We investigate the origin of archaeological wool textiles preserved by anoxic waterlogging from seven medieval archaeological deposits in north-western Europe (c. 700-1600 AD), using geospatial patterning in carbon (δ13C), nitrogen (δ15N) and non-exchangeable hydrogen (δ2H) composition of modern and ancient sheep proteins. δ13C, δ15N and δ2H values from archaeological wool keratin (n = 83) and ...

an examination of historical text and archaeological data show that mehrjanqadhaq was one of the important states of western iran which had been founded and formed in a region now known as darreshsher or more exactly in saimara valley. the history of the state goes back to parthian era. archaeological data in confirmation of historical texts both indicate settlement sequence form parthian era t...

The mausoleum complex of the First Emperor of China, Qin Shi Huang (259-210 BC), is one of the most famous and important archaeological sites in China, yet questions remain as to how it was constructed and by whom. Here we present isotopic results of individuals from the Liyi (n = 146) and Shanren sites (n = 14), both associated with the mausoleum complex. Those buried at Liyi represent the loc...

Background and purpose: Research studies indicate that almost 80% of the present day drugs are derived directly or indirectly from medicinal plants. The estimation of a safe starting dose is a concern when a new substance is to be investigated including medicinal plants, in clinical and laboratory studies. This study was intended to explore a simple and reliable method of calculating the starti...

Humans use a variety of deliberate means to modify biologically rich environs in pursuit of resource stability and predictability. Empirical evidence suggests that ancient hunter-gatherer populations engineered ecological niches to enhance the productivity and availability of economically significant resources. An archaeological excavation of a 3800-year-old wetland garden in British Columbia, ...

recovering a part of the lost identity of iranian language and culture, the abbasid period is considered to have played an important role in persian language and history. the nationalist movement came to its maximum power in this period. the nationalists tried to prove the iranian talent the ancient persian civilization through a direct conflict by sword or pen. although both politics faced a s...

In the early 1990s, when studies of ancient DNA became possible, new perspectives of analyzing archaeological data also developed. Nowadays, because the methodology related to ancient DNA research is well developed, it has been used to reveal several aspects of human history and interaction. Here we review the basic concepts, methodologies, and recent developments in the fi eld of ancient DNA s...

Finding solutions to the entangled problems of human population growth, resource exploitation, ecosystem degradation, and biodiversity loss is considered humanity’s grand challenge. Small and isolated societies of the past, such as the Rapanui of Easter Island, constitute ideal laboratories for understanding the consequences of human-driven environmental degradation and associated crises. By in...