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The filter papers are transformed into filter cartridges, which then is fitted to a holder. The construction of the cartridges mostly requires that the paper is stiff enough to be self-supporting. A paper for air filters needs to be very porous and have a weight of 100–200 g/m 2. Normally particularly long fibrous pulp that is mercerised is ...
While paper is the most commonly recycled material (68.2 percent of paper waste was recovered in 2018, up from 33.5 percent in 1990) [31] [33] it is being used less overall than at the turn of the century. [34] As of 2018, paper accounted for a third of all recyclables collected in the US, by weight. [32]
±2 mm (0.079 in) for any dimension above 600 mm (24 in). There used to be a standard, DIN 198, that was just a table of recommended A series formats for a number of business applications. The 1976 edition of this standard introduced a size 2 ⁄ 3 A4 198 mm × 210 mm and suggested it for some forms and slips. [citation needed]
53.1 - 86% sensitive and 100% specific Hand, foot and mouth disease: Syncytial nuclei, absence of acantholytic cells 1: 72% sensitive and 100% specific Human papillomavirus infections: Koilocytes 75% sensitive and 100% specific Molluscum contagiosum: Intracytoplasmic inclusion bodies (“Henderson-Patterson’s bodies”) Milker’s nodule and orf
In the early 1930s, cartoon-style saucy postcards became widespread, and at the peak of their popularity the sale of saucy postcards reached 16 million a year. They were often bawdy in nature, making use of innuendo and double entendres , and traditionally featured stereotypical characters such as vicars, large ladies, and put-upon husbands, in ...
RSV has a negative-sense, single-stranded RNA genome. [2] The genome is linear and approximately 15,000 nucleotides in length. [3] It has 10 genes encoding for 11 proteins. [2] [4] The gene order is NS1-NS2-N-P-M-SH-G-F-M2-L, with the NS1 and NS2 gene serving as nonstructural promoter genes. [35] Electron micrograph of RSV particle, which has ...