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Bibliographic Details
Main Author:	Karina Barrantes
Format:	Artículo científico
Language:	es
Published:	Universitat Autònoma de Barcelona 2011
Subjects:	Educación tecnología ordenadores cofinanciación América Latina
Online Access:	https://www.redalyc.org/articulo.oa?id=342130837009
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Análisis de la aplicación de algunos proyectos nacionales con el uso de nuevas tecnologías. El caso de nueve instituciones de educación de base en México y Colombia Karina Barrantes Georges-Louis Baron Educación Educación tecnología ordenadores cofinanciación América Latina Este artículo presenta una reflexión sobre algunas aplicaciones de proyectos educativos nacionales en instituciones de educación de base de dos países latinoamericanos: México y Colombia. Los resultados se obtuvieron a partir de una investigación exploratoria y, principalmente, a través de la percepción de los actores en el terreno. El marco de este estudio fue la realización de un trabajo de grado para la maestría en Ciencias de la Educación de la Universidad París V René Descartes. Los resultados principales reflejan ciertas diferencias entre los programas de los dos países, así como entre las infraestructuras y las percepciones de los actores de los tres contextos analizados, es decir: escuelas indígenas, rurales y urbanas. Encontramos, igualmente, ciertas tensiones entre los objetivos institucionales de los programas, los usos de las nuevas tecnologías en las escuelas y las percepciones de los actores entrevistados. 2011 artículo científico 0211-819X https://www.redalyc.org/articulo.oa?id=342130837009 es http://www.redalyc.org/revista.oa?id=3421 EDUCAR application/pdf Universitat Autònoma de Barcelona EDUCAR (España) Num.2 Vol.47

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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