نتایج جستجو برای: ancient oriented
تعداد نتایج: 166787 فیلتر نتایج به سال:
Methodologies are one of the most significant key factors to the success of project development. Since there is no single methodology that can be uniquely pointed as “the best", the discipline of situational method engineering (SME) promotes the idea of creating method components, rather than complete methodologies, and tailoring them to specific situations at hand. In this paper we present a h...
PCR analyses of ancient and degraded DNA suffer from their extreme sensitivity to contamination by modern DNA originating, in particular, from carryover contamination with previously amplified or cloned material. Any strategy for limiting carryover contamination would also have to be compatible with the particular requirements of ancient DNA analyses. These include the need (i) to amplify short...
Studies of DNA from ancient samples provide a valuable opportunity to gain insight into past evolutionary and demographic processes. Bayesian phylogenetic methods can estimate evolutionary rates and timescales from ancient DNA sequences, with the ages of the samples acting as calibrations for the molecular clock. Sample ages are often estimated using radiocarbon dating, but the associated measu...
The field of ancient DNA (aDNA) has recently been in a state of exponential growth, largely driven by the uptake of Next Generation Sequencing (NGS) techniques. Much of this work has focused on the mammalian megafauna and ancient humans, with comparatively less studies looking at micromammal fauna, despite the potential of these species in testing evolutionary, environmental and taxonomic theor...
Working together in groups may be beneficial if compared to isolated efforts. Yet this is true only if all group members contribute to the success. If not, group efforts may act detrimentally on the fitness of their members. Here we study the evolution of cooperation in public-goods games on scale-free networks that are subject to deletion of links connected to the highest-degree individuals, i...
Between 1500 and 1850, more than 12 million enslaved Africans were transported to the New World. The vast majority were shipped from West and West-Central Africa, but their precise origins are largely unknown. We used genome-wide ancient DNA analyses to investigate the genetic origins of three enslaved Africans whose remains were recovered on the Caribbean island of Saint Martin. We trace their...
Intorduction: It is necessary to notice the subjective well-being and satisfaction of human resources in organizations and lack of attention to them has deleterious effects on individual and organizational performance. Method: The present study is a mixed (qualitative and quantitative) research which used the Q approach to examine and explain managers’ mental patterns regarding Subjective We...
Intorduction: It is necessary to notice the subjective well-being and satisfaction of human resources in organizations and lack of attention to them has deleterious effects on individual and organizational performance. Method: The present study is a mixed (qualitative and quantitative) research which used the Q approach to examine and explain managers’ mental patterns regarding Subjective We...
hedging is a multi-purpose rhetorical strategy which is usually used in scientific arguments to secure ratification of claims, reduce the risk of negation, avoid conflict, manage disagreement and leave room for the audience to assess presented information. hedges are frequently used in research articles to mitigate the findings of research endeavors. the present research aims to investigate the...
The applications ORPHEUS and ARION have been presented to vast audiences during the International Fair of Thessaloniki between 8-17 September 2006. They were presented in international conferences, in nation-wide radio emissions, in newspaper and magazine articles. ORPHEUS has been supported by the “HERMES”1 project, while ARION is under the auspices of the SEEArchWeb2 project. ORPHEUS is an in...
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