“When you look at brain structure, when you look at sleep physiology, the brain activity that goes on, the equivalence of the sleep states, it's all very comparable,” Wilson says, regarding the mammal family tree. Dogs, and other animals, actually aren’t that different from us when it comes to certain aspects of sleep. Do Dogs Dream?įor Matt Wilson, a neuroscientist who studies memory and learning at the Massachusetts Institute of Technology, there is no question that many animals dream. Find out more about what’s going on in your dog’s head while he’s dozing, below. With all that sleep, it’s easy to wonder if dogs dream like people do. Puppies, senior dogs and certain breeds get even more shuteye, around 18 to 20 hours. Both download and print editions of such books should be high quality.According to the National Sleep Foundation, dogs spend about half their day (or, more precisely, 12 to 14 hours of every 24-hour cycle) sleeping. Most newer books are in the original electronic format. Also, their file size tends to be smaller than scanned image books.
These ebooks were created from the original electronic layout files, and therefore are fully text searchable. We mark clearly which print titles come from scanned image books so that you can make an informed purchase decision about the quality of what you will receive. The text is fine for reading, but illustration work starts to run dark, pixellating and/or losing shades of grey. It's the problem of making a copy of a copy. Unfortunately, the resulting quality of these books is not as high. We essentially digitally re-master the book. Also, a few larger books may be resampled to fit into the system, and may not have this searchable text background.įor printed books, we have performed high-resolution scans of an original hardcopy of the book. However, any text in a given book set on a graphical background or in handwritten fonts would most likely not be picked up by the OCR software, and is therefore not searchable. The result of this OCR process is placed invisibly behind the picture of each scanned page, to allow for text searching.
Most older books are in scanned image format because original digital layout files never existed or were no longer available from the publisher.įor PDF download editions, each page has been run through Optical Character Recognition (OCR) software to attempt to decipher the printed text.
These products were created by scanning an original printed edition.
0 kommentar(er)
