Third molar maturity index and legal age in different ethnic populations: Accuracy of Cameriere’s method

2021 ◽  
Vol 61 (1_suppl) ◽  
pp. 105-112
Author(s):  
Francesco De Micco ◽  
Federica Martino ◽  
Luz Andrea Velandia Palacio ◽  
Mariano Cingolani ◽  
Carlo Pietro Campobasso
Keyword(s):  
Age Estimation ◽  
Quantitative Method ◽  
Third Molar ◽  
Maturity Index ◽  
Chronological Age ◽  
The Third ◽  
Ethnic Populations ◽  
Margin Of Error ◽  
The World ◽  
The Relationship

Molar development is widely accepted as a reliable indicator of chronological age in a forensic context. A quantitative method for age estimation has been proposed by Cameriere et al. based on the relationship between chronological age and the third molar maturity index (I3M), which is the ratio between the two apical pulp widths and the total tooth length. Cameriere’s cut off value of 0.08 was found to be a reliable tool in assessing the threshold of 18 years of age. The aim of this study was to evaluate the accuracy of the I3M in different ethnic populations focusing on its specificity (subjects correctly classified as <18 years based on I3M >0.08) and sensitivity (subjects correctly classified as ≥18 years based on I3M <0.08). A review of 22 scientific articles was performed, representing data from panoramic radiographs of 12,286 individuals (5723 males and 6563 females) from all over the world, including some ethnical subgroups. The I3M showed an overall sensitivity for both sexes ranging from 51.8% to 93.4% and a specificity ranging from 86.2% to 100%. The proportion of correctly classified individuals ranged from 74% to 95%. These results can be useful to refer the age estimation with the margin of error of subjects correctly classified as minors (specificity) or adults (sensitivity), according to sex, ethnicity and geographical distribution. The I3M can be considered a suitable method for estimating adulthood in forensic settings, regardless of sex. However, ethnic group can affect the accuracy.

RECREATION SPECIALIZATION FOR RUNNERS AND EVENT ATTACHMENT

2020 ◽  
Author(s):  
Isao Okayasu ◽  
Chi-Ok Oh ◽  
Duarte B Morais
Keyword(s):  
Practical Implication ◽  
Event Management ◽  
Attitudes And Behaviors ◽  
The Third ◽  
Study Results ◽  
The World ◽  
Recreation Specialization ◽  
And Behaviors ◽  
The Relationship ◽  
Predictive Relationship

Running is one of the most popular activities in the world. Runners’ attitudes and behaviors vary depending on their running style. This study aims to construct different measures of running specialization based on the theory of specialization. This study also tests a runner’s stage of specialization segmentation based on recreation specialization and examines the predictive relationship between a runner’s specialization and event attachment. Three groups of sampling data assess the performance of diverse specialization measures for running in three marathon events. First, two surveys were conducted with marathon participants to assess the performance of diverse specialization measures for runners. Second, the third dataset was used to examine the relationship between a runner’s recreation specialization and event attachment.The study results showed that the 15 measures of specialization showed a good fit to the data. Our research showed how runners’ recreation specialization is connected to their event attachment. In addition, this study suggested event management for subdivisions of runners. Its practical implication is that recreation specialization for running can help us understand event attachment.

scholarly journals The Seed-Hull Weight Ratio as an Index of Peanut Maturity1,2

1977 ◽  
Vol 4 (2) ◽  
pp. 47-50 ◽  
Author(s):  
Harold E. Pattee ◽  
Johnny C. Wynne ◽  
James H. Young ◽  
Fred R. Cox
Keyword(s):  
Seed Weight ◽  
Quantitative Method ◽  
Weight Ratio ◽  
Maturity Index ◽  
Peanut Seed ◽  
Seed Maturity ◽  
Harvest Dates ◽  
Arachis Hypogaea L ◽  
Seed Hull ◽  
The Relationship

Abstract A simple, quantitative method was developed to determine peanut (Arachis hypogaea L.) maturity. The method is based on the changing seed-hull weight ratio during maturation of the fruit. The ratio or maturity index was determined for fresh as well as air-dried pods, and these ratios correlated well with a physiological maturity index. The relationship between arginine maturity index and the air-dried seed-hull maturity index (DMI) was also determined, and the two indexes were negatively correlated. The DMI values across nine planting and eight harvest dates over a 2-year period showed that DMI could be applied to estimate average peanut seed maturity under field harvest conditions. The two peanut varieties tested, Florigiant and Florunner, were found to differ in maxmum DMI values. The study also showed that peanut seed weight increased with maturity then decreased after full maturity.

The Oblique Lateral Jaw Radiograph

1974 ◽  
Vol 1 (4) ◽  
pp. 139-142
Author(s):  
C. P. Adams
Keyword(s):  
Present Article ◽  
Third Molar ◽  
Third Molars ◽  
X Ray ◽  
The Third ◽  
Molar Teeth ◽  
Relationship Of ◽  
The Relationship ◽  
Film Area

The Oblique Lateral Jaw Radiograph has been used as a routine diagnostic x-ray view for many years as an aid to orthodontic diagnosis and for the assessment of the positions of unerupted third molar teeth. Many methods for obtaining clear undistorted views of the teeth have been suggested from a freehand setting up of film, patient and x-ray tube, to the use of simple orientated devices. The present article describes a method of standardizing the relationship of film and x-ray tube to one another so that it is only necessary for the radiographer thereafter to place the patient on the film area in a manner depending on whether a view. is required of the third molars only or of the complete upper and lower buccal segments.

scholarly journals Three Myths About Kant’s Second Antinomy

2019 ◽  
Vol 101 (2) ◽  
pp. 258-279
Author(s):  
Robert Watt
Keyword(s):  
The Third ◽  
The World ◽  
Spatially Extended ◽  
The Relationship

Abstract This article challenges three widespread assumptions about Kant’s argument for the antithesis of the Second Antinomy. The first assumption is that this argument consists of an argument for the claim that “[no] composite thing in the world consists of simple parts”, and a logically independent argument for the claim that “nothing simple exists anywhere in the world”. The second assumption is that when Kant argues that “[no] composite thing in the world consists of simple parts”, he is making a claim about the mereological structure of spatially extended things in particular, as opposed to a claim about the mereological structure of things in general. And the third assumption is that Kant’s argument for this part of the antithesis is based on a claim about the relationship between the size of the extension of a composite thing and the sizes of the extensions of the things of which this composite thing consists.

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