Have Users Changed Their Style? A Survey of CD-ROM vs. OPAC Product Usage.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Anderson, Judy
Format:	Recurso educativo Open Access
Language:	en
Published:	1995
Subjects:	Graduate Students Help Seeking Higher Education Information Seeking Library Instruction Library Personnel Library Surveys Online Systems Postsecondary Education Search Strategies Student Surveys Undergraduate Students
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

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author	Anderson, Judy
author_facet	Anderson, Judy Anderson, Judy
collection	Education Resources Information Center
contents	Have Users Changed Their Style? A Survey of CD-ROM vs. OPAC Product Usage. Anderson, Judy Graduate Students Help Seeking Higher Education Information Seeking Library Instruction Library Personnel Library Surveys Online Systems Postsecondary Education Search Strategies Student Surveys Undergraduate Students A survey of online search techniques of 50 undergraduate and graduate students at Arizona State University's Hayden Library revealed heavy reliance on simple subject searching. The analysis included search types, use of library personnel and online help screens, exposure to library instruction, and length of time at the terminal for citation versus abstract products. (Author/AEF)
format	Recurso educativo Open Access
id	eric_EJ503471
institution	ERIC Institute of Education Sciences
language	en
publishDate	1995
record_format	eric
spellingShingle	Have Users Changed Their Style? A Survey of CD-ROM vs. OPAC Product Usage. Anderson, Judy Graduate Students Help Seeking Higher Education Information Seeking Library Instruction Library Personnel Library Surveys Online Systems Postsecondary Education Search Strategies Student Surveys Undergraduate Students Have Users Changed Their Style? A Survey of CD-ROM vs. OPAC Product Usage. Anderson, Judy Graduate Students Help Seeking Higher Education Information Seeking Library Instruction Library Personnel Library Surveys Online Systems Postsecondary Education Search Strategies Student Surveys Undergraduate Students A survey of online search techniques of 50 undergraduate and graduate students at Arizona State University's Hayden Library revealed heavy reliance on simple subject searching. The analysis included search types, use of library personnel and online help screens, exposure to library instruction, and length of time at the terminal for citation versus abstract products. (Author/AEF)
title	Have Users Changed Their Style? A Survey of CD-ROM vs. OPAC Product Usage.
topic	Graduate Students Help Seeking Higher Education Information Seeking Library Instruction Library Personnel Library Surveys Online Systems Postsecondary Education Search Strategies Student Surveys Undergraduate Students
url	https://eric.ed.gov/?id=EJ503471

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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