Teletext and Viewdata Services in British Public Libraries.

Fuente: ERIC Institute of Education Sciences

Saved in:

Bibliographic Details
Main Author:	Keenan, Stella
Format:	Recurso educativo Open Access
Language:	en
Published:	1982
Subjects:	Community Information Services Information Services Library Personnel Library Research Library Services Public Libraries Reference Services Videotex
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Telereference Services: The Potential for Libraries.
by: Rice, James
Published: (1983)

About Maggie's Place.
by: Emmens, Carol E.
Published: (1982)

Reference Services in Developing Countries.
by: Velho Lopes, Roseanne R.
Published: (1992)

The Future of Reference Services in the Public Library.
by: Lerner, Ivy
Published: (1977)

Community Information Service: A Directory of Public Library Involvement. Student Contribution Series No. 5.
by: Becker, Carol A.
Published: (1974)

Information and Referral Services in Public Libraries: A Survey.
by: O'Brien, Sarah Faith
Published: (1983)

Telereference Services: Another Viewpoint.
by: Rothman, John
Published: (1984)

Neighborhood Information Service Centers. Public Library "Information and Referral" Provides Significant New Personal Service to the Individual Library User. A Background Paper for the White House Conference on Library and Information Services.
by: Layne, Elizabeth N.
Published: (1979)

Why You Should Read the Papers: Improving Reference Service in Public Libraries.
by: Dilevko, Juris, et al.
Published: (2000)

Knowledgeability of Copyright Law among Librarians and Library Paraprofessionals Employed in Adult Services at a Large Public Library System.
by: Lavelle, Bridget M.
Published: (2002)

Your Library: Neighborhood Ombudsman
by: Smith, Eleanor Touhey, et al.
Published: (1976)

Information and Referral Services in Public Libraries: A Survey.
by: Mashuda, Nancy A.
Published: (1980)

Library Reference Service.
by: Schippleck, Suzanne
Published: (1976)

Reference Librarianship and the Small Library: A Selected Survey. Occasional Bibliography #2.
by: Corum, Edythe
Published: (1978)

Research Needed for a Public Library's Community Information Center
by: Slanker, Barbara O.
Published: (1975)

Neighborhood Communications Centers: Planning Information and Referral Services in The Urban Library.
by: Yin, Robert K., et al.
Published: (1974)

Staffing the Reference Desk in the Largely-Digital Library.
by: Coffman, Steve, et al.
Published: (1999)

A Library and Information Science Research Agenda for the 1980s: Summary Report.
by: Cuadra, Carlos A., et al.
Published: (1982)

Videotex and Libraries. Development of Resource Sharing Networks. Networks Study No. 19.
Published: (1981)

A Public Access Videotex Library Service.
by: Phillips, Roger
Published: (1982)

In Our Information Society, Why Isn't the Public Library the Most Important Building in Our Community?
by: Lesko, Matthew
Published: (1992)

Videotex in Libraries: An Assessment of the British Experience and Directions for the Future.
by: Pollard, Richard
Published: (1983)

Night Owl: Maryland's After-Hours Reference Service.
by: Duke, Deborah C.
Published: (1994)

Public Library Service to the Corporate Community
by: Shannon, Zella J.
Published: (1974)

Access to Information and the Public Library.
by: Rayward, W. Boyd
Published: (1982)

Reference Service in Rural Public Libraries.
by: Vavrek, Bernard
Published: (1982)

Knowledge or Information--A Crisis of Purpose in Libraries.
by: Neill, S. D.
Published: (1982)

An Experiment in Literature Service to a Group of Local Decision Makers
by: Goldhor, Herbert
Published: (1978)

Guidelines for Establishing Community Information and Referral Service in Public Libraries.
Published: (1986)

Library Information Service.
by: Perkins, John W.
Published: (1974)

CATV Plus NCPL Equals VRS. (Community Antenna Television Plus the Natrona County Public Library Equals Video Reference Service)
by: Dowlin, Kenneth E.
Published: (1970)

Referral Services in U.S. Academic Depository Libraries: Findings, Implications, and Research Needs.
by: Hernon, Peter, et al.
Published: (1982)

Information and Referral Services--Attitudes and Barriers: A Survey of North Carolina Public Libraries.
by: Baker, Sharon L., et al.
Published: (1988)

Guerrilla Television in the Public Library
by: Peyser, Jay R.
Published: (1973)

Public Library Reference Service--Expectations and Reality.
by: White, Herbert S.
Published: (1999)

The Use of an Automatic Answering Service in Research Libraries
by: Lewis, Alfred J.
Published: (1970)

The Canadian Scene: Telidon and Library Applications.
by: Nash, Mary M., et al.
Published: (1982)

Community Access Bulletin Boards: Cincinnati Librarians Become Involved.
by: Abate, Anne K., et al.
Published: (1992)

The American Public Library. Research Report.
by: Sager, Donald J.
Published: (1982)

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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