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Bibliographic Details
Main Author:	Emmens, Carol A.
Format:	Recurso educativo Open Access
Language:	en
Published:	1983
Subjects:	Audio Equipment Broadcast Reception Equipment Display Systems Merchandise Information Purchasing Television Video Equipment
Online Access:	https://eric.ed.gov/?id=EJ291902
Tags:	Add Tag No Tags, Be the first to tag this record!

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

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

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

Direct Broadcast Satellites: An Interview with Hartford Gunn.
Published: (1984)

Selecting Microform Reading Equipment.
by: McIntosh, Melinda
Published: (1983)

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

Narrow Bandwidth Telecommunications.
by: Kessler, William J., et al.
Published: (1970)

Dot Matrix Impact Printers: An Overview and Guide.
by: Warden, William H., et al.
Published: (1983)

VDT Checklist: Another Look at Terminals.
by: Crawford, Walt
Published: (1984)

Photocopying Equipment.
Published: (1982)

Standards for Speakers.
by: Storm, William D.
Published: (1981)

On-Line Communications Devices.
by: Sternick, Barbara R.
Published: (1974)

Guidelines for the Integration of Instructional Television in Speech and Hearing Facilities.
by: Borich, Gary D.
Published: (1969)

Multiply and Conquer to Increase Program Use
by: Catterson, Don
Published: (1975)

BBC Handbook 1973.
Published: (1972)

Santa Cruz Community Service Television Project.
by: Frederiksen, Herbert Allan
Published: (1971)

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

The Wired Public Library; Who Needs It? What Will It Cost? Who Will Pay For It?
Published: (1973)

Selection of Word Processing Software for Library Use.
by: Block, David, et al.
Published: (1983)

Microcomputer-Based Library Catalog Software.
by: Lundeen, Gerald, et al.
Published: (1984)

First Public Library Satellite Receiver System.
by: Donaldson, Marion F.
Published: (1982)

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

Big.
by: Everhart, Nancy, et al.
Published: (2000)

Survey of Library Video Resources, 1977.
Published: (1977)

How to Buy a Bookmobile.
by: Topping, Russ, et al.
Published: (1992)

The Audiovisual Supplier: Dealing with Dealers and Distributors
by: Hingers, Edward J.
Published: (1976)

Attention Novices: Friendly Intro to Shiny Disks.
by: Bardes, D'Ellen
Published: (1986)

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

Things the Teacher of Your Media Utilization Course May Not Have Told You.
by: Ekhaml, Leticia
Published: (1995)

How To Select Furniture for the Library.
by: Lohrer, Nancy
Published: (1997)

The EPEOS Experiment.
by: Lefranc, Robert
Published: (1981)

Microcomputers for Libraries: Features, Descriptions, Evaluations.
by: Warden, William H., et al.
Published: (1983)

Dishing It Out: Satellite Services in Public Libraries.
by: Amdursky, Saul J.
Published: (1985)

Choosing Technologies for School Library Media Centers: Hardware Selection.
by: Crowe, Virginia M.
Published: (1984)

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)

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

Making Waves: With Podcasting, Anyone (Yes, Anyone) Can Create Their Own Radio Show
by: Richardson, Will
Published: (2006)

"Have You Watched A Book Today?" An Experimental Project of The Public Television Library. First Quarter Report.
Published: (1973)

Community Television and the Monroe County Public Library.
by: Smith, Don R.
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
ui	"standard"
language	"en"
VUFIND_SESSION	"ce889ec84d70248573b9489ab5154f3b"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1784779182.663 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "ce889ec84d70248573b9489ab5154f3b" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1583}
SessionHelper	Laminas\Stdlib\ArrayObject {#1773}

Server/Request Data

Key	Value
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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	"ui=standard; language=en; VUFIND_SESSION=ce889ec84d70248573b9489ab5154f3b"
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	"4147"
REDIRECT_URL	"/Record/eric_EJ291902/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ291902/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1784779182.657
REQUEST_TIME	1784779182

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
ui	"standard"
language	"en"
VUFIND_SESSION	"ce889ec84d70248573b9489ab5154f3b"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1784779182.663 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "ce889ec84d70248573b9489ab5154f3b" ]`]
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	"ui=standard; language=en; VUFIND_SESSION=ce889ec84d70248573b9489ab5154f3b"
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	"4147"
REDIRECT_URL	"/Record/eric_EJ291902/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ291902/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1784779182.657
REQUEST_TIME	1784779182

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

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