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Migration
Migration, migratory, or migrate may refer to: Human migration * Human migration, physical movement by humans from one region to another ** International migration, when peoples cross state boundaries and stay in the host state for some minimum length of time Natural sciences Biology * Migration (ecology), the large-scale movement of species from one environment to another ** Animal migration ** Bird migration * Plant migration, see Seed dispersal, the movement or transport of seeds away from the parent plant * Gene migration, a process in evolution and population genetics * Cell migration, a process in the development and maintenance of multicellular organisms ** Collective cell migration, describing the movements of group of cells Physics and chemistry * Molecular diffusion, in physics * Migration (chemistry), type of reaction in organic chemistry * Seismic migration, in seismic and ground penetrating radar data processing * Microscopic motion of material caused by an exte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Migration
Human migration is the movement of people from one place to another, with intentions of settling, permanently or temporarily, at a new location (geographic region). The movement often occurs over long distances and from one country to another (external migration), but internal migration (within a single country) is the dominant form of human migration globally.World Migration Report' Migration is often associated with better human capital at both individual and household level, and with better access to migration networks, facilitating a possible second move. It has a high potential to improve human development, and some studies confirm that migration is the most direct route out of poverty. Age is also important for both work and non-work migration. People may migrate as individuals, in family units or in Mass migration, large groups. There are four major forms of migration: invasion, conquest, colonization and emigration/immigration. People moving from their home due to force ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Migration (Bonobo Album)
''Migration'' is the sixth studio album by British DJ and record producer Simon Green, performing under the name Bonobo. It was released on 13 January 2017 through Ninja Tune. The album was recorded primarily on laptops rather than in a studio. It was supported by the release of several singles, including "Kerala". The album received generally positive reviews from critics and charted internationally, reaching the top five of the UK Albums Chart. Background ''Migration'' was primarily written and recorded while Green was still on tour for his previous album, '' The North Borders''. After the completion of the tour, Green completed a move from New York City to the Echo Park neighborhood of Los Angeles. The move, as well as the travelling for the tour and the deaths of some family members, led Green to contemplate on themes of identity, migration, and the environment. Because the tour for ''The North Borders'' consisted of approximately 175 shows across three continents for abo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Migration
Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology. It is found in all major animal groups, including birds, mammals, fish, reptiles, amphibians, insects, and crustaceans. The cause of migration may be local climate, local availability of food, the season of the year or for mating. To be counted as a true migration, and not just a local dispersal or irruption, the movement of the animals should be an annual or seasonal occurrence, or a major habitat change as part of their life. An annual event could include Northern Hemisphere birds migrating south for the winter, or wildebeest migrating annually for seasonal grazing. A major habitat change could include young Atlantic salmon or sea lamprey leaving the river of their birth when they have reached a few inches in size. Some traditional forms of human migration fit this pattern. Migrations can be studied using tradition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Animal migration, Migration is inherently risky, due to predation and mortality. The Arctic tern holds the long-distance migration record for birds, travelling between Arctic breeding grounds and the Antarctic each year. Some species of Procellariiformes, tubenoses, such as albatrosses, circle the Earth, flying over the southern oceans, while others such as Manx shearwaters migrate between their northern breeding grounds and the southern ocean. Shorter migrations are common, while longer ones are not. The shorter migrations include altitudinal migrations on mountains, including the Andes and Himalayas. The timing of migration seems to be controlled primarily by changes in day length. Migrating birds navigate using celestial cues from the Sun and stars, the Earth's magnetic field, and mental maps. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Migration (ecology)
Migration, in ecology, is the large-scale movement of members of a species to a different environment. Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type. Migration is often cyclical, frequently occurring on a seasonal basis, and in some cases on a daily basis. Species migrate to take advantage of more favorable conditions with respect to food availability, safety from predation, mating opportunity, or other environmental factors. Migration is most commonly seen in the form of animal migration, the physical movement by animals from one area to another. That includes bird, fish, and insect migration. However, plants can be said to migrate, as seed dispersal enables plants to grow in new areas, under environmental constraints such as temperature and rainfall, resulting in changes such as forest migration. Mechanisms While members of some species learn a mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Migration
International migration occurs when people cross state boundaries and stay in the host state for some minimum length of the time. Migration occurs for many reasons. Many people leave their home countries in order to look for economic opportunities in another country. Others migrate to be with family members who have migrated or because of political conditions in their countries. Education is another reason for international migration, as students pursue their studies abroad, although this migration is sometimes temporary, with a return to the home country after the studies are completed. International migration is generally contrasted with internal migration. Categories of migrants While there are several different potential systems for categorizing international migrants, one system organizes them into nine groups; * temporary labor migrants *irregular, illegal, or undocumented immigrant, undocumented migrants *highly skilled and business migrants *refugees *asylum seekers *forc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Migration
Data migration is the process of selecting, preparing, extracting, and transforming data and permanently transferring it from one computer storage system to another. Additionally, the validation of migrated data for completeness and the decommissioning of legacy data storage are considered part of the entire data migration process. Data migration is a key consideration for any system implementation, upgrade, or consolidation, and it is typically performed in such a way as to be as automated as possible, freeing up human resources from tedious tasks. Data migration occurs for a variety of reasons, including server or storage equipment replacements, maintenance or upgrades, application migration, website consolidation, disaster recovery, and data center relocation. The standard phases , "nearly 40 percent of data migration projects were over time, over budget, or failed entirely." Thus, proper planning is critical for an effective data migration. While the specifics of a data mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seismic Migration
Seismic migration is the process by which seismic events are geometrically re-located in either space or time to the location the event occurred in the subsurface rather than the location that it was recorded at the surface, thereby creating a more accurate image of the geology, subsurface. This process is necessary to overcome the limitations of geophysical methods imposed by areas of complex geology, such as: fault (geology), faults, salt dome, salt bodies, fold (geology), folding, etc. Migration moves dipping reflectors to their true subsurface positions and collapses diffractions, resulting in a migrated image that typically has an increased spatial resolution and resolves areas of complex geology much better than non-migrated images. A form of migration is one of the standard data processing techniques for reflection-based geophysical methods (seismic reflection and ground-penetrating radar) The need for migration has been understood since the beginnings of seismic explorati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Migration
Legacy modernization, also known as software modernization or platform modernization, refers to the conversion, rewriting or porting of a legacy system to modern computer programming languages, architectures (e.g. microservices), software libraries, protocols or hardware platforms. Legacy transformation aims to retain and extend the value of the legacy investment through migration to new platforms to benefit from the advantage of the new technologies.Gardner, D"Not just a nip and tuck, application modernization extends the lifecycle of legacy code assets" ''ZDNet'', October 24, 2006 As a basis and first step of software modernization initiatives, the strategy, the risk management, the estimation of costs, and its implementation, lies the knowledge of the system being modernized. The knowledge of what all functionalities are made for, and the knowledge of how it has been developed. As the subject-matter experts (SMEs) who worked at the inception and during all evolutions of the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cell Migration
Cell migration is a central process in the development and maintenance of multicellular organisms. Tissue formation during embryogenesis, embryonic development, wound healing and immune system, immune responses all require the orchestrated movement of cells in particular directions to specific locations. Cells often migrate in response to specific external signals, including chemotaxis, chemical signals and mechanotaxis, mechanical signals. Errors during this process have serious consequences, including intellectual disability, cardiovascular disease, vascular disease, tumor, tumor formation and metastasis. An understanding of the mechanism by which cells migrate may lead to the development of novel therapeutic strategies for controlling, for example, invasive tumour cells. Due to the highly viscous environment (low Reynolds number), cells need to continuously produce forces in order to move. Cells achieve active movement by very different mechanisms. Many less complex prokaryotic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Migration (The Amboy Dukes Album)
''Migration'' is the third studio album by The Amboy Dukes. It was released in 1969 on Mainstream Records. Composition ''AllMusic'' has suggested that ''Migration'' reflects a stronger influence from Ted Nugent's input than the previous Amboy Dukes albums, citing the lack of drug influence in the lyrics due to Nugent's anti-drug stance, and the lack of a "spaced-out follow-up" to " Journey to the Center of the Mind", the band's biggest hit. The band also took a more eclectic approach to composition on ''Migration''. " I'm Not a Juvenile Delinquent" is a cover of a song by Frankie Lymon and the Teenagers. Reception ''Migration'' received a "cold" reception upon release. In a retrospective review, ''AllMusic'' said that the album was "more ambitious" than '' Journey to the Center of the Mind'' and that ''Migration'' "might be the better of the two discs, if not the best of the Amboy Dukes' career." Track listing Personnel * Rusty Day – lead vocals, percussion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Migration (Dave Grusin Album)
''Migration'' is an album by American pianist Dave Grusin released in 1989, recorded for the GRP label. The album reached No. 1 on ''Billboard'''s Contemporary Jazz chart. "The Suite from the Milagro Beanfield War" (tracks 10–14) received the 1990 Grammy Award for Best Arrangement of an Instrumental. Grusin's music from the movie '' The Milagro Beanfield War'' was also a 1989 Academy Award winner, and a 1988 Golden Globe nominee for Best Original Score. Track listing All tracks composed by Dave Grusin; except where indicated #"Punta Del Soul" – 5:51 #"Southwest Passage" – 5:49 #"First Time Love" ( Harvey Mason, Dave Grusin) – 4:05 #"Western Women" ( Don Grusin) – 4:58 #"Dancing in the Township" – 6:06 #"Old Bones" – 6:15 #"In the Middle of the Night" – 5:52 #"T.K.O." ( Marcus Miller) – 5:47 #"Polina" ( Hugh Masekela) – 6:55 Suite from ''the Milagro Beanfield War'': #"Lupita" – 1:08 #"Coyote Angel" – 3:29 #"Pistolero" – 1:47 #"Milagro" – 2:35 #"Fie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
