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  2. Employment record book - Wikipedia

    en.wikipedia.org/wiki/Employment_Record_Book

    The full name of the owner; Date and location of his birth; Name and the last place of the owner's father or guardian; Owner's signature; All this data should be registered with a local police office, thus turning an Arbeitsbuch into a sort of internal passport identity document. German employment record books / Deutsche Arbeitsbücher

  3. International English Language Testing System - Wikipedia

    en.wikipedia.org/wiki/International_English...

    Website. ielts.org. International English Language Testing System (IELTS / ˈaɪ.ɛlts /) [ 6 ] is an international standardized test of English language proficiency for non-native English language speakers. It is jointly managed by the British Council, IDP and Cambridge English, [ 6 ] and was established in 1989.

  4. Linear-feedback shift register - Wikipedia

    en.wikipedia.org/wiki/Linear-feedback_shift_register

    In computing, a linear-feedback shift register (LFSR) is a shift register whose input bit is a linear function of its previous state. The most commonly used linear function of single bits is exclusive-or (XOR). Thus, an LFSR is most often a shift register whose input bit is driven by the XOR of some bits of the overall shift register value.

  5. Hausdorff maximal principle - Wikipedia

    en.wikipedia.org/wiki/Hausdorff_maximal_principle

    Hausdorff maximal principle. In mathematics, the Hausdorff maximal principle is an alternate and earlier formulation of Zorn's lemma proved by Felix Hausdorff in 1914 (Moore 1982:168). It states that in any partially ordered set, every totally ordered subset is contained in a maximal totally ordered subset, where "maximal" is with respect to ...

  6. PDF/A - Wikipedia

    en.wikipedia.org/wiki/PDF/A

    PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...

  7. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    This is an accepted version of this page This is the latest accepted revision, reviewed on 18 October 2024. Portable Document Format, a digital file format For other uses, see PDF (disambiguation). Portable Document Format Adobe PDF icon Filename extension.pdf Internet media type application/pdf, application/x-pdf application/x-bzpdf application/x-gzpdf Type code PDF (including a single ...

  8. Oxford Placement Test - Wikipedia

    en.wikipedia.org/wiki/Oxford_Placement_Test

    The Oxford Placement Test (OPT), also called the Oxford Online Placement Test (OOPT), is an on demand computer-adaptive test of the English language for non-native speakers of English, reporting at Pre-A1, A1, A2, B1, B2, C1, and C2 levels of the Common European Framework of Reference (CEFR). The test was developed by Oxford University Press ...

  9. H-1B1 visa - Wikipedia

    en.wikipedia.org/wiki/H-1B1_visa

    The H-1B1 visa (and associated H-1B1 status) is a variant of the H-1B visa in the United States for nationals of Singapore and Chile. The version for Singapore is called the H-1B1-Singapore and the version for Chile is called the H-1B1-Chile. These categories were introduced with the Singapore–United States Free Trade Agreement and Chile–United States Free Trade Agreement respectively ...