نتایج جستجو برای: from ancient times
تعداد نتایج: 5773605 فیلتر نتایج به سال:
Identifying general patterns of colonization and radiation in island faunas is often hindered by past human-caused extinctions. The insular Caribbean is one of the only complex oceanic-type island systems colonized by land mammals, but has witnessed the globally highest level of mammalian extinction during the Holocene. Using ancient DNA analysis, we reconstruct the evolutionary history of one ...
The recent recovery of ancient DNA from a growing number of human samples shows that mitochondrial DNA haplogroup I was introduced to Europe after the end of the Last Glacial Maximum. This paper provides a spatio-temporal analysis of the various subhaplogroups of mitochondrial DNA I. The study suggests that haplogroup I diversified into haplogroups I1, I2’3, I4 and I5 at specific regions in Eur...
the present paper deals with criminal issues. for example, legal injunction on the necessity of returning a deposit has a legal nature and legal injunction on the punishment of those who breach the trust has a criminal nature. existing social issues are the basis of classification of some instances into the issue, some of which are based on variation and others on quality. therefore, the motiva...
Hunting was one of the most important aspects of human life in ancient times; when human considered hunting as an aspect of his own subsistence strategy and his life was dependant on it. As time goes by, the importance of this subsistence aspect reduces; so that special places were considered as a hunting ground for entertainment. With the arrival of Islam in Iran, this process continued ...
Poor DNA preservation is the most limiting factor in ancient genomic research. In the majority of ancient bones and teeth, endogenous DNA molecules represent a minor fraction of the whole DNA extract, rendering shot-gun sequencing inefficient for obtaining genomic data. Based on ancient human bone samples from temperate and tropical environments, we show that an EDTA-based enzymatic 'pre-digest...
This paper considers pollution/toxicological science in an archaeological context. Copper mining was an important activity in southern Jordan, especially during the Bronze Age, Nabatean, Roman, and Byzantine periods, and the environmental legacy of such intensive mining and smelting activities exists today in the form of massive, ancient spoil and smelting tips. The environment was heavily poll...
Ancient Chinese fresco painting has a long history and is one of the important art forms traditional painting. As genre in China, realistic always adhered to spirit times. This paper examines relationship between ancient modern painting, summarising artistic characteristics from three perspectives: composition, materials, technique style, exploring inheritance development on
The curse of ancient Egyptian DNA was lifted by a recent study which sequenced the mitochondrial genomes (mtGenome) of 90 ancient Egyptians from the archaeological site of Abusir el-Meleq. Surprisingly, these ancient inhabitants were more closely related to those from the Near East than to contemporary Egyptians. It has been accepted that the timeless highway of the Nile River seeded Egypt with...
since its birth in ancient greece, tragedy as an important dramatic form has always attracted the attention of those who have a tragic sense of life. although many scholars of tragedy put forward a bleak view regarding the possibility for the continuance of tragedy in modern times, two great dramatists, henrik ibsen and anton chekhov, showed that tragedy can still be created in modern times pro...
Studies continue to report ancient DNA sequences and viable microbial cells that are many millions of years old. In this paper we evaluate some of the most extravagant claims of geologically ancient DNA. We conclude that although exciting, the reports suffer from inadequate experimental setup and insufficient authentication of results. Consequently, it remains doubtful whether amplifiable DNA s...
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