Quantum Computing: Selected Internet Resources for Librarians, Researchers, and the Casually Curious

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Cirasella, Jill
Format:	Recurso educativo Open Access
Language:	en
Published:	2009
Subjects:	Web Sites Quantum Mechanics Internet Annotated Bibliographies Electronic Libraries Information Sources Computation Library Materials Reference Materials Resource Materials Research Tools
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Reference Resources in German Literature: An Annotated Guide.
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Passages to Family History: A Guide to Genealogical Research in the Dartmouth College Library.
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Resources for Topics in Architecture.
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Resources for Topics in Art.
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Researching Theatrical Dance. A Guide to Basic Collections, Bibliographies, Reference Books, Serials, Historical Surveys, Manuals, Special Studies, Films, Addresses, and Other Essentials; Primarily as Related to Theatrical Dance.
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Best Reference 2006
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Handbook of Reference Sources and Services for Small and Medium-sized Libraries. Second Edition.
by: Nichols, Margaret Irby
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A Selective and Evaluative Bibliographic Essay on Mormonism: For Use in Public, Academic, and Special Libraries.
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Leading Education Reference Sources.
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Guide to Selected African-American Materials in the UTK Libraries.
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Special Collections and the New Web: Using LibGuides to Provide Meaningful Access
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South Asia: A Guide to Reference Sources.
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Southwestern Native American Studies: A Selected Bibliography.
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Subject Bibliographies and Research Guides. 1985-1987.
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The Scots-Irish Americans: A Guide to Reference and Information Sources for Research.
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Fundamentals of Reference
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How To Do Library Research in Public Health Care Policy. Number 21.
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Invasion of the Anthropods. A Selected Annotated Bibliography to Reference Sources and Periodicals in Anthropology.
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China and Inner Asia: A Selected Bibliography and Guide to Research at Tutt Library.
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China: A Guide to Reference Sources in English and Chinese.
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Nursing: Tools for the Selection of Library Resources
by: Owens, Janet W.
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Rethinking Reference: Consistent Values, New Methods, and Different Tools
by: Kendrick, Kaetrena Davis
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Researching Treaty Information: An Annotated Guide to Key Reference Sources.
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Native Americans: Subject Guide.
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Select Bibliography and Overview of Bunge's Publications Related to Reference Sources.
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Best of Reference 2009
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if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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