Aho/Ullman Foundations of Computer Science This book has been taken out of print by W. H. Freeman. You are welcome to use it if you like. We believed in 1992 it was the way to introduce theory in Computer Science, and we believe that today. --- Al Aho and Jeff Ullman Index The Book | Materials | Gradiance | Errata PDF's of the Book PrefaceTable of ContentsChapter 1 Computer Science: The Mechanization of Abstraction Chapter 2 Iteration, Induction, and Recursion Chapter 3 The Running Time of Programs Chapter 4 Combinatorics and Probability Chapter 5 The Tree Data Model Chapter 6 The List Data Model Chapter 7 The Set Data Model Chapter 8 The Relational Data Model Chapter 9 The Graph Data Model Chapter 10 Patterns, Automata, and Regular Expressions Chapter 11 Recursive Description of Patterns Chapter 12 Propositional Logic Chapter 13 Using Logic to Design Computer Components Chapter 14 Predicate Logic Index Supplementary Materials Gradiance Package Available Errata Sheet We are going to try to maintain errata.
In Egypt, Eos, Dawn Goddess, has Opened Her Gates; in the USA, Denial Overflows, & in Darfur, Denial Merges with the River Styx Eos, Goddess of the Dawn, opens the gates of the east prior to riding her chariot through the sky. Herbert Draper - Gates of Dawn (1900) It is clear that the vast majority of the citizens in the world are looking for a just world where distribution of education, health, jobs and wealth is much more equitable and where 'global common goods' are agreed and managed, such as sustainable and just climate agreements. However, the power is at this point still in the hands of rich minorities, an elite world class which interconnects banks, corporations, governments, corporate media and sometimes criminal networks. IPS Interview w/ SYLVIA BORREN, co-chair of GCAP Whatever happens in Egypt, there's an elephant in the room, and it's pink. In Egypt, Eos, Dawn Goddess, has Opened Her Gates; in the USA, Denial Overflows, & in Darfur, Denial Merges with the River Styx By Richard Power Now it is time for the presses to roll again ... Tell Old Pharaoh, Let My People Go Savor the moment.
An Overview of Cryptography As an aside, the AES selection process managed by NIST was very public. A similar project, the New European Schemes for Signatures, Integrity and Encryption (NESSIE), was designed as an independent project meant to augment the work of NIST by putting out an open call for new cryptographic primitives. NESSIE ran from about 2000-2003. While several new algorithms were found during the NESSIE process, no new stream cipher survived cryptanalysis. As a result, the ECRYPT Stream Cipher Project (eSTREAM) was created, which has approved a number of new stream ciphers for both software and hardware implementation. CAST-128/256: CAST-128, described in Request for Comments (RFC) 2144, is a DES-like substitution-permutation crypto algorithm, employing a 128-bit key operating on a 64-bit block. A digression: Who invented PKC? 3.3. Let me reiterate that hashes are one-way encryption. A digression on hash collisions.
Magnetic Toys Optical Illusions Magnetic Toys Kaleidoscopes Chemistry Toys Electronic Toys Astronomy Nitinol Solar Toys Puzzles Locks Candles Jokes and Tricks Optical Toys Maths Toys Music and Audio Toys Magic Tricks Spinning Tops Stirling Engines Mechanical Toys Pens and Pencils Mikro World Cards Books Aroma Lamps New Products Extra Shipping Shipping Information Click here for more information View Cart | Checkout Items: 0, Value: 0 What Is Intelligence, Anyway? What Is Intelligence, Anyway? By Isaac Asimov What is intelligence, anyway? When I was in the army, I received the kind of aptitude test that all soldiers took and, against a normal of 100, scored 160. (It didn't mean anything. All my life I've been registering scores like that, so that I have the complacent feeling that I'm highly intelligent, and I expect other people to think so too. Actually, though, don't such scores simply mean that I am very good at answering the type of academic questions that are considered worthy of answers by people who make up the intelligence tests - people with intellectual bents similar to mine? For instance, I had an auto-repair man once, who, on these intelligence tests, could not possibly have scored more than 80, by my estimate. Yet, when anything went wrong with my car I hastened to him with it, watched him anxiously as he explored its vitals, and listened to his pronouncements as though they were divine oracles - and he always fixed my car.
IFS Fractal in the Space Design Daily: The World's Simplest Mobile Phone | Technology on GOOD Writing for PSFK, Floyd Haynes recounts his reversal from iPhone fanboy to smart-phone abdicator. The combination of muffled conversations, dropped calls, and a creeping feeling that constant connectedness was complicating his life prompted a quest for simplification. That's precisely what he found in John's Phone, the world's simplest mobile phone. It's made by the Dutch design company John Doe Amsterdam. Here's a video of Haynes's first look at the phone. Wonderful.
50 Online Tools That Will Help You Boost Productivity and Earn More Money One of the great things about the web is the number of useful tools that can aid you in keeping track of all that you have to do and manage. More importantly, many of these tools can be used to save time, increase productivity, and earn more money. Perhaps the only downfall is the sheer number of tools that are available. It can be overwhelming. Thankfully, I’ve done most of the work for you. Below you’ll find a list of the absolute best online tools. You don’t need to use all of them. So without further adieu, here’s the list… Table Of Contents You can jump to any section by clicking the links below or just scroll down to view all of the online tools. Project Management Tools 1. MindMeister allows your team to be more innovative by providing a shared collaboration and brainstorming environment using the proven mind mapping technique. 2. Freedcamp promises to be a free project management tool without restrictions on how many users or projects you can manage. 3. 4. 5. 6. 7. Productivity Tools
Workflow Office Furniture by o4i Office Singularity So apparently there’s three different stages in the modern office work flow. I only thought there was one: Runnin’ Ragged! But lo! There’s three. And with this bit of furniture, the “Workflow,” you’ve got all three covered in one. Whats better than standing, sitting, and lying down? The 3 stages included in the modern office work flow: 1. I’ll have a sepia and orange one plz. Designer: o4i 10 Tips to Make Working From Home a Success Wise Bread Picks It's estimated that 10 to 15 million Americans work from home. Many people, including a great percentage of moms and dads, find the work-from-home opportunity the perfect fit for their lifestyle. But working from home is hard work, especially with kids in the picture. Whether you're contemplating a work-from-home opportunity or already heading to your in-house office each day, here are 10 tips to help make the business adventure a success. 1. Without family support, your at-home business won't survive. 2. Even if you can do your job sitting on the couch with laptop in hand, creating work space is important. 3. Establish a base schedule: A set chunk of hours, certain days of the week, etc. where you perform the bulk of your duties. But embrace the flexibility working from home allows. 4. Just because you're already home doesn't mean you don't deserve a break. 5. 6. Write a job description that highlights your duties and responsibilities, and track your goals. 7. 8. 9.
Living Cube The Living Cube by German designer Till Koenneker is a clever structure, combining all those elements we usually struggle to find space for in a tiny apartment. It houses a walk-in closet, ample media storage, and serves as a loft bed. Here is how designer describes it: “I moved into a apartment studio without storage room. Photography by Rob Lewis