Amerika may refer to:
Amerika – suggesting a Russified name for the United States – is an American television miniseries that was broadcast in 1987 on ABC. The miniseries inspired a novelization entitled Amerika: The Triumph of the American Spirit. Amerika starred Kris Kristofferson, Mariel Hemingway, Sam Neill, Robert Urich, and a 17-year-old Lara Flynn Boyle in her first major role. Amerika was about life in the United States after a bloodless takeover engineered by the Soviet Union. Not wanting to depict the actual takeover, ABC Entertainment president Brandon Stoddard set the miniseries ten years after the event, focusing on the demoralized American people a decade after the Soviet conquest. The intent, he later explained, was to explore the American spirit under such conditions, not to portray the conflict of the Soviet coup.
Described in promotional materials as "the most ambitious American miniseries ever created," Amerika aired for 14½ hours (including commercials) over seven nights (beginning February 15, 1987), and reportedly cost US$40 million to produce. The miniseries was filmed in the Golden Horseshoe and southwestern Ontario Canadian cities of Toronto, London, and Hamilton, as well as various locations in the U.S. state of Nebraska – most notably the small town of Tecumseh, which served as "Milford," the fictional setting for most of the series. Donald Wrye was the executive producer, director, and writer of Amerika, while composer Basil Poledouris scored the miniseries, ultimately recording (with the Hollywood Symphony Orchestra) eight hours of music – the equivalent of four feature films.
Amerika is a hamlet in the Netherlands. It is part of the village of Een, in the Noordenveld municipality in Drenthe. Amerika has an elevation of 4 metres (13 feet) +NAP.
Just north of the hamlet is the recreational ground Ronostrand, a swimming pool from an old sand mine.
The village name is older than the name of the continent of America.
Coordinates: 53°5′30″N 6°22′15″E / 53.09167°N 6.37083°E / 53.09167; 6.37083
A helix (pl: helixes or helices) is a type of smooth space curve, i.e. a curve in three-dimensional space. It has the property that the tangent line at any point makes a constant angle with a fixed line called the axis. Examples of helices are coil springs and the handrails of spiral staircases. A "filled-in" helix – for example, a spiral ramp – is called a helicoid. Helices are important in biology, as the DNA molecule is formed as two intertwined helices, and many proteins have helical substructures, known as alpha helices. The word helix comes from the Greek word ἕλιξ, "twisted, curved".
Helices can be either right-handed or left-handed. With the line of sight along the helix's axis, if a clockwise screwing motion moves the helix away from the observer, then it is called a right-handed helix; if towards the observer, then it is a left-handed helix. Handedness (or chirality) is a property of the helix, not of the perspective: a right-handed helix cannot be turned to look like a left-handed one unless it is viewed in a mirror, and vice versa.
Phelix is a high-speed stream cipher with a built-in single-pass message authentication code (MAC) functionality, submitted in 2004 to the eSTREAM contest by Doug Whiting, Bruce Schneier, Stefan Lucks, and Frédéric Muller. The cipher uses only the operations of addition modulo 232, exclusive or, and rotation by a fixed number of bits. Phelix uses a 256-bit key and a 128-bit nonce, claiming a design strength of 128 bits. Concerns have been raised over the ability to recover the secret key if the cipher is used incorrectly.
Phelix is optimised for 32-bit platforms. The authors state that it can achieve up to eight cycles per byte on modern x86-based processors.
FPGA Hardware performance figures published in the paper "Review of stream cipher candidates from a low resource hardware perspective" are as follows:
Phelix is a slightly modified form of an earlier cipher, Helix, published in 2003 by Niels Ferguson, Doug Whiting, Bruce Schneier, John Kelsey, Stefan Lucks, and Tadayoshi Kohno; Phelix adds 128 bits to the internal state.
Helix DNA is a project to produce computer software that can play audio and video media in various formats, aid in producing such media, and serve them over a network. It is intended as a largely free and open source digital media framework that runs on numerous operating systems and processors (including mobile phones) and was started by RealNetworks which contributed much of the code. The Helix Community is an open collaborative effort to develop and extend the Helix DNA platform.
Helix DNA Client is a software package for multi-platform multi-format media playback. Helix Player is a media player that runs on Linux, Solaris, Symbian and FreeBSD and uses the Helix DNA Client. The Helix DNA Producer application aids in the production of media files, and Helix DNA Server can stream media files over a network.
The code is released in binary and source code form under various licenses, notably the proprietary RealNetworks Community Source License and the free and open source software RealNetworks Public Source License. Additionally, the Helix DNA Client and the Helix Player are licensed under the popular GNU General Public License (GPL) free and open source license.