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US$ 5.17928 bil (Dec'10) Website. www .alphanr .com. Alpha Metallurgical Resources is a large American producer of metallurgical coal ("met coal") for the industrial production of steel and iron and low-sulfur thermal coal ("steam coal") to fuel steam boilers for the production of electrical power. In November, 2018 the company was acquired by ...
Reticuloendothelial system. In anatomy the term reticuloendothelial system (abbreviated RES ), often associated nowadays with the mononuclear phagocyte system (MPS), was employed by the beginning of the 20th century to denote a system of specialised cells that effectively clear colloidal vital stains (so called because they stain living cells ...
The exoskeleton cannot stretch and thus restricts growth. Arthropods, therefore, replace their exoskeletons by undergoing ecdysis (moulting), or shedding the old exoskeleton, the exuviae, after growing a new one that is not yet hardened. Moulting cycles run nearly continuously until an arthropod reaches full size.
Alphavirus is a genus of RNA viruses, the sole genus in the Togaviridae family. Alphaviruses belong to group IV of the Baltimore classification of viruses, with a positive-sense, single-stranded RNA genome. There are 32 alphaviruses, which infect various vertebrates such as humans, rodents, fish, birds, and larger mammals such as horses, as ...
Stretch marks, also known as striae ( / ˈstraɪiː /) [citation needed] or striae distensae, [ 1] are a form of scarring on the skin with an off-color hue. Over time, they may diminish, but will not disappear completely. Striae are caused by tearing of the dermis during periods of rapid growth of the body, such as during puberty or pregnancy ...
Metabolism (/ m ə ˈ t æ b ə l ɪ z ə m /, from Greek: μεταβολή metabolē, "change") is the set of life-sustaining chemical reactions in organisms.The three main functions of metabolism are: the conversion of the energy in food to energy available to run cellular processes; the conversion of food to building blocks of proteins, lipids, nucleic acids, and some carbohydrates; and the ...
Alphacoronavirus. Alphacoronaviruses (Alpha-CoV) are members of the first of the four genera ( Alpha -, Beta-, Gamma-, and Delta-) of coronaviruses. They are positive-sense, single-stranded RNA viruses that infect mammals, including humans. They have spherical virions with club-shaped surface projections formed by trimers of the spike protein ...
Yves Roucaute. Yves Roucaute (born 1953 in Paris) is a French philosopher (epistemology, political theory, theology), Phd (Law and Political science), Phd (philosophy), writer, professeur agrégé in philosophy, professeur agrégé in political science, teaching at Paris X University Nanterre, Previous President of the scientific Council of the "Institut National des Hautes Etudes de Securité ...