Explore the vast range of titles available.

Palabras clave Anfora; cronolog a; campamentos militares; limes; epigraf a. Abstract Traditionally, the olive oil amphoras Dressel 20 have been explicitly dated through various means, the most common being the class of associated epigraphy: stamps, titulus pictus or graphite, the typological analysis of the object, or the archaeological context. During the last years, under the EPNet Project (ERC-2013-ADG-340 828), we did a review of the materials contained in the CEIPAC database. The study of the various military camps with well-defined timelines allows us to establish various dating proposals for those known brands of food containers that were lacking, chronology so far. En ella suele aparecer ocasionalmente la titulatura consular como parte del control aduanero fiscal ejercido por Roma, con lo que podemos conocer el a o en el cual ese objeto fue producido y comercializado, lo que indirectamente nos ayuda a contextualizar cronol gicamente un nivel arqueol gico, de ah la importancia de estas inscripciones sobre las nforas.

The number of the main macro-invertebrate species grazing on the microalgal film on rocky coasts was evaluated at six closely located stations on Mallorca (Balearic Islands). The main bioerosive species at the sites studied were Melaraphe neritoides (L., 1758), Patella rustica (L., 1758), Monodonta turbinata (Born, 1780) and Lepidochitona corrugata (Reeve, 1848). The transects considered shared the same general environmental conditions and species pool. The aim of this study was to compare the effects exerted by the vertical gradient with those exerted by other sets of environmental variables. These sets were, namely, (1) inter-seasonal differences, (2) inter-transect differences (comprising degree of wave-exposure and lithological differences) and (3) effects of the micro-morphology (i.e., crevices, basin pools and other small-scale structures). The main null hypothesis verified was that species composition remains constant after assessing the effect of the vertical gradient. This hypothesis is largely rejected here. The main factor modelling the species composition was the vertical gradient (accounting for 31.6% of variability) whereas the percentages of variability yielded by the other sets individually were smaller but significant (P<0.001). Inter-transect differences (including degree of wave exposure and lithology) accounted for 24.9% of the variability. Seasonal differences accounted for 6.3%, small-scale morphology for 4.5%, and wave-height for 1.6%. The main conclusions obtained from these results are that the most basal strip of the coastline undergoes the largest bioerosive rates. Similarly, the sites exposed to wave action will undergo a larger bioerosive impact than the sheltered sites (possibly because they are more damp). These biotic and abiotic effects taken together would result in a maximisation of erosion rates in areas that are porous, exposed and located near the sea.

Ce travail résume brièvement les différentes opinions que les chercheurs marocains, français et espagnols ont émises au sujet de deux problèmes concrets de l'économie de la Maurétanie Tingitane : pourquoi a-t-elle a importé des amphores à huile Dressel 20, alors qu'elle était une province productrice d'huile d'olive? Dans quel conteneur amphorique fut exportée l'énorme quantité de salaisons de Tingitane. De nouvelles hypothèses sont proposées. This work summarizes the different positions maintained by Moroccan, French and Spanish researchers on two specific economic issues of the Mauretania Tingitana: why Tingitana, being a producing oil province, imports oil amphoras Dressel 20? Which anphoric container were used to export the enormous amount of salted fish products from Tingitana? New hypotheses are proposed.

We have designed and built a large-throughput dual channel photometer, Diabolo. This photometer is dedicated to the observation of millimetre continuum diffuse sources, and in particular, of the Sunyaev-Zel'dovich effect and of anisotropies of the 3K background. We describe the optical layout and filtering system of the instrument, which uses two bolometric detectors for simultaneous observations in two frequency channels at 1.2 and 2.1 mm. The bolometers are cooled to a working temperature of 0.1 K provided by a compact dilution cryostat. The photometric and angular responses of the instrument are measured in the laboratory. First astronomical light was detected in March 1995 at the focus of the new Millimetre and Infrared Testa Grigia Observatory (MITO) Telescope. The established sensitivity of the system is of 7 mK_RJ s^1/2$. For a typical map of at least 10 beams, with one hour of integration per beam, one can achieve the rms values of y_SZ ~ 7 10^-5 and the 3K background anisotropy Delta T/T ~ 7 10^-5, in winter conditions. We also report on a novel bolometer AC readout circuit which allows for the first time total power measurements on the sky. This technique alleviates (but does not forbid) the use of chopping with a secondary mirror. This technique and the dilution fridge concept will be used in future scan--modulated space instrument like the ESA Planck mission project.