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Autore principale:	Manuel Sotomayor Zambrano
Natura:	Artículo científico
Lingua:	es
Pubblicazione:	Universidad Peruana de Ciencias Aplicadas 2005
Soggetti:	Educación Comunicación Argumentación Interactividad Foros de discusión
Accesso online:	https://www.redalyc.org/articulo.oa?id=498573055004
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Dialogando en los foros de discusión: pautas para el diseño y la evaluación Manuel Sotomayor Zambrano Educación Comunicación Argumentación Interactividad Foros de discusión La educación contemporánea, basada en los redescubrimientos psicológicos (Vygotsky, Freud) y de la filosofía de la mente (Wittgenstein, Austin) revalora el papel fundamental de lo social en la formación de la mente del ser humano. En este artículo, nos centramos en dos puntos. Primero, en cómo podemos concebir el Foro de Discusión como una herramienta educativa (parte del grupo de las herramientas de Internet al servicio de la educación) dentro del marco de la comunicación, como uno de los mecanismos por los cuales los seres humanos construyen un espacio intersubjetivo en común. El segundo punto es la presentación de una propuesta de criterios (interactividad, cooperación dialógica y calidad argumentativa) que permitan evaluar si esta herramienta educativa permite desarrollar un espacio intersubjetivo que ayude a mejorar las condiciones del diálogo y la convivencia. 2005 artículo científico 2223-2516 https://www.redalyc.org/articulo.oa?id=498573055004 es http://www.redalyc.org/revista.oa?id=4985 Revista Digital de Investigación en Docencia Universitaria application/pdf Universidad Peruana de Ciencias Aplicadas Revista Digital de Investigación en Docencia Universitaria (Perú) Num.1 Vol.1

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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Environment & details: