نتایج جستجو برای: abstractfrom ancient time
تعداد نتایج: 1923378 فیلتر نتایج به سال:
Research of ancient pathogens in ancient human skeletons has been mainly carried out on the basis of one essential historical or archaeological observation, permitting specific pathogens to be targeted. Detection of ancient human pathogens without such evidence is more difficult, since the quantity and quality of ancient DNA, as well as the environmental bacteria potentially present in the samp...
Some small-holders are able to generate reliable and substantial income flows through small-scale dairy production for the local market; for others, a set of unique transactions costs hinders participation. Cooperative selling institutions are potential catalysts for mitigating these costs, stimulating entry into the market, and precipitating growth in rural communities. Trends in cooperative o...
Abstract. In this paper we address the problem of protecting elliptic curve scalar multiplication implementations against side-channel analysis by using the atomicity principle. First of all we reexamine classical assumptions made by scalar multiplication designers and we point out that some of them are not relevant in the context of embedded devices. We then describe the state-of-the-art of at...
Most reconstruction methods for genomes of ancient origin that are used today require a closely related reference. In order to identify genomic rearrangements or the deletion of whole genes, de novo assembly has to be used. However, because of inherent problems with ancient DNA, its de novo assembly is highly complicated. In order to tackle the diversity in the length of the input reads, we pro...
Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada; Canadian Blood Services, Toronto, Canada; Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University & University Hospital Blood Centre, Lund, Sweden; Magen David Adom National Blood Services, Ramat Gan, Israel; Department of Medicine, University of Toronto, Toron...
Ancient DNA analyses have provided enhanced resolution of population histories in many Pleistocene taxa. However, most studies are spatially restricted, making inference of species-level biogeographic histories difficult. Here, we analyse mitochondrial DNA (mtDNA) variation in the woolly mammoth from across its Holarctic range to reconstruct its history over the last 200 thousand years (kyr). W...
Cosmetics is as old as the history of human being. It has been present in human life since the times of the most ancient civilizations. Perfumery is one of the oldest branches of cosmetics. Valerian perfumes found from the Pharaohs’ pyramids, had maintained their aroma. Coriander, Mace oil, cardamom, cinnamon, and juniper were also the favorite materials used for perfumery in ancient Egyptian c...
Herbaria archive a record of changes of worldwide plant biodiversity harbouring millions of specimens that contain DNA suitable for genome sequencing. To profit from this resource, it is fundamental to understand in detail the process of DNA degradation in herbarium specimens. We investigated patterns of DNA fragmentation and nucleotide misincorporation by analysing 86 herbarium samples spannin...
the expressions of “esoteric” and “esotericism” have a wide range of meanings, however, they specifically apply to religious, mystical, and philosophical secret schools. in ancient greek world, i.e. before the hellenistic era, we come across some currents with esoteric tendencies. the various texts from this period show that the ancient greeks sought the source of the esoteric currents outside ...
arsacid monarchy as the third iranian dynasty played an important role in the ancient era for five centuries. however, due to the inadequacy of written documents from that era, coins are considered precious sources for us to identify the political, historical, cultural, artistic, and religious views and ideas of that time, i.e. arsacid kings. concerning the similarities between the employed sym...
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