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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Heaven (Jay Z song)
"Heaven" is a song recorded by American rapper Jay-Z from his twelfth studio album Magna Carta Holy Grail (2013) featuring American recording artist Justin Timberlake. The song was written by Jay-Z, The-Dream, members of R.E.M., Adrian Younge, Timbaland, and Jerome "J-Roc" Harmon while the production was handled by the latter two. During the song, Jay-Z touches on subjects of religious allegory and an interrogation of organized religion. The song has since peaked at number 10 on the Billboard Bubbling Under Hot 100 Singles.
Background
On "Heaven", Jay-Z questions the meaning of religion and once again shoots down rumors that he is part of the secret organization Illuminati. He explained the song in a promotional video for Samsung saying,
The song indulges in religious allegory, and is one of the few songs on Magna Carta Holy Grail that touch upon existential and spiritual themes. Throughout the song he ponders faith, superstition and free thinking.
The songs features Jay-Z rapping a lyric of rock band, R.E.M.'s 1991 single "Losing My Religion". Following the album's release, former frontman of R.E.M. Michael Stipe told NME that he's "thrilled" and it was a "great honor", that Jay-Z included the lyrics in one of his songs.
Heaven (Los Lonely Boys song)
"Heaven" is the title of a popular song from 2004 by the American Tejano/Chicano rock band Los Lonely Boys. The song was written by brothers Henry, Jojo and Ringo Garza, who comprise the foundation of the band, and it appears on their multi-platinum self-titled album.
Reception
Released as a single in mid-2004, "Heaven" reached the Top 40 on the U.S. Billboard Hot 100 chart, peaking at 16 in August. Later that year, the song began a sixteen week run at number 1 on the Billboard Adult Contemporary chart in October. It was also a minor hit at country radio, where it peaked at number 46.
AllMusic reviewer Thom Jurek describes the song as "infectious" and draws comparisons to the music of Freddie King, Stevie Ray Vaughan and Los Lobos. He states that "Heaven" is "a single in the old sense of the word: killer hook, easy groove, a slippery but unmistakable bridge with a beautiful vocal to boot -- all coming in under four minutes."
Awards
The success of "Heaven" led to two Grammy Award nominations and one win for the band at the 47th Grammy Awards, held in early 2005. The song won in the category Best Pop Performance by a Duo group, while Los Lonely Boys were nominated in the category Best New Artist, losing out to Maroon 5.
Ailee
Amy Lee (Korean name: Lee Yejin; Hangul: 이예진; Hanja: 李藝眞, born May 30, 1989), better known by her stage name Ailee (Hangul: 에일리), is a Korean-American singer. She is signed under YMC Entertainment in South Korea and Warner Music in Japan. Dubbed the "Korean Beyonce", Ailee has been acclaimed by both those in the music industry and the general public with the "highest expectations for her debut", boasting of a charisma that takes over the stage as well as top vocal and sensational rap skills.
Ailee grew up in New Jersey, United States, and began her singing career as a YouTuber. Before her K-pop debut, Ailee was signed under Muzo Entertainment in America. After moving to South Korea in 2010, she passed an audition and became an artist for YMC Entertainment. After being recognized for her singing on Singer and Trainee, she also started acting in the KBS drama series Dream High 2 before her official debut. She has currently released three extended plays and one studio album.
Ailee has received the Best New Artist Award at the MelOn Music Awards, Golden Disk Awards, Gaon Chart K-Pop Awards and the Seoul Music Awards. She has also received Best Newcomer and three Best Female Vocal Performance at the Mnet Asian Music Awards for "U&I" , "Singing Got Better" and "Mind Your Own Business". For her work in Fated to Love You's OST, "Goodbye My Love", Ailee won Best Original Soundtrack at the 7th Korea Drama Awards.
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