paragraph_text: In 2008, Houston received top ranking on Kiplinger's Personal Finance Best Cities of 2008 list, which ranks cities on their local economy, employment opportunities, reasonable living costs, and quality of life. The city ranked fourth for highest increase in the local technological innovation over the preceding 15 years, according to Forbes magazine. In the same year, the city ranked second on the annual Fortune 500 list of company headquarters, first for Forbes magazine's Best Cities for College Graduates, and first on their list of Best Cities to Buy a Home. In 2010, the city was rated the best city for shopping, according to Forbes.

paragraph_text: The National Autonomous University of Mexico (UNAM), located in Mexico City, is the largest university on the continent, with more than 300,000 students from all backgrounds. Three Nobel laureates, several Mexican entrepreneurs and most of Mexico's modern-day presidents are among its former students. UNAM conducts 50% of Mexico's scientific research and has presence all across the country with satellite campuses, observatories and research centres. UNAM ranked 74th in the Top 200 World University Ranking published by Times Higher Education (then called Times Higher Education Supplement) in 2006, making it the highest ranked Spanish-speaking university in the world. The sprawling main campus of the university, known as Ciudad Universitaria, was named a World Heritage Site by UNESCO in 2007.

paragraph_text: Title Year Album ``If It Means a Lot to You ''(A Day to Remember featuring Sierra Kusterbeck) 2009 Homesick`` Contagious'' (Anarbor featuring Sierra Kusterbeck) 2011 The Mixtape ``West Coast ''(Brown & Gammon featuring Sierra Kusterbeck) 2013 Non-album single`` (No) Faith in Fate'' (I the Mighty featuring Sierra Kay) 2015 Connector

paragraph_text: The vice president of Sierra Leone is the second most influential position in the government of Sierra Leone, after the president. The current Vice President of Sierra Leone is Mohamed Juldeh Jalloh, a member of the ruling Sierra Leone People's Party, and he was sworn in as vice president on April 4, 2018, after the victory of him and his presidential running mate running mate in the 2018 Sierra Leone presidential election.

paragraph_text: The Sierra Arana or Sierra de Arana, also known as Sierra Harana, is a mountain range in the center of the province of Granada, southern Spain. Its highest peak is the Peña de la Cruz, at .

paragraph_text: The Wusum Stars of Bombali commonly referred to as simply Wusum Stars, is a Sierra Leonean professional football club based in Makeni, Sierra Leone. They are member of Sierra Leone National Premier League, the top football league in Sierra Leone. The club represent the Bombali District. Their home matches are played at Wusum Stadium in Makeni. Wusum Stars won the Sierra Leone FA Cup in 1979.

paragraph_text: Juan José Barros Araujo (born 24 June 1989 in Barranquilla, Colombia) is a Peruvian footballer. He currently plays for Unión Comercio in the Torneo Descentralizado.

paragraph_text: Face / Off was released in North America on June 27, 1997 and earned $23,387,530 on its opening weekend, ranking number one in the domestic box office. It went on to become the 11th highest domestic and 14th worldwide grossing film of 1997, earning a domestic total of $112,276,146 and $133,400,000 overseas for a total of worldwide gross of $245,676,146. It was a box office hit. It also became Woo's highest - grossing American film.

paragraph_text: José Rafael Abello Silva (alias: "Mono Abello") was a top-ranking member of Colombia's notorious Medellín Cartel. He was considered among the major drug traffickers in the Santa Marta region and the reputed chief of Caribbean coast operations on the cartel's behalf. During January 1987, Abello was included in a group of 128 major narcotics figures whose capture was ordered by President Virgilio Barco. Although he was captured in Barranquilla during that same month, he was released shortly thereafter, apparently with the help of Miguel Pinedo Barros, a senator in La Guajira and reputed protector of cocaine traffickers.

paragraph_text: Javier Castilla Conde (born April 18, 1981, in Bogotá) is a professional male squash player who represented Colombia. He reached a career-high world ranking of World No. 186 in March 2007 after having joined the Professional Squash Association (PSA) in 2006.

paragraph_text: Javier Barros Sierra (1915-1971) was a Mexican engineer and Rector of the National Autonomous University of Mexico during the 1968 Tlatelolco massacre.

paragraph_text: The Electrochemical Society is a learned society (professional association) based in the United States that supports scientific inquiry in the field of electrochemistry and solid-state science and technology. The society membership comprises more than 8,000 scientists and engineers in over 70 countries worldwide who hold individual membership, as well as roughly 100 corporations and laboratories that hold corporate membership.

paragraph_text: Born in Mexico city, he studied civil engineering at UNAM. He became president of the student society of the Faculty of Sciences in 1936 and University Counsellor in 1938. He taught for more than 20 years in the Escuela Nacional Preparatoria (a high school of UNAM) and the National School of Engineering (later Faculty of Engineering), of whom he was director from 1955 to 1958. He became Rector on May 5, 1966. During his rectorship, the government and the army entered Ciudad Universitaria, UNAM's main campus. In protest of these actions and the indiscriminate beating of UNAM's students, he resigned his post on September 23, 9 days before the massacre in Tlatelolco. He was reinstated as Rector after the liberation of CU, a post he held until May 5, 1970.

paragraph_text: Rank Country / Region Diamond production (million carats) in 2016 World 121.7 Russia 40 Botswana 20.9 Australia 13.9 DR Congo 12.3 Canada 11.1 6 Angola 9 7 South Africa 8.4 8 Zimbabwe 9 Namibia 1.5 10 Sierra Leone 0.5 - Other countries

paragraph_text: Henry Lamin Massaquoi (born September 19, 1978 in Bo, Sierra Leone) is a Sierra Leonean international footballer. He is a member of the Leone Stars, Sierra Leone national football team.

paragraph_text: Solana de los Barros is a municipality in the province of Badajoz, Extremadura, Spain. It has a population of 2,657 and an area of 65.09 km².

paragraph_text: Mohamed Fornah (born November 20, 1987 in Freetown, Sierra Leone) is a Sierra Leonean international footballer who is a defender and is currently playing for Perseta Tulungagung in the Liga Indonesia Premier Division. He is also a member of the Sierra Leone National team. He was a member of the Sierra Under-17 squad that participated at the 2005 Mediterranean Cup in Turkey.

paragraph_text: Luiz Roberto de Barros Mott or Luiz Mott (6 May 1946 in São Paulo, Brazil), is a researcher and an anthropologist, a historian and one of the most notable gay civil rights activists in Brazil.

paragraph_text: Magbass Is a farming town in Tonkolili District in the Northern Province of Sierra Leone. Magbass is located about 55 miles from Freetown. The town is home to the Magbass Sugar Complex, one of the largest sugar producing plantation in West Africa . The factory provides employment for a number of people within Tonkolili District and across Sierra Leone .

paragraph_text: A Viuvinha is a 1914 Brazilian silent romantic drama film directed by Luiz de Barros and starring Linda Bianchi and Gita de Barros.

Question: What worldwide ranking does Javier Barros Sierra's employer hold?
Answer: 74th