O n the surface it seems implausible that a colonial scientist could be characterized as a mathematician by today’s standards. Yet the single aim of this note is to provide evidence that two of David Rittenhouse’s papers from 220 years ago qualify him as a modern analyst. Rittenhouse (1732–1796) had no formal education and never earned a degree. Except for a brief appointment as professor of as...

Since early in this century, health insur­ ance coverage has been an important issue in the United States. The first coordinated efforts to establish government health in­ surance were initiated at the State level be­ tween 1915 and 1920. However, these ef­ forts came to naught. Renewed interest in government health insurance surfaced at the Federal level during the 1930s, but nothing concrete ...

FRANCIS HITCHING, Earth magic, London, Cassell, 1976, 8vo, pp. xiv, 196, illus., £4.50. For centuries the stone circles, barrows, dolmens and hill "forts" that are found in Northern Europe and Britain have attracted continual attention and bitter controversy. They mostly date from the fifth to second centuries B.C. and many of them have been shown to have acted as calendars and prognosticators ...

The archaeological site at Burnum is the subject of scientific research conducted since 2003 in the area of the ancient agglomeration by the members of the Chair of Ancient Archaeology of the Department of Archaeology of the University of Zadar, accompanied by partners--Krka National Park, City Museum of Drnis and Laboratory of Archaeological and Topographic Survey of the Department of Archaeol...

yet to be identified. Like their mammalian counterparts, There has been rapid growth in our understanding of the invertebrate ErbB receptors also signal primarily neuregulins (NRGs), a large group of structurally related through the Ras-Raf-MAP-kinase pathway. In both inpolypeptide factors, and their receptors, four transmemvertebrates and mammals, the signaling module is necbrane tyrosine kina...

Résumé. Une tâche importante en analyse des données est la compréhension de comportements inattendus ou atypiques de groupes d’individus. Quelles sont les catégories d’individus qui gagnent de particulièrement forts salaires ou au contraire, quelles sont celles qui ont de très faibles salaires ? Nous présentons le problème d’extraction de tels groupes atypiques vis-à-vis d’une variable cible qu...

In the early centuries ce, Roman state attempted to monitor, tax, and protect traders travelers crossing Eastern Desert (against potentially dangerous barbaroi). These were operating from sites like Berenike Myos Hormos, key ports for Red Sea branch of Indian Ocean trade. Conversely, during course third century, this situation changed. The praesidia (small forts) lining these routes abandoned, ...

Abstract The Lower Rhine region was of crucial importance for the Roman empire as a transit zone from Gaul to North Sea. river functioned both transport artery and defence line. Huge investments were made in first century CE protect this economic lifeline, by installing line forts legionary camps along Cologne up Sea, known Germanic limes . Unlike areas further south, however, its hinterland di...