Recently, the problem of ethnicity has been one of the most widely discussed topics in early medieval studies. From the historian's perspective, the discussion on ethnicity owes its decisive impulse to Reinhard Wenskus (1961; his approach was elaborated in the monographs by Herwig Wolfram in 1979 and Walter Pohl in 1988). Traditional research has taken the meaning of the terms "people" or "trib...

Models of confirmatory factor analysis (CFA) are frequently applied to examine the convergent validity of scores obtained from multiple raters or methods in so-called multitrait-multimethod (MTMM) investigations. We show that interesting incremental information about method effects can be gained from including mean structures and tests of MI across methods in MTMM models. We present a modeling ...

Previous studies have shown the superior competitive ability of honeybees compared with native bees in the exploitation of floral resources and nesting sites besides their low efficiency in pollinating native plant species. However, there is little evidence of the effect of this invading species on autochthonous plant populations in natural environments. Thus experiments were performed to test ...

The relative growth of the fiddler crab Uca sindensis in Pohl Port was studied. Ten 0.5 m2 quadrates were randomly sampled monthly during low tide periods from October 2009 to September 2010. A total of 840 crabs, 449 (53.45%) males and 391(46.5%) ‌ females, were sampled. The Carapace width of males ranged from 5.5 to13.5 mm (mean ± SD) (8.92 ± 2.04), and of females from 5.0 to 11.5 mm (mean ± ...

The mechanisms leading to increased genetic risks for offspring of older fathers have received increased scrutiny with improvements in genomics technologies. For example, there is now convincing genetic evidence that, aside from the approximately linear increase in paternally originating point mutations with age (Kong et al., 2012; Rahbari et al., 2016), there is a steeper age rise for a small ...

Alessandro Attanasi∗,‡, Andrea Cavagna∗,‡, Lorenzo Del Castello ∗,‡, Irene Giardina∗,‡, Tomas S. Grigera, Asja Jelić∗,‡, Stefania Melillo∗,‡, Leonardo Parisi∗,§, Oliver Pohl∗,‡, Edward Shen∗,‡, Massimiliano Viale∗,‡ ∗ Istituto Sistemi Complessi, Consiglio Nazionale delle Ricerche, UOS Sapienza, 00185 Rome, Italy ‡ Dipartimento di Fisica, Università Sapienza, 00185 Rome, Italy [ Instituto de Inv...