Collection Development in Public Health: A Guide to Selection Tools

Fuente: ERIC Institute of Education Sciences

Saved in:

Bibliographic Details
Main Author:	Wallis, Lisa C.
Format:	Recurso educativo Open Access
Language:	en
Published:	2004
Subjects:	Selection Tools Public Health Librarians Library Materials Library Development Library Administration College Libraries Electronic Publishing Electronic Libraries Periodicals
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

_version_	1867181136309911552
author	Wallis, Lisa C.
author_facet	Wallis, Lisa C. Wallis, Lisa C.
collection	Education Resources Information Center
contents	Collection Development in Public Health: A Guide to Selection Tools Wallis, Lisa C. Selection Tools Public Health Librarians Library Materials Library Development Library Administration College Libraries Electronic Publishing Electronic Libraries Periodicals Public health librarians face many challenges in collection development because the field is multidisciplinary, the collection's users have varied needs, and many of the essential resources are grey literature materials. Further, little has been published about public health selection tools. However, librarians responsible for these areas have a number of resources available for their use. As in any subject area, each has its strengths and weaknesses, and users will have to consider their individual collection's needs when deciding which tools are most valuable to them. (Contains 2 tables.)
format	Recurso educativo Open Access
id	eric_EJ873070
institution	ERIC Institute of Education Sciences
language	en
publishDate	2004
record_format	eric
spellingShingle	Collection Development in Public Health: A Guide to Selection Tools Wallis, Lisa C. Selection Tools Public Health Librarians Library Materials Library Development Library Administration College Libraries Electronic Publishing Electronic Libraries Periodicals Collection Development in Public Health: A Guide to Selection Tools Wallis, Lisa C. Selection Tools Public Health Librarians Library Materials Library Development Library Administration College Libraries Electronic Publishing Electronic Libraries Periodicals Public health librarians face many challenges in collection development because the field is multidisciplinary, the collection's users have varied needs, and many of the essential resources are grey literature materials. Further, little has been published about public health selection tools. However, librarians responsible for these areas have a number of resources available for their use. As in any subject area, each has its strengths and weaknesses, and users will have to consider their individual collection's needs when deciding which tools are most valuable to them. (Contains 2 tables.)
title	Collection Development in Public Health: A Guide to Selection Tools
topic	Selection Tools Public Health Librarians Library Materials Library Development Library Administration College Libraries Electronic Publishing Electronic Libraries Periodicals
url	https://eric.ed.gov/?id=EJ873070

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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HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
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REMOTE_PORT	"63842"
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