The Information Superhighway, the Community College and the Real World: Reflections on the Impact of Technology on Reference Work.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Jenkins, Lawrence
Format:	Recurso educativo Open Access
Language:	en
Published:	1999
Subjects:	Academic Libraries Community Colleges Computer Uses in Education Information Retrieval Librarians Library Services Online Searching Reference Services Two Year Colleges User Satisfaction (Information)
Online Access:	Acceder al recurso
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author	Jenkins, Lawrence
author_facet	Jenkins, Lawrence Jenkins, Lawrence
collection	Education Resources Information Center
contents	The Information Superhighway, the Community College and the Real World: Reflections on the Impact of Technology on Reference Work. Jenkins, Lawrence Academic Libraries Community Colleges Computer Uses in Education Information Retrieval Librarians Library Services Online Searching Reference Services Two Year Colleges User Satisfaction (Information) Examines how technology has changed the library systems since the 1970s and 1980s. Asserts that information retrieval has gained a speed and immediacy that it did not have a decade ago, and that library users have expectations of convenience when using electronic information sources, which has caused reference librarians to rethink traditional service modes. (VWC)
format	Recurso educativo Open Access
id	eric_EJ591741
institution	ERIC Institute of Education Sciences
language	en
publishDate	1999
record_format	eric
spellingShingle	The Information Superhighway, the Community College and the Real World: Reflections on the Impact of Technology on Reference Work. Jenkins, Lawrence Academic Libraries Community Colleges Computer Uses in Education Information Retrieval Librarians Library Services Online Searching Reference Services Two Year Colleges User Satisfaction (Information) The Information Superhighway, the Community College and the Real World: Reflections on the Impact of Technology on Reference Work. Jenkins, Lawrence Academic Libraries Community Colleges Computer Uses in Education Information Retrieval Librarians Library Services Online Searching Reference Services Two Year Colleges User Satisfaction (Information) Examines how technology has changed the library systems since the 1970s and 1980s. Asserts that information retrieval has gained a speed and immediacy that it did not have a decade ago, and that library users have expectations of convenience when using electronic information sources, which has caused reference librarians to rethink traditional service modes. (VWC)
title	The Information Superhighway, the Community College and the Real World: Reflections on the Impact of Technology on Reference Work.
topic	Academic Libraries Community Colleges Computer Uses in Education Information Retrieval Librarians Library Services Online Searching Reference Services Two Year Colleges User Satisfaction (Information)
url	https://eric.ed.gov/?id=EJ591741

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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