Diagnostic criteria for identification of seashell as a trephination implement

Scanning electron microscopy has been applied to experimentally cut bone samples and an ethnographical example of trephination on a human skull in order to produce diagnostic criteria for the identification of mollusc shells as cutting implements used in trephination. Shell scrapes are identifiable by parallel striations in the direction of cut, crossed at 90° by chatter marks caused by uneven movement of the fragile shell-edge across the bone surface.     

A possible case of renal osteodystrophy in a skeleton from medieval Wharram Percy,England

The skeletal remains of a child aged 13–15 years, recovered from Wharram Percy, England, and dating from AD 960–1700, were examined using gross observation, radiography and scanning electron microscopy. Lesions suggestive of renal osteodystrophy were found. Palaeopathological recognition of renal disease has hitherto relied upon the identification of soft tissue lesions or the presence of urinary calculi. This appears to be the first palaeopathological identification of renal insufficiency on the basis of skeletal changes alone. Copyright © 2007 John Wiley & Sons, Ltd.     

Bone preservation,decay and its related conditions in ancient human bones from Kuwait

By means of scanning electron microscopy, four out of a series of twelve inhumations from the Hellenistic Period were examined for traces of the decay process. The changes represented the result of erosion and biological decomposition of human bones on a small island in the northern part of the Persian Gulf over a period of ca. 2200 years. Special emphasis was given to bone preservation and blood cell survival, and to bone changes due to physicochemical erosion and fungus, bacterium, insect and plant-root activity. Related soil and climatic conditions were taken into consideration. The observations should be evaluated to understand the unusual state of preservation of the bones and to avoid possible misinterpretation of pseudo-pathological bone changes as ante-mortem pathology.     

Analysis of enamel ultrastructure in archaeology: The identification of Ovis aries and Capra hircus dental remains

Ultrastructural features of deep, intermediate and superficial enamel were quantitatively assessed for the mandibular first permanent molars of 10 specimens each of the domestic sheep (Ovis aries) and goat (Capra hircus). The means of a number of variables differed interspecifically at high levels of statistical significance, especially with regard to the enamel of intermediate depth. A canonical discriminant function analysis employing nine variables at all three enamel depths resulted in the correct taxonomic assignment of 95% of the specimens comprising the present sample. These results, coupled with the simple preparative and analytical methods presented here, may enable archaeozoologists to utilize enamel ultrastructure in order to discriminate between fragmentary dental remains of these caprine species.     

微量物证技术在医用螺钉质量问题鉴定中的应用

医用螺钉在手术中得到大量的使用的同时,因其质量事故频发,患者对质量鉴定要求越来越迫切。我们借助光学显微分析、电子显微分析技术、X射线荧光能谱分析等微量物证分析技术。从微观角度对螺钉断裂原因进行了质量鉴定.     

Scanning electron microscopy of dry hide working tools: The role of abrasives and humidity in microwear polish formation

This paper presents the results of the scanning electron microscopy of a series of experimental tools designed to investigate the role of abrasive agents and humidity in microwear polish formation. The tools—35 end scrapers—were divided into four groups and used to work dry hide. It was found that both humidity and abrasive agents are two basic variables in the development of the microwear polish.     

The Peopling of the New World: Present Evidence, New Theories, and Future Directions

The prevailing archaeological consensus on Paleoindian origins and colonization of the Americas has been shaken by recent wide acknowledgment of pre-Clovis occupation at Monte Verde, Chile, and by claims that ostensibly non-Mongoloid skeletal remains might represent a precursor population. Recent mitochondrial DNA studies have been interpreted by some as indicating an earlier and more complex peopling of the continent. This paper reviews the current archaeological and biological evidence, in America and northern Asia, for the origins of Native Americans, assesses models of the colonization process in the light of new data and a revised chronology, and suggests avenues for future research.     

Provenance of Weeden Island “sacred” and “prestige” vessels: implications for specialized ritual craft production

ABSTRACT

Weeden Island mortuary ceremonialism united distinct cultures across the Late Woodland social landscape. The Weeden Island pottery series is central to recognizing regional ceremonial parity, with prestige (elite) and sacred (cult) wares showing strong similarities among distant sites. Finely made vessels and their ostensibly shamanistic themes led archaeologists to consider the liturgical and political roles of ritual specialists, whose tasks might have included vessel manufacture in centralized locations. This research evaluates the prospect of craft specialization and centralized production of sacred and prestige wares through comparisons of the provenance of vessels from three Florida localities: Palmetto Mound (8LV2), the mounds at Melton (8AL5, 8AL7), and McKeithen (8CO17). Results of Neutron Activation Analysis and petrographic analysis show that the majority of the sampled vessels were made far from the mounds in which they were deposited, from a variety of locations but especially within the area between Kolomoki and the Tallahassee Hills. We argue that production was not centralized but may have been specialized to the extent that an integrated ritual network was necessary to coordinate rules of manufacture and use that were evidently observed by all participants.     

Is Unresolved Inflammatory Angiogenesis a Mechanism for the Delayed Development of Skeletal Lesions in Syphilis?

A recently described case of putative early tertiary syphilis in a young adult male from 6th century Anglo‐Saxon England exhibits a distinctive endocranial pathology. A case–control study using both clinical and archaeological materials was performed to investigate a possible association of the pathology with syphilis. Scanning electron microscopy and microcomputed tomography were used to image the syphilitic case and normal cranial material. Although the pathology does seem to have an association with syphilis (OR = 13.14), the sample size is small, and the authors caution against overinterpretation of the results. The study confirms observations by other authors suggesting the lesion has some association with a range of pathological conditions. Any association with syphilis seems to be restricted to the early tertiary stages and is possibly absent in the later stages of the disease. The morphological differences present in the samples observed by scanning electron microscopy and microcomputed tomography illustrate the abnormal nature of the vascularity within the syphilitic cranium. The widespread presence of similar lesions within other tubular bones leads the authors to propose hypothesis that unresolved angiogenesis is the underlying mechanism behind the skeletal changes in tertiary syphilis. This angiogenic model accounts for several diverse characteristics in the progression of skeletal disease resulting from infection by spirochetes of the Treponema pallidum family. Copyright © 2012 John Wiley & Sons, Ltd.     

Roman pottery production in Civitas Tungrorum,central Belgium,during the first–third centuries ce

Aspects of Roman pottery production at the workshops of Kontich, Tienen, Rumst, Grobbendonk and Clavier-Vervoz in the Civitas Tungrorum of central Belgium are explored. A total of 150 wasters from five sites were studied macroscopically, as well as via a combination of thin-section petrography, geochemistry and scanning electron microscopy, in order to gain insights into ceramic technology and aspects of the organization of production. Particular emphasis was given to the individual technological sequences and shared strategies of raw material selection, paste preparation and firing employed at the five adjacent sites. The integration of petrographic and geochemical data permitted the establishment of compositional reference groups for the Roman kiln sites of Civitas Tungrorum, which can be used to track their products within the surrounding landscape.     

An investigation of climatic change in the holocene epoch using archaeological charcoal from Swaziland, Southern Africa

A methodology is described for the analysis of Holocene charcoals excavated from a rock shelter in the Lubombo Mountains of northeast Swaziland. Scanning electron microscopy was used to compare these with modern reference woods. Of the ancient material 96·6% could be identified, in some cases at specific level. It is in such a subtropical area, where the woody flora is so rich, that assemblages of local taxa can be used in palaeoclimatic reconstructions. The changing taxa indicated by the charcoal fragments from the rock shelter clearly reflect minor shifts in Holocene climate, from moist to dry and back to moist in recent times. This is of relevance to the fluctuations in Stone Age populations in southern Africa. The wider use of such evidence to complement other palaeoenvironmental and archaeological data is advocated.