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Archives Service Center, University Library System, University Of Pittsburgh
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 on 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 is in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institutional Repository
An institutional repository 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 can be viewed 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 (postprints) unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photograph
A photograph (also known as a photo, image, or picture) is an image created by light falling on a photosensitive surface, usually photographic film or an electronic image sensor, such as a CCD or a CMOS chip. Most photographs are now created using a smartphone/camera, which uses a lens to focus the scene's visible wavelengths of light into a reproduction of what the human eye would see. The process and practice of creating such images is called photography. Etymology The word ''photograph'' was coined in 1839 by Sir John Herschel and is based on the Greek φῶς (''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-based "heliography" process developed by Nicéphore Niépce. The first photographs of a real-world scene, made using a camera obscura, followed a few years later at Le Gras, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Library Projects
Digital usually refers to something using discrete digits, often binary digits. Technology and computing Hardware *Digital electronics, electronic circuits which operate using digital signals **Digital camera, which captures and stores digital images ***Digital versus film photography **Digital computer, a computer that handles information represented by discrete values **Digital recording, information recorded using a digital signal Socioeconomic phenomena *Digital culture, the anthropological dimension of the digital social changes *Digital divide, a form of economic and social inequality in access to or use of information and communication technologies *Digital economy, an economy based on computing and telecommunications resources Other uses in technology and computing *Digital data, discrete data, usually represented using binary numbers *Digital marketing, search engine & social media presence booster, usually represented using online visibility. *Digital media, media sto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Political History Of The United States
The politics of the United States function within a framework of a constitutional federal republic and presidential system, with three distinct branches that share powers. These are: the U.S. 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 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 have the power to make laws within their jurisdictions 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 have three branches: an executive branch headed by a governor, a legislative body, and judicial branc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Labor Relations In The United States
The labor history of the United States describes the history of organized labor, US labor law, and more general history of working people, in the United States. Beginning in the 1930s, unions became important allies of the Democratic Party. The nature and power of organized labor 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 Democrats usually much more successful. Labor unions became a central element of the New Deal coalitio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. 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; Perth, Australia; and Massachusetts, Illinois, Ohio, Washington anNew Paltz, New Yo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Online Music And Lyrics Databases
In computer technology and telecommunications, online indicates a state of connectivity and offline indicates a disconnected state. In modern terminology, this usually refers to an Internet connection, but (especially when expressed "on line" or "on the line") could refer to any piece of equipment or functional unit that is connected to a larger system. Being online means that the equipment or subsystem is connected, or that it is ready for use. "Online" has come to describe activities performed on and data available on the Internet, for example: "online identity", "online predator", "online gambling", "online game", "online shopping", "online banking", and "online learning". Similar meaning is also given by the prefixes "cyber" and "e", as in the words "cyberspace", "cybercrime", "email", and "ecommerce". In contrast, "offline" can refer to either computing activities performed while disconnected from the Internet, or alternatives to Internet activities (such as shopping in bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fracking
Fracking (also known as hydraulic fracturing, hydrofracturing, or hydrofracking) is a well stimulation technique involving the fracturing of bedrock formations 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. Hydraulic fracturing began as an experiment in 1947, and the first commercially successful application followed in 1950. As of 2012, 2.5 million "frac jobs" had been performed worldwide on oil and gas wells, over one million of those within the U.S. Such treatment is generally necessary to achieve adequate flow rates in shale gas, tight gas, tig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal Mine
Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to 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 the above-ground structures are 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-cut and longwall mines. Mining at this scale requires the use of draglines, trucks, conveyors, hydraulic jacks and shearers. The coal mining industry has a long history of significant negative environmental impacts on local ecosystems, health impacts on local communities and workers, and contributes heavily to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Archive Service Center Coal Mine Maps
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pay Car Pittsburgh And Lake Erie Railroad Company
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 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 See also * Pay as you go (other) * Pay Day (other) * Pay It (other) * Pay it forward (other) * Pay Less (other) * Payback (disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. Sound recording is the transcription of invisible vibrations in air onto a storage medium such as a phonograph disc. The process is reversed in sound reproduction, and the variations stored on the medium are transformed back into sound waves. 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 v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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