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Bibliographic Details
Main Author:	Ekhaml, Leticia
Format:	Recurso educativo Open Access
Language:	en
Published:	1995
Subjects:	Audiotape Recorders Bulletin Boards Educational Media Electric Batteries Electronic Equipment Equipment Maintenance Job Training Projection Equipment Safety Technology Education Television Video Equipment
Online Access:	https://eric.ed.gov/?id=EJ503514
Tags:	Add Tag No Tags, Be the first to tag this record!

Security for Campus Computers
Published: (1974)

Magnetic Tape Storage and Handling: A Guide for Libraries and Archives.
by: Van Bogart, John W. C.
Published: (1995)

Set up and Operation of Video Cassette Recorders or "...How Do I Work This Thing???"
Published: (1985)

Evaluating Coin-Operated Copying Equipment for Library Applications
by: Saffady, William
Published: (1976)

Compact Shelving Ten Years Later.
by: Morris, Leslie R.
Published: (1998)

Keys: The Media Maze.
by: Richison, Tom Z.
Published: (1982)

Computer Room Water Protection.
by: Price, Bennett J.
Published: (1990)

The Care and Maintenance of Videodiscs and Players.
by: Paris, Judith, et al.
Published: (1982)

Hands-On Workshop Presented at the Educational Media and Technology Conference, University of Wisconsin-Stout, Menomonie, Wisconsin 54751, July 21-23, 1975.
by: Tiffany, Connie J.
Published: (1975)

Computer Power. Part 2: Electrical Power Problems and Their Amelioration.
by: Price, Bennett J.
Published: (1989)

PROGRAM PLANNING GUIDE FOR INSTRUCTIONAL TELEVISION.
Published: (1961)

Educator's Survival Guide to TV Production Equipment and Setup.
by: Curchy, Christopher, et al.
Published: (1998)

Wide Screen Television Projection Systems.
by: LeClercq, Angie
Published: (1983)

Comprehensive Analysis of the Global Fitness Equipment Market, 2021–2030
by: Next Move Strategy Consulting
Published: (2025)

Computer-Assisted Microcomputer Preventive Maintenance.
by: Ives, David J.
Published: (1993)

SPECTRUM OF ELECTRONIC TEACHING AIDS IN EDUCATION--FUNCTIONS, FACILITIES, BUDGETS.
by: FINSTAD, ALLAN
Published: (1965)

Large Screen Television.
by: Emmens, Carol A.
Published: (1982)

Check Out Your Shop Planning.
by: Brant, Herbert M.
Published: (1967)

A Primer of Projectuals
by: Eisler, H. Michael
Published: (1974)

The Language Laboratory and Modern Language Teaching. Revised Edition.
by: Stack, Edward M.
Published: (1966)

Mixing and Matching Video Components.
by: Emmens, Carol A.
Published: (1983)

The Power of Interactive Whiteboards.
by: Ekhaml, Leticia
Published: (2002)

Caring for Your Videodiscs, CD-ROM Discs, and Players.
by: Ekhaml, Leticia, et al.
Published: (1993)

OACES: An Experiment in Cooperation
by: Nott, Ronald E.
Published: (1975)

Idea Bank--A Library of IDEAS for Science Teachers
by: Talesnick, Irwin, Ed.
Published: (1974)

Taking Care of the Small Computer: A Guide for Librarians.
by: Williams, Gene
Published: (1986)

Presentation Tools for the Classroom & Library/Resource Center.
by: Burmark, Lynell
Published: (1997)

[Problems Inherent in Attempting Standardization of Libraries.]
by: Port, Idelle
Published: (1975)

Idea Bank--A Library of IDEAS for Science Teachers
by: Talesnick, Irwin, Ed.
Published: (1974)

National Bookmobile Guidelines, 1992.
Published: (1992)

Maintenance of Automated Library Systems.
by: Epstein, Susan Baerg
Published: (1983)

The Report of the University Ad Hoc Committee on Instructional Media.
Published: (1971)

An Overview of Videodisc Technology and Some Potential Applications in the Library, Information, and Instructional Sciences.
by: Wood, R. Kent, et al.
Published: (1980)

Free Oscilloscope Web App Using a Computer Mic, Built-In Sound Library, or Your Own Files
by: Ball, Edward, et al.
Published: (2017)

A Planning and Development Proposal.
by: Schachter, Rebeca
Published: (1975)

Selecting Initial Media Equipment for New Facilities
by: Shaver, Johnny M.
Published: (1974)

Audio and Video Cassettes; Friend or Foe of the Librarian?
by: Poulos, Arthur
Published: (1972)

Peter Piper Picked a Porta-Pak
by: Simmons, Beatrice, et al.
Published: (1976)

Video Technology--Past and Present.
by: Markuson, Carolyn
Published: (1981)

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
VUFIND_SESSION	"b86b8abcf7116d71c157dded9a096f16"
ui	"standard"
language	"en"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1784826720.5883 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "b86b8abcf7116d71c157dded9a096f16" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1583}
SessionHelper	Laminas\Stdlib\ArrayObject {#1773}

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	"VUFIND_SESSION=b86b8abcf7116d71c157dded9a096f16; ui=standard; language=en"
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	"216.73.217.169"
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	"12643"
REDIRECT_URL	"/Record/eric_EJ503514/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ503514/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1784826720.5737
REQUEST_TIME	1784826720

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
VUFIND_SESSION	"b86b8abcf7116d71c157dded9a096f16"
ui	"standard"
language	"en"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1784826720.5883 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "b86b8abcf7116d71c157dded9a096f16" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1583}
SessionHelper	Laminas\Stdlib\ArrayObject {#1773}

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	"VUFIND_SESSION=b86b8abcf7116d71c157dded9a096f16; ui=standard; language=en"
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	"216.73.217.169"
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	"12643"
REDIRECT_URL	"/Record/eric_EJ503514/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ503514/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1784826720.5737
REQUEST_TIME	1784826720

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

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