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Archives Service Center
The Archives Service Center (ASC) is one of the main repositories within the University Library System at the University of Pittsburgh and houses collections of various manuscripts, media, maps, and other materials of historical, social, and scientific content. It houses and functions as the repository for collections that document and describe the history of the Western Pennsylvania region, Allegheny County, Pennsylvania, the city of Pittsburgh, and the University of Pittsburgh. Overview Some of the history of Pittsburgh and the western Pennsylvania region has been documented by primary sources such as manuscripts, books, maps, personal diaries, audio recordings, photographs, and other materials from the past. The ASC collects material related to the history of this region. The holdings in the collections span over a hundred years, primarily from the mid-19th century to the late 20th century. Some of the content is digitized and accessible online. Content published before 1923 ...
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Institutional Repository
An institutional repository (IR) is an archive for collecting, preserving, and disseminating digital copies of the intellectual output of an institution, particularly a research institution. Academics also utilize their IRs for archiving published works to increase their visibility and collaboration with other academics. However, most of these outputs produced by universities are not effectively accessed and shared by researchers and other stakeholders. As a result academics should be involved in the implementation and development of an IR project so that they can learn the benefits and purpose of building an IR. An institutional repository has been defined as "a set of services that a university offers to members of its community for the management and dissemination of digital materials created by the institution and its community members." For a university, this includes materials such as monographs, eprints of academic journal articles—both before ( preprints) and after ( po ...
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Photograph
A photograph (also known as a photo, or more generically referred to as an ''image'' or ''picture'') is an image created by light falling on a photosensitivity, photosensitive surface, usually photographic film or an electronic image sensor. The process and practice of creating such images is called photography. Most photographs are now created using a smartphone or camera, which uses a photographic lens, lens to focus the scene's visible spectrum, visible wavelengths of light into a reproduction of what the human eye would perceive. Etymology The word ''photograph'' was coined in 1839 by Sir John Herschel and is based on the Greek language, Greek φῶς ('':el:phos, phos''), meaning "light", and γραφή (''graphê''), meaning "drawing, writing", together meaning "drawing with light". History The first permanent photograph, a contact-exposed copy of an engraving, was made in 1822 using the Bitumen of Judea, bitumen-based "heliography" process developed by Nicéphore Niép ...
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Digital Library Projects
This is a list of digital library projects. See also * Bibliographic database * List of academic databases and search engines * List of online databases * List of online encyclopedias * List of open-access journals * List of search engines Search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites have a search facility for online databases. By content/topic General ... References {{DEFAULTSORT:List of Digital Library Projects Digital library projects Digital library projects Digital library projects Digital library projects ...
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Political History Of The United States
In the United States, politics functions within a framework of a constitutional federal democratic republic with a presidential system. The three distinct branches share powers: Congress, which forms the legislative branch, a bicameral legislative body comprising the House of Representatives and the Senate; the executive branch, which is headed by the president of the United States, who serves as the country's head of state and government; and the judicial branch, composed of the Supreme Court and lower federal courts, and which exercises judicial power. Each of the 50 individual state governments has the power to make laws within its jurisdiction that are not granted to the federal government nor denied to the states in the U.S. Constitution. Each state also has a constitution following the pattern of the federal constitution but differing in details. Each has three branches: an executive branch headed by a governor, a legislative body, and a judicial branch. At the local l ...
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History Of Labor Relations In The United States
The nature and power of organized labor in the United States is the outcome of historical tensions among counter-acting forces involving workplace rights, wages, working hours, political expression, labor laws, and other working conditions. Organized unions and their umbrella labor federations such as the AFL–CIO and citywide federations have competed, evolved, merged, and split against a backdrop of changing values and priorities, and periodic federal government intervention. In most industrial nations, the labor movement sponsored its own political parties, with the US as a conspicuous exception. Both major American parties vied for union votes, with the Democratic Party usually much more successful. Labor unions became a central element of the New Deal coalition that dominated national politics from the 1930s into the mid-1960s during the Fifth Party System. Liberal Republicans who supported unions in the Northeast lost power after 1964.Nicol C. Rae, ''The Decline and Fal ...
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Music Libraries
A music library contains music-related materials for patron use. Collections may also include non-print materials, such as digitized music scores or audio recordings. Use of such materials may be limited to specific patron groups, especially in private academic institutions. Music library print collections include dictionaries and encyclopedias, indexes and directories, printed music, music serials, bibliographies, and other music literature. Some public libraries have music rooms. Types Traditionally, there are four types of music libraries: #Those developed to support departments of music in university or college settings; #Those developed to support conservatories and schools of music; #Those housed within public libraries; #Those developed as independent libraries or archives supporting music organizations. Musical instrument library A musical instrument library lends or shares musical instruments. Examples can be found in Canada; Massachusetts, Illinois, Ohio, Washington a ...
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Online Music And Lyrics Databases
Below is a table of online music databases that are largely free of charge. Many of the sites provide a specialized service or focus on a particular music genre. Some of these operate as an online music store or purchase referral service in some capacity. Among the sites that have information on the largest number of entities are those sites that focus on discographies of composing and performing artists. Performance rights organisations typically have their own databases as per country they represent, in accordance with Confédération Internationale des Sociétés d'Auteurs et Compositeurs, to help domestic artists collect royalties. Information available on these portals include songwriting credits, publishing percentage splits, and alternate titles for different distribution channels. It is one of the most accurate and official types of databases because it involves direct communication between the artists, record labels, distributors, legal teams, publishers and a global gov ...
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Fracking
Fracking (also known as hydraulic fracturing, fracing, hydrofracturing, or hydrofracking) is a well stimulation technique involving the fracturing of formations in bedrock by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep-rock formations through which natural gas, petroleum, and brine will flow more freely. When the hydraulic pressure is removed from the well, small grains of hydraulic fracturing proppants (either sand or aluminium oxide) hold the fractures open. Fracking, using either hydraulic pressure or acid, is the most common method for well stimulation. Well stimulation techniques help create pathways for oil, gas or water to flow more easily, ultimately increasing the overall production of the well. Both methods of fracking are classed as ''unconventional'', because they aim t ...
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Coal Mine
Coal mining is the process of resource extraction, extracting coal from the ground or from a mine. Coal is valued for its Energy value of coal, energy content and since the 1880s has been widely used to Electricity generation, generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is called a "pit", and above-ground mining structures are referred to as a "pit head". In Australia, "colliery" generally refers to an underground coal mine. Coal mining has had many developments in recent years, from the early days of men tunneling, digging, and manually extracting the coal on carts to large Open-pit mining, open-cut and Longwall mining, longwall mines. Mining at this scale requires the use of Dragline excavator, draglines, trucks, conveyors, hydraulic jacks, and shearers. The coal mining industry has a long ...
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University Archive Service Center Coal Mine Maps
A university () is an institution of tertiary education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities in the Middl ...
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Pay Car Pittsburgh And Lake Erie Railroad Company
Pay or PAY may refer to: *A wage or salary earned for work *The process of payment Places * Pay-e Borj, a village in Lorestan Province of Iran * Pay-e Kal-e Garab, a village in Ilam Province of Iran * Pay-e Rah, a village in Khuzestan Province of Iran * Pay Lake, a lake in Minnesota, USA *Pay Nga mountain in Sweden Other * Pay (geology), the portion of a reservoir that contains economically recoverable hydrocarbons *'' Partido Alianza por Yucatán'', a political party in Mexico *The Hebrew letter Pe *Verifone (NYSE stock ticker: PAY) People with the surname Pay * Antony Pay (born 1945), English clarinettist * Dean Pay (born 1969), Australian rugby league footballer * E. J. Pay (died 1931), British labour movement activist * Jill Pay (born 1951), Serjeant at Arms, House of Commons, UK * Kevin Pay (1939–2020), Australian rules footballer * Pay Chen (born 1976), Canadian television host See also * Pay as you go (other) * Pay Day (other) * Pay It (disambigua ...
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Audio Recording
Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording. Acoustic analog recording is achieved by a microphone diaphragm that senses changes in atmospheric pressure caused by acoustic sound waves and records them as a mechanical representation of the sound waves on a medium such as a phonograph record (in which a stylus cuts grooves on a record). In magnetic tape recording, the sound waves vibrate the microphone diaphragm and are converted into a varying electric current, which is then converted to a varying magnetic field by an electromagnet, which makes a representation of the sound as magnetized areas on a plastic tape with a magnetic coating on it. Analog sound reproduction is the reverse process, with a larger loudspeaker diaphragm c ...
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