|
PCR
PCR or pcr may refer to: Science * Phosphocreatine, a phosphorylated creatine molecule * Principal component regression, a statistical technique Medicine * Polymerase chain reaction ** COVID-19 testing, often performed using the polymerase chain reaction method * Protein/creatinine ratio, in urine * Pathologic complete response (pCR), in neoadjuvant therapy Technology * Passport Carrier Release, telecommunications software * Peak cell rate, on ATM networks * Platform Configuration Register, a Trusted Platform Module component * Program clock reference, in MPEG transport streams * Processor Control Region, a Windows data structure * XM PCR, a satellite receiver Political parties * '' Parti Communiste Réunionnais'' or Communist Party of Réunion * ''Partidul Comunist Român'' or Romanian Communist Party * ''Partido Comunista Revolucionário'' or Revolutionary Communist Party * ''Partido Cívico Renovador'' or Civic Renovation Party, Dominican Republic Other uses * Put/call rati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymerase Chain Reaction
The polymerase chain reaction (PCR) is a method widely used to rapidly make millions to billions of copies (complete or partial) of a specific DNA sample, allowing scientists to take a very small sample of DNA and amplify it (or a part of it) to a large enough amount to study in detail. PCR was invented in 1983 by the American biochemist Kary Mullis at Cetus Corporation; Mullis and biochemist Michael Smith (chemist), Michael Smith, who had developed other essential ways of manipulating DNA, were jointly awarded the Nobel Prize in Chemistry in 1993. PCR is fundamental to many of the procedures used in genetic testing and research, including analysis of Ancient DNA, ancient samples of DNA and identification of infectious agents. Using PCR, copies of very small amounts of DNA sequences are exponentially amplified in a series of cycles of temperature changes. PCR is now a common and often indispensable technique used in medical laboratory research for a broad variety of applications ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Testing
COVID-19 testing involves analyzing samples to assess the current or past presence of SARS-CoV-2. The two main types of tests detect either the presence of the virus or antibodies produced in response to infection. Molecular tests for viral presence through its molecular components are used to diagnose individual cases and to allow public health authorities to trace and contain outbreaks. Antibody tests (serology immunoassays) instead show whether someone once had the disease. They are less useful for diagnosing current infections because antibodies may not develop for weeks after infection. It is used to assess disease prevalence, which aids the estimation of the infection fatality rate. Individual jurisdictions have adopted varied testing protocols, including whom to test, how often to test, analysis protocols, sample collection and the uses of test results. This variation has likely significantly impacted reported statistics, including case and test numbers, case fatality ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partidul Comunist Român
The Romanian Communist Party ( ro, Partidul Comunist Român, , PCR) was a communist party in Romania. The successor to the pro-Bolshevik wing of the Socialist Party of Romania, it gave ideological endorsement to a communist revolution that would replace the social system of the Kingdom of Romania. After being outlawed in 1924, the PCR remained a minor and illegal grouping for much of the interwar period and submitted to direct Comintern control. During the 1920s and the 1930s, most of its activists were imprisoned or took refuge in the Soviet Union, which led to the creation of competing factions that at times came in open conflict. That did not prevent the party from participating in the political life of the country through various front organizations, most notably the Peasant Workers' Bloc. During the mid 1930s, as a result of the purges against the Iron Guard, the party was on the road to achieving power, but this was crushed by the dictatorship of king Carol II. In the per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Principal Component Regression
In statistics, principal component regression (PCR) is a regression analysis technique that is based on principal component analysis (PCA). More specifically, PCR is used for estimating the unknown regression coefficients in a standard linear regression model. In PCR, instead of regressing the dependent variable on the explanatory variables directly, the principal components of the explanatory variables are used as regressors. One typically uses only a subset of all the principal components for regression, making PCR a kind of regularized procedure and also a type of shrinkage estimator. Often the principal components with higher variances (the ones based on eigenvectors corresponding to the higher eigenvalues of the sample variance-covariance matrix of the explanatory variables) are selected as regressors. However, for the purpose of predicting the outcome, the principal components with low variances may also be important, in some cases even more important. One major use o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partido Comunista Revolucionário
The Revolutionary Communist Party ( pt, Partido Comunista Revolucionário) is an anti-revisionist Marxist-Leninist communist party in Brazil with strong Stalinist tendencies. Originally formed in 1966 after a split with the Communist Party of Brazil, it later merged with the October 8th Revolutionary Movement in 1981, from which it split in 1995. It is a member of the International Conference of Marxist-Leninist Parties and Organizations (Unity & Struggle) (ICMLPO), an organization of anti-revisionist and Hoxhaist parties. As the party is not registered in Brazil's Superior Electoral Court, its members cannot run for public office. History Unhappy with the Communist Party of Brazil's (PCdoB) "revisionist" stance on the direction of the Soviet Union, a group of PCdoB members left the party and formed the Revolutionary Communist Party (PCR) in 1966. The PCR maintained that the PCdoB had abandoned Marxism–Leninism in favor of Soviet revisionism. Brazil had fallen under a right- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Program Clock Reference
MPEG transport stream (MPEG-TS, MTS) or simply transport stream (TS) is a standard digital container format for transmission and storage of audio, video, and Program and System Information Protocol (PSIP) data. It is used in broadcast systems such as DVB, ATSC and IPTV. Transport stream specifies a container format encapsulating packetized elementary streams, with error correction and synchronization pattern features for maintaining transmission integrity when the communication channel carrying the stream is degraded. Transport streams differ from the similarly-named MPEG program stream in several important ways: program streams are designed for reasonably reliable media, such as discs (like DVDs), while transport streams are designed for less reliable transmission, namely terrestrial or satellite broadcast. Further, a transport stream may carry multiple programs. Transport stream is specified in ''MPEG-2 Part 1, Systems'', formally known as ''ISO/IEC standard 13818 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Practical Chinese Reader
The ''Practical Chinese Reader'' () is a six-volume series of Chinese language teaching books developed to teach non-Chinese speakers to speak Chinese, first published in 1981. Books I and II consist of 50 lessons where the reader studies a vocabulary of 1,000 words, and basic Chinese phonology and grammar. The lessons tell the story of two foreign students of Chinese, Palanka and Gubo, first in their own country (Book I) and then in China (Book II). They give priority to everyday topics that Gubo and Palanka encounter (''e.g.'' clothing, entertainment, socializing), and also provide background information on Chinese culture, society, and history. Books III and IV consist of 30 lessons with a vocabulary of about 2,000 words. Each lesson focuses on a wide range of topics such as history, education, economy, medicine, sports, literature and art, newspapers and broadcasting, marriage and family life, scenic spots and historical sites, etc. Books III and IV follow the same forma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XM PCR
The XM PCR is a satellite receiver sold by XM Radio and discontinued in 2004, amidst piracy concerns. Programs allowed users to record every song played on an XM channel, quickly and cheaply building an MP3 library. History The Personal Computer Receiver (PCR) was first announced in 2003. The next year, XM pulled the PCRs from the market, reportedly due to music piracy. However, that didn't stop demand: Some units were reportedly selling for more than US$300 on eBay. As of February 2007, prices settled down to around US$30–50. Enhancements Several enhancements have been created for the PCR, both software and hardware. In the software arena, PCR Replacement programs have been sprouting up on Internet forums and web sites. These are software packages that replace the interface included with the PCR, XMMT. Several features have been added to these new programs, including the ability to rip songs and build an MP3 library, time shift shows so that the user can listen at a more c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palestinian Center For Rapprochement Between Peoples
Palestinian Center for Rapprochement between Peoples (PCR) is a non-profit and non-religious organization. The PCR is based in Beit Sahour under the aegis of the International Solidarity Movement. George Rishmawi is director of PCR. The group was established in 1988, then formally registered under the auspices of the Mennonite Central Committee in Jerusalem in 1991 and officially registered in the Palestinian Ministry of Interior in 2004. The PCR works to promote grassroots dialogue and joint work between Palestinians and people from different nationalities. Its main objective is to encourage peaceful solutions to further Palestinian nationalism through disabling existing stereotypes and prejudice. In addition, PCR works in the field of human rights and information dissemination ( International Middle East Media Centre, IMEMC). Ghassan Andoni Ghassan Andoni ( ar, غسان أنضوني) (born 1956) is a native of Beit Sahour in the Bethlehem area. He is a professor of physics at Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partido Cívico Renovador
The Civic Renovation Party ( es, Partido Cívico Renovador, or PCR) is a political party in the Dominican Republic which was founded in 2006 as the Civic Renovation Movement by Jorge Radhamés Zorrilla Ozuna and a group of social-democratic Dominicans. The party was recognized by the Junta Central Electoral on December 16, 2009 and participated in the 2012 presidential elections, supporting Dominican Liberation Party candidate Danilo Medina through the Purple Alliance. Principles The Civic Renovation Party is "a political organization built by Dominican men and women with freedom of action, pacts, and alliances, and with a strategic vision towards the consolidation of true democracy. This party conceives democracy as equality in social, political, economic, and educational opportunities." Organization The General Statutes outline the party's organization. The National Assembly (or Convention), its executive branch, is governed by the party president of the party. It consi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germán Olano Airport
Germán Olano Airport ( es, Aeropuerto Germán Olano, ) is an airport serving Puerto Carreño, the capital of Vichada Department in Colombia. It is also known as Puerto Carreño Airport (''Aeropuerto Puerto Carreño''). The airport is west of and parallels the Orinoco River, locally Colombia's border with Venezuela. The Puerto Carreno non-directional beacon (Ident: PCR) and VOR-DME (Ident: PTC) are located on the field. Airlines and destinations Passenger Cargo Accidents and incidents On December 20, 2016, Aerosucre Flight 157 crashed while taking off from the airport after failing to become airborne. It was reported that 5 aboard the Boeing 727-200 died, and 1 crew member survived with injuries. See also *Transport in Colombia *List of airports in Colombia This is a list of airports in Colombia, grouped by type and sorted by location. __TOC__ Airports Airport names shown in bold indicate the airport has scheduled service on commercial airlines. Notes * The serv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Production Control Room
The production control room (PCR) or studio control room (SCR) is the place in a television studio in which the composition of the outgoing program takes place. The production control room is occasionally also called an SCR or a gallerythe latter name comes from the original placement of the director on an ornately carved bridge spanning the BBC's first studio at Alexandra Palace which was once referred to as like a minstrels' gallery. Video of features of Alexandra Palace Master control is the technical hub of a broadcast operation common among most over-the-air television stations and television networks. Master control is distinct from a PCR in television studios where the activities such as switching from camera to camera are coordinated. A transmission control room (TCR) is usually smaller in size and is a scaled-down version of centralcasting. Production control room facilities Facilities in a production control room include: * A video monitor wall, with monitors for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
