Health & Environmental Research Online (HERO)


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2,492 References Were Found:

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

The use of laser beams for measuring tooth mobility and tooth movements

Authors: Rydén, H; Bjelkhagen, H; Söder, PO (1975) HERO ID: 3227817

[Less] The laser reflexion method, a direct contactless measuring technique with a high accuracy, has been . . . [More] The laser reflexion method, a direct contactless measuring technique with a high accuracy, has been applied for clinical purposes. A prototype has been tested using a laser beam to illuminate a patient's tooth fixed to the equipment by an impression plate. The reflected patterns were thrown onto a screen with a coordinate system and photographically recorded, and the movement of the tooth has been geometrically calculated. The relapse tendency after orthodontic treatment of a patient with periodontal disease and parafunctions was studied by repeated measurements of the left medial upper incisor. By use of the method, it was possible to observe that the velocity of the studied tooth was highest during the 1st day and, besides the horizontal movement, a rotation of the tooth began at the end of the measuring period.

Book/Book Chapter
Book/ Chapter

The detection of chemical mutagens with enteric bacteria

Author: Ames, BN (1971) In Hollaender, A (Ed.), Chemical mutagens: Principles and methods for their detection: Volume 1 (pp. 267-282). New York, NY: Plenum Press. HERO ID: 3196309

[Less] Mutagens alter DNA. As the DNA of all organisms has the same double helical structure and the same four . . . [More] Mutagens alter DNA. As the DNA of all organisms has the same double helical structure and the same four nucleotides, any organism may be used as an indicator system for mutagens. Bacteria have numerous advantages for the detection of mutagens, and we discuss these and describe various methods and strains. We also discuss the validity of the bacterial tests and their pertinence to human mutagenesis and carcinogenesis.