Epilogue

An epilogue or epilog (from Greek ἐπίλογος epílogos, "conclusion" from ἐπί- "in addition" and λέγειν légein, "to say") is a piece of writing at the end of a work of literature, usually used to bring closure to the work. It is presented from the perspective of within the story. When the author steps in and speaks indirectly to the reader, that is more properly considered an afterword. The opposite is a prologue—a piece of writing at the beginning of a work of literature or drama, usually used to open the story and capture interest.

In literature

An epilogue is the final chapter at the end of a story that often serves to reveal the fates of the characters. Some epilogues may feature scenes only tangentially related to the subject of the story. They can be used to hint at a sequel or wrap up all the loose ends. They can occur at a significant period of time after the main plot has ended. In some cases, the epilogue is used to allow the main character a chance to "speak freely".

An epilogue can continue in the same narrative style and perspective as the preceding story, although the form of an epilogue can occasionally be drastically different from the overall story. It can also be used as a sequel.

Time (Electric Light Orchestra album)

Time is the tenth studio album by British rock band Electric Light Orchestra (credited only as ELO) released in 1981 through Jet Records. It is a concept album which tells a story of a man from the 1980s finding himself in the year 2095 and trying to come to terms with being unable to return and adjusting to his new surroundings.

In 2001, the album was remastered and reissued on CD with three additional bonus tracks, two of which ("Julie Don't Live Here" and "When Time Stood Still") had already been released as B-sides of singles ("Twilight" and "Hold On Tight" respectively) from the original album, while the other ("The Bouncer") was originally released as the UK B-side of the 1983 single "Four Little Diamonds" from the follow-up album Secret Messages.

Musical style

While the two preceding ELO albums, Discovery and Xanadu, were heavily influenced by pop and disco, Time is much closer to ELO's roots of progressive rock music. Songs like "Ticket to the Moon", "The Way Life's Meant to Be", "Rain Is Falling", and "21st Century Man" are reminiscent of material from the peak era of ELO, which produced albums such as A New World Record and Out of the Blue; while other tracks explore new influences such as new wave ("Twilight", "Yours Truly, 2095", "Another Heart Breaks", "From the End of the World", and "Here Is the News"), reggae ("The Lights Go Down"), and rockabilly ("Hold On Tight") with the core ELO sound.

Epilogue (TV series)

Epilogue is a televised book review show hosted alternately by Ken Livingstone (Former Mayor of London) and Derek Conway MP. It is on the international television network Press TV. The first series was transmitted on 2 November 2001 and the show is now in its second series. The programme features Livingstone and Conway’s take on selected political books and current affairs, with expert guests also on the panel (usually 2 per show). The show opens with a short video introduction to the book under review.

Helix

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".

Types

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

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.

Performance

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:

Helix

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 (multimedia project)

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.

Licenses

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.