01100nam0 2200289 450 00004157620150916112347.0978-2-81000-524-620150916d2013----km-y0itaa50------bafreFR<<Le>> Déclinla crise de l'Union européenne et la chute de la République romaine-quelques analogies historiquesDavid Engels2. ed. revue par l'auteurParisÉditions du Toucan2013377 p.ill.23 cm.Europastoriastudi comparativiRomapolitica e governo264-30 a.C.320.9(22. ed.)Scienza politica. Situazione e condizioni politicheEngels,David600583ITUniversità della Basilicata - B.I.A.REICATunimarc000041576Déclin1531078UNIBASLETTERESTD1060120150916BAS011123BAS01BAS01BOOKBASA1Polo Storico-UmanisticoDIDDidatticaFM/113987113987L1139872015091604Prestabile Didattica03798nam 2200433 a 450 991070349880332120121031112245.01-4581-7626-6(CKB)5470000001252787(OCoLC)815523252(BIP)034829623(EXLCZ)99547000000125278720121031d2011 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierNASA's management of the Mars science laboratory project[Washington, D.C.] :Office of Audits, Office of Inspector General, National Aeronautics and Space Administration,[2011]1 online resource (ix, 37 pages) color illustrationsAudit report"June 8, 2011.""Report No. IG-11-019.""(Assignment No. A-10-007-00)."Title from title screen (viewed on Oct. 31, 2012).Includes bibliographical references.NASA's Office of Inspector General issued this status report on the Mars Science Laboratory (MSL) slated for launch in late 2011. The Mars Science Laboratory (MSL), part of the Science Mission Directorates Mars Exploration Program (Mars Program), is the most technologically challenging interplanetary rover ever designed. This NASA flagship mission, whose life-cycle costs are currently estimated at approximately 2.5 billion, will employ an array of new technologies to adjust its flight while descending through the Martian atmosphere, including a sky crane touchdown system that will lower the rover on a tether to the Martian surface.The report states: Project managers expected to complete integration of equipment by May 2011 and ship MSL to Kennedy for flight preparation by June 2011. However, of the ten issues Project managers identified as contributing to the launch delay, as of March 2011 three remained unresolved: contamination of rock and soil samples collected by the Sample Acquisition/Sample Processing and Handling (SA/SPaH) subsystem and development of flight software and the fault protection systems. The resolution of these and other issues that may arise during final integration is likely to strain the already limited margin managers built into the Projects schedule to allow for unanticipated delays. Moreover, since November 2009 this schedule margin has been decreasing at a rate greater than planned. Fault protection enables an instrument or system that does not operate as expected to operate at a reduced level rather than fail completely. In addition, approximately 1,200 reports of problems and failures observed by Project personnel remained open as of February 2011. If these reports are not resolved prior to launch, there is a possibility that an unknown risk could materialize and negatively affect mission success. Finally, since the 2009 decision to delay launch, the Project has received three budget increases, most recently an infusion of 71 million in December 2010. However, in our judgment because Project managers did not adequately consider historical cost trends when estimating the amount required to complete development, we believe the Project may require additional funds to meet the 2011 scheduled launch date.NASA's Management of the Mars Science Laboratory Project Astronautical laboratoriesUnited StatesManagementOuter spaceExplorationEquipment and suppliesAstronautical laboratoriesManagement.Management Progressive1432418GPOGPOBOOK9910703498803321NASA's management of the Mars science laboratory project3577137UNINA