SOS

SOS is the international Morse code distress signal (· · · – – – · · ·). This distress signal was first adopted by the German government in radio regulations effective April 1, 1905, and became the worldwide standard under the second International Radiotelegraphic Convention, which was signed on November 3, 1906, and became effective on July 1, 1908. SOS remained the maritime radio distress signal until 1999, when it was replaced by the Global Maritime Distress and Safety System. SOS is still recognized as a visual distress signal.

The SOS distress signal is a continuous sequence of three dits, three dahs, and three dits, all run together without letter spacing. In International Morse Code, three dits form the letter S, and three dahs make the letter O, so "SOS" became an easy way to remember the order of the dits and dahs. In modern terminology, SOS is a Morse "procedural signal" or "prosign", and the formal way to write it is with a bar above the letters: SOS.

In popular usage, SOS became associated with such phrases as "Save Our Ship" or "Save Our Souls" or "Send Out Succour". SOS is only one of several ways that the combination could have been written; VTB, for example, would produce exactly the same sound, but SOS was chosen to describe this combination. SOS is the only nine-element signal in Morse code, making it more easily recognizable, as no other symbol uses more than eight elements.

21st Special Operations Squadron

The 21st Special Operations Squadron is a unit within the 352d Special Operations Group (352 SOG), United States Air Force, United States European Command, and was based at Royal Air Force base RAF Mildenhall in Suffolk, eastern England.

Mission

The 21st Special Operations Squadron, which fell under the 352nd Special Operations Group, RAF Mildenhall, UK, was inactivated on 31 October 2007 with the inactivation ceremony taking place at RAF Mildenhall, UK on 9 October temporarily ending the Air Force Special Operations vertical lift mission in Europe.

The inactivation of the Dust Devils was the first step in preparation for the arrival of the CV-22 tilt-rotor aircraft.

The 21st Special Operations Squadron's mission consisted of day or night, all-weather, low-level penetration of denied territory to provide infiltration, exfiltration, resupply, or fire support for elite air, ground, and naval forces. The unique capabilities of the MH-53J permitted the squadron to operate from unprepared landing zones.

1st Special Operations Squadron

The 1st Special Operations Squadron (1 SOS) is part of the 353d Special Operations Group at Kadena Air Base, Japan. It operates MC-130 Combat Talon II aircraft providing special operations capability. Air crews are trained in night low-level flying, using night vision goggles.

Mission

To deliver troops and equipment into denied areas during adverse weather conditions at night by airdrop or landing.

History

The 1st conducted gunnery testing and training from 1939–1942. It flew administrative airlift from 1949–1952 and 1953–1954.

The 1st flew combat missions in Southeast Asia from 8 July 1963 – 7 November 1972 and 15 December 1972 – 28 January 1973. It also trained Vietnamese Air Force pilots in counter-insurgency operations from, July 1963 – November 1972. It acquired the Combat Talon mission from the redesignated 90th Tactical Fighter Squadron on 15 December 1972. Three MC-130 Combat Talons from the 1st SOS led the Night One mission of Operation Eagle Claw, the hostage rescue mission in Iran, in April 1980.

Disc Description Protocol

Disc Description Protocol (DDP) is a format for specifying the content of optical discs, including CDs and DVDs.

DDP is commonly used for delivery of disc premasters for duplication. DDP is a proprietary format and is the property of DCA. The file format specification is not freely available.

The DDP must contain 4 parts:

An optional text file can also be included, this will contain the track titles and timings.

Software

PC:

Mac:

Honeywell 316

The Honeywell 316 was a popular 16-bit minicomputer built by Honeywell starting in 1969. It is part of the Series 16 which includes the Models 116, 316, 416, 516 and 716. They were commonly used for data acquisition and control, remote message concentration, clinical laboratory systems and time-sharing. The Series 16 computers are all based on the DDP-116 designed by Gardner Hendrie at Computer Control Company, Inc. (3C) in 1964.

The H-316 was used by Charles H. Moore to develop the first complete, stand-alone implementation of Forth at NRAO. They were used as ARPANET Interface Message Processors (IMP) but could also be configured as a Terminal IMP (TIP) which added support for up to 63 Teletype machines through a multi-line controller.

The original Prime computers were designed to be compatible with the Series 16 minicomputers.

The Honeywell 316 also had industrial applications. A 316 was used at Bradwell nuclear power station in Essex as the primary reactor temperature monitoring computer until summer 2000, when the internal 160k disk failed. Two PDP-11/70s, which had previously been secondary monitors, were moved to primary.

TIMM8A

Mitochondrial import inner membrane translocase subunit Tim8 A is an enzyme that in humans is encoded by the TIMM8A gene.

This translocase has similarity to yeast mitochondrial proteins that are involved in the import of metabolite transporters from the cytoplasm into the mitochondrial inner membrane. The gene is mutated in Deafness-dystonia syndrome (or Mohr-Tranebjaerg syndrome; MTS/DFN-1) and it is postulated that MTS/DFN-1 is a mitochondrial disease caused by a defective mitochondrial protein import system.

Alternative names

Interactions

TIMM8A has been shown to interact with Signal transducing adaptor molecule and TIMM13.

References

Further reading

External links