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1. Verfasser:	João Gualberto Rocha Coutinho
Format:	Artículo científico
Sprache:	pt
Veröffentlicht:	Associação Nacional de Pós-Graduação e Pesquisa em Administração 2003
Schlagworte:	Administración y Contabilidad análise de projetos processos decisórios concessão de rodovias financiamento a projetos
Online-Zugang:	https://www.redalyc.org/articulo.oa?id=84070108
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

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Análise do processo decisório para seleção de rodovias a serem pedagiadas no Brasil João Gualberto Rocha Coutinho Rosângela Maria Vanalle Administración y Contabilidad análise de projetos processos decisórios concessão de rodovias financiamento a projetos O presente artigo procura apresentar o processo de decisão para seleção das rodovias integrantes damalha viária brasileira, que estão sendo submetidas ao regime de concessão à iniciativa privada, pormeio de sua exploração pela cobrança de pedágio. A análise do processo mostra que o instrumentobásico para seleção dos trechos considerados viáveis tem sido a avaliação dos empreendimentos sobo enfoque de project financing, cujo indicador de viabilidade é o grau de cobertura do serviço dadívida a ser contraída para realização dos investimentos programados. Na medida em que o projectfinancing é um instrumento parcial de indicação de viabilidade e prioridade econômica, o artigo, nofinal, propõe um modelo mais abrangente para as tomadas futuras de decisão, em especial porque oprograma nacional de concessões de rodovias está ainda em boa parte por se realizar. 2003 artículo científico 1415-6555 https://www.redalyc.org/articulo.oa?id=84070108 pt http://www.redalyc.org/revista.oa?id=840 RAC - Revista de Administração Contemporânea application/pdf Associação Nacional de Pós-Graduação e Pesquisa em Administração RAC - Revista de Administração Contemporânea (Brasil) Num.1 Vol.7

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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