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Z-Library (abbreviated as z-lib, formerly BookFinder) is a shadow library project for file-sharing access to scholarly journal articles, academic texts and general-interest books. It began as a mirror of Library Genesis, but has since expanded dramatically. [6] [7]
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2U, Inc. 2U, Inc. is an American educational technology company that contracts with non-profit colleges and universities to build, deliver and support online degree and non-degree programs. [2] [3] It is also the parent company of edX. [4]
PDF/UA ( PDF/Universal Accessibility ), [1] formally ISO 14289, is an International Organization for Standardization (ISO) standard for accessible PDF technology. A technical specification intended for developers implementing PDF writing and processing software, PDF/UA provides definitive terms and requirements for accessibility in PDF ...
History of PDF. The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of ...
3 min read. Antihistamines are a class of drugs that help to treat the symptoms of various allergies. The main difference between first-generation and second-generation antihistamines is that the ...
A PDF page description can use a matrix to scale, rotate, or skew graphical elements. A key concept in PDF is that of the graphics state, which is a collection of graphical parameters that may be changed, saved, and restored by a page description. PDF has (as of version 2.0) 25 graphics state properties, of which some of the most important are:
Meat and seafood. Tips: Try to plan at least two servings of fish each week. Also aim to fit three servings of lean meat into your meal plan every week. fatty fish. (such as salmon, sardines, or ...