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Bibliographic Details
Main Author:	Lorenzo Miguel Ángel Herrera Batista
Format:	Artículo científico
Language:	es
Published:	Universidad Autónoma Metropolitana 2002
Subjects:	Educación Asimilación Psicología cognitiva Ambientes virtuales de aprendizaje
Online Access:	https://www.redalyc.org/articulo.oa?id=34003507
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Las fuentes del aprendizaje en ambientes virtuales educativos Lorenzo Miguel Ángel Herrera Batista Educación Asimilación Psicología cognitiva Ambientes virtuales de aprendizaje Desde el punto de vista de la psicología cognitiva, el aprendizaje se define comocambios en las estructuras intelectuales del individuo. Piaget describió los procesosde asimilación y acomodación para explicar cómo es que un individuo logra modificarsus estructuras conceptuales y con ello, aprender; sin embargo, con el desarrollo delas nuevas tecnologías de comunicación e interacción es necesario redefinir estosprocesos, por lo que este artículo presenta una aproximación al problema del aprendizajemediado por computadora desde una perspectiva cognitiva. 2002 artículo científico 0188-168X https://www.redalyc.org/articulo.oa?id=34003507 es http://www.redalyc.org/revista.oa?id=340 REencuentro. Análisis de Problemas Universitarios application/pdf Universidad Autónoma Metropolitana REencuentro. Análisis de Problemas Universitarios (México) Num.35

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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