The original plan for Hadrian’s Wall: a new purpose for Pons Aelius?

2021 ◽  
Vol 178 (1) ◽  
pp. 107-145
Author(s):  
Erik P. Graafstal
Keyword(s):  
Original Plan ◽  
Hadrian's Wall

scholarly journals Adaptive planning based on single beam optimization in passive scattering carbon ion radiotherapy for patients with pancreatic cancer

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Yang Li ◽  
Yoshiki Kubota ◽  
Masahiko Okamoto ◽  
Shintaro Shiba ◽  
Shohei Okazaki ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Carbon Ion Radiotherapy ◽  
Adaptive Planning ◽  
Carbon Ion ◽  
Single Beam ◽  
Original Plan ◽  
Image Registration Algorithm ◽  
Passive Scattering ◽  
Accumulated Dose ◽  
Dose Difference

Abstract Background Daily anatomical deviations may distort the dose distribution in carbon ion radiotherapy (CIRT), which may cause treatment failure. Therefore, this study aimed to perform re-planning to maintain the dose coverage in patients with pancreatic cancer with passive scattering CIRT. Methods Eight patients with pancreatic cancer and 95 daily computed tomography (CT) sets were examined. Two types of adaptive plans based on new range compensators (RCs) (AP-1) and initial RCs (AP-2) were generated. In AP-2, each beam was optimized by manually adjusting the range shifter thickness and spread-out Bragg peak size to make dose reduction by < 3% of the original plan. Doses of the original plan with bone matching (BM) and tumor matching (TM) were examined for comparison. We calculated the accumulated dose using the contour and intensity-based deformable image registration algorithm. The dosimetric differences in respect to the original plan were compared between methods. Results Using TM and BM, mean ± standard deviations of daily CTV V95 (%) difference from the original plan was − 5.1 ± 6.2 and − 8.8 ± 8.8, respectively, but 1.2 ± 3.4 in AP-1 and − 0.5 ± 2.1 in AP-2 (P < 0.001). AP-1 and AP-2 enabled to maintain a satisfactory accumulated dose in all patients. The dose difference was 1.2 ± 2.8, − 2,1 ± 1.7, − 7.1 ± 5.2, and − 16.5 ± 15.0 for AP-1, AP-2, TM, and BM, respectively. However, AP-2 caused a dose increase in the duodenum, especially in the left–right beam. Conclusions The possible dose deterioration should be considered when performing the BM, even TM. Re-planning based on single beam optimization in passive scattering CIRT seems an effective and safe method of ensuring the treatment robustness in pancreatic cancer. Further study is necessary to spare healthy tissues, especially the duodenum.

Air Reconnaissance in Britain, 1955–7

1958 ◽  
Vol 48 (1-2) ◽  
pp. 86-101 ◽  
Author(s):  
J. K. St. Joseph
Keyword(s):  
The Body ◽  
New Knowledge ◽  
Hadrian's Wall

This paper brings up to date accounts of discoveries by air reconnaissance in the field of Romano-British studies already published in this Journal (JRS XLI, XLIII, and XLV). In the last few years nearly every major Roman site in Britain has been repeatedly reconnoitred from the air in a yearly course of flights especially planned for the purpose of research. The body of information thus obtained shows that even air survey conducted over several successive years does not exhaust the possibilities of acquiring new knowledge at places already known, while discovery of sites hitherto unrecognized continues apace. The incidence of the discoveries, however, proves to vary. Scrutiny of military sites in the area of Hadrian's Wall and its hinterland, which yielded so much information in the decade 1945–55, has in the last three years added comparatively little to the record.

Oxon Run Parkway: Paleontological resource inventory; supplement to the National Capital Parks-East paleontological resource inventory

2021 ◽  
Author(s):  
Margot Nelson ◽  
Michael Antonioni ◽  
Vincent Santucci ◽  
Justin Tweet
Keyword(s):  
Coastal Plain ◽  
District Of Columbia ◽  
Atlantic Coastal Plain ◽  
Natural Area ◽  
Original Plan ◽  
Resource Inventory ◽  
National Capital ◽  
Park Service ◽  
History Of ◽  
Atlantic Coastal

Oxon Run Parkway (OXRN) is a 51-hectare (126-acre) natural area within Washington, D.C. administered by the National Park Service under National Capital Parks East (NACE). The original plan called for a road, slated to follow Oxon Run stream, but this never came to fruition; despite this, the moniker stuck. The majority of the original Oxon Run Parkway is managed by the District of Columbia. The section of Oxon Run Parkway under NPS jurisdiction contains wetlands and forests, as well as the only McAteean magnolia bogs still remaining in the District. The lower Cretaceous Potomac Group, known as one of the few dinosaur-bearing rock units on the east coast of North America, crops out within Oxon Run. One of the most prevalent fossil-bearing resources are the siderite, or “bog iron” sandstone slabs that sometimes preserve the footprints or trackways of various vertebrates, including dinosaurs. Such trackways have been reported from Potomac Group outcrops throughout the Atlantic Coastal Plain of Maryland and Virginia. In 2019, National Capital Parks-East took possession of such a track, referred to a dinosaur, collected by paleontologist Dr. Peter Kranz. This report was compiled after a paleontological survey of Oxon Run Parkway and is intended as a supplement to the National Capital Parks East Paleontological Resource Inventory (Nelson et al. 2019). This report contains information on the history of Oxon Run Parkway and its geology, as well as discussion of the fossil track.

The Aschaffenburg model: addenda to JRA Suppl. 98

2018 ◽  
Vol 31 ◽  
pp. 267-284
Author(s):  
Anne Laidlaw
Keyword(s):  
Detailed Analysis ◽  
Three Dimensional ◽  
Full Description ◽  
Napoleonic Wars ◽  
Wall Paintings ◽  
Original Plan ◽  
Final Study ◽  
Main House

V. Kockel has discussed the model as one of the few surviving examples of a form of three-dimensional archaeological recording that was developed by the Padiglione family and other model-makers for the King of the Two Sicilies. Here I provide comparisons with the extant remains of the house, to illustrate how much more we can learn from the model of specific details of the structure and decoration that have been lost since 1840, when the building was still in a remarkably better state of preservation. Aside from the inevitable gradual deterioration of wall-paintings and pavements, which remained almost completely open to the elements after the original excavation was completed in 1809, a direct hit by a bomb on September 23, 1943, left the SE corner a mound of overgrown ruins. In 1970-72, when the Soprintendenza completely roofed the main house block, cleared the bomb rubble, and added low modern walls along the lines of the destroyed rooms to give tourists some idea of the original plan, I directed 37 soundings below the level of A.D. 79. Then between 2005 and 2007, as part of the Progetto Regio VI under F. Coarelli and F. Pesando, M. Stella and I added 17 more soundings, mainly in the area of the peristyle and on the S side of the house. Our final study of the house provided a detailed analysis of its original excavation during the Napoleonic Wars, a full description of the extant rooms and building history, and reports on our excavations.

ENGLAND 3. HADRIAN'S WALL

Britannia ◽  
2016 ◽  
Vol 47 ◽  
pp. 298-302
Author(s):  
Pete Wilson
Keyword(s):  
Hadrian's Wall

The Original Plan of the Erechtheum

1921 ◽  
Vol 25 (2) ◽  
pp. 130
Author(s):  
Charles Heald Weller
Keyword(s):  
Original Plan
Sign in / Sign up

Export Citation Format

Share Document