The Tympanic Plate in Forensic Discrimination Between American Blacks and Whites

1978 ◽  
Vol 23 (4) ◽  
pp. 10736J ◽  
Author(s):  
Michael Finnegan ◽  
F. P. Schulter-Ellis
Keyword(s):  
Blacks And Whites ◽  
American Blacks

The Great Debate

1976 ◽  
Vol 10 (1) ◽  
pp. 21-25
Author(s):  
Barry Nurcombe
Keyword(s):  
Social Responsibility ◽  
Alternative Model ◽  
Cross Cultural ◽  
Cultural Perspective ◽  
Scientific Freedom ◽  
Great Debate ◽  
Blacks And Whites ◽  
And Performance ◽  
Genetically Determined ◽  
American Blacks

A. R. Jensen's hypothesis concerning genetically-determined differences in intelligence between North American blacks and whites is summarised. Problems involved in the application of heritability statistics to IQ data are discussed. The concept of “intelligence” is reviewed from a cross-cultural perspective, and an alternative model of potential, competence and performance is proposed. Finally, the questions of scientific freedom and social responsibility are touched upon, and the implications of the great debate for scientists and educators discussed.

Thickness of the normal skull in the American blacks and whites

1975 ◽  
Vol 43 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Adelola Adeloye ◽  
Kenneth R. Kattan ◽  
Frederic N. Silverman
Keyword(s):  
Blacks And Whites ◽  
American Blacks

scholarly journals American Black-White Differences in Primary Tooth Crown Shape: The Crown Index

2018 ◽  
Vol 23 (3) ◽  
pp. 83-88
Author(s):  
Edward F. Harris ◽  
Betsy D. Barcroft
Keyword(s):  
Primary Teeth ◽  
Primary Tooth ◽  
University Of Tennessee ◽  
Crown Shape ◽  
American Black ◽  
Left And Right ◽  
Blacks And Whites ◽  
The University ◽  
American Blacks ◽  
Shed Light

The purpose of this tooth-size study was to compare the crown index—the ratio of buccolingal to mesiodistal crown size—in the primary teeth of contemporary American blacks and whites. Maximum MD and BL drown dimensions were obtained with sliding calipers from dental casts of children attending the graduate pedodontic and orthodontic clinics at the University of Tennessee, Memphis (n = 226). The crown index (BL/MD times 100) was calculated for all 10 tooth types (left and right sides were averaged prior to calculation). Only the maxillary first molar exhibited a significant sex difference (girls have a higher crown index). In contrast, 9 of the 10 tooth types have signficantly higher crown indices in blacks than whites. Analysis of the MD and BL crown diameters reveals that the race differencs are due exclusively to differences in mesiodistal crown lengths; the buccolingual crown breadths do not differ between these two races. Consequently, the crown indices are higher in blacks because of their larger MD dimensions. Differences in the indices conform to prior findings that American blacks have larger tooth crowns than whites in both the primary and permanent dentitions, and this study shows that the differences are due to the MD not the BL crown axis. Study of the crown components will shed light on how the crown shapes differ between these two races.

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