The Invasion of the Giant Spore. SOLINET Preservation Program Leaflet Number 5.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Nyberg, Sandra
Format:	Recurso educativo Open Access
Language:	en
Published:	1987
Subjects:	Archives Books Cleaning Climate Control Hazardous Materials Library Facilities Library Materials Paper (Material) Physical Environment Preservation
Online Access:	Acceder al recurso
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Conservation of Library Material in Tropical Conditions: The Example of Nigeria.
by: Ogundipe, O. O.
Published: (1980)

Procedures for Salvage of Water-Damaged Library Materials.
by: Waters, Peter
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Principles for the Preservation and Conservation of Library Materials. IFLA Professional Reports, No. 8.
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The Preservation and Restoration of Paper Records and Books: A RAMP Study with Guidelines.
by: Crespo, Carmen, et al.
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Study on Mass Conservation Techniques for Treatment of Library and Archives Material.
by: Wachter, Wolfgang, Ed.
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Preservation Conditions, Practices, and Needs in the General Libraries. A Report by the Preservation Committee.
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Environmental Factors Affecting the Permanence of Library Materials
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Conditions of Storing the Documents as the Chief Means of Preserving the Library Holdings (As Shown by the Experience of the Russian State Library).
by: Perminova, Olga, et al.
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Fashion Your New Library from Old.
by: Burgin, William R.
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A Mold by Any Other Name: One Librarian's Battle Against a Mold Bloom.
by: Smith, Laura Katz
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Conservation of Drawings and Prints
by: King, Antoinette
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Resuscitating a Water-logged Library
by: Martin, John H.
Published: (1975)

Archival Preservation
by: Nelson, Clark W.
Published: (1975)

Controlling Mold on Library Materials with Chlorine Dioxide: An Eight-Year Case Study.
by: Weaver-Meyers, Pat L., et al.
Published: (1998)

Slow Fires Still Burn: Results of a Preservation Assessment of Libraries in L'viv, Ukraine and Sofia, Bulgaria.
by: Baird, Brian J., et al.
Published: (2003)

Permanence/Durability of the Book-VII. Physical and Chemical Properties of Book Papers, 1507 - 1949.
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Planning and Development of a Conservation Facility.
by: Coley, Betty A.
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Basic Book Repair Methods.
by: Schechter, Abraham A.
Published: (1999)

Preservation Planning Program. Study Report. Iowa State University Library. Final Report.
by: Galejs, John, et al.
Published: (1987)

Revised Specifications for Uncoated Permanent/Durable Book Paper.
by: Roberson, David D.
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Preserving Your Historical Records. Proceedings of the Symposium Held at Drake University (Des Moines, Iowa, October 21-22, 1978).
by: Fishbein, Toby, Ed., et al.
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Bibliography on Mass Deacidification.
by: Zimmermann, Carole
Published: (1991)

Paper Preservation: Nature, Extent, & Recommendations. Occasional Papers. Number 171.
by: Westbrook, Lynn
Published: (1985)

Current Trends in Preservation Research and Development.
by: Cunha, George Martin
Published: (1990)

Micro-Preservation: Conserving the Small Library.
by: DeCandido, Robert, et al.
Published: (1985)

STRENGTH AND OTHER CHARACTERISTICS OF BOOK PAPERS 1800-1899. PERMANENCE/DURABILITY OF THE BOOK--V.
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Book Preservation Technologies.
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Halon Gas and Library Fire Protection.
by: Pacey, Antony
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Book Preservation Technologies. Summary.
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Deterioration of Library Collections Today
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Conservation, Preservation and Restoration in Nigerian Libraries.
by: Ojo-Igbinoba, M. E.
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Paper Impermanence As a Consequence of pH and Storage Conditions
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Permanence/Durability of the Book-VI. Spot Testing for Unstable Modern Book and Record Papers.
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Published: (1987)

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Declaring War on Deterioration: David Magoon Wants To Help Us.
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The Once and Future Book: The Preservation Crisis.
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The Problem of Acidity in the Conservation of Documents
by: Kathpalia, Y. P.
Published: (1975)

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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