Mostrando 1,881 - 1,900 Resultados de 3,062 Para Buscar '"archaeology"', tiempo de consulta: 8.34s Limitar resultados
  1. 1881
    “…Coalescence modeling reveals the speciation of S. mansoni and S. rodhaini as 107.5–147.6KYA, a period which overlaps with the earliest archaeological evidence for fishing in Africa. Our results indicate that S. mansoni originated in East Africa and experienced a decline in effective population size 20–90KYA, before dispersing across the continent during the Holocene. …”
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  2. 1882
    “…To understand these periodicities, we analyzed 29,311 archaeological tree-ring dates from A.D. 500 to 1400 in the context of a novel high spatial resolution, annual reconstruction of the maize dry-farming niche for this same period. …”
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  3. 1883
    “…The dataset and model represent a baseline for future archaeological studies, avoiding the complex conversions from skeletal to water δ(18)O values–a process known to be problematic.…”
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  4. 1884
    “…The very high frequency of Trichuris sp. eggs in Roman archaeological sites (up to 80%) suggests that fecal peril, hygiene, and waste management were problematic during this period. …”
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  5. 1885
    por Mallick, Swapan, Li, Heng, Lipson, Mark, Mathieson, Iain, Gymrek, Melissa, Racimo, Fernando, Zhao, Mengyao, Chennagiri, Niru, Nordenfelt, Susanne, Tandon, Arti, Skoglund, Pontus, Lazaridis, Iosif, Sankararaman, Sriram, Fu, Qiaomei, Rohland, Nadin, Renaud, Gabriel, Erlich, Yaniv, Willems, Thomas, Gallo, Carla, Spence, Jeffrey P., Song, Yun S., Poletti, Giovanni, Balloux, Francois, van Driem, George, de Knijff, Peter, Romero, Irene Gallego, Jha, Aashish R., Behar, Doron M., Bravi, Claudio M., Capelli, Cristian, Hervig, Tor, Moreno-Estrada, Andres, Posukh, Olga L., Balanovska, Elena, Balanovsky, Oleg, Karachanak-Yankova, Sena, Sahakyan, Hovhannes, Toncheva, Draga, Yepiskoposyan, Levon, Tyler-Smith, Chris, Xue, Yali, Abdullah, M. Syafiq, Ruiz-Linares, Andres, Beall, Cynthia M., Di Rienzo, Anna, Jeong, Choongwon, Starikovskaya, Elena B., Metspalu, Ene, Parik, Jüri, Villems, Richard, Henn, Brenna M., Hodoglugil, Ugur, Mahley, Robert, Sajantila, Antti, Stamatoyannopoulos, George, Wee, Joseph T. S., Khusainova, Rita, Khusnutdinova, Elza, Litvinov, Sergey, Ayodo, George, Comas, David, Hammer, Michael, Kivisild, Toomas, Klitz, William, Winkler, Cheryl, Labuda, Damian, Bamshad, Michael, Jorde, Lynn B., Tishkoff, Sarah A., Watkins, W. Scott, Metspalu, Mait, Dryomov, Stanislav, Sukernik, Rem, Singh, Lalji, Thangaraj, Kumarasamy, Pääbo, Svante, Kelso, Janet, Patterson, Nick, Reich, David
    Publicado 2016
    “…We show that the ancestors of some pairs of present-day human populations were substantially separated by 100,000 years ago, well before the archaeologically attested onset of behavioral modernity. …”
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  6. 1886
    “…Previous workers have speculated that sheep may have been present in China up to 7000 years ago, however many claims are based on associations with archaeological material rather than independent dates on sheep material. …”
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  7. 1887
    “…Proteomic analysis of dental calculus is emerging as a powerful tool for disease and dietary characterisation of archaeological populations. To better understand the variability in protein results from dental calculus, we analysed 21 samples from three Roman-period populations to compare: 1) the quantity of extracted protein; 2) the number of mass spectral queries; and 3) the number of peptide spectral matches and protein identifications. …”
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  8. 1888
    “…However, they add nuance to this model, showing that the eastern affinities of the GAC in the archaeological record reflect cultural influences from other groups from the East, rather than the movement of people.…”
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  9. 1889
  10. 1890
    “…Based on lake sediment data, archaeological findings, and historical records, we describe rapid transformations, resilience and resistance in societies and ecosystems, and their interactions in the past in the North Water area related to changes in climate and historical events. …”
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  11. 1891
    “…We conducted an in-depth study of archaeological ornaments using microstructural, geochemical and biomolecular analyses, including ‘palaeoshellomics’, the first application of palaeoproteomics to mollusc shells (and indeed to any invertebrate calcified tissue). …”
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  12. 1892
    “…While the punctuated equilibrium model has been employed in paleontological and archaeological research, it has rarely been applied for technological and social evolution in the Holocene. …”
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  13. 1893
    “…Collagen preservation between and within archaeological sites is also variable, so that much time, effort, and money can go into the preparation and initial analysis of samples that will not yield meaningful results. …”
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  14. 1894
    “…The combination of archaeological and experimental results allowed us to isolate specific marks linked to dry skin removal and determine a low rate of marrow fat degradation of up to 9 weeks of exposure. …”
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  15. 1895
    “…We explore the stratigraphy of this site through analyses of the lithology and geochemistry of sediments, radiocarbon dating of faunal and human remains and charcoals, and archaeological study, as well as the paleoecology derived from the taxonomic composition of fossil faunal assemblages. …”
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  16. 1896
    “…This unexpected finding demonstrates that earlier knowledge obtained from textual and other archaeological sources does not sufficiently reflect the diversity of mummification protocols implemented by Ancient Egyptians.…”
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  17. 1897
    por Hughes, J. Donald
    Publicado 2012
    “…Two case studies offer eyewitness accounts of disaster, as well as archaeological and scientific studies. These are the plague that struck Athens in 430 BCE during the Peloponnesian War, described by Thucydides who witnessed and suffered from it, and the eruption of Vesuvius in 79 CE, recorded in letters by Pliny the Younger, who saw it and fled from it during its height. …”
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  18. 1898
    “…Advances in NGS sequencing technologies, improved laboratory protocols and new bioinformatic workflows have seen huge increases in ancient DNA (aDNA) research on archaeological materials. A large proportion of aDNA work now utilizes the petrous portion of the temporal bone (pars petrosa), which is recognized as an excellent skeletal element for long-term ancient endogenous (host) DNA survival. …”
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  19. 1899
  20. 1900
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