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Autore principale:	Gonzalo Martín Rodríguez
Natura:	Artículo científico
Lingua:	es
Pubblicazione:	Universidad Nacional del Nordeste 2024
Soggetti:	Estudios Territoriales Áreas suburbanas barrios privados migración interna
Accesso online:	https://www.redalyc.org/articulo.oa?id=369278192008 https://www.redalyc.org/journal/3692/369278192008/ https://www.redalyc.org/journal/3692/369278192008/html/ https://www.redalyc.org/journal/3692/369278192008/369278192008.epub https://www.redalyc.org/journal/3692/369278192008/movil https://doi.org/10.30972/crn.37377523
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Sommario:

La suburbanización de las élites en el área metropolitana de Buenos Aires (1975 – 2010). Nuevas evidencias a partir de estadísticas migratorias Gonzalo Martín Rodríguez Florencia Molinatti Estudios Territoriales Áreas suburbanas barrios privados migración interna El trabajo propone revisitar la tesis de Horacio Torres sobre la suburbanización de las élites en el Área Metropolitana de Buenos Aires (AMBA) durante la última década del siglo XX, un proceso que se asume como estrechamente vinculado con la proliferación de urbanizaciones cerradas en la periferia, y al que el autor consideró “tardío” en relación con lo ocurrido en otras grandes ciudades del continente. A partir del procesamiento de bases de microdatos de censos históricos argentinos, encontramos que la suburbanización de las élites en el AMBA en los noventa, si bien existió, no fue tan tardía o novedosa como se ha creído hasta el momento. Los datos de migraciones internas recientes sugieren que hubo una primera suburbanización temprana durante la última dictadura cívico-militar a fines de la década del setenta. Esta primera migración del centro a la periferia tuvo características distintivas respecto de la suburbanización posterior de los noventa. 2024 artículo científico 1666-6186 https://www.redalyc.org/articulo.oa?id=369278192008 https://www.redalyc.org/journal/3692/369278192008/ https://www.redalyc.org/journal/3692/369278192008/html/ https://www.redalyc.org/journal/3692/369278192008/369278192008.epub https://www.redalyc.org/journal/3692/369278192008/movil https://doi.org/10.30972/crn.37377523 es http://www.redalyc.org/revista.oa?id=3692 CUADERNO URBANO. Espacio, cultura, sociedad application/pdf Universidad Nacional del Nordeste CUADERNO URBANO. Espacio, cultura, sociedad (Argentina) Num.37 Vol.37

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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