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It blocks cyclooxygenase-2 (COX-2) more than it blocks cyclooxygenase-1 (COX-1). [11] It is in the oxicam family of chemicals and is closely related to piroxicam. [11] Meloxicam was patented in 1977 and approved for medical use in the United States in 2000. [11] [13] It was developed by Boehringer Ingelheim and is available as a generic ...
Perfluoro(2-methyl-3-pentanone) is a fluorinated ketone with the structural formula CF 3 CF 2 C(=O)CF(CF 3) 2, a fully-fluorinated analog of ethyl isopropyl ketone. It is used as an electronics coolant liquid and fire protection fluid sold commercially by 3M under brand names such as Novec 1230 , Novec 649 , and FK-5-1-12 .
A solution with 1 g of solute dissolved in a final volume of 100 mL of solution would be labeled as "1%" or "1% m/v" (mass/volume). This is incorrect because the unit "%" can only be used for dimensionless quantities. Instead, the concentration should simply be given in units of g/mL.
Like a ground glass stopcock, the two parts of a gas syringe should preferably not be interchanged with another gas syringe of the same volume, unless told otherwise by the distributor. [3] Gas syringes come in various sizes from 500 ml to 0.25 ml and tend to be accurate to between 0.01 and 1 ml, depending on the size of the syringe. [4]
= evaporation flux, kg/m 2 ·s of pool surface k = mass transfer coefficient, m/s = 0.002 u: T A = absolute ambient temperature, K M = pool liquid molecular weight, dimensionless P = pool liquid vapor pressure at ambient temperature, Pa R = the universal gas law constant = 8314.5 Pa·m 3 /(kmol·K) u = windspeed just above the liquid surface, m/s
This space can be as high as 84 micro liters in conventional syringes. [2] Conventional high dead space syringes have existed since the mass production of plastic syringes with removable needles in 1961. [3] However, there are problems associated with the dead space in syringes: medication waste, [4] disease transmission, [2] and inaccurate ...
English-speaking countries also used a system of units of fluid measure, or in modern terminology volume units, based on the apothecaries' system. Originally, the terms and symbols used to describe the volume measurements of liquids were the same as or similar to those used to describe weight measurements of solids [33] (for example, the pound by weight and the fluid pint were both referred to ...
Whereas osmolality (with an "l") is defined as the number of osmoles (Osm) of solute per kilogram of solvent (osmol/kg or Osm/kg), osmolarity (with an "r") is defined as the number of osmoles of solute per liter (L) of solution (osmol/L or Osm/L). As such, larger numbers indicate a greater concentration of solutes in the plasma.