Being a long-time user of portable computers myself, I thought the time was finally right to explore this subject in more depth, resulting in this book.
In this book, you will learn about all the components that make up a modern laptop or notebook computer, which components are based on industry standards and which are proprietary, and which components can easily be upgraded or replaced. As most of you know, laptops are more expensive than desktops, so whereas desktop computers are becoming more and more of a commodity, laptops are still somewhat exclusive. They are more difficult to work on, and the components are smaller and more expensive. All of this contributes to upgrades and repairs that are more expensive overall.
You can look at this book two ways: From the perspective of a laptop user, knowing how to upgrade and repair your own system can save you a bundle of money! Using the information in this book, you can effectively troubleshoot a problem; isolate the defective component; obtain a replacement; and finally perform the physical interchange of parts, the actual upgrade, or repair. This capability is useful not only for older systems, where the cost of service might exceed the value of the system, but also with newer laptops, which can be easily upgraded with newer technology such as wireless networking, faster USB or FireWire ports, more memory, larger hard disks, and even faster processors.
From the perspective of a computer technician or support person working in the industry, knowing how to upgrade and repair laptop computers gives you a significant edge over others in the industry who are afraid to open laptop systems. They can be daunting. Many of the laptops on the market today are held together by upwards of 100 screws, often consisting of several different types! They also often include many intricately assembled plastic parts that can easily break or be damaged if you don't take them apart properly. The benefit is that as a repair technician, you can charge more for laptop service and repair, which gives you another edge over other technicians who can work only on commodity-level desktop systems.
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Posted: June 20th, 2009, 8:27pm CEST by sanraj
Nutrition and Metabolism 2009
Humana Press | ISBN: 978-1-60327-452-4 | ENGLISH | PDF | 420 PAGES | 5.02 MB
Introduction
Inappropriate nutrition, increased calorie intake, and lack of exercise usually lead to obesity and the metabolic syndrome, which, in turn, are responsible for several chronic diseases that affect every aspect of a person s life. In addition to prevention and medical treatment, education is the single most important tool for their management. Education is also of major importance in raising public health awareness since it can hopefully help curb the global epidemic of obesity, diabetes, and other disease states associated with the metabolic syndrome.
Following is a list of government agencies and nongovernmental organizations that provide information and resources related to nutrition, obesity, and diabetes.
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Posted: June 20th, 2009, 8:25pm CEST by sanraj
Network Processors - Architecture, Programming, and Implementation
Elsevier Inc. | ISBN 978-0-12-370891-5 | ENGLISH | PDF | 737 PAGES | 10.34 MB
Introduction
Network processors (NPs) are chips—programmable devices that can process network packets (up to hundreds of millions of them per second), at wire-speeds of multi-Gbps. Their ability to perform complex and fl exible processing on each packet, as well as the fact that they can be programmed and reprogrammed as required, make them a perfect and easy solution for network systems vendors developing packet processing equipment.
Network processors are about a decade old now and they have become a fundamental and critical component in many high-end network systems and demanding network processing environments.
This chapter introduces this relatively new processing paradigm, and provide a high-level perspective of what NPs are, where to use them and why, and conclude with a brief description of the contents of the rest of the book.
NETWORK PROCESSORS ECOSYSTEM
Telecommunications and data networks have become essential to everything that we do, to our well-being and to all of our requirements. The prevalence of Internet technology, cable TV (CATV), satellite broadcasting, as well as fi xed and cellular mobile telephony, tie many and expanding services to a very large population that is growing exponentially. The increasing speed of the communication links has triggered a wide range of high-speed networks, followed by an increasingly broad spectrum of services and applications.
We are witnessing this dramatic growth in communication networks and services; just think of the changes that networks and services have undergone in the past 10 years in the areas of mobile, video, Internet, information availability, TV, automation, multimedia, entertainment, online services, shopping, and multiplayer games. You can safely assume that an equivalent jump in technology and services will happen again in the next 5 years or so.
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Posted: June 20th, 2009, 8:24pm CEST by sanraj
IQ and Aptitude Tests
Kogan Page Limited | ISBN-10 0 7494 4931 4 | English | PDF | 192 Pages | 5.12 MB |
Introduction
An aptitude test is, generally, any test designed to measure potential for achievement. The word aptitude is sometimes misused to mean ‘ability’ or ‘achievement’; however, there is a subtle difference between the three words aptitude, ability and achievement, which can be distinguished as follows:
• aptitude – how quickly or easily you will be able to learn in the future;
• ability – what you are able to demonstrate in the present;
• achievement – what you have accomplished in the past.
There are nine different types of aptitude, which may be summarized as follows:
• General learning: learning and understanding, reasoning and making judgements. Example: how well we achieve at school.
• Verbal aptitude: general lexical skills – understanding words and using them effectively.
• Numerical aptitude: general mathematical skills – working with numbers quickly and accurately.
• Spatial aptitude: understanding geometric forms, and the understanding and identification of patterns and their
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