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      Confusing a Pollen Grain with a Parasite Egg: an Appraisal of “Paleoparasitological Evidence of Pinworm ( Enterobius Vermicularis) Infection in a Female Adolescent Residing in Ancient Tehran”

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          Abstract

          There is often the risk of confusing pollen grains with helminth eggs from archaeological sites. Thousands to millions of pollen grains can be recovered from archaeological burial sediments that represent past ritual, medication and environment. Some pollen grain types can be similar to parasite eggs. Such a confusion is represented by the diagnosis of enterobiasis in ancient Iran. The authors of this study confused a joint-pine ( Ephedra spp.) pollen grain with a pinworm egg. This paper describes the specific Ephedra pollen morphology that can be confused with pinworm eggs.

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          Cultural ecology of prehistoric parasitism on the Colorado Plateau as evidenced by coprology.

          K Reinhard (1988)
          The study of coprolites (desiccated feces) is recognized as a viable method for analyzing parasitism of prehistoric peoples. Eight species of helminth parasites, including nematodes, cestodes, and acanthcephalans, have been recovered from archaeological sites on the Colorado Plateau. The comparative analysis of parasitological findings illustrates the effects of changing subsistence strategies and varying life-style on prehistoric human parasitism. This comparative study is based on the analysis of coprolites recovered from one Archaic hunter-gatherer site and two Anasazi agricultural villages. Hunter-gatherers are represented by coprolites from Dust Devil Cave in south-eastern Utah. Coprolites of prehistoric agriculturalists from Antelope House in Canyon de Chelly, Arizona, and from Salmon Ruin in northwestern New Mexico were studied. The results demonstrate that helminth parasitism increased with the advent of agriculture. Between the agricultural sites, differences in patterns of excreta disposal, foraging behavior, and local ecology resulted in pronounced variations in both percentage of coprolites containing parasite remains and the number of parasite species represented.
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            500-year climate cycles stacking of recent centennial warming documented in an East Asian pollen record

            Here we presented a high-resolution 5350-year pollen record from a maar annually laminated lake in East Asia (EA). Pollen record reflected the dynamics of vertical vegetation zones and temperature change. Spectral analysis on pollen percentages/concentrations of Pinus and Quercus, and a temperature proxy, revealed ~500-year quasi-periodic cold-warm fluctuations during the past 5350 years. This ~500-year cyclic climate change occurred in EA during the mid-late Holocene and even the last 150 years dominated by anthropogenic forcing. It was almost in phase with a ~500-year periodic change in solar activity and Greenland temperature change, suggesting that ~500-year small variations in solar output played a prominent role in the mid-late Holocene climate dynamics in EA, linked to high latitude climate system. Its last warm phase might terminate in the next several decades to enter another ~250-year cool phase, and thus this future centennial cyclic temperature minimum could partially slow down man-made global warming.
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              Pollen morphology ofEphedra(Gnetales) and its evolutionary implications

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                Author and article information

                Journal
                Korean J Parasitol
                Korean J. Parasitol
                The Korean Journal of Parasitology
                The Korean Society for Parasitology and Tropical Medicine
                0023-4001
                1738-0006
                December 2019
                31 December 2019
                : 57
                : 6
                : 621-625
                Affiliations
                [1 ]Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
                [2 ]School of Natural Resource Sciences, University of Nebraska, Lincoln, USA
                Author notes
                [* ]Corresponding author ( morganacamacho88@ 123456gmail.com )
                Article
                kjp-57-6-621
                10.3347/kjp.2019.57.6.621
                6960252
                31914514
                0709b520-f99f-4f01-a549-83047b8ecefa
                Copyright © 2019 by The Korean Society for Parasitology and Tropical Medicine

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 30 August 2019
                : 5 September 2019
                : 5 September 2019
                Categories
                Brief Communication

                Parasitology
                ephedra,enterobius egg,palynology,pollen,pinworm,archaeology
                Parasitology
                ephedra, enterobius egg, palynology, pollen, pinworm, archaeology

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