On Utilities, Elitism, and Democracy.

Fuente: ERIC Institute of Education Sciences

Saved in:

Bibliographic Details
Main Authors:	Stam, David H., And Others
Format:	Recurso educativo Open Access
Language:	en
Published:	1980
Subjects:	Democracy Information Networks Information Retrieval Library Networks Online Systems
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

RLIN, OCLC, WLN, and UTLAS.
by: Plotnik, Arthur
Published: (1980)

OCLC and RLG: Living Together.
by: Martin, Susan K.
Published: (1980)

SCORPIO, A Subject Content Oriented Retriever for Processing Information On-Line
by: Power, D. Lee, et al.
Published: (1976)

Study of Message Text Formats: Bibliographic Search Queries.
by: Long, Philip L.
Published: (1979)

Overview of Computerized Library Networking in Canada. Canadian Computerized Bibliographic Centre Study Background Paper. 1979-05-10.
by: Duchesne, R. M., et al.
Published: (1979)

Status of Processing Services Automation in the Library of Congress.
by: Avram, Henriette D., et al.
Published: (1983)

Interactive Information Networks and UK Libraries.
by: Vickery, Brian, et al.
Published: (1984)

Coordination of Two On-Line Information Retrieval Services At the University of Minnesota Bio-Medical Library.
by: Egeland, Jan, et al.
Published: (1973)

Retrieval Behavior of Derived Truncated Search Keys for a Large On-Line Bibliographic File.
by: Rastogi, Kunj B.
Published: (1980)

Experiences of an Interactive Retrieval System--ESRO/RECON.
by: Hjerppe, Roland
Published: (1974)

The OCLC Serials Sub-System: A First Evaluation.
by: Edgar, Neal L., et al.
Published: (1978)

OASIS: Prototyping Graphical Interfaces to Networked Information.
by: Buckland, Michael K., et al.
Published: (1993)

Bibliographic Utilities in the 1980's.
by: Schultz, Lois
Published: (1983)

Computer-Based Information Services in Medicine: A Feasibility Study.
by: Cox, P. H., et al.
Published: (1979)

Proceedings of the Integrated Online Library Systems Meeting (9th, New York, May 11-12, 1994).
by: Cibbarelli, Pamela R., Comp., et al.
Published: (1994)

Automated Periodical Reference Service.
by: Ellefsen, David
Published: (1985)

Artificial Intelligence and Authority Control.
by: Burger, Robert H.
Published: (1984)

A Remote-Terminal Retrospective Search Facility Using a Hybrid of Microform and Computer Storage
by: Irvine, J. J.
Published: (1973)

Cooperative Online Services for Small Academic Libraries.
by: Holl, Deborah G.
Published: (1980)

Customized User Services via Interactions with LEADERMART
by: Hillman, Donald J.
Published: (1973)

The Application of Monitor Data Analysis Techniques to Audit Trail Data from an On-Line System.
by: Penniman, W. D., et al.
Published: (1980)

Browsing Image Collections with Representations of Common-Sense Activities.
by: Gordon, Andrew S.
Published: (2001)

Description of a Computerized, On-Line Interlibrary Loan System.
by: Kilgour, Frederick G.
Published: (1979)

DOBIS-WLN Impact Study. Report.
by: Turner, Ann, et al.
Published: (1980)

On Converging Paths: The Computing Center and the Library.
by: Molholt, Pat
Published: (1985)

The RLIN Reports System: A Tool for MARC Selection and Listing.
by: Crawford, Walt
Published: (1984)

A Utility User's Glossary.
by: Matthews, Joseph R.
Published: (1980)

The Use of Microcomputers for Information Retrieval.
by: Scharff, L., et al.
Published: (1983)

The Role of Standards in Networking.
by: McCallum, Sally H.
Published: (1980)

Community Information in the 80s: Towards the Automation of Information and Referral Files.
by: Shroder, Emelie J., et al.
Published: (1981)

Study and Preparation of Message Text Formats for NTAG.
by: Long, Philip L.
Published: (1978)

User-Computer Interface Designs for Information Systems: A Review.
by: Brenner, Lisa P., et al.
Published: (1980)

A Bibliographic Guide to OCLC.
by: Rao, Pal V.
Published: (1979)

Information Management. VALA National Conference on Library Automation Proceedings (2nd, Melbourne, Australia, November 28-December 1, 1983). Volume 2.
by: Cheney, B. J., Ed.
Published: (1983)

The Microcomputer in the Library: III. Information Retrieval from External and Internal Databases.
by: Leggate, Peter, et al.
Published: (1986)

Towards More Effective Nationwide Library and Information Networking in Canada. Final Report of the Canadian Computerized Bibliographic Centre Study. 1980-03-03.
by: Duchesne, R. M., et al.
Published: (1980)

Document Delivery: A Study of Different Sources.
by: Currie, Jean
Published: (1985)

Using RLIN as a Reference Tool: Ballots Revisited.
by: Ojala, Marydee
Published: (1982)

Total Library Integration at Xerox Corporation Technical Information Center. Part II: Basically Books.
by: Belli, Frank G., et al.
Published: (1986)

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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