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Instituto Técnico Militar

The Instituto Técnico Militar designed as the Belen Jesuit Preparatory School, it is located at 45th and 66th streets in Marianao, Cuba. Her Majesty Isabella II, Queen of Spain, issues a royal charter in the year 1854 founding the Colegio de Belén in Havana, Cuba. Belen School begins its educational work in the building occupied by the convent and convalescent hospital of Our Lady of Belen, hence the name of the school. A meteorological observatory was established in 1857. A facility was built in 1896. In 1961 the government of Fidel Castro confiscated all religious schools in Cuba. Castro declared the government of Cuba an atheist government. Castro's government nationalized businesses and banks, confiscating more than $1 billion in American-owned property. Thousands of those dubbed “enemies of the revolution” were executed or imprisoned, school curriculum was reshaped by communist doctrine. Free speech was not an option, the Cuban socialist press was an extension of the government; the building was constructed on sixty acres of land, donated and was to be used as the main building of the Colegio de Belén, open since 1854 within the premises of the convent of the same name in Old Havana, those premises had become unsuitable and badly located due to the change of atmosphere in the neighborhood and the growth of the city.

The project was designed by the Cuban architectural firm of Morales & Cia in 1925 an unlimited budget for designing a religious school, the Jesuit Colegio de Belén. The result was a monumental pan-optical edifice with an extensive neoclassical facade perpendicular to the chapel and four large courtyards with three stories of porticoed galleries to link nine radial pavilions; the appearance is of extreme monumentality, supported both in the design resources and the unusual dimensions of the spaces. The structure is built from concrete-covered steel, the flooring and roof are monolithic reinforced concrete; the chapel had two aisles and a central nave, being higher, has a mural by Hipolito Hidalgo de Caviedes. El Colegio de Belen was known as "The Palace of Education." It is a Cuban National Monument. Images from the 1950s of the Colegio de Belen: La Habana, Guia de Arquitectura, Maria Elena Zequeira & Eduardo Luis Rodriguez Fernandez, editors ISBN 84-8095-143-5

23rd Street station (IRT Lexington Avenue Line)

23rd Street is a local station on the IRT Lexington Avenue Line of the New York City Subway. Located at the intersection of Park Avenue South and 23rd Street in Gramercy Park and Flatiron District, Manhattan, it is served by 6 trains at all times, <6> trains during weekdays in the peak direction, 4 trains during late night hours. Construction started on the first IRT line in 1900; the part of the line from City Hall to just south of 42nd Street was part of the original IRT line, opened on October 27, 1904, including a local station at 23rd Street. On April 13, 1948, the platform extensions to accommodate ten-car trains at this station along with those at 28th Street, 33rd Street were opened for use. In 1981, the MTA listed the station among the 69 most deteriorated stations in the subway system. In late 2014, construction began to install ADA-accessible elevators in the station. To make room for the elevator that serves the northbound platform, the northbound staircase on the northeastern corner of Park Avenue South and 23rd Street had to be demolished, rebuilt/relocated a few feet down the street.

The relocated staircase opened in August 2015. The construction was completed in December 2016 making the station ADA-compliant; this is a typical local station with two side platforms. During station renovations in 1988, the beige tiles were removed and the original white ones restored, it has IND-style signs indicating the way to 23rd Streets. An ornate fare control grille on the southbound side is a piece of artwork entitled Long Division by artist Valerie Jaudon, installed during the renovation; the station features a back-lit "23 Street/Park Avenue South" sign at the platform level fare control. There is a low tiled wall at the 22nd Street end, a remnant of a closed crossunder; the station features modern features such as emergency communication systems, vendors on both south and north bound sides, Wi-Fi, connecting the communications system with the NYPD Emergency direct line. The station does not contain restrooms; the station has 2 elevator entrances, one to each platform, as well as 6 staircases to the southbound platform and 5 to the northbound platform.

Several staircases blocked by plywood barriers suggest that there was a third exit to the southwestern corner of 23rd Street and Park Avenue South from the southbound platform. Nycsubway.org – IRT East Side Line: 23rd Street Station Reporter — 6 Train Forgotten NY — Original 28 - NYC's First 28 Subway Stations MTA's Arts For Transit — 23rd Street 23rd Street entrance from Google Maps Street View 22nd Street entrance from Google Maps Street View Platforms from Google Maps Street View

Sera Markoff

Sera Markoff is an American astrophysicist and full professor of theoretical high energy astrophysics at the University of Amsterdam. She is a member of the Event Horizon Telescope team. Sera Markoff studied physics at the Massachusetts Institute of Technology and was awarded a Bachelor's of Science in Physics in 1993. In 1996 she gained a Master of Arts from the University of Arizona in theoretical astrophysics, in 2000 she gained a PhD in the same field, she was an Alexander von Humboldt Foundation Research Fellow at the Max Planck Institute for Radio Astronomy in Bonn from 2000 to 2002 and a National Science Foundation Astronomy & Astrophysics Postdoctoral Fellow at the Massachusetts Institute of Technology from 2002 to 2005. In 2006 she joined the University of Amsterdam as an assistant professor, was promoted to associate professor in 2008 and to professor in 2017. In 2019 she became editor of the journal Astroparticle Physics. Sera Markoff's research focuses on the interface between astrophysics and particle physics, in particular problems relating to processes occurring around dense objects such as black holes.

She is a member of a number of large scale research projects including the Low-Frequency ARay, Cherenkov Telescope Array and Event Horizon Telescope, which produced the first image of a black hole. She is a member of the leadership of the Event Horizon Telescope project where she serves as a member of the science council and as one of the working group coordinators. Beatrice M. Tinsley Centennial Visiting Professorship University of Texas at Austin 2015 Fellow of the American Physical Society 2014 VICI Award 2015 VIDI Personal Career Award 2007 Markoff S et al.. Going with the flow: can the base of jets subsume the role of compact accretion disk coronae? Astrophys. J. 635: 1203–1216

Black the Sun

Black the Sun is the debut album by the Australian singer–songwriter Alex Lloyd, released in January 1999 via EMI Records. It won the 2000 ARIA Music Award for Best Male Artist; the song "Something Special" was remixed by Resin Dogs to create "Something Special". Black The Sun received critical acclaim, with Triple J listeners voting it their album of the year. Writing for The Guardian in September 2000, John Aizlewood compared Lloyd's "eclectic approach" and "inspired turn of phrase" to that of Beck, stated that the album "yields more with each play", he went on to draw comparison with the music of Crowded House, singled out "Black the Sun", "What a Year" and "Backseat Clause" as the album's highlights, the latter, he noted, is a track which "closes the album in stark, lonesome fashion". AccoladesBlack The Sun was awarded a nomination for "Breakthrough Artist - Album" at the 2000 ARIA Awards, where Lloyd himself won the prize for "Best Male Artist". All tracks written except where noted. "Melting" "Momo" "Something Special" "Desert" "Snow" "My Way Home" "Black The Sun" "Lucky Star" "What A Year" "Faraway" "Aliens" "Gender" "Backseat Clause" Alex Lloyd – co-producer, vocals, drums, bassAdditional musiciansLouise Morgan – spoken word Trent Williamson – programming, harmonica Terapai Richmond – drums Daniel Denholm – string arrangement, vocal arrangement Clayton Doley – organTechnical personnelEd Buller – co-producer, programming Trent Williamson – co-producer Black The Sun peaked at #9 on the Australian Charts in July 1999.

The album remained in the top 50 albums for 28 weeks. Official website

Haley Georgia

Haley Georgia is an American country music singer. Georgia's professional music career started when Eric Church and Arturo Buenahora Jr. heard some of her original songs and signed her to a publishing deal on Little Louder Music. A year some of Georgia's original recordings caught the attention of Universal Records and was signed to a full-length recording contract shortly after, her hit song, "Ridiculous," was featured on SiriusXM The Highway. Georgia released Pretty Girls Mixtape on Universal Records.. Georgia has opened for acts Chase Rice, Kane Brown, Colt Ford, Eric Paslay, she co-wrote Dallas Smith's song "Autograph". Haley parted ways with UMG Nashville in August 2017. Georgia was born on August 11, 1996, she is a native of Houston, Texas. Official website

Turnstile (symbol)

In mathematical logic and computer science the symbol ⊢ has taken the name turnstile because of its resemblance to a typical turnstile if viewed from above. It is referred to as tee and is read as "yields", "proves", "satisfies" or "entails"; the symbol was first used by Gottlob Frege in his 1879 book on logic, Begriffsschrift. In TeX, the turnstile symbol ⊢ is obtained from the command \vdash. In Unicode, the turnstile symbol is called right tack and is at code point U+22A2. On a typewriter, a turnstile can be composed from a dash. In LaTeX there is a turnstile package which issues this sign in many ways, is capable of putting labels below or above it, in the correct places; the turnstile represents a binary relation. It has several different interpretations in different contexts: In epistemology, Per Martin-Löf analyzes the ⊢ symbol thus: "...he combination of Frege's Urteilsstrich, judgement stroke, Inhaltsstrich, content stroke, came to be called the assertion sign." Frege's notation for a judgement of some content A ⊢ A can be read I know A is true.

In the same vein, a conditional assertion P ⊢ Q can be read as: From P, I know that QIn metalogic, the study of formal languages. This is to say, that it shows that one string can be derived from another in a single step, according to the transformation rules of some given formal system; as such, the expression P ⊢ Q means. Consistent with its use for derivability, a "⊢" followed by an expression without anything preceding it denotes a theorem, to say that the expression can be derived from the rules using an empty set of axioms; as such, the expression ⊢ Q means. In proof theory, the turnstile is used to denote "provability" or "derivability". For example, if T is a formal theory and S is a particular sentence in the language of the theory T ⊢ S means that S is provable from T; this usage is demonstrated in the article on propositional calculus. The syntactic consequence of provability should be contrasted to semantic consequence, denoted by the double turnstile symbol ⊨. One says that S is a semantic consequence of T, or T ⊨ S, when all possible valuations in which T is true, S is true.

For propositional logic, it maybe be shown that semantic consequence ⊨ and derivability ⊢ are equivalent to one-another. That is, propositional logic is sound and complete In the typed lambda calculus, the turnstile is used to separate typing assumptions from the typing judgment. In category theory, a reversed turnstile, as in F ⊣ G, is used to indicate that the functor F is left adjoint to the functor G. More a turnstile. as in F ⊢ G, is used to indicate that the functor F is right adjoint to the functor G. In APL the symbol is called "right tack" and represents the ambivalent right identity function where both X⊢Y and ⊢Y are Y; the reversed symbol "⊣" is called "left tack" and represents the analogous left identity where X⊣Y is X and ⊣Y is Y. In combinatorics, λ ⊢ n means that λ is a partition of the integer n. In Hewlett-Packard's HP-41C/CV/CX and HP-42S series of calculators, the symbol is called "Append character" and is used to indicate that the following characters will be appended to the alpha register rather than replacing the existing contents of the register.

The symbol is supported in a modified variant of the HP Roman-8 character set used by other HP calculators. ꜔ Modifier Letter Mid Left-Stem Tone Bar ├ Box Drawings Light Vertical And Right ㅏ Korean Ah Ͱ Greek Capital Letter Heta ͱ Greek Small Letter Heta Ⱶ Latin Capital Letter Half H ⱶ Latin Small Letter Half H ⎬ Right curly bracket Double turnstileSequent Sequent calculus List of logic symbols List of mathematical symbols Frege, Gottlob. "Begriffsschrift: Eine der arithmetischen nachgebildete Formelsprache des reinen Denkens". Halle. Iverson, Kenneth. "A Dictionary of APL". Martin-Löf, Per. "On the meanings of the logical constants and the justifications of the logical laws". Nordic Journal of Philosophical Logic. 1: 11–60. Schmidt, David. "The Structure of Typed Programming Languages". MIT Press. ISBN 0-262-19349-3. Troelstra, A. S.. "Basic Proof Theory". Cambridge University Press. ISBN 978-0-521-77911-1