MEDLARS II: A Third Generation Bibliographic Production System

Fuente: ERIC Institute of Education Sciences

Saved in:

Bibliographic Details
Main Authors:	Katter, Robert V., Pearson, Karl M.
Format:	Recurso educativo Open Access
Language:	en
Published:	1975
Subjects:	Databases Information Retrieval Information Storage Library Automation Management Information Systems Online Systems
Online Access:	Acceder al recurso
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Database Management Principles of the UCLA Library's Orion System.
by: Fayollat, James, et al.
Published: (1987)

A Personal System for Bibliographic Storage and Retrieval.
by: Chun, Alan
Published: (1987)

The Information Bazaar; Sixth Annual National Colloquium on Information Retrieval, May 8-9, 1969, Philadelphia, Pennsylvania.
by: Schultz, Louise, Ed.
Published: (1969)

Computers and the Language of Bibliographic Descriptions.
by: Neville, H. H.
Published: (1981)

On-Line Remote Catalog Access and Circulation Control System. Part I: Functional Specifications. Part II: User's Manual.
Published: (1969)

Stanford University's BALLOTS System
Published: (1975)

Researching, Evaluating, and Choosing a Backup Service in the Cloud
by: Hastings, Robin
Published: (2012)

Micro-Based Relational Database for a Special Library.
by: Satalkar, Vasudha, et al.
Published: (1988)

Software Choices for In-House Databases.
by: Tenopir, Carol, et al.
Published: (1988)

Optical Technology: Interacting with Traditional Systems.
by: McConnell, Karen
Published: (1987)

Reference Management Software: Selection and Uses.
by: Nashelsky, Joan, et al.
Published: (1991)

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

Content Classification: Leveraging New Tools and Librarians' Expertise.
by: Starr, Jennie
Published: (1999)

Computerizing Internal Information in a Special Library.
by: Gawaldo, Rich, et al.
Published: (1979)

Current and Retrospective Sources of Machine Readable Monograph Cataloging Records; A Study of Their Potential Cost and Utility in Automated System Development at the University of Minnesota.
by: Grosch, Audrey N.
Published: (1975)

Acquisitions Systems: Sydney Micro Library System.
by: Desmarais, Norman
Published: (1986)

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)

InfoQUEST: An Online Catalog for Small Libraries.
by: Campbell, Bonnie
Published: (1984)

Database Structure and System Design of an Online Acquisition System.
by: Balasubramanian, V., et al.
Published: (1986)

A Design for an Online Bibliographic Database: The DOBIS-LIBIS Database.
by: McAllister, A. Stratton, et al.
Published: (1981)

A Guide to Using the Bibliographic Features of the Integrated Library System (ILS).
by: King, Susan G.
Published: (1980)

Compression of Large Inverted Files with Hyperbolic Term Distribution
by: Schuegraf, E. J.
Published: (1976)

Summary Statistics for Five Years of the MARC Data Base.
by: And Others, et al.
Published: (1979)

FORMAT: Canada's Computerized Information System for Audiovisual Materials = FORMAT: Un Systeme National d'Information Informatise pour les Produits Audiovisuels Canadiens.
by: Bidd, Donald, et al.
Published: (1984)

Microcomputers in Libraries.
by: Ertel, Monica M.
Published: (1984)

A Scatter Storage Scheme for Dictionary Lookups
by: Murrary, D. M.
Published: (1970)

Proceedings: Second Annual Meeting, Western Canada Chapter, American Society for Information Science, September 14, 15, 1970, Vancouver Public Library.
by: Dolan, F. T., Ed.
Published: (1970)

Mass Storage Technology and File Organization.
by: Malinconico, S. Michael
Published: (1980)

Learning about and Practice of Designing Local Data Bases as an Harmonizing Factor.
by: Neelameghan, A.
Published: (1987)

The Use of SQL and Second Generation Database Management Systems for Data Processing and Information Retrieval in Libraries.
by: Leigh, William, et al.
Published: (1989)

Using Microsoft Access: A How-To-Do-It Manual for Librarians. How-To-Do-It Manuals for Librarians, Number 76.
by: Butler, E. Sonny
Published: (1997)

SPIRES Tailored to a Special Library: A Mainframe Answer for a Small Online Catalog.
by: Newton, Mary
Published: (1989)

OCLC-MARC Tape Processing: A Functional Analysis.
by: Miller, Bruce Cummings
Published: (1984)

Information Users versus Information Systems.
by: Brown, Jack E.
Published: (1978)

Information Technology.
by: Marcum, Deanna, et al.
Published: (1982)

Database Design for Preservation Project Management: The California Newspaper Project.
by: Hayman, Lynne M.
Published: (1997)

Non-Bibliographic Data-Bases: An Investigation into Their Uses within the Fields of Economics and Business Studies.
by: Wisdom, J. Claire, et al.
Published: (1977)

Problems and Challenges of Downloading for Database Producers.
by: Jansen, Arnold A. J.
Published: (1984)

GaIN: The Georgia Interactive Network for Medical Information.
by: Woods, Elaine
Published: (1985)

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'

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
language	"en"
VUFIND_SESSION	"4d09adf7206d3c19a7cf4321b55f2f39"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1789038540.1353 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "4d09adf7206d3c19a7cf4321b55f2f39" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1455}
SessionHelper	Laminas\Stdlib\ArrayObject {#1782}

Server/Request Data

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REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"language=en; VUFIND_SESSION=4d09adf7206d3c19a7cf4321b55f2f39; ui=standard"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.216.170"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"23602"
REDIRECT_URL	"/Record/eric_EJ119702/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ119702/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1789038540.1312
REQUEST_TIME	1789038540

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
language	"en"
VUFIND_SESSION	"4d09adf7206d3c19a7cf4321b55f2f39"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1789038540.1353 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "4d09adf7206d3c19a7cf4321b55f2f39" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1455}
SessionHelper	Laminas\Stdlib\ArrayObject {#1782}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"language=en; VUFIND_SESSION=4d09adf7206d3c19a7cf4321b55f2f39; ui=standard"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.216.170"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"23602"
REDIRECT_URL	"/Record/eric_EJ119702/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ119702/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1789038540.1312
REQUEST_TIME	1789038540

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

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