Self-locking double retention redundant pull pin release

A double-retention redundant pull pin release system is disclosed. The system responds to a single pull during an intentional release operation. A spiral-threaded main pin is seated in a mating bore in a housing, which main pin has a flange fastened thereon at the part of the main pin which is exterior to the housing. Accidental release tends to rotate the main pin. A secondary pin passes through a slightly oversized opening in the flange and is seated in a second bore in the housing. The pins counteract against one another to prevent accidental release. A frictional lock is shared between the main and secondary pins to enhance further locking of the system. The secondary pin, in response to a first pull, is fully retracted from its bore and flange hole. Thereafter the pull causes the main pin to rotate free of the housing to release, for example, a parachute mechanism

Death Comes to Oplontis: Victims of Mt. Vesuvius Reveal Life in 79 AD

Dr. Kristina Killgrove delivered a fascinating virtual lecture entitled “Death Comes to Oplontis: Victims of Mt. Vesuvius Reveal Life in 79 A.D.” The talk offered a rich supplement to current students in Dr. Jacqueline DiBiasie-Sammons’ Fall 2021 course, Art and Archaeology in Pompeii and Herculaneum, but was accessible to more general audience as well and had more that sixty attendees.https://egrove.olemiss.edu/classics_lectures/1036/thumbnail.jp

Migration and mobility in imperial Rome

Migration to Rome in the Imperial period has been under-researched owing to a dearth of epigraphical and historical evidence, particularly regarding the lower classes. A new set of data has come to light in the form of thousands of skeletons from lower-class cemeteries in Rome's suburbium. Two of these cemeteries, Casal Bertone near the city walls and Castellaccio Europarco in an agricultural area of the Roman suburbs, yielded 183 skeletons for osteological analysis. Combined strontium and oxygen isotope analyses of a subsample of 55 individuals isolated 20 people who came to Rome following a birth elsewhere. Carbon and nitrogen isotope analysis of the same sample population demonstrated that there were significant differences between the childhood diet of immigrants to Rome and that of the locals. Immigrants were more likely to have consumed diets with significant amounts of the C4 plant millet. Prevalence of skeletal and dental diseases, however, were not significantly different between the immigrant and local populations. Mobility in Imperial Rome can thus be characterized from isotope analyses as long-distance migration from the provinces as well as movement of individuals within the Italian peninsula. The biological identification of immigrants to Rome in the absence of historical and epigraphical data is a significant first step towards a new understanding of who migrants were, where they came from, and what experiences they had upon arrival in the Imperial capital

Three-dimensional(3D) printing in forensic science–An emerging technology in India

Three-dimensional(3D) scanning and printing technologies has proved to be a boon and revolutionized Indian society in recent years. 3D printing is slowly gaining popularity in the fields of forensics due to its capability to provide information in all three axis (x, y and z) when compared to 2D photographs.The technology is actively being used in the fields of forensic medicine, anthropology, ballistics and odontology.3D printing allows better visualisation, interpretation, preservation and analysis of the evidence. The present article highlights the applications of 3D printing and presents current needs to develop and incorporate 3D printing technology in Indian forensics

Capturing Roman dietary variability in the catastrophic death assemblage at Herculaneum

Here we present a comparative study of stable carbon (δ13C) and nitrogen (δ15N) isotope data from 81 individuals from the catastrophic death assemblage at Herculaneum (79 CE) and compare these with the attritional sites of Velia (Salerno, Italy, 1st–2nd century CE) and Isola Sacra (Rome, Italy, 1st–2nd century AD). The instantaneous deposition of the Herculaneum assemblage highlights some interesting differences in our contextual and methodological understanding of stable dietary isotopes, suggesting that isotopic variation between sites may sometimes be a result of greater temporal variability rather than truly comparable differences. Our results suggest that the people of Herculaneum obtained a relatively small proportion (ca. 30%) of their dietary carbon from marine foods; the majority originating from terrestrial foodstuffs of a similar carbon isotopic composition, most likely cereals. Also observed is a generally greater dietary isotopic enrichment in male individuals than females. We infer that males had greater access to fish which may be reflective, in part, of the sociodemographic framework characteristic of Roman society. Finally, we highlight the methodological challenges which may be faced when undertaking comparisons of δ13C and δ15N data between the various age-related strata of a population, particularly due to the slow and variable rate of collagen turnover

A multidisciplinary approach to investigate the osteobiography of the Roman Imperial population from Muracciola Torresina (Palestrina, Rome, Italy)

The present research provides the osteobiographical reconstruction of the Roman Imperial population of the rural area of Muracciola Torresina (Palestrina, Rome, Italy) through an innovative multidisciplinary approach, combining evidence from skeletal biology, biomolecules and archaeobotany. The excavation of the site, unearthed 76 individuals: 84.2% adults and 15.8% non-adults. Morphological examination showed a higher prevalence of females with respect to males (M:F = 0.89). Musculoskeletal stress marker analysis highlighted a probable division of daily tasks between sexes; the observed modifications mainly affected the upper limbs with a particular involvement of shoulder and elbow joints. The population seems to have experienced physically strenuous life conditions, as suggested by the high frequency of degenerative and infectious diseases. Carbon and nitrogen stable isotope data supported an omnivorous diet mainly based on C3 plants and terrestrial animal protein. No statistically significant difference was found between sexes or age classes, even though a discrete variability of nitrogen isotopic values was observed which was hypothesized to reflect the consumption of pulses by certain individuals with the lowest values. Microscopic analysis of dental calculus detected Triticeae starch granules in the majority of the analyzed individuals. Chromatographic profiles additionally revealed the presence of ephedrine derivatives in the calculus of two individuals, an alkaloid which might indicate the consumption of Ephedra species used as medicinal plant due to its bronchodilator, nasal decongestant and vasoconstrictor properties. This use of multiple cutting-edge techniques has revealed a detailed snapshot of the diet and lifeways of the first Roman Imperial population to be recovered from the area of ancient Praeneste

Poundbury Camp in context – a new perspective on the lives of children from urban and rural Roman England

Objectives The current understanding of child morbidity in Roman England is dominated by studies of single sites/regions. Much of the data are derived from third to fifth century AD Poundbury Camp, Dorchester, Dorset, considered an unusual site due to high levels of non-adult morbidity. There is little understanding of children in rural areas, and whether Poundbury Camp was representative of Romano-British childhood. Materials and methods The study provides the first large scale analysis of child health in urban and rural Roman England, adding to the previously published intra-site analysis of non-adult paleopathology at Poundbury Camp. Age-at-death and pathology prevalence rates were reassessed for 953 non-adults (0–17 years) from five major urban, six minor urban, and four rural sites (first to fifth century AD). The data were compared to the results from 364 non-adults from Poundbury Camp. Results Rural sites demonstrated higher levels of infant burials, and greater prevalence of cribra orbitalia in the 1.1–2.5 year (TPR 64.3%), and 6.6–10.5 year cohorts (TPR 66.7%). Endocranial lesions were more frequent in the minor urban sample (TPR 15.9%). Three new cases of tuberculosis were identified in urban contexts. Vitamin D deficiency was most prevalent at Poundbury Camp (CPR 18.8%), vitamin C deficiency was identified more frequently in rural settlements (CPR 5.9%). Discussion The Poundbury Camp data on morbidity and mortality are not representative of patterns in Roman England and other major urban sites. Rural children suffered from a distinct set of pathologies described as diseases of deprivation, prompting reconsideration of how Romano-British land management affected those at the bottom of the social hierarchy

Kristina Killgrove's Quick Files

The Quick Files feature was discontinued and it’s files were migrated into this Project on March 11, 2022. The file URL’s will still resolve properly, and the Quick Files logs are available in the Project’s Recent Activity