Results 81 to 90 of about 30,743 (170)

Estimating the relative importance of demic and cultural diffusion in the spread of the Neolithic in Scandinavia [PDF]

open access: yesJournal of The Royal Society Interface, 2018
Using a database of early farming sites in Scandinavia, we estimate that the spread rate of the Neolithic was in the range 0.44–0.66 km yr −1 . This is substantially slower (by about 50%) than the rate in continental Europe.
Joaquim Fort   +2 more
openaire   +5 more sources

Re-analysis of Whole Genome Sequence Data From 279 Ancient Eurasians Reveals Substantial Ancestral Heterogeneity

open access: yesFrontiers in Genetics, 2018
Supervised clustering or projection analysis is a staple technique in population genetic analysis. The utility of this technique depends critically on the reference panel.
Daniel Shriner
doaj   +1 more source

Detecting Robust Patterns in the Spread of Epidemics: A Case Study of Influenza in the United States and France

open access: yes, 2008
In this paper, the authors develop a method of detecting correlations between epidemic patterns in different regions that are due to human movement and introduce a null model in which the travel-induced correlations are cancelled.
Barthélemy, Marc, Crépey, Pascal
core   +1 more source

“New Kids on the Block?” Reappraising Pottery Styles, aDNA, and Chronology from Western Iberia Early Neolithic

open access: yesOpen Archaeology, 2021
Western Iberia Early Neolithic has been described as an ultimate and very altered form of the Mediterranean Neolithisation process. Despite its Atlantic position, this territory – corresponding mainly to Central/Southern Portugal – is, in its physical ...
Diniz Mariana
doaj   +1 more source

Epidemic Spreading and Aging in Temporal Networks with Memory

open access: yes, 2018
Time-varying network topologies can deeply influence dynamical processes mediated by them. Memory effects in the pattern of interactions among individuals are also known to affect how diffusive and spreading phenomena take place. In this paper we analyze
Burioni, Raffaella   +5 more
core   +1 more source

Kinetic description of particle interaction with a gravitational wave [PDF]

open access: yes, 1997
The interaction of charged particles, moving in a uniform magnetic field, with a plane-polarized gravitational wave is considered using the Fokker-Planck- Kolmogorov (FPK) approach.
A. Anastasiadis   +24 more
core   +2 more sources

Complete mitochondrial genomes reveal neolithic expansion into Europe. [PDF]

open access: yesPLoS ONE, 2012
The Neolithic transition from hunting and gathering to farming and cattle breeding marks one of the most drastic cultural changes in European prehistory.
Qiaomei Fu   +3 more
doaj   +1 more source

A mathematically assisted reconstruction of the initial focus of the yellow fever outbreak in Buenos Aires (1871) [PDF]

open access: yes, 2013
We discuss the historic mortality record corresponding to the initial focus of the yellow fever epidemic outbreak registered in Buenos Aires during the year 1871 as compared to simulations of a stochastic population dynamics model.
Fernández, M. L.   +3 more
core   +3 more sources

The dynamical strength of social ties in information spreading

open access: yes, 2010
We investigate the temporal patterns of human communication and its influence on the spreading of information in social networks. The analysis of mobile phone calls of 20 million people in one country shows that human communication is bursty and happens ...
A. Barrat   +4 more
core   +1 more source

Coupling a branching process to an infinite dimensional epidemic process [PDF]

open access: yes, 2007
Branching process approximation to the initial stages of an epidemic process has been used since the 1950's as a technique for providing stochastic counterparts to deterministic epidemic threshold theorems.
Andrew D. Barbour   +9 more
core   +3 more sources

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