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- Title
指纹三级特征中汗孔位置的生物学变化规律研究.
- Authors
王有民; 曹吉明; 梁 娜; 柳菁莹; 解晓慧; 李彦霖
- Abstract
Objective To explore the influence of metabolizing skin of finger pulp on the location of sweat pore in the third level characteristics of fingerprints, with the focus to place on the biological predisposition within the period of epidermal replacement. Methods Male and female subjects, each 10 of aging from 18 to 22, were selected to observe their epidermal replacement for one continuous month, with one time every two days to note the observations from direct microscopic photography and finger-inked stamping. The same sweat pore was looked into its changing on the longitudinal and transverse directions at the mastoid ridge. Statistical analysis was carried out into the observed data to unveil the biological predisposition about the location changing of sweat pore. Results From either the direct microscopic photography or finger-inked stamping, the location of observed sweat pore was revealed of changing with some extent on both the longitudinal and transverse directions at the mastoid ridge. For the 20 subjects, the male showed maximum longitudinal and transverse displacements of the observed sweat pores were respective 166.46 and 61.00 microns while those of the female were 73.08 and 45.88 microns. Conclusions During the period of epidermal replacement, the sweat pores change their locations on both the longitudinal and transverse directions at the mastoid ridge of finger pulp, with the longitudinal displacement showing significantly larger than that of transverse direction. Male’s displacements, in both the longitudinal and transverse directions, are remarkably larger than the female’s. The location-changing track approximates an ellipse whose long axis (of length about 119.77±46.69 microns) follows along the direction of the mastoid ridge to which the ellipse’s short axis (of length about 53.44±7.56 microns) is vertical.
- Publication
Forensic Science & Technology, 2020, Vol 45, Issue 5, p480
- ISSN
1008-3650
- Publication type
Article
- DOI
10.16467/j.1008-3650.2020.05.008