|
Surrogate (political Campaigns)
A surrogate is a substitute or deputy for another person in a specific role and may refer to: Relationships * Surrogacy, an arrangement where a woman agrees to carry and give birth to a child for another person who will become its parent at birth * Surrogate partner therapist, in sexual therapy * Surrogate marriage, a custom in Zulu culture Economics *Ersatz, an artificial replacement differing in kind from and inferior in quality to what it replaces. * Surrogation, a psychological phenomenon in management science Arts * Author surrogate or audience surrogate, reciprocal literary techniques *''The Surrogates'', a comic book series * ''Surrogates'' (film), a 2009 film based on the comic book series * ''The Surrogate'' (1984 film), a Canadian erotic film starring Art Hindle * ''The Surrogate'' (1995 film), a TV movie starring Alyssa Milano * ''The Surrogate'' (2020 film), an American LGBT-related Independent drama film *''The Surrogate'', original title of '' The Sessions'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surrogacy
Surrogacy is an arrangement whereby a woman gets pregnant and gives birth on behalf of another person or couple who will become the child's legal parents after birth. People pursue surrogacy for a variety of reasons such as infertility, dangers or undesirable Complications of pregnancy, factors of pregnancy, or when pregnancy is a medical impossibility. Surrogacy is highly controversial and only legal in twelve countries. A surrogacy relationship or legal agreement contains the person who carries the pregnancy and gives birth and the person or persons who take custody of the child after birth. The person giving birth is called the birth mother or gestational carrier or surrogate mother or surrogate. Those taking custody are called the ''commissioning'' or ''intended'' parents. The biological mother may be the surrogate or the intended parent or neither. Surrogate mothers are usually introduced to intended parents through third-party agencies, or other matching channels. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allan McCollum
Allan McCollum (born 4 August 1944) is a contemporary American artist who lives and works in New York City. In 1975, his work was included in the Whitney Biennial, and he moved to New York City the same year. In the late 1970s, he became especially well known for his series, ''Surrogate Paintings''. He has spent over fifty years exploring how objects achieve public and personal meaning in a world caught up in the contradictions made between unique handmade artworks and objects of mass production, and in the early 1990s, he began focusing most on collaborations with small regional communities and historical society museums in different parts of the world. His first solo exhibition was in 1970 and his first New York showing was in a group exhibition at the Sidney Janis Gallery in 1972. Early life McCollum was born in The California Hospital in Los Angeles on August 4, 1944. In 1946, his family moved to Redondo Beach, California, where his three siblings were born, and where he li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surrogate (clergy)
A Surrogate (from Lat. ''surrogare'', to substitute for), is the deputy of a bishop or an ecclesiastical judge, acting in the absence of his principal and strictly bound by the authority of the latter. It is particularly common as a term for clergy deputising for the diocesan judge in dioceses of the Church of England. History Canon 128 of the 1603 canons of the Church of England lays down the qualifications necessary for the office of surrogate, and canon 123 specifies the regulations for appointment to the office. Current use At present the chief duty of a surrogate in England is the granting of marriage licences, so that although often nominated by the bishop, the person appointed is in fact a surrogate to the Chancellor (chief judge) of the diocese. Surrogates may have more extensive delegated powers, and judgments of the Arches Court of Canterbury have been delivered by a surrogate in the absence of the official principal. Surrogates are appointed by means of a legal commis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umbrella Species
Umbrella species are species selected for making wildlife conservation, conservation-related decisions, typically because protecting these species indirectly protects the many other species that make up the ecological community (ecology), community of its habitat (the umbrella effect). Species conservation can be subjective because it is hard to determine the status of many species. The umbrella species is often either a flagship species whose Conservation biology, conservation benefits other species or a keystone species which may be targeted for conservation due to its impact on an ecosystem. Umbrella species can be used to help select the locations of potential reserves, find the minimum size of these conservation areas or reserves, and to determine the composition, structure, and processes of ecosystems. Definitions Two commonly used definitions are: * "A wide-ranging species whose requirements include those of many other species" * A species with large area requirements fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel Species
Sentinel species are organisms, often animals, used to detect risks to humans by providing advance warning of a danger. The terms primarily apply in the context of environmental hazards rather than those from other sources. Some animals can act as sentinels because they may be more susceptible or have greater exposure to a particular hazard than humans in the same environment. People have long observed animals for signs of impending hazards or evidence of environmental threats. Plants and other living organisms have also been used for these purposes. Historical examples Many observations of animals point to toxicity in food, water or air that would or could harm humans. Canaries The classic example is the " canary in the coal mine". The idea of placing a warm-blooded animal in a mine to detect carbon monoxide was first proposed by John Scott Haldane in 1895, and canaries were used as early as 1896. Countries such as Britain, the United States, and Canada used canaries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keystone Species
A keystone species is a species that has a disproportionately large effect on its natural environment relative to its abundance. The concept was introduced in 1969 by the zoologist Robert T. Paine. Keystone species play a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping to determine the types and numbers of various other species in the community. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. Some keystone species, such as the wolf and lion, are also apex predators. The role that a keystone species plays in its ecosystem is analogous to the role of a keystone in an arch. While the keystone is under the least pressure of any of the stones in an arch, the arch still collapses without it. Similarly, an ecosystem may experience a dramatic shift if a keystone species is removed, even though that species was a small part of the ecosystem by measur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indicator Species
A bioindicator is any species (an indicator species) or group of species whose function, population, or status can reveal the qualitative status of the environment. The most common indicator species are animals. For example, copepods and other small water crustaceans that are present in many water body, water bodies can be monitored for changes (biochemical, physiological, or behavioural) that may indicate a problem within their ecosystem. Bioindicators can tell us about the cumulative effects of different pollution, pollutants in the ecosystem and about how long a problem may have been present, which Water pollution#Measurement, physical and chemical testing cannot. A biological monitor or biomonitor is an organism that provides quantitative property, quantitative information on the quality of Environment (biophysical), the environment around it. Therefore, a good biomonitor will indicate the presence of the pollutant and can also be used in an attempt to provide additional inform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flagship Species
In conservation biology, a flagship species is a species chosen to raise support for biodiversity conservation in a given place or social context. Definitions have varied, but they have tended to focus on the strategic goals and the socio-economic nature of the concept, to support the marketing of a conservation effort. The species need to be popular, to work as symbols or icons, and to stimulate people to provide money or support. Species selected since the idea was developed in 1980s include widely recognised and charismatic species like the black rhinoceros, the Bengal tiger, and the Asian elephant. Some species such as the Chesapeake blue crab and the Pemba flying fox, the former of which is locally significant to Northern America, have suited a cultural and social context. Although animal species that can be described as "charismatic megafauna" are frequently the flagship species for a protected ecosystem, large, dominant plant species sometimes serve this role as well, for e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metadata
Metadata (or metainformation) is "data that provides information about other data", but not the content of the data itself, such as the text of a message or the image itself. There are many distinct types of metadata, including: * Descriptive metadata – the descriptive information about a resource. It is used for discovery and identification. It includes elements such as title, abstract, author, and keywords. * Structural metadata – metadata about containers of data and indicates how compound objects are put together, for example, how pages are ordered to form chapters. It describes the types, versions, relationships, and other characteristics of digital materials. * Administrative metadata – the information to help manage a resource, like resource type, and permissions, and when and how it was created. * Reference metadata – the information about the contents and quality of Statistical data type, statistical data. * Statistical metadata – also called process data, may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surrogate Data Testing
Surrogate data testing (or the ''method of surrogate data'') is a statistical proof by contradiction technique similar to permutation tests and parametric bootstrapping. It is used to detect non-linearity in a time series. The technique involves specifying a null hypothesis H_0 describing a linear process and then generating several surrogate data sets according to H_0 using Monte Carlo methods. A discriminating statistic is then calculated for the original time series and all the surrogate set. If the value of the statistic is significantly different for the original series than for the surrogate set, the null hypothesis is rejected and non-linearity assumed. The particular surrogate data testing method to be used is directly related to the null hypothesis. Usually this is similar to the following: ''The data is a realization of a stationary linear system, whose output has been possibly measured by a monotonically increasing possibly nonlinear (but static) function''. Here ''li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surrogate Mechanism
The Unicode Consortium and the ISO/IEC JTC 1/SC 2/ WG 2 jointly collaborate on the list of the characters in the Universal Coded Character Set. The Universal Coded Character Set, most commonly called the Universal Character Set ( UCS, official designation: ISO/IEC 10646), is an international standard to map characters, discrete symbols used in natural language, mathematics, music, and other domains, to unique machine-readable data values. By creating this mapping, the UCS enables computer software vendors to interoperate, and transmit—interchange— UCS-encoded text strings from one to another. Because it is a ''universal'' map, it can be used to represent multiple languages at the same time. This avoids the confusion of using multiple legacy character encodings, which can result in the same sequence of codes having multiple interpretations depending on the character encoding in use, resulting in ''mojibake'' if the wrong one is chosen. UCS has a potential capacity of over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surrogate Proxy
In computer networks, a reverse proxy or surrogate server is a proxy server that appears to any client to be an ordinary web server, but in reality merely acts as an intermediary that forwards the client's requests to one or more ordinary web servers. Reverse proxies help increase scalability, performance, resilience, and security, but they also carry a number of risks. Companies that run web servers often set up reverse proxies to facilitate the communication between an Internet user's browser and the web servers. An important advantage of doing so is that the web servers can be hidden behind a firewall on a company-internal network, and only the reverse proxy needs to be directly exposed to the Internet. Reverse proxy servers are implemented in popular open-source web servers. Dedicated reverse proxy servers are used by some of the biggest websites on the Internet. A reverse proxy is capable of tracking all IP addresses requests that are relayed through it as well as reading ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
