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Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. . Released in beta in November 2004, the Google Scholar index includes peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other ...
Fourth normal form (4NF) is a normal form used in database normalization. Introduced by Ronald Fagin in 1977, 4NF is the next level of normalization after Boyce–Codd normal form (BCNF). Whereas the second , third , and Boyce–Codd normal forms are concerned with functional dependencies , 4NF is concerned with a more general type of ...
SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...
Charles Ponzi was born in Lugo, Emilia-Romagna, Kingdom of Italy on March 3, 1882.He told The New York Times he had come from a family in Parma.Ponzi's ancestors had been well-to-do, and his mother continued to use the title "donna", but the family had subsequently fallen upon difficult times and had little money. [3]
At sign. The at sign, @, is an accounting and invoice abbreviation meaning "at a rate of" (e.g. 7 widgets @ £ 2 per widget = £14), [ 1] now seen more widely in email addresses and social media platform handles. It is normally read aloud as "at" and is also commonly called the at symbol, commercial at, or address sign .
In a United States presidential election, the popular vote is the total number or the percentage of votes cast for a candidate by voters in the 50 states and Washington, D.C.; the candidate who gains the most votes nationwide is said to have won the popular vote. However, the popular vote is not used to determine who is elected as the nation's ...
12%. I watched clips or highlights of the debate. 17%. I read or watched news stories analyzing the debate. 25%. I haven’t heard anything about it. 37%. The prime time debate featured Donald Trump, Jeb Bush, Scott Walker, Mike Huckabee, Ben Carson, Ted Cruz, Marco Rubio, Rand Paul, Chris Christie, Carly Fiorina and John Kasich.
Polyethylene glycol ( PEG; / ˌpɒliˈɛθəlˌiːn ˈɡlaɪˌkɒl, - ˈɛθɪl -, - ˌkɔːl /) is a polyether compound derived from petroleum with many applications, from industrial manufacturing to medicine. PEG is also known as polyethylene oxide ( PEO) or polyoxyethylene ( POE ), depending on its molecular weight. The structure of PEG is ...