The plant landscape of the imperial harbour of Rome

The research concerns the Tiber delta area, about 3 km far from the present seacoast, where the remains of the ancient harbour of Rome are located. In 42 AD, Claudius started the construction of the harbour and Nero completed it in 64 AD. Then, the emperor Trajan went on to add a hexagonal basin to the former structure, which had gradually silted up. The imperial harbour was connected to the Tiber River and ultimately to the city of Rome through the Trajan channel. During the imperial period, most of the supplies imported from the Mediterranean provinces reached the city of Rome through Portus.     

New Evidence for the Submerged Ancient Harbour Structures at Tolmetha and Leptis Magna,Libya

Surveys carried out in 2009, during a project for the creation of three underwater archaeological parks in Libya, have allowed archaeologists both to analyse already known ancient structures and to discover new evidence about the harbour areas of the ancient cities of Tolmetha and Leptis Magna. © 2012 The Author     

A Presumed Hydraulic Apparatus for the Transport of Live Fish,Found on the Roman Wreck at Grado,Italy

The Roman wreck found off Grado, not far from the city of Aquileia in the north Adriatic Sea, was recovered in 1999. The ship carried various kinds of amphoras with processed fish. A lead pipe, inserted in the hull near the keel, is curious evidence which the authors try to explain. The pipe could be connected to a piston‐pump to suck water. A theoretical reconstruction demonstrates how this apparatus could work and that it could be used to feed a tank to allow trading in live fish over a long distance. © 2011 The Authors     

Constant and Variable Amplitude Cyclic Behavior of Welded Steel Beam-to-Column Connections

This article presents a study on welded beam-to-column joints of moment-resisting steel frames. The main features of the joint specimens are summarised, in order to identify key parameters influencing the joint response as well as their low-cycle fatigue endurance. The cyclic behavior and the low-cycle fatigue strength of the connections were initially assessed by cyclic quasi-static testing, carried out at the Technical University of Milan. Analysis of the results has been carried out in order to verify the validity of a linear damage accumulation model combined with a low-cycle fatigue approach based on S-N lines concept. Moreover, a criterion to predict the type of failure and a procedure of appraising the fatigue endurance are presented and their validity proved by the results of variable amplitude tests.     

Fragments of Boats from the Canale Anfora of Aquileia,Italy, and Comparison of Sewn‐Plank Ships in the Roman Era

Fragments of Roman sewn‐plank boats have been found, during rescue excavations, in the Canale Anfora, an artificial channel used by Roman ships to enter the Roman city of Aquileia. Remains were found in both 1988 and 2005 at the same site. Elements of what were probably two boats are analysed and compared to other finds of Roman sewn boats found along the coast of the Veneto and Friuli Venezia Giulia regions. They are evidence of the use of this technique, instead of the more widespread mortise‐and‐tenon system, in the quite limited area of the Northern Adriatic. These boats were used both for inland and for maritime navigation.     

Habsburg Italy in the age of reform

This essay surveys the main reforms carried out by the Habsburg governments in Lombardy and Tuscany from the 1730s to around 1790 in the light of recent historical literature. Venturi's biographical approach to the theme is discussed in the first part of the essay, which then sets out to compare reforming activities in the two states in the fields of the administration of justice, ecclesiastical policy, and public finance. The drive towards centralization and uniformity is identified as the main aspect of the Milan reform movement, to the liberal and humanitarian tendencies of Peter Leopold's government in Tuscany.     

The origins of the Brazilian nuclear programme, 1951–1955

In the early years of the atomic era, several developing countries attempted to establish a nuclear programme, yet Brazil's case is less well-known. As new documents show, from 1951 Brazil aimed to acquire the nuclear fuel cycle capability in spite of legislation imposed by the United States to limit the emergence of new nuclear powers. This article will analyse the origins of the Brazilian nuclear programme from 1951 to 1955 and will explore its cooperation in the atomic field with international partners.