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Detalles Bibliográficos
Autor principal:	Andrea Perea
Formato:	Artículo científico
Lenguaje:	es
Publicado:	Universidade Estadual Paulista Júlio de Mesquita Filho 2017
Materias:	Educación Electrostática Enseñanza superior Enseñanza de la física Epistemología personal Resolución de problemas
Acceso en línea:	https://www.redalyc.org/articulo.oa?id=251049988009
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

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Diferenciando grados de sofisticación epistémica durante la resolución de un problema de electrostática Andrea Perea Laura Buteler Enrique Coleoni Educación Electrostática Enseñanza superior Enseñanza de la física Epistemología personal Resolución de problemas El presente es un estudio en el cual se analizan las producciones de tres estudiantes de un curso universitario introductorio mientras resuelven un problema de electrostática. El objeto de estudio son las epistemologías personales, las cuales sirven a los estudiantes, y a los sujetos en general, para gestionar el propio conocimiento y posicionarse de maneras particulares frente a éste durante tareas cognitivas como la resolución de problemas. Se presenta un aporte de carácter teórico en relación al constructo de sofisticación epistémica. Se proveen elementos que permiten graduarla y tomarla como un indicador de la experticia de los sujetos en el plano epistémico. La importancia de los resultados radica en la posibilidad de visibilizar más la dimensión epistémica en el aprendizaje de la física. 2017 artículo científico 1516-7313 https://www.redalyc.org/articulo.oa?id=251049988009 es http://www.redalyc.org/revista.oa?id=2510 Ciência & Educação (Bauru) application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Ciência & Educação (Bauru) (Brasil) Num.1 Vol.23

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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