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Archeology

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https://www.readbyqxmd.com/read/28107034/automated-measurement-of-magnesium-calcium-ratios-in-gastropod-shells-using-laser-induced-breakdown-spectroscopy-for-paleoclimatic-applications
#1
Adolfo Cobo, Asier García-Escárzaga, Igor Gutiérrez-Zugasti, Jesús Setién, Manuel R González-Morales, José Miguel López-Higuera
The chemical composition of mollusk shells offers information about environmental conditions present during the lifespan of the organism. Shells found in geological deposits and in many archeological sites can help to reconstruct past climatic conditions. For example, a correlation has been found between seawater temperature and the amount of some substituent elements (e.g., magnesium, strontium) in the biogenerated calcium carbonate matrix of the shell, although it is very species-specific. Here we propose the use laser-induced breakdown spectroscopy (LIBS) to estimate Mg/Ca ratios in modern specimens of the common limpet Patella vulgata...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28073267/folding-sheets-with-ion-beams
#2
Cheng-Lun Wu, Fang-Cheng Li, Chun-Wei Pao, David J Srolovitz
Focused ion beams (FIBs) are versatile tools with cross-disciplinary applications from the physical and life sciences to archeology. Nevertheless, the nanoscale patterning precision of FIBs is often accompanied by defect formation and sample deformation. In this study, the fundamental mechanisms governing the large-scale plastic deformation of nanostructures undergoing FIB processes are revealed by a series of molecular dynamic simulations. A surprisingly simple linear correlation between atomic volume removed from the film bulk and film deflection angle, regardless of incident ion energy and current, is revealed, demonstrating that the mass transport to the surface of material caused by energetic ion bombardment is the primary cause leading to nanostructure deformation...
January 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/28072390/a-molecular-portrait-of-maternal-sepsis-from-byzantine-troy
#3
Alison M Devault, Tatum D Mortimer, Andrew Kitchen, Henrike Kiesewetter, Jacob M Enk, G Brian Golding, John Southon, Melanie Kuch, Ana T Duggan, William Aylward, Shea N Gardner, Jonathan E Allen, Andrew M King, Gerard Wright, Makoto Kuroda, Kengo Kato, Derek Eg Briggs, Gino Fornaciari, Edward C Holmes, Hendrik N Poinar, Caitlin S Pepperell
Pregnancy complications are poorly represented in the archeological record, despite their importance in contemporary and ancient societies. While excavating a Byzantine cemetery in Troy, we discovered calcified abscesses among a woman's remains. Scanning electron microscopy of the tissue revealed 'ghost cells', resulting from dystrophic calcification, which preserved ancient maternal, fetal and bacterial DNA of a severe infection, likely chorioamnionitis. Gardnerella vaginalis and Staphylococcus saprophyticus dominated the abscesses...
January 10, 2017: ELife
https://www.readbyqxmd.com/read/28052096/sex-determination-from-fragmented-and-degenerated-dna-by-amplified-product-length-polymorphism-bidirectional-snp-analysis-of-amelogenin-and-sry-genes
#4
Kotoka Masuyama, Hideki Shojo, Hiroaki Nakanishi, Shota Inokuchi, Noboru Adachi
Sex determination is important in archeology and anthropology for the study of past societies, cultures, and human activities. Sex determination is also one of the most important components of individual identification in criminal investigations. We developed a new method of sex determination by detecting a single-nucleotide polymorphism in the amelogenin gene using amplified product-length polymorphisms in combination with sex-determining region Y analysis. We particularly focused on the most common types of postmortem DNA damage in ancient and forensic samples: fragmentation and nucleotide modification resulting from deamination...
2017: PloS One
https://www.readbyqxmd.com/read/28029148/investigating-mitochondrial-dna-relationships-in-neolithic-western-europe-through-serial-coalescent-simulations
#5
Maïté Rivollat, Stéphane Rottier, Christine Couture, Marie-Hélène Pemonge, Fanny Mendisco, Mark G Thomas, Marie-France Deguilloux, Pascale Gerbault
Recent ancient DNA studies on European Neolithic human populations have provided persuasive evidence of a major migration of farmers originating from the Aegean, accompanied by sporadic hunter-gatherer admixture into early Neolithic populations, but increasing toward the Late Neolithic. In this context, ancient mitochondrial DNA data collected from the Neolithic necropolis of Gurgy (Paris Basin, France), the largest mitochondrial DNA sample obtained from a single archeological site for the Early/Middle Neolithic period, indicate little differentiation from farmers associated to both the Danubian and Mediterranean Neolithic migration routes, as well as from Western European hunter-gatherers...
December 28, 2016: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28004895/cooperation-collective-action-and-the-archeology-of-large-scale-societies
#6
David M Carballo, Gary M Feinman
Archeologists investigating the emergence of large-scale societies in the past have renewed interest in examining the dynamics of cooperation as a means of understanding societal change and organizational variability within human groups over time. Unlike earlier approaches to these issues, which used models designated voluntaristic or managerial, contemporary research articulates more explicitly with frameworks for cooperation and collective action used in other fields, thereby facilitating empirical testing through better definition of the costs, benefits, and social mechanisms associated with success or failure in coordinated group action...
November 2016: Evolutionary Anthropology
https://www.readbyqxmd.com/read/28003486/feline-immunodeficiency-virus-cross-species-transmission-implications-for-emergence-of-new-lentiviral-infections
#7
Justin Lee, Jennifer L Malmberg, Britta A Wood, Sahaja Hladky, Ryan Troyer, Melody Roelke, Mark Cunningham, Roy McBride, Winston Vickers, Walter Boyce, Erin Boydston, Laurel Serieys, Seth Riley, Kevin Crooks, Sue VandeWoude
: Owing to a complex history of host-parasite coevolution, lentiviruses exhibit a high degree of species specificity. Given the well-documented viral archeology of HIV emergence following human exposures to SIV, understanding processes that promote successful cross-species lentiviral transmissions is highly relevant. We have previously reported natural cross-species transmission of a subtype of feline immunodeficiency virus, puma lentivirus A (PLVA), between bobcats (Lynx rufus) and mountain lions (Puma concolor) in a small number of animals in California and Florida...
December 21, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27998363/non-destructive-micro-chemical-and-micro-luminescence-characterization-of-jadeite
#8
Alejandro Mitrani Viggiano, José Luis Ruvalcaba Sil, Mayra D Manrique Ortega, Victoria Corregidor Berdasco
Jadeite was greatly appreciated by pre-Hispanic cultures in Mesoamerica. Despite its importance, knowledge of its mining sources was lost after the Spanish conquest. In the 1950s the only confirmed jadeite deposits in Mesoamerica were found in the Motagua River Fault (MRF), Guatemala. The aim of this study is to present a methodology that is appropriate for the study of archeological jadeite objects using non-destructive spectroscopic and micro-ion beam analysis techniques. This methodology has been applied to perform mineral, elemental, and luminescence characterization of five jadeite samples from the MRF, with white, lilac, and green colors...
December 2016: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/27995157/dataset-on-elemental-concentration-and-group-identification-of-ancient-potteries-from-tamil-nadu-india
#9
A Chandrasekaran, A Naseerutheen, R Ravisankar
The dataset contains concentration of major and trace elements of ancient potteries from Tamilnadu and grouping different potteries from the statistical techniques of factor and cluster analysis (Figs. 2, 3 and 4). The major and trace elemental concentration data generated using energy dispersive X-ray fluorescence technique (EDXRF) and factor and cluster analysis data obtained using STATISTICA (10.0 version) software. The concentration of major and trace elements determines the type of clay minerals (Calcareous/Non-Calcareous and either low or high refractory) and firing atmosphere adopted by the artisans at the time of manufacture...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/27917611/high-mass-and-spatial-resolution-mass-spectrometry-imaging-of-nicolas-poussin-painting-cross-section-by-cluster-tof-sims
#10
M Noun, E Van Elslande, D Touboul, H Glanville, S Bucklow, P Walter, A Brunelle
The painting Rebecca and Eliezer at the Well, which hangs in the Fitzwilliam Museum, Cambridge, UK, is possibly one of the last figure painting executed by Nicolas Poussin at the very end of his life and is usually dated to the early 1660s. In this perspective special feature, Philippe Walter, Alain Brunelle and colleagues give new insights on the artist's working methods by a careful stateof-the-art imaging ToF-SIMS study of one sample taken on the edge of the painting. This approach allowed for the identification of the pigments used in the painting, their nature and components and those of the ground and preparatory layers, with the identification of the binder(s) and possible other additions of organic materials such as glue...
December 2016: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/27915182/using-spatial-metrics-and-surveys-for-the-assessment-of-trans-boundary-deforestation-in-protected-areas-of-the-maya-mountain-massif-belize-guatemala-border
#11
S D Chicas, K Omine, J B Ford, K Sugimura, K Yoshida
Understanding the trans-boundary deforestation history and patterns in protected areas along the Belize-Guatemala border is of regional and global importance. To assess deforestation history and patterns in our study area along a section of the Belize-Guatemala border, we incorporated multi-temporal deforestation rate analysis and spatial metrics with survey results. This multi-faceted approach provides spatial analysis with relevant insights from local stakeholders to better understand historic deforestation dynamics, spatial characteristics and human perspectives regarding the underlying causes thereof...
February 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/27904152/mitochondrial-dna-diversity-of-present-day-aboriginal-australians-and-implications-for-human-evolution-in-oceania
#12
Nano Nagle, Kaye N Ballantyne, Mannis van Oven, Chris Tyler-Smith, Yali Xue, Stephen Wilcox, Leah Wilcox, Rust Turkalov, Roland A H van Oorschot, Sheila van Holst Pellekaan, Theodore G Schurr, Peter McAllister, Lesley Williams, Manfred Kayser, R John Mitchell
Aboriginal Australians are one of the more poorly studied populations from the standpoint of human evolution and genetic diversity. Thus, to investigate their genetic diversity, the possible date of their ancestors' arrival and their relationships with neighboring populations, we analyzed mitochondrial DNA (mtDNA) diversity in a large sample of Aboriginal Australians. Selected mtDNA single-nucleotide polymorphisms and the hypervariable segment haplotypes were analyzed in 594 Aboriginal Australians drawn from locations across the continent, chiefly from regions not previously sampled...
December 1, 2016: Journal of Human Genetics
https://www.readbyqxmd.com/read/27880075/holes-in-the-head-the-art-and-archeology-of-trepanation-in-ancient-peru-by-john-w-verano
#13
Stanley Finger
No abstract text is available yet for this article.
November 23, 2016: Journal of the History of the Neurosciences
https://www.readbyqxmd.com/read/27875538/seasonal-cyclicity-in-trace-elements-and-stable-isotopes-of-modern-horse-enamel
#14
Niels J de Winter, Christophe Snoeck, Philippe Claeys
The study of stable isotopes in fossil bioapatite has yielded useful results and has shown that bioapatites are able to faithfully record paleo-environmental and paleo-climatic parameters from archeological to geological timescales. In an effort to establish new proxies for the study of bioapatites, intra-tooth records of enamel carbonate stable isotope ratios from a modern horse are compared with trace element profiles measured using laboratory micro X-Ray Fluorescence scanning. Using known patterns of tooth eruption and the relationship between stable oxygen isotopes and local temperature seasonality, an age model is constructed that links records from six cheek upper right teeth from the second premolar to the third molar...
2016: PloS One
https://www.readbyqxmd.com/read/27864968/taphonomic-effects-of-mechanical-plowing-on-buried-juvenile-sized-remains
#15
Alyssa M Newcomb, James T Pokines, Tara L Moore
Agricultural activity is a worldwide taphonomic process and can present unique challenges in the recovery of buried remains. Previous research has been mostly within the realm of site formation processes of archeological sites utilizing only surface material. This research expands upon the previous research by incorporating the distribution of subsurface material by the use of archeological excavation techniques. An experiment was conducted utilizing juvenile pig (Sus scrofa) skeletons buried in relative anatomical position at two different depths (15 cm below the surface [cmbs] and 22 cmbs)...
January 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27858983/copper-and-zinc-isotope-ratios-in-human-bone-and-enamel
#16
Klervia Jaouen, Estelle Herrscher, Vincent Balter
OBJECTIVES: Here, we report Cu and Zn isotope ratios of bones and teeth of French people from various historical periods with the aim to understand how Cu and Zn isotope ratios of bone, a tissue that is continuously remodeled throughout life but that is prone to post-mortem diagenesis, compare with that of tooth enamel, a tissue that forms once during childhood but that is more resistant to diagenesis. Specifically, we examine (1) the potential existence of sex-related differences in the Cu isotope ratios (represented as δ(65) Cu) in the tooth enamel of identified men and women, and (2) a decrease of Zn isotope delta ratios (represented as δ(66) Zn) related to the increase of meat and fish consumption during the 20(th) century...
November 17, 2016: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/27853978/sex-differences-of-dental-pathology-in-early-modern-samurai-and-commoners-at-kokura-in-japan
#17
Joichi Oyamada, Yoshikazu Kitagawa, Masahito Hara, Junya Sakamoto, Takayuki Matsushita, Toshiyuki Tsurumoto, Yoshitaka Manabe
So-called "Ohaguro", teeth blackening, in the married females was a general custom regardless of class in the early modern period. As a result, Ohaguro was thought to have enhanced the acid resistance of tooth substance and tightened gingiva and prevented tooth morbidity due to periodontal disease. For investigation into the influence of Ohaguro, the skeletal remains of early modern samurai and commoners at Kokura were examined for differences in the dental pathology based on sex. Though females from archeological sites have significantly more carious teeth and antemortem tooth loss (AMTL) than males in the previous studies, the prevalence of caries and AMTL in males was higher than in females among the early modern samurai and commoners in Kokura...
November 16, 2016: Odontology
https://www.readbyqxmd.com/read/27853133/genetic-trail-for-the-early-migrations-of-aisin-gioro-the-imperial-house-of-the-qing-dynasty
#18
Lan-Hai Wei, Shi Yan, Ge Yu, Yun-Zhi Huang, Da-Li Yao, Shi-Lin Li, Li Jin, Hui Li
The House of Aisin Gioro, the imperial clan of Qing dynasty (1644-1911), affected the history of China and the formation of Manchu ethnicity greatly. However, owing to the lack of historical records and archeological evidences, the origin of the House of Aisin Gioro remains ambiguous. To clarify the origin of Aisin Gioro clan, we conducted whole Y-chromosome sequencing on three samples and Y-single-nucleotide polymorphism (Y-SNP) genotyping on other four samples beside those reported in previous work. We confirmed that the paternal lineage of the Aisin Gioro clan belongs to haplogroup C3b1a3a2-F8951, a brother branch of C3*-Star Cluster (currently named as C3b1a3a1-F3796, once linked to Genghis Khan), which is quite different from the predominant lineage C3c-M48 in other Tungusic-speaking populations...
November 17, 2016: Journal of Human Genetics
https://www.readbyqxmd.com/read/27822080/plant-wealth-of-a-sacred-grove-mallur-gutta-telangana-state-india
#19
Sateesh Suthari, Ramesh Kandagalta, Ajmeera Ragan, Vatsavaya S Raju
The Mallur Gutta (Hill) of Warangal district in Telangana state, India, reputed as a habitat for medicinal plants, was inventoried from 2009 to 2015 for its plant wealth through the traditional knowledge of the local people. The Hindu temples of Lord Sri Laxminarasimha Swamy and Lord Hanuman, and the ethnic worship of mahua trees indicated it was a sacred grove which was selected as a Medicinal Plants Conservation Area. The exploration of Mallur Gutta resulted in the enumeration and documentation of plant wealth representing 470 species of 318 genera pertaining to 95 families of vascular plants...
2016: International Journal of General Medicine
https://www.readbyqxmd.com/read/27821901/diffusion-archeology-for-diffusion-progression-history-reconstruction
#20
Emre Sefer, Carl Kingsford
Diffusion through graphs can be used to model many real-world processes, such as the spread of diseases, social network memes, computer viruses, or water contaminants. Often, a real-world diffusion cannot be directly observed while it is occurring - perhaps it is not noticed until some time has passed, continuous monitoring is too costly, or privacy concerns limit data access. This leads to the need to reconstruct how the present state of the diffusion came to be from partial diffusion data. Here, we tackle the problem of reconstructing a diffusion history from one or more snapshots of the diffusion state...
November 2016: Knowledge and Information Systems
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