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1 day ago · Domestication is a multi-generational mutualistic relationship in which an animal species, such as humans or leafcutter ants, takes over control and care of other species, such as sheep or fungi, to obtain from them a steady supply of resources, such as meat, milk, or labor.
9 hours ago · Eigenvalues and eigenvectors. In linear algebra, an eigenvector (/ ˈaɪɡən -/ EYE-gən-) or characteristic vector is a vector that has its direction unchanged by a given linear transformation. More precisely, an eigenvector, , of a linear transformation, , is scaled by a constant factor, , when the linear transformation is applied to it: .
9 hours ago · It has been a central subject for astronomical research since antiquity. The Sun orbits the Galactic Centerat a distance of 24,000 to 28,000 light-years. From Earth, it is 1 astronomical unit(1.496×108 km) or about 8 light-minutesaway. Its diameteris about 1,391,400 km(864,600 mi), 109 times that of Earth.
9 hours ago · The leopard (Panthera pardus) is one of the five extant species in the genus Panthera. It has a pale yellowish to dark golden fur with dark spots grouped in rosettes. Its body is slender and muscular reaching a length of 92–183 cm (36–72 in) with a 66–102 cm (26–40 in) long tail and a shoulder height of 60–70 cm (24–28 in).
1 day ago · 003868. [ edit on Wikidata] Use of real time monitoring of the heart in an intensive care unit in a German hospital (2015), the monitoring screen above the patient displaying an electrocardiogram and various values of parameters of the heart like heart rate and blood pressure. Electrocardiography is the process of producing an electrocardiogram ...
9 hours ago · The broadest definition of natural product is anything that is produced by life, [4][13] and includes the likes of biotic materials (e.g. wood, silk), bio-based materials (e.g. bioplastics, cornstarch), bodily fluids (e.g. milk, plant exudates), and other natural materials (e.g. soil, coal). Natural products may be classified according to their ...
1 day ago · Psychiatry, clinical psychology, toxicology, addiction medicine. Addiction is a neuropsychological disorder characterized by a persistent and intense urge to use a drug or engage in a behavior that produces natural reward, despite substantial harm and other negative consequences.
