Triad (anatomy)

In the histology of skeletal muscle, a triad is the structure formed by a T tubule with a sarcoplasmic reticulum (SR) known as the terminal cisterna on either side. Each skeletal muscle fiber has many thousands of triads, visible in muscle fibers that have been sectioned longitudinally. (This property holds because T tubules run perpendicular to the longitudinal axis of the muscle fiber.) In mammals, triads are typically located at the A-I junction; that is, the junction between the A and I bands of the sarcomere, which is the smallest unit of a muscle fiber.

Triads form the anatomical basis of excitation-contraction coupling, whereby a stimulus excites the muscle and causes it to contract. A stimulus, in the form of positively charged current, is transmitted from the neuromuscular junction down the length of the T tubules, activating dihydropyridine receptors (DHPRs). Their activation causes 1) a negligible influx of calcium and 2) a mechanical interaction with calcium-conducting ryanodine receptors (RyRs) on the adjacent SR membrane. Activation of RyRs causes the release of calcium from the SR, which subsequently initiates a cascade of events leading to muscle contraction. These muscle contractions are caused by calcium's bonding to troponin and unmasking the binding sites covered by the troponin-tropomyosin complex on the actin myofilament and allowing the myosin cross-bridges to connect with the actin.

Triad (sculpture)

Triad is an outdoor sculpture by German American artist Evelyn Franz, located in Laurelhurst Park in southeast Portland, Oregon.

Description and history

Originally completed in 1980 and remade in 2003, Triad was designed by Evelyn Franz, who received her Master of Fine Arts in Sculpture in 1976 from Portland State University. The abstract stainless steel sculpture was funded by CETA and is installed between Southeast 37th Avenue and Southeast Ankeny in Laurelhurst Park. According to the Regional Arts & Culture Council, which administers the work, it measures 7 feet (2.1 m), 5 inches (13 cm) x 5 feet (1.5 m), 5 inches (13 cm) x 2 feet (0.61 m), 5 inches (13 cm). The Smithsonian Institution lists the measurements as approximately 50 inches (130 cm) x 8 feet (2.4 m) x 2 feet (0.61 m). The sculpture contains no inscriptions and rests on a stainless steel base which measures approximately 16 inches (41 cm) x 80 inches (200 cm) x 30 inches (76 cm). It is part of the City of Portland and Multnomah County Public Art Collection courtesy of the Regional Arts & Culture Council.

Triad (film)

Triad (German:Dreiklang) is a 1938 German drama film directed by Hans Hinrich and starring Lil Dagover, Paul Hartmann and Rolf Mobius.

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Incognito (Spyro Gyra album)

Incognito is the sixth album by Spyro Gyra, released in 1982 (see 1982 in music).

Track listing and personnel

1. "Last Exit" (Tom Schuman) - 4:17

2. "Old San Juan" (Jay Beckenstein) - 6:41

3. "Harbor Nights" (Jay Beckenstein) - 4:22

4. "Stripes" (Jay Beckenstein) - 4:01

Incognito (Amanda Lear album)

Incognito is the fifth studio album by French singer Amanda Lear, released in 1981 by West German label Ariola Records. The album was a moderate chart success.

Background

After Diamonds for Breakfast, Amanda Lear wanted to record more music to her own taste. The singer teamed up with producer Trevor Horn and started recording a rock-influenced album in London, however, Ariola Records did not approve of the material and persuaded her to work on a new album with Anthony Monn. The Monn-produced material continued to depart from the disco music which by the early 1980s had lost its momentum, and instead explored new wave music. The track "New York" was originally recorded by Francis Lai and included on his 1980 album Paris - New York. "If I Was a Boy" is a cover of a song previously recorded by Italian singer Walter Foini, with new, English language lyrics written by Amanda.

Incognito is a concept album, with every song referring to a different "deadly sin", as imagined by Amanda, including two of the original seven deadly sins. Amanda elaborated in the liner notes: "Walking incognito behind my dark glasses in a future world not so far away I see the deadly sins. Fighting to survive (it is the law of the jungle) we meet with envy, violence, greed, fear, indifference and even bureaucracy and nostalgia, this favorite sin of mine which helps to accept the future". She would also quote "Hell is who (where) you really are" from Robert Sheckley. Most tracks on the side A are a non-stop medley, a formula previously used on the 1978 album Sweet Revenge. The album's title comes from the lyrics of the song "New York", which concludes the suite on the side A.

Incognito (band)

Incognito is a British acid jazz band. Their debut album, Jazz Funk, was released in 1981, with 15 more albums following, the latest of which, Amplified Soul, was released in June 2014.

The band's frontman, composer, record producer, guitarist and singer is Jean-Paul 'Bluey' Maunick. Other notable band members include or have included the singers Linda Muriel, Jocelyn Brown, Maysa Leak, Tony Momrelle, Imaani, Vanessa Haynes, Mo Brandis, Natalie Williams, Carleen Anderson, Pamela (PY) Anderson Kelli Sae (of Count Basic) and Joy Malcom.

History

Incognito was founded by Paul "Tubbs" Williams & Jean-Paul "Bluey" Maunick in 1979 as an off-shoot from Light of the World. LotW was a substantially sized group and as such, certain members wanted to go in different directions. The more commercially minded members formed Beggar & Co, whilst those wanting to develop a more jazz/funk-oriented sound formed Incognito. However, there has been a re-connection over the years in LotW with various former members, alongside their other commitments.