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Autor principal:	Julio Espinoza Avalos
Formato:	Artículo científico
Lenguaje:	en
Publicado:	Universidad Autónoma de Baja California 1996
Materias:	Ciencias de la Tierra size Mexico Gelidium carposporic tetrasporic
Acceso en línea:	https://www.redalyc.org/articulo.oa?id=48022402
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

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Estructura de tallas y reproducción de Gelidium robusturn (RHODOPHYTA) en la parte central de la península de Baja California, México Julio Espinoza Avalos Ciencias de la Tierra size Mexico Gelidium carposporic tetrasporic The size structure and reproduction of Gelidium robustum were studied at Punta San Hipolito at6 m depth, and at Isla Natividad at 8 and I5 m depth. Both sites are located on the Pacific coast ofBaja California Sur, Mexico. Vegetative reproduction was greater, but average frond size was smallerat the two shallow sites than at I5 m. The degree of reproduction by sporophytes was directly relatedto frond size and occurred year-round. Tetrasporic fronds outnumbered carposporic ones. Carposporicfronds were less abundant at I5 m depth than at 6 and 8 m, and were shorter, on average, than tetrasporicfronds at all sites. The minimum reproductive size was also smaller for carposporic fronds thanfor tetrasporic fronds. The minimum reproductive size of tetrasporic fronds was smaller at Punta SanHipolito (7.4 cm), followed by Isla Natividad 8-m fronds (16.5 cm) and Isla Natividad 15-m fronds(22.8 cm). It is thought that maintaining the rhizoidal part of a plant with the associated juvenilefronds (less than IO cm in length) is very important for the recovery of a bed after harvesting. 1996 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48022402 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.4 Vol.22

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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