Brains flush toxic waste in sleep, including Alzheimer's-linked protein, study of mice finds Scientists say this nightly self-clean by the brain provides a compelling biological reason for the restorative power of sleep. “Sleep puts the brain in another state where we clean out all the byproducts of activity during the daytime,” said study author and University of Rochester neurosurgeon Maiken Nedergaard. Those byproducts include beta-amyloid protein, clumps of which form plaques found in the brains of Alzheimer’s patients. Staying up all night could prevent the brain from getting rid of these toxins as efficiently, and explain why sleep deprivation has such strong and immediate consequences. Although as essential and universal to the animal kingdom as air and water, sleep is a riddle that has baffled scientists and philosophers for centuries. One line of thinking was that sleep helps animals to conserve energy by forcing a period of rest. Another puzzle involves why different animals require different amounts of sleep per night.
30 Useful (and Unknown) Web Apps You Need to Bookmark - Page 6 We'll wrap up this list with 5 web apps that aren't exactly unknown, but are so awesome they still deserve to be included: Gmail As far as web apps go, it’s hard to get more famous than Gmail, the favorite webmail client of the technologically in-the-know. Meebo If you’ve ever used omni-IM service Digsby, you know that its greatest feature is the ability to log in to all your IM accounts from any computer with Digsby installed. Pandora No list of webapps is complete without everyone's favorite internet radio service, Pandora. Remember The Milk Remember The Milk is an online to-do list app, with a remarkably convenient interface. Zoho Use Google docs much?
Great Books Index - List of Titles An Index to Online Great Books in English Translation To obtain an index of an author's works, including any known online editions of each work, and online articles about that author, select the author's name. To obtain an index of online editions of a particular work, select the name of that work. Then you will be able to scroll up and down to see other works by that author and articles about the author. Authors are listed here in order of their birthdates (insofar as known). To obtain an alphabetical listing of authors, go to the Author Index . The Bible -- Homer -- Aeschylus -- Sophocles -- Euripides -- Herodotus -- Thucydides -- Hippocrates -- Aristophanes -- Plato -- Aristotle -- Euclid -- Archimedes -- Apollonius -- Lucretius -- Virgil -- Tacitus -- Epictetus -- Nicomachus -- Plutarch -- Ptolemy -- Marcus Aurelius -- Galen -- Plotinus -- St Augustine -- The Quran -- St Thomas Aquinas -- Dante -- Chaucer -- Erasmus -- Machiavelli -- Copernicus -- Rabelais -- John Calvin -- Montaigne -- William Gilbert -- Cervantes -- F.
Great Poems & Greatest Books of All Time & Life-Changing Arts - StumbleUpon A selection of great poems from centuries of brillant authors and poets. Whether you are new to the world of poetry and wish to savor it, or a well-versed poetry connoisseur, either way you will probably enjoy the classics of world poetry. The poems are sorted by vote. To vote for a poem, click on the left of it. You can read and browse the poems by clicking on their title. Voting is possible once per day. Votes PoemAuthor IfRudyard Kipling EchoChristina Georgina Rossetti If you think the best poem of all times is not even on this list, by all means, let us know which poem it is and why you think it should be added. Get inspired.. inspire others.. Back to Greatest Books of All Time
Want to Remember Everything You'll Ever Learn? Surrender to This Algorithm Instructables - Make, How To, and DIY Arabian Nights - Index This is an extract of one of the earliest translations of the "Arabian Nights" into English, made by Sir Richard Francis Burton. I got the "flat" ASCII text from a gopher server that has been unavailable for some years now. I have no idea who scanned/typed the text. This extract is not nearly complete. The "arabian nighs" form a huge text corpus, and in translating them, Burton performed a gargantuan work. In 1996, I HTML'ed the text and split it up to make it better readable. Before diving into the universe of the Nights, you should take heed of this Warning! Intro Story The Tale Of The Bull And The Ass The Fisherman And The Jinni The Tale Of The Ensorceled Prince The Porter And The Three Ladies Of Baghdad The First Kalandar's Tale The Second Kalandar's Tale The Third Kalandar's Tale The Eldest Lady's Tale The Tale Of The Three Apples Tale of Nur Al-Din Ali and his son Badr Al-Din Hasan The City Of Many-Columned Iram And Abdullah Son Of Abi Kilabah The Sweep And The Noble Lady The Ebony Horse
The 100 Best Books of All Time Many publishers have lists of 100 best books, defined by their own criteria. This article enumerates some lists of "100 best" books for which there are fuller articles. Among them, Science Fiction: The 100 Best Novels (Xanadu, 1985) and Modern Fantasy: The 100 Best Novels (Grafton, 1988) are collections of 100 short essays by a single author, David Pringle, with moderately long critical introductory chapters also by Pringle. For publisher Xanadu, Science Fiction was the first of four "100 Best" books published from 1985 to 1988. The sequels covered crime & mystery, horror, and fantasy. Lists See also References
Learning with Texts :: Help/Information not martha - to make : marble magnets I finally gave in and made marble magnets. Not surprisingly they are quite fun, smooshing the glue out to make a perfect little magnified image is very satisfying. Here, in order of appearance, are the places I referenced: paper candy instructions with pictures (this is the first place I saw this project) dogmestic with instructions and pictures photogeek pictures ugly green chair cute ladybug magnets – pictures with packaging threads at Glitter:onetwothree I bought all of these supplies at Michael’s, including the glue I went back for since I got the wrong kind to start with. These are great packaged in those Altoid-sized tins, I’ve seen them in office/gift shops like that.
Literature Project - Free eBooks Online mary & mac design Leitner system Animation of three sessions. Click to enlarge In the Leitner system , correctly answered cards are advanced to the next, less frequent box, while incorrectly answered cards return to the first box. Alternative method. The Leitner system is a widely used method to efficiently use flashcards that was proposed by the German science journalist Sebastian Leitner in the 1970s. Method [ edit ] In this method flashcards are sorted into groups according to how well you know each one in the Leitner's learning box . Examples [ edit ] Example One [ edit ] Suppose you have 3 boxes of cards called Box 1, Box 2 and Box 3. The advantage of this method is that you can focus on the most difficult flashcards, which remain in the first few groups. Example Two [ edit ] This example uses 5 proficiency levels and 12 decks of flash cards. Learning sessions are numbered from 0 to 9, then the numbering starts over again (that is, 0, 1, 2, ... 8, 9, 0, 1, 2 ...). Automation [ edit ]
Eco Homes: Sustainable Tree Houses | Home and Gardening Eco Factor: The tree houses that are made from the wood capable of being sustained will be catered by the inexhaustible energy.Benoît Fray, who is an industrial designer, has discovered a sustainable tree house, which can be built by using the locally obtained wood. Benoît Fray, who is an industrial designer, has discovered a sustainable tree house, which can be built by using the locally obtained wood. It is also known as Dans mon Arbre. This is a tree house that is particularly designed for the campsite use. The Tree House is 5m from the ground, and it allows its inhabitants to live in the crown of the trees close to the heart of nature without disturbing the overall growth of the tree or its existing structure. More at Benoît FRAY at Coroflot, and ecofriend , dansmonarbre .