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Assessment of Sexual Dimorphism on the First and Second Ribs: Exploring Geometric Morphometrics
Başlık:
Assessment of Sexual Dimorphism on the First and Second Ribs: Exploring Geometric Morphometrics
Yazar:
Bhramdat, Henna D., author.
ISBN:
9780438011489
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (78 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: Clifford T. Brown Committee members: Douglas Broadfield; Meredith A B Ellis; Stephen M. Kajiura.
Özet:
Estimating the sex of unknown human skeletal remains is important to the fields of forensic anthropology, bioarchaeology, and other specialties. I studied sexual dimorphism on the first and second ribs to estimate sex from skeletal remains. I employed two approaches. I used geometric morphometrics to analyze landmark and semilandmark coordinate points to examine the overall shape of the ribs. I also examined the sternal end of the ribs for size using the superior-inferior height (SIH) and anterior-posterior breadth (APB) in a binary logistic regression (BLR) model. Differences in male and female first and second ribs are undetectable when landmark coordinate points are used to capture shape variability, but significant differences in the shape of the ribs, however, are detected through the use of semilandmark coordinate points.
Using semilandmark points to estimate sex presented an accuracy rate of 80.7% from the first rib, and 72.9% from the second rib. The use of the sternal end presents consistent results in its ability to estimate sex with an accuracy rate of 84.2%. The BLR model reveals significant differences between males and females than the geometric morphometric approach; it is more applicable for discerning sexual dimorphism of unknown individuals. This study reveals that while geometric morphometrics provides a powerful approach to assessing morphological differences, it is not always better than simpler methods, in this case, simple measurements analyzed through BLR.
Notlar:
School code: 0119
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
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XX(690230.1) | 690230-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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