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  2. Paper size - Wikipedia

    en.wikipedia.org/wiki/Paper_size

    ±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]

  3. Genital herpes - Wikipedia

    en.wikipedia.org/wiki/Genital_herpes

    HSV is classified into two types, HSV-1 and HSV-2. [1] While historically HSV-2 was more common, genital HSV-1 has become more common in the developed world. [1] [7] Diagnosis may occur by testing lesions using either PCR or viral culture or blood tests for specific antibodies. [1] Efforts to prevent infection include not having sex, using ...

  4. Book size - Wikipedia

    en.wikipedia.org/wiki/Book_size

    [4]: 67–70, 73–75 The size and proportions of a book depend on the size of the original full sheet. If a sheet 480 by 640 mm (19 by 25 in) is used to print a quarto, the resulting untrimmed pages, will be approximately half as large in each dimension: width 240 mm ( 9 + 1 ⁄ 2 in) and height 320 mm ( 12 + 1 ⁄ 2 in).

  5. Paper recycling - Wikipedia

    en.wikipedia.org/wiki/Paper_recycling

    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]

  6. Filter paper - Wikipedia

    en.wikipedia.org/wiki/Filter_paper

    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 ...

  7. Respiratory syncytial virus - Wikipedia

    en.wikipedia.org/wiki/Respiratory_syncytial_virus

    It is a negative-sense, single-stranded RNA virus. [2] Its name is derived from the large cells known as syncytia that form when infected cells fuse. [2] [3] RSV is a common cause of respiratory hospitalization in infants, and reinfection remains common in later life, though often with less severity. It is a notable pathogen in all age groups.