The Uses and Limitations of Trueswell.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Sargent, Seymour H.
Format:	Recurso educativo Open Access
Language:	en
Published:	1979
Subjects:	Books College Libraries Library Collections Statistical Studies Tables (Data) Use Studies
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

The Use of Books within the Library.
by: Selth, Jeff, et al.
Published: (1992)

Secondary Analysis of Data on a Sample of Adult Titles in the Humanities Held by 20 United States Public Libraries.
by: Goldhor, Herbert
Published: (1981)

The Use and Weeding of a Community College Book Collection.
by: Ettelt, Harold
Published: (1993)

Measuring Readers' Failure at the Shelf
by: Urquhart, John A., et al.
Published: (1971)

Weeding the Forest Hill Branch of Toronto Public Library by the Slote Method: A Test Case.
by: McKee, Penelope
Published: (1981)

Circulation and In-Library Use of Government Publications.
by: Cook, Kevin L.
Published: (1985)

Statistical Collection Simplified within the Purdue General Library. Part I.
by: Pinzelik, Barbara P., et al.
Published: (1972)

Interlending in a University Library: The KFUPM Library Experience.
by: Siddiqui, Moid A.
Published: (1990)

Document Availability and Use Patterns at the University of California, Berkeley Library: A Comparison with California State University, Sacramento.
by: Martell, Charles
Published: (1975)

Use of Library Materials at a Small Liberal Arts College.
by: Hardesty, Larry
Published: (1981)

Book Borrowing in Academic Libraries, 1964/65-1968/69. The Trend Was Down.
by: Jones, Harold D.
Published: (1972)

On the Stability of Distributions of the Type Described by Trueswell.
by: Kantor, Paul B.
Published: (1980)

Gathering Useful Circulation Data in the Documents Department.
by: Cook, Kevin L.
Published: (1985)

Use of Library Materials: The University of Pittsburgh Study.
by: Kent, Allen, et al.
Published: (1979)

Testing for Markov-Chain Properties in the Circulation of Social-Science Monographs.
by: Coady, Reginald P.
Published: (1984)

Circulation of Materials from Purdue University Libraries. RDU-75-06.
by: Drake, Miriam A.
Published: (1975)

Planning for Priorities: A Survey of Academic Library Use.
by: Schlachter, Gail
Published: (1975)

Determining a Cost Effective Sampling Technique Which Will Provide Estimates of the Number of Patrons Utilizing the Purdue General Library During the Fall Semester of 1973.
by: Tolliver, Don L., et al.
Published: (1973)

The Effectiveness of Book Selection Agents in a Small Academic Library.
by: Millson-Martula, Christopher
Published: (1985)

The Distribution of Use of Library Materials: Analysis of Data from the University of Pittsburgh.
by: Hayes, Robert M.
Published: (1981)

Who Borrows Maps from A University Library Map Collection--And Why? Report II
by: Ray, Jean M.
Published: (1978)

North Dakota Academic Library Statistics, July 1974-June 1975.
Published: (1976)

Purposes and Uses of Residence Hall Libraries.
by: Oltmanns, Gail, et al.
Published: (1985)

Comparing Return Rates of Home Loans of Social Science Book Material.
by: Coady, Reginald P.
Published: (1986)

Application of a Loss Rate Determination Heuristic to the Language and Linguistics Collection in the Brigham Young University Harold B. Lee Library.
by: Lowry, Glenn R.
Published: (1977)

A Technical and User Audit of the Shared Cataloging Support Sub-System of the New England Library Information Network (NELINET). Volume II, Tables and Supplementary Documentation.
Published: (1973)

Use of Selection Tools.
by: Fry, Thomas K., Comp.
Published: (1974)

Rationalization of Periodical Holdings: A Case Study at Chalmers University Library.
by: Fjallbrant, Nancy
Published: (1984)

Cooperative Information Network Interlibrary Loan Non-Filled Request Study.
by: Plotkin, Jack
Published: (1975)

Applications of Operations Research Techniques in Tufts University Libraries.
by: Rouse, William B., Ed.
Published: (1973)

A Caveat on the Hazards of Using Faulty Instruments to Measure Library Performance
by: Gore, Daniel
Published: (1978)

Application of a Collection Loss Rate Determination Heuristic to the Brigham Young University, Harold B. Lee Library Collection.
by: Lowry, Glenn R.
Published: (1977)

The Past and Likely Future of 58 Research Libraries, 1951-1980: A Statistical Study of Growth and Change, 1971-72 (Ninth) Issue.
by: Dunn, Oliver C., et al.
Published: (1973)

A Study of Audiobook Users at the Salem, Ohio Public Library.
by: Yingling, John
Published: (1998)

Secondary Access Storage of Books in Small and Medium-Sized Academic Libraries: A Proposal for an Experimental Model.
by: Spyers-Duran, Peter
Published: (1973)

Nonfiction Book Use by Academic Library Users. Research Report-88/1.
by: Prabha, Chandra G., et al.
Published: (1988)

A Comparative Study of Microform Use in a Research Library: The Use Study as a Management Tool.
by: Holloway, Carson, et al.
Published: (1990)

Sampling and Data Collection Methods for a Book-Use Study
by: Jain, A. K.
Published: (1969)

Pamphlet Usage in a Medium-Sized Academic Library.
by: Rose, Robert F.
Published: (1979)

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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