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The Kell group was named after the first patient described with antibodies to K 1, a pregnant woman named Mrs. Kellacher in 1945. [11] Mrs. Cellano was likewise a pregnant woman with the first described antibodies to K 2. The K 0 phenotype was first described in 1957 and the McLeod phenotype was found in Hugh McLeod, a Harvard dental student ...
For example, an individual can be AB, D positive, and at the same time M and N positive , K positive (Kell system), Le a or Le b negative (Lewis system), and so on, being positive or negative for each blood group system antigen. Many of the blood group systems were named after the patients in whom the corresponding antibodies were initially ...
Potassium is the major cation (positive ion) inside animal cells (150 mmol/L, 4.8 g/L), while sodium is the major cation of extracellular fluid (150 mmol/L, 3.345 g/L). In the kidneys, about 180 liters of plasma is filtered through the glomeruli and into the renal tubules per day. [ 101 ]
Depending on type of the thermistor in question the may be either positive or negative. If k {\displaystyle k} is positive , the resistance increases with increasing temperature, and the device is called a positive-temperature-coefficient ( PTC ) thermistor , or posistor .
Hooke's law states that = or, equivalently, = where k is a positive real number, characteristic of the spring. A spring with spaces between the coils can be compressed, and the same formula holds for compression, with F s and x both negative in that case. [4] Graphical derivation
This gives new eigenvectors, which we can call K 1 which is the difference of the two states of opposite strangeness, and K 2, which is the sum. The two are eigenstates of CP with opposite eigenvalues; K 1 has CP = +1, and K 2 has CP = −1 Since the two-pion final state also has CP = +1, only the K 1 can decay this way.
At least two people have died as severe storms and tornadoes tore through parts of Texas and Mississippi on Saturday, officials said, while a parade of atmospheric river-fueled storms batters the ...
Klebsiella oxytoca on agar plate. Klebsiella oxytoca is a Gram-negative, rod-shaped bacterium that is closely related to K. pneumoniae, from which it is distinguished by being indole-positive; it also has slightly different growth characteristics in that it is able to grow on melezitose, but not 3-hydroxybutyrate.