Call of Duty: Black Ops

Call of Duty: Black Ops is a 2010 first-person shooter video game. The game was developed by Treyarch, published by Activision, and released worldwide on November 9, 2010 for Microsoft Windows, PlayStation 3, Xbox 360, and Wii consoles, with a separate version for Nintendo DS developed by n-Space. Announced on April 30, 2010, the game is the seventh installment of the Call of Duty series. It is also the first to be set in the Cold War and the fifth to be set in World War II. It is the third in the series to be developed by Treyarch, and is the sequel to Call of Duty: World at War.

Within 24 hours of going on sale, the game had sold more than 5.6 million copies, 4.2 million in the U.S. and 1.4 million in the UK, breaking the record set by its predecessor Modern Warfare 2 by some 2.3 million copies. After six weeks on release, Activision reported that Black Ops had exceeded $1 billion in sales. On August 3, 2011, Activision confirmed that the game had sold over 25 million copies worldwide, making it one of the best-selling games of all time in the US, UK and Europe. A sequel, Call of Duty: Black Ops II, was released on November 13, 2012.Call of Duty: Black Ops III was announced on April 9, 2015 as the fourth installment in the Black Ops series and was revealed on April 26, 2015 and released on November 6, 2015.

Nova

A nova (plural novae or novas) is a cataclysmic nuclear explosion on a white dwarf, which causes a sudden brightening of the star. Novae are not to be confused with other brightening phenomena such as supernovae or luminous red novae. Novae are thought to occur on the surface of a white dwarf in a binary system when they are sufficiently near to one another, allowing material (mostly hydrogen) to be pulled from the companion star's surface onto the white dwarf. The nova is the result of the rapid fusion of the accreted hydrogen on the surface of the star, commencing a runaway fusion reaction.

Development

The development begins with two main sequence stars in a binary relation. One of the two evolves into a red giant leaving its remnant white dwarf core in orbit with the remaining star. The second star—which may be either a main sequence star, or an aging giant one as well—begins to shed its envelope onto its white dwarf companion when it overflows its Roche lobe. As a result, the white dwarf will steadily accrete matter from the companion's outer atmosphere; the white dwarf consists of degenerate matter, so the accreted hydrogen does not inflate as its temperature increases. Rapid, uncontrolled fusion occurs when the temperature of this accreted layer reaches ~20 million kelvin, initiating a burn via the CNO cycle.

OpenStack

OpenStack is a free and open-source software platform for cloud computing, mostly deployed as an infrastructure-as-a-service (IaaS). The software platform consists of interrelated components that control hardware pools of processing, storage, and networking resources throughout a data center. Users either manage it through a web-based dashboard, through command-line tools, or through a RESTful API. OpenStack.org released it under the terms of the Apache License.

OpenStack began in 2010 as a joint project of Rackspace Hosting and NASA. As of 2016 it is managed by the OpenStack Foundation, a non-profit corporate entity established in September 2012 to promote OpenStack software and its community. More than 500 companies have joined the project, including AppFormix, Arista Networks, AT&T, AMD, Avaya, Brocade, Canonical, Cisco, Citrix, Comcast, Cray, Dell, Dreamhost, EMC, Ericsson, Fujitsu, Go Daddy, Google, Hewlett-Packard, Hitachi Data Systems, Huawei, IBM, Intel, Internap, Juniper Networks, Mellanox, Mirantis, NEC, NetApp, Nexenta, OpenIO, Oracle, OVH, PLUMgrid, Pure Storage, Qosmos, Red Hat, Solidfire, SUSE, VMware, VMTurbo and Yahoo!.

Nova (eikaiwa)

Nova (formerly Nova Group) is a large eikaiwa school (private English teaching company) in Japan. It was by far the largest company of this type until its widely publicized collapse in October 2007. Before its bankruptcy, Nova employed approximately 15,000 people across a group of companies that supported the operations of and extended out from the "Intercultural Network" of its language schools. The scope of its business operations reached its peak in February 2007 following a rapid expansion of its chain to 924 Nova branches plus a Multimedia Center located in Osaka.

Nova, known for high-priced lesson packages, and later plagued by lawsuits and negative publicity, began to decline in earnest almost immediately after the Ministry of Economy, Trade and Industry placed a six-month ban against soliciting new long-term contracts from students on the company on 13 June 2007. The impending financial crisis facing Nova related to a rapid increase in refund claims, significant drops in sales figures, and deterioration of its reputation, came to the fore in September 2007 when Nova began to delay payment of wages and bonuses to staff. The NAMBU Foreign Workers Caucus in Tokyo estimated that up to 3,000 staff had not received their salaries on time. A solution for Nova's failure to pay wages was promised by 19 October in a fax sent to branch schools. On 23 October the Osaka Labor Standards office accepted a demand by unionized Nova instructors to investigate criminal charges against Nova President and founder, Nozomu Sahashi, over delayed and unpaid wages, but Sahashi was ultimately not charged.