Trance

Trance denotes any state of awareness or consciousness other than normal waking consciousness. Trance states may occur involuntarily and unbidden.

The term trance may be associated with hypnosis, meditation, magic, flow, and prayer. It may also be related to the earlier generic term, altered states of consciousness, which is no longer used in "consciousness studies" discourse.

Etymology

Trance in its modern meaning comes from an earlier meaning of "a dazed, half-conscious or insensible condition or state of fear", via the Old French transe "fear of evil", from the Latin transīre "to cross", "pass over". This definition is now obsolete.

Working models

Wier, in his 1995 book, Trance: from magic to technology, defines a simple trance (p. 58) as a state of mind being caused by cognitive loops where a cognitive object (thoughts, images, sounds, intentional actions) repeats long enough to result in various sets of disabled cognitive functions. Wier represents all trances (which include sleep and watching television) as taking place on a dissociated trance plane where at least some cognitive functions such as volition are disabled; as is seen in what is typically termed a 'hypnotic trance'. With this definition, meditation, hypnosis, addictions and charisma are seen as being trance states. In Wier's 2007 book, The Way of Trance, he elaborates on these forms, adds ecstasy as an additional form and discusses the ethical implications of his model, including magic and government use which he terms "trance abuse".

Trance (Steve Kuhn album)

Trance is an album by American jazz pianist and composer Steve Kuhn recorded in 1974 and released on the ECM label.

Reception

The Allmusic review by Thom Jurek awarded the album 4 stars stating "This is jazz that touches on fusion, modal, and the new spirit of the music as ECM came into the 1970s as a player. There is restlessness and calm, tempestuousness and serenity, conflict and resolution, and -- above all -- creativity and vision".

Track listing

Personnel

References

Standing Stone (album)

Standing Stone is Paul McCartney's second full-length release of original classical music (coming after 1991's Liverpool Oratorio) and was issued shortly after Flaming Pie's release in 1997. The world premiere performance was held at The Royal Albert Hall on 14 October 1997.

History

Following up on 1991's Paul McCartney's Liverpool Oratorio, the Standing Stone project was composed out of a long poem McCartney authored and was performed by the London Symphony Orchestra and conducted by Lawrence Foster at EMI's Abbey Road Studios. Unlike Liverpool Oratorio, this new project is not an operatic performance of a story, but an instrumental one, though it employs the use of a choir.

The cover for the album is actually one of the many photos taken by Linda McCartney during late 1969/early 1970 that would initially be seen on the inside gatefold cover of Paul's first album McCartney. Incidentally, this project was her husband's last release before Linda died of breast cancer on 17 April 1998, having been diagnosed almost three years earlier.

Quartz (graphics layer)

In Apple computer's OS X operating system, Quartz is the Quartz 2D and Quartz Compositor part of the Core Graphics framework. Quartz includes both a 2D renderer in Core Graphics and the composition engine that sends instructions to the graphics card. Because of this vertical nature, Quartz is often synonymous with Core Graphics.

In a general sense, Quartz or Quartz technologies can refer to almost every part of the Mac OS X graphics model from the rendering layer down to the compositor including Core Image and Core Video. Other Apple graphics technologies that use the "Quartz" prefix include:

Quartz 2D & Quartz Compositor

Quartz 2D is the primary two-dimensional (2D) text and graphics rendering library: It directly supports Aqua by displaying two-dimensional graphics to create the user interface, including on-the-fly rendering and anti-aliasing. Quartz can render text with sub-pixel precision; graphics are limited to more traditional anti-aliasing, which is the default mode of operation but can be turned off. In Mac OS X v10.4, Apple introduced Quartz 2D Extreme, which allows Quartz 2D to use supported GPUs for rendering. In Mac OS X 10.4, Quartz 2D Extreme is not enabled by default, because it may lead to video redraw issues or kernel panics. As of Mac OS X v10.5 Quartz 2D Extreme has been renamed to QuartzGL. However, it still remains disabled by default, as there are some situations where it can degrade performance, or experience visual glitches; it is a per-application setting which can be turned on if the developer wishes.

Crystal oscillator

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency. This frequency is commonly used to keep track of time, as in quartz wristwatches, to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers. The most common type of piezoelectric resonator used is the quartz crystal, so oscillator circuits incorporating them became known as crystal oscillators, but other piezoelectric materials including polycrystalline ceramics are used in similar circuits.

Quartz crystals are manufactured for frequencies from a few tens of kilohertz to hundreds of megahertz. More than two billion crystals are manufactured annually. Most are used for consumer devices such as wristwatches, clocks, radios, computers, and cellphones. Quartz crystals are also found inside test and measurement equipment, such as counters, signal generators, and oscilloscopes.

Quartz (scheduler)

Quartz is a job scheduling library that can be integrated into a wide variety of Java applications.

Quartz is generally used for enterprise class applications to support process workflow, system management (maintenance) actions and to provide timely services within the applications. Quartz also supports clustering.

Quartz is an open-source product from the Terracotta company.

There is also a port to .NET, called Quartz.NET.

External links