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  Lange Q & A. Surgical technology examination. Seventh edition.

  Carolan Sherman, Mary Chmielewski.

  Contents:
  Medical terminology
  Microbiology
  Pharmacology and anesthesia
  Blood values
  Aseptic technique
  Sterilization and disinfection
  Operating room environment
  Transportation and positioning
  Counts
  Specimens
  Medical, ethical, and legal responsibilities
  Diagnostic procedures
  Consents
  Skin preparation and draping
  Instruments
  Sutures, stapling devices, and drains
  Wound healing and dressings
  General surgery
  Obstetrics and gynecology
  Ophthalmology
  Otorhinolaryngology
  Plastic and reconstructive surgery
  Genitourinary
  Thoracic
  Cardiac
  Vascular
  Neurosurgery
  Orthopedics
  Pediatrics
  Biomedical science (Electricity, hemostasis, lasers, and computers)
  Occupational hazards/fire safety
  Endoscopy, minimally invasive surgery, and robotics.

  Digital Access McGraw-Hill eBook Library 2017
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• Article

  Studies of the effects of ultraviolet radiation on the structural integrities of ribosomal RNA components of the Escherichia coli 50S ribosomal subunit.

  Gorelic L, Parker D.

  Biochemistry. 1978 Jul 25;17(15):3152-62.

  The effects of 254-nm radiation on the structural integrities of free and 50S ribosome-bound 5S and 23S ribosomal ribonucleic acids (rRNA) have been elucidated. Irradiation of aqueous solutions of Escherichia coli 50S ribosomes with 253.7-nm radiation results in the formation of single-strand breaks in double-stranded regions of the 23S rRNA component, but not in rRNA chain scission, and destabilization of the secondary structure of the 23S rRNA toward denaturation. The minimum doses of 253.7-nm radiation required for the first detection of the two effects are 7 x 10(19) quanta for the production of single-strand breaks in double-stranded regions of the 23S rRNA, and less than 2.3 x 10(19) quanta for destabilization of the 23S rRNA secondary structure. Free 23S rRNA is resistant toward photoinduced chain breakage at doses of 253.7-nm radiation up to at least 2.3 x 10(20) and is much less sensitive toward destabilization of secondary structure than ribosome-bound 23S rRNA toward chain breakage, 50S ribosome-bound 5S rRNA is resistant toward chain breakage at doses of 253.7-nm radiation up to at least 2.3 x 10(20) quanta. Ribosome-bound 5S and 23S rRNA are also not photosensitive toward intermolecular 5S/23S rRNA crosslinkage.

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  PubMed