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Main Authors:	Glynn, Thomas J., Ed., Nelson, Jack E., Ed.
Format:	Recurso educativo Open Access
Language:	en
Published:	1982
Subjects:	Drug Abuse Drug Education Drug Legislation Drug Rehabilitation Ethics Public Health Research Needs Research Opportunities Social Problems
Online Access:	https://eric.ed.gov/?id=ED234292
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author	Glynn, Thomas J., Ed. Nelson, Jack E., Ed.
author_facet	Glynn, Thomas J., Ed. Nelson, Jack E., Ed. Glynn, Thomas J., Ed. Nelson, Jack E., Ed.
collection	Education Resources Information Center
contents	Public Health Issues and Drug Abuse Research. Research Issues 30. Glynn, Thomas J., Ed. Nelson, Jack E., Ed. Drug Abuse Drug Education Drug Legislation Drug Rehabilitation Ethics Public Health Research Needs Research Opportunities Social Problems This volume, 30th of a series dealing with social and behavioral implications of human drug involvements, contains abstracts of literature concerning public health issues relevant to the drug field. Intended to provide drug researchers with a sampling of drug-relevant literature (published in English since 1970) across a number of public health areas, 77 articles are summarized and arranged alphabetically by author within these sections: general/historical issues; legal issues; ethical and social issues; research issues; treatment issues; single-drug issues; and international issues. The document also provides an extensive, supplementary bibiliography of additional readings, which were chosen through searches of major clearinghouses, databases, library collections, special bibliographies, current issues of newsletters and journals, and bibliographies provided by a peer review panel. Author and subject indexes are also included. (WAS)
format	Recurso educativo Open Access
id	eric_ED234292
institution	ERIC Institute of Education Sciences
language	en
publishDate	1982
record_format	eric
spellingShingle	Public Health Issues and Drug Abuse Research. Research Issues 30. Glynn, Thomas J., Ed. Nelson, Jack E., Ed. Drug Abuse Drug Education Drug Legislation Drug Rehabilitation Ethics Public Health Research Needs Research Opportunities Social Problems Public Health Issues and Drug Abuse Research. Research Issues 30. Glynn, Thomas J., Ed. Nelson, Jack E., Ed. Drug Abuse Drug Education Drug Legislation Drug Rehabilitation Ethics Public Health Research Needs Research Opportunities Social Problems This volume, 30th of a series dealing with social and behavioral implications of human drug involvements, contains abstracts of literature concerning public health issues relevant to the drug field. Intended to provide drug researchers with a sampling of drug-relevant literature (published in English since 1970) across a number of public health areas, 77 articles are summarized and arranged alphabetically by author within these sections: general/historical issues; legal issues; ethical and social issues; research issues; treatment issues; single-drug issues; and international issues. The document also provides an extensive, supplementary bibiliography of additional readings, which were chosen through searches of major clearinghouses, databases, library collections, special bibliographies, current issues of newsletters and journals, and bibliographies provided by a peer review panel. Author and subject indexes are also included. (WAS)
title	Public Health Issues and Drug Abuse Research. Research Issues 30.
topic	Drug Abuse Drug Education Drug Legislation Drug Rehabilitation Ethics Public Health Research Needs Research Opportunities Social Problems
url	https://eric.ed.gov/?id=ED234292

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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