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Ostia in Late Antiquity
Ostia Antica was Rome's ancient harbor. Its houses and apartments, taverns and baths, warehouses, shops and temples have long contributed to a picture of daily life in ancient Rome. Recent investigations have revealed, however, that life in Ostia did not end with a bang but with a whimper. Only on the cusp of the Middle Ages did the town's residents entrench themselves in a smaller settlement outside the walls. What can this new evidence tell us about life in the later Roman Empire, as society navigated an increasingly Christian world? Ostia in Late Antiquity, the first academic study on Ostia to appear in English in almost 20 years and the first to treat the Late Antique period, tackles the dynamics of this transformative time. Drawing on new archaeological research, including the author's own, and incorporating both material and textual sources, it presents a social history of the town from the third through the ninth century.
eBook
Rome and environs
This superb guide brings the work of Filippo Coarelli, one of the most widely published and well-known scholars of Roman topography, archeology and art, to a broad English-language audience. Conveniently organized by walking tours and illustrated throughout with clear maps, drawings, and plans, Rome and Environs: An Archaeological Guide covers all of the major, and an unparalleled number of minor, ancient sites in the city, and, unlike most other guides of Rome, includes major and many minor sites within easy reach of the city, such as Ostia Antica, Palestrina, Tivoli, and the many areas of interest along the ancient Roman roads. An essential resource for tourists interested in a deeper understanding of Rome's classical remains, it is also the ideal book for students and scholars approaching the ancient history of one of the world's most fascinating cities. • Covers all the major sites including the Capitoline, the Roman Forum, the Imperial Fora, the Palatine Hill, the Valley of the Colosseum, the Esquiline, the Caelian, the Quirinal, and the Campus Martius. • Discusses important clusters of sites-one on the area surrounding Circus Maximus and the other in the vicinity of the Trastevere, including the Aventine and the Vatican. • Covers the history and development of the city walls and aqueducts. • Follows major highways leading outside of the city to important and fascinating sites in the periphery of Rome. • Features 189 maps, drawings, and diagrams, and an appendix on building materials and techniques. • Includes an updated and expanded bibliography for students and scholars of Ancient Rome.
eBook
Ostia Antica e le province africane: contatti, scambi, influenze ed eredità. Problematiche di studio e prospettive di valorizzazione
The essay is part of the studies regarding Ostia Antica, focused on its relations with African provinces – today in Tunisia – characterized by diversified influences, legacies, and cultural bonds. In Ostia, the intertwining of interests and cultures is also testified by various cults and religions coming from all over the Mediterranean Sea. The present study is aimed at highlighting Piazzale delle Corporazioni (Guild square) urban role: it is a structure built behind the theater scene, representing in ancient times a venue for a community including many different civilizations of foreign merchants, associated on the base of common ethnic or birthplace roots, to find their community trade. It was a meeting place where some North African and Tunisian communities established depots and warehouses to represent main shipping and trading companies from all over the Mediterranean Sea and African provinces: among these, the African naviculari, as Alexandria, Sabratha, and Carthage associations.
Journal Article
Seven-day sea surface temperature prediction using a 3DConv-LSTM model
Due to the application demand, users have higher expectations for the accuracy and resolution of sea surface temperature (SST) products. Recent advances in deep learning show great advantages in exploiting massive ocean datasets, and provides opportunities for investigating regional SST predictions in an efficiency approach. However, for deep learning-based SST prediction to be adopted by users, the output must be accurate. This paper investigates the 7-day SST prediction over the China seas and their adjacent waters at a 0.05° spatial resolution. To improve the prediction’s accuracy, we designed a deep learning model combining the three-dimensional convolution and long short-term memory under multi-input multi-output strategy. The Operational SST and Sea Ice Analysis (OSTIA) SST anomaly was used as training data. To test the model prediction ability, we verified the predicted results with the Sub-seasonal to Seasonal (S2S) prediction data from 2015 to 2019. Validation of the predicted SSTs using the OSTIA test datasets show that the root-mean-square error increases from 0.27°C to 0.53°C during the 1- to 7-day lead time, with predictability decreases from southeast to northwest in the study area. Furthermore, the comparison of predicted SST and S2S data with Argo shows that our model is slightly more accurate, which can achieve -0.08°C bias, with a standard deviation of 0.35°C for a 1-day lead time and -0.07°C bias, with a standard deviation of 0.59°C for a 7-day lead time. The results indicate that the proposed deep learning model is accurate and can be applied in regional daily SST prediction.
Journal Article
Deep Reinforcement Learning with Explicit Spatio-Sequential Encoding Network for Coronary Ostia Identification in CT Images
Accurate identification of the coronary ostia from 3D coronary computed tomography angiography (CCTA) is a essential prerequisite step for automatically tracking and segmenting three main coronary arteries. In this paper, we propose a novel deep reinforcement learning (DRL) framework to localize the two coronary ostia from 3D CCTA. An optimal action policy is determined using a fully explicit spatial-sequential encoding policy network applying 2.5D Markovian states with three past histories. The proposed network is trained using a dueling DRL framework on the CAT08 dataset. The experiment results show that our method is more efficient and accurate than the other methods. blueFloating-point operations (FLOPs) are calculated to measure computational efficiency. The result shows that there are 2.5M FLOPs on the proposed method, which is about 10 times smaller value than 3D box-based methods. In terms of accuracy, the proposed method shows that 2.22 ± 1.12 mm and 1.94 ± 0.83 errors on the left and right coronary ostia, respectively. The proposed method can be applied to the tasks to identify other target objects by changing the target locations in the ground truth data. Further, the proposed method can be utilized as a pre-processing method for coronary artery tracking methods.
Journal Article
Presenting a Long-Term, Reprocessed Dataset of Global Sea Surface Temperature Produced Using the OSTIA System
Over the past few decades, the oceans have stored the majority of the excess heat in the climate system resulting from anthropogenic emissions. An accurate, long-term sea surface temperature (SST) dataset is essential for monitoring and researching the changes to the global oceans. A variety of SST datasets have been produced by various institutes over the years, and here, we present a new SST data record produced originally within the Copernicus Marine Environment Monitoring Service (which is therefore named CMEMS v2.0) and assess: (1) its accuracy compared to independent observations; (2) how it compares with the previous version (named CMEMS v1.2); and (3) its performance during two major volcanic eruptions. By comparing both versions of the CMEMS datasets using independent in situ observations, we show that both datasets are within the target accuracy of 0.1 K, but that CMEMS v2.0 is closer to the ground truth. The uncertainty fields generated by the two analyses were also compared, and CMEMS v2.0 was found to provide a more accurate estimate of its own uncertainties. Frequency and vector analysis of the SST fields determined that CMEMS v2.0 feature resolution and horizontal gradients were also superior, indicating that it resolved oceanic features with greater clarity. The behavior of the two analyses during two volcanic eruption events (Mt. Pinatubo and El Chichón) was examined. A comparison with the HadSST4 gridded in situ dataset suggested a cool bias in the CMEMS v2.0 dataset versus the v1.2 dataset following the Pinatubo eruption, although a comparison with sparser buoy-only observations yielded less clear results. No clear impact of the El Chichón eruption (which was a smaller event than Mt. Pinatubo) on CMEMS v2.0 was found. Overall, with the exception of a few specific and extreme events early in the time series, CMEMS v2.0 possesses high accuracy, resolution, and stability and is recommended to users.
Journal Article
Aerial Ostia. Before and After E42
During the XXth century, numerous studies were carried out in the site of ancient Ostia, also thanks to the support of aerial photography. Starting from the “Topophotographich survey” realized by the Italian Army in 1911, up to the “Atlante di Ostia antica” realized in 1996, Ostia has become one of the most photographed from up high among archeological sites all around Italy. The analysis of aerial photographs allows to develop a research structured in two main branches: the study of the ancient city and of its urban development, and the transformation of the landscape conceived by archaeologists during the last century. Through aerial photographs it is possible to understand the impact of the extensive excavations carried out from 1938 onward under the will of the fascism on the occasion of the Universal Exhibition foreseen for 1942 in Rome (E42).
Journal Article
Rome’s urban history inferred from Pb-contaminated waters trapped in its ancient harbor basins
Heavy metals from urban runoff preserved in sedimentary deposits record long-term economic and industrial development via the expansion and contraction of a city’s infrastructure. Lead concentrations and isotopic compositions measured in the sediments of the harbor of Ostia—Rome’s first harbor—show that lead pipes used in the water supply networks of Rome and Ostia were the only source of radiogenic Pb, which, in geologically young central Italy, is the hallmark of urban pollution. High-resolution geochemical, isotopic, and 14C analyses of a sedimentary core from Ostia harbor have allowed us to date the commissioning of Rome’s lead pipe water distribution system to around the second century BC, considerably later than Rome’s first aqueduct built in the late fourth century BC. Even more significantly, the isotopic record of Pb pollution proves to be an unparalleled proxy for tracking the urban development of ancient Rome over more than a millennium, providing a semiquantitative record of the water system’s initial expansion, its later neglect, probably during the civil wars of the first century BC, and its peaking in extent during the relative stability of the early high Imperial period. This core record fills the gap in the system’s history before the appearance of more detailed literary and inscriptional evidence from the late first century BC onward. It also preserves evidence of the changes in the dynamics of the Tiber River that accompanied the construction of Rome’s artificial port, Portus, during the first and second centuries AD.
Journal Article
Novel Oronasal Drainage for Long COVID: Proposed Mechanisms—Case Report
Long COVID, potentially emerging post COVID-19 infection, involves extreme health challenges. Based on current literature in the field, we propose a novel approach to Long COVID treatment based on epipharyngeal abrasive therapy targeting ostia of the oral and nasal mucosa, having been identified for the first time. The presented case report documents the application of innovative oronasal drainage (OND), a novel treatment integrating physiological, biochemical, and fluid mechanical components simultaneously. OND led to remarkable improvements and even remissions of various symptoms, along with enhanced hand blood circulation. While the case suggests potential efficacy in Long COVID therapy, acknowledging inherent limitations is essential and its impact needs further validation through clinical trials.
Journal Article