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.

Luornu Durgo

Triplicate Girl (Luornu Durgo) is a fictional character, a superhero in the 30th and 31st centuries of the DC Comics Universe and a member of the Legion of Super-Heroes. She has also had the aliases Duo Damsel, Triad, Una, Duplicate Damsel and Duplicate Girl and was ranked 33rd in Comics Buyer's Guide's 100 Sexiest Women in Comics list.

Fictional character biography

Original continuity

Luornu Durgo, codenamed Triplicate Girl, first appeared in Action Comics #276, written by Jerry Siegel. A native of the planet Cargg, she could split into three identical bodies, as could all Carggites, due to the planet Cargg having three suns. Her costume consisted of a purple dress, orange cape and belt, and black boots.

She was the fourth hero to join the Legion of Super-Heroes, and its first non-founder member. Unlike her post-Zero Hour counterpart, Triad, she had brown eyes, not split purple/orange ones. For a long time, she had an unrequited crush on Superboy.

One of her three bodies was killed by Brainiac 5's killer creation Computo The Conqueror (a rogue computer) early on, and she was thereafter known as Duo Damsel. Her surviving two bodies continued to remember the trauma of experiencing her/their death, with the result that Computo was the one villain whom Duo Damsel was too frightened to confront.

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.

Khan!

Khan! is an American television detective series. Set in San Francisco, it is named after the central character, a Chinese-American detective, played by Khigh Dhiegh. Evan C. Kim and Irene Yah-Ling Sun are featured as his relatives. Four episodes were aired in February 1975 on CBS. Dhiegh is best known for his portrayal of the Chinese spy Wo Fat on Hawaii Five-O from 1968 to 1980.

In an unusual move, Dhiegh insisted on having no onscreen billing for his role, despite playing the title character. In an interview to promote the show, he stated, "To be made the focal point of attention is something that disturbs me greatly. After all, we must remember it is not me, the individual, that is important. That is why I have told CBS I want no credits for the series. The goal is not to make any one person a star, but to create something that is good for all."

Episode list

References

External links

Khan

Khan or KHAN may refer to:

Popular culture

Administrative divisions of Cambodia

Cambodia is divided into 24 provinces (Khmer: ខេត្ត, khaet) (as of January 2014 New Province of Tboung Khmum split off from Kampong Cham Province) and the special administrative unit Phnom Penh (Khmer: ភ្នំពេញ, Phnom Penh). Though a different administrative unit, Phnom Penh is at province level, so de facto Cambodia has 25 provinces and municipality.

Each of Cambodia's 24 provinces is divided into Districts (Khmer: ស្រុក, Srok)- as of 2010 there are 159 districts and 12 districts in Phnom Penh (Khmer: ខណ្ឌ, Khan). Each of the provinces has one capital district (changed to "City/Town", Khmer: ក្រុង, Krong), e.g. for Siem Reap it's Srok Siem Reap. The exceptions are Banteay Meanchey, Kandal, Mondulkiri, Oddar Meanchey, Preah Vihear Province and Rattanakiri, where the province and the capital district does not match together.

District (ស្រុក, srok) of a province is divided into "Communes" (Khmer: ឃុំ, Khum). "Commune" (Khmer: ឃុំ, Khum) is further divided into "Villages" (Khmer: ភូមិ, Phum).