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The United Nations geoscheme is a system which divides 248 countries and territories in the world into six continental regions, 22 geographical subregions, and two intermediary regions. [1] It was devised by the United Nations Statistics Division (UNSD) based on the M49 coding classification . [ 2 ]
This allows users to keep decks synchronized across multiple computers and to study online or on a cell phone. There also is a third-party open-source AnkiWeb alternative, called anki-sync-server, [10] which users can run on their own local computers or servers. Anki 2.1.57+ includes a built-in sync server.
B lymphocytes are the cells of the immune system that make antibodies to invading pathogens like viruses. They form memory cells that remember the same pathogen for faster antibody production in future infections. In immunology, a memory B cell (MBC) is a type of B lymphocyte that forms part of the adaptive immune system.
The cell is the basic structural and functional unit of all forms of life. Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word cellula meaning 'small room'. Most cells are only visible under a microscope.
UN geoscheme subregions of Asia. The United Nations geoscheme for Asia is an internal tool created and used by the United Nations, maintained by the United Nations Statistics Division (UNSD) for the specific purpose of UN statistics. [1] The scheme's subregions are presented here in alphabetical order.
Convection cells can form in any fluid, including the Earth's atmosphere (where they are called Hadley cells), boiling water, soup (where the cells can be identified by the particles they transport, such as grains of rice), the ocean, or the surface of the Sun. The size of convection cells is largely determined by the fluid's properties.
Knuckle mnemonic for the number of days in each month of the Gregorian calendar.Each knuckle represents a 31-day month. A mnemonic device (/ n ə ˈ m ɒ n ɪ k / nə-MON-ik) [1] or memory device is any learning technique that aids information retention or retrieval in the human memory, often by associating the information with something that is easier to remember.
Place cells may also show directionality, meaning they will only fire in a certain location when travelling in a particular direction. [8] [26] [27] An example of place cell remapping, with the location of the place field of cell 1 changing between environment, and cell 2 losing its place field in environment 2.