Title: Mass Spectrometric Determination of the Relative Isotope Abundances of Calcium and the Determination of Geologic Age. Author: Milo M. Backus. Submitted to the Department of Geology and Geophysics on September 14, 1955, in partial fulfillment of the requirements for the degree of Doctor of Philosophy. Techniques of mass spectrometric determination of the relative isotope abundances of cal...

Nineteen species of the deep-water fish family Macrouridae inhabit Mid-Atlantic Ridge (MAR) North Atlantic. Size and age structure, longevity length at were explored for seven more abundant species: Coryphaenoides armatus, brevibarbis, carapinus, guentheri, mediterraneus, rupestris Macrourus berglax. The otoliths from these had growth increments resembling those accepted as annuli in other whic...

determination of f-wave latency is a simple and valuable method in evaluating proximal part of peripheral nerves. the aim of this study was to determine the mean minimal peroneal f wave (f min) in healthy individuals. a total of 282 individuals were studied. the mean age was 45.6 years. the f min (± sd) for 564 peroneal nerves was 47.09 ± 4.51 ms. the f min for the age group of 20-45 and height...

  This research is a cross _ sectional and descriptive study for determining of the mean age of menopause and related factors in Kerman province. The sample included 2000 of Kerman families which chosen by clustering method, and the women of 40_60 years were studied. The women who had not become menopause physiologically were omitted. So the sample size decreased to 224(102 urban, 122 rural). ...

Estimating the age at death in the adult skeleton is problematic owing to the biological variability in age indictors and the differential skeletal response to environmental factors over an individual’s life. Determination of age and sex play a pivotal role in identification of unknown skeletal remains. Age estimation from the recovered bones has been studied and analyzed by many workers. In th...

The age of 116 males of the yellow weasel, Musteh sibirica corema, was de termined by the cementum-layer of the canine tooth, and the characters of the baculum. Six age classes (from the yearling to the five-year age class) were distinguished by the dental annuli. The one-year age class involved many individuals, and was followed by the two-year age class and then the yearling one in the number...

Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of ...

Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of ...