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Titas (Portuguese pronunciation: [tSi'tas]) are a rock band from Sao Paulo, Brazil. Though they basically play pop/alternative rock, their music has touched a number of other styles throughout their 30-year career, such as new wave, punk rock, grunge, MPB and electronic music. They are one of the most successful rock bands in Brazil, having sold more than 6,3 million albums as of 2005 and having been covered by several well-known Brazilian artists and a couple of international singers. They were awarded a Latin Grammy in 2009 and have won the Imprensa Trophy for Best Band a record four times.
The band hired the bass guitarist Lee Marcucci (from Radio Taxi) to play in their album Como Estao Voces? (How Are You?). As this album was released, the five remaining members continued to write the history of more than 20 years of the band. With self-help hits as "Enquanto Houver Sol", questions on relevance remain on Titas' side, which faced declining sales and the ageing of their fanbase. In 2005, they released another MTV-branded album, only this time in a non-acoustic live performance. This album generated a new hit for the group, called "Vossa Excelencia", that basically criticizes the hypocrisy and lack of care from politicians, thus bringing the band back to its roots. It was seen as another opportunistic stunt by Brazilian critics, as the song was released exactly when Lula's government was facing manifold accusations of corruption. On February 18, 2006, Titas opened the Rolling Stones free concert at Copacabana beach, Rio de Janeiro for an audience of some 1.5 million people. In 2007, the band started a tour, entitled 25 Anos de Rock (25 Years of Rock), joining Os Paralamas do Sucesso to celebrate the 25th anniversary of both bands, as well as the 25th anniversary of the rising of 1980s Brazilian rock bands. The two line-ups played together most of the time on the shows, presenting also some invited musicians, like Arnaldo Antunes, Andreas Kisser and Dado Villa-Lobos. The concert in Rio de Janeiro, which took place at January 26, 2008, was recorded and filmed. The resulting CD and DVD from the show were released five months after.
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did Titas do as well without Nando?

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2005, they released another MTV-branded album, only this time in a non-acoustic live performance.

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Herbert Alexander Simon (June 15, 1916 - February 9, 2001) was an American economist and political scientist whose primary interest was decision-making within organizations and is best known for the theories of "bounded rationality" and "satisficing". He received the Nobel Prize in Economics in 1978 and the Turing Award in 1975. His research was noted for its interdisciplinary nature and spanned across the fields of cognitive science, computer science, public administration, management, and political science. He was at Carnegie Mellon University for most of his career, from 1949 to 2001.
Herbert Alexander Simon was born in Milwaukee, Wisconsin, on June 15, 1916. His father, Arthur Simon (1881-1948), was an electrical engineer who had come to the United States from Germany in 1903 after earning his engineering degree from the Technische Hochschule of Darmstadt. An inventor who was granted "several dozen patents", his father also was an independent patent attorney. His mother, Edna Marguerite Merkel, was an accomplished pianist whose ancestors had come from Prague and Cologne. His European ancestors had been piano makers, goldsmiths, and vintners. Simon's father was Jewish and his mother came from a family with Jewish, Lutheran, and Catholic backgrounds. Simon called himself an atheist. Simon was educated in the Milwaukee public school system, where he developed an interest in science. He found schoolwork to be interesting and easy. Unlike many children, Simon was exposed to the idea that human behavior could be studied scientifically at a relatively young age due to the influence of his mother's younger brother, Harold Merkel, who had studied economics at the University of Wisconsin-Madison under John R. Commons. Through his uncle's books on economics and psychology, Simon discovered the social sciences. Among his earliest influences, Simon has cited Richard Ely's economics textbook, Norman Angell's The Great Illusion, and Henry George's Progress and Poverty. At that time, Simon argued "from conviction, rather than cussedness" in favor of George's controversial "single tax" on land rents. In 1933, Simon entered the University of Chicago, and following those early influences, he studied the social sciences and mathematics. He was interested in biology, but chose not to study it because of his "color-blindness and awkwardness in the laboratory". He chose instead to focus on political science and economics. His most important mentor was Henry Schultz, an econometrician and mathematical economist. Simon received both his B.A. (1936) and his Ph.D. (1943) in political science, from the University of Chicago, where he studied under Harold Lasswell, Nicholas Rashevsky, Rudolf Carnap, Henry Schultz, and Charles Edward Merriam. After enrolling in a course on "Measuring Municipal Governments", Simon was invited to be a research assistant for Clarence Ridley, with whom he coauthored Measuring Municipal Activities in 1938. Eventually his studies led him to the field of organizational decision-making, which would become the subject of his doctoral dissertation.
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what is known of his siblings?

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Scott Richard Weiland (; ne Kline, October 27, 1967 - December 3, 2015) was an American musician, singer and songwriter. During a career spanning three decades, Weiland was best known as the lead singer of the band Stone Temple Pilots from 1989 to 2002 and 2008 to 2013. He was also a member of supergroup Velvet Revolver from 2003 to 2008 and recorded one album with another supergroup, Art of Anarchy.
Weiland married Janina Castaneda on September 17, 1994; the couple divorced in 2000. He married model Mary Forsberg on May 20, 2000. They had two children, Noah (born 2000) and Lucy (born 2002). Weiland and Forsberg divorced in 2007. In 2005, Weiland and his son Noah were featured on comedian David Spade's The Showbiz Show with David Spade during a comedy sketch about discouraging music file sharing. Noah has a line during the sketch in which he asks a little girl, "Please buy my daddy's album so I can have food to eat." Weiland was a Notre Dame Fighting Irish football fan, as his stepfather is an alumnus. In September 2006, Weiland performed at the University of Notre Dame's Legends Restaurant on the night before a football game. He sang several of his solo songs as well as "Interstate Love Song" and a cover of Pink Floyd's "Wish You Were Here". In a 2007 interview with Blender magazine, Weiland mentioned that he was raised a Catholic. Mary Forsberg Weiland's autobiography Fall to Pieces was co-written with Larkin Warren and released in 2009. Scott Weiland's autobiography, Not Dead & Not for Sale, co-written with David Ritz, was released May 17, 2011. In a November 2012 interview with Rolling Stone, Weiland revealed that he was engaged to photographer Jamie Wachtel whom he met during the 2011 filming of his music video for the song, "I'll Be Home for Christmas". Weiland and Wachtel married on June 22, 2013, at their Los Angeles home.
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What that his only marriage?

Answer:
He married model Mary Forsberg on May 20, 2000. They had two children, Noah (born 2000) and Lucy (born 2002). Weiland and Forsberg divorced in 2007.