" Wallpaper " is the term used in Microsoft Windows before Windows Vista ( where it is called the Desktop " Background "), while Mac OS X calls it a " desktop picture " ( previously, the term desktop pattern was used to refer to a small pattern that was repeated to fill the screen ).

* Background ( or BG ) sound effects are sounds that do not explicitly synchronize with the picture, but indicate setting to the audience, such as forest sounds, the buzzing of fluorescent lights, and car interiors.

Background material is available at.

# Background frequency of exposure to tuberculosis: In one hypothesis, in areas with high levels of background exposure to tuberculosis, every susceptible individual is already exposed prior to BCG, and the natural immunizing effect of background tuberculosis duplicates any benefit of BCG.

Background radiation is the ionizing radiation constantly present in the natural environment of the Earth, which is emitted by natural and artificial sources.

Graph of cosmic microwave background spectrum measured by the FIRAS instrument on the Cosmic Background Explorer | COBE, the most-precisely measured black body spectrum in nature, the standard error of estimation | error bars are too small to be seen even in enlarged image, and it is impossible to distinguish the observed data from the theoretical curve

The most famous experiment is probably the NASA Cosmic Background Explorer ( COBE ) satellite that orbited in 1989 – 1996 and which detected and quantified the large scale anisotropies at the limit of its detection capabilities.

Iain M. Banks references this in his novel Against a Dark Background, when a character claims that the word onomatopoeia is spelled " just the way it sounds!

Steiner states that the sole original source to claim that he did join a church – in Hudson, New York – is Vernon B. Hampton, in Religious Background of the White House ( Boston: Christopher Publishing House, 1932 ), the basis of which Steiner was unable to verify.

Cosmic Microwave Background Radiation ( CMBR ) from outer space, discovered by Arno Penzias and Robert Wilson, who later won the Nobel Prize for this discovery, is also a form of cosmic noise.

Against a Dark Background is a science fiction novel by Scottish writer Iain M. Banks, first published in 1993.

The hunt for the eighth and final Lazy Gun is the main plot theme of Against a Dark Background.

* Background information is given of Akass — the readers learn that he is involved with Emir Ben Kalish Ezab, an idea not pursued fully in the story.

The National Instant Criminal Background Check System, used to screen individuals attempting to receive a firearm, is operated from the facility.

Amnesty International notes that China “ has the largest recorded number of imprisoned journalists and cyber-dissidents in the world .” The offences of which they are accused include communicating with groups abroad, signing online petitions, and calling for reform and an end to corruption .< ref >< nowiki > http :// www. internetfreedom. org / Background </ nowiki > Background Global Internet Freedom Consortium ( do not download anything from this site – it is a known Trojan supplier )</ ref > The escalation of the government's effort to neutralize critical online opinion comes after a series of large anti-Japanese, anti-pollution, anti-corruption protests, and ethnic riots, many of which were organized or publicized using instant messaging services, chat rooms, and text messages.

“ Background information of the sort we provided is both appropriate and routine for any sophisticated subject of media coverage, and particularly where the mission includes earning and retaining the hearts and minds of the local populace and maintaining the support of the international community, failing to measure the effectiveness of one's past efforts and statements undermines the mission .”

Background music is composed by James Newton Howard.

About half of the research of the group is in the area of radio astronomy — including research into pulsars, the Cosmic Microwave Background Radiation, gravitational lenses, active galaxies and astrophysical masers.

While astronomers are confident of the velocity of the LS, which has been measured against the Cosmic Microwave Background ( CMB ), the nature of what is causing it remains poorly understood.

There is discussion of Glanvill's thought and method in Basil Willey's Seventeenth Century Background ( 1934 ).

The Wilkinson Microwave Anisotropy Probe ( WMAP ) – also known as the Microwave Anisotropy Probe ( MAP ), and Explorer 80 – is a spacecraft which measures differences in the temperature of the Big Bang's remnant radiant heat – the Cosmic Microwave Background Radiation – across the full sky.

The WMAP objective is to measure the temperature differences in the Cosmic Microwave Background ( CMB ) radiation.

Background hiss in an analog mixer is always present, though good gain stage management minimizes its audibility.

* Background JSP compilation-While recompiling modified JSP Java code, the older version is still available for server requests.

Full-sky image of Cosmic Microwave Background as seen by the Wilkinson Microwave Anisotropy Probe.

Background projection throws the background image on a screen behind the subjects in the foreground while the camera makes a composite by photographing both at once.

Background image: The Wright brothers stand beside their Flyer II, near Dayton, Ohio.

Background image: Boy Scouts participate in a patriotic " Wake Up America " rally on New York City's Fifth Avenue.

Background image: Members of a dance troupe strike poses from the Charleston on a California beach during a break in the filming of a movie in 1926.

Background image: A farmer and two sons flee a dust storm in Cimarron County, Oklahoma in April 1936.

Background image: A landing party of United States Marines storm a beach on Saipan, a Japanese stronghold in the Mariana Islands in 1944.

Background image: Family in front of a television set.

Background image: Astronaut Buzz Aldrin sets up seismic equipment to record lunar tremors.

Background image: Ships gather in New York Harbor under the Statue of Liberty to take part in Bicentennial celebrations, July 4, 1976, marked the 200th birthday of the United States.

Background image: The space shuttle Columbia is launched 27 June 1982 on its fourth mission.

Background image: Image of currency superimposed by a graph of the rising economy.

# Background image.

The Background colour indicates the party of the sitting MP at any given year.

The Background colour indicates the party of the sitting MP at any given year.

The Background colour indicates the party of the sitting MP at any given year.

* Background process, software that is running but not being displayed

Background noise is an unhelpful feature of observed spectra as represented in the jagged baseline of the displayed spectrum.