Investigating pottery vessel manufacturing techniques using radiographic imaging and computed tomography: Studies from the Late Archaic American Southeast

2016 ◽  
Vol 9 ◽  
pp. 586-598 ◽  
Author(s):  
Matthew C. Sanger
Keyword(s):  
Computed Tomography ◽  
Radiographic Imaging ◽  
Late Archaic ◽  
American Southeast ◽  
Manufacturing Techniques

Archaic Period Canoes from Newnans Lake, Florida

2003 ◽  
Vol 68 (3) ◽  
pp. 533-551 ◽  
Author(s):  
Ryan J. Wheeler ◽  
James J. Miller ◽  
Ray M. McGee ◽  
Donna Ruhl ◽  
Brenda Swann ◽  
...  
Keyword(s):  
Archaic Period ◽  
Lake Levels ◽  
Late Archaic ◽  
Freshwater Resources ◽  
Boat Building ◽  
Water Tables ◽  
Dugout Canoes ◽  
Manufacturing Techniques

Low lake levels, due to drought in spring and summer 2000, revealed the decayed remnants of over 100 dugout canoes buried in the sediments of Newnans Lake near Gainesville, Florida. Radiocarbon assays revealed that 41 of 55 canoes studied were from the Late Archaic period, dating between 2300 and 5000 B.P. Analysis of canoe form and comparison to the small number of other known Florida Archaic period canoes correct previous ideas about early canoes. Patterns of wood choice and manufacturing techniques known from younger canoes were in place during the Late Archaic. The Archaic period canoes from Newnans Lake are indistinguishable from canoes produced in later periods and are not the crude, short, blunt-ended type thought to represent the earliest dugout canoes. Thwarts or low partitions on almost half of the Archaic canoes studied confirm a long temporal span to the canoe-making tradition of peninsular Florida. Middle and Late Archaic groups had boat-building and related technologies in place 7,000 years ago and were expanding into areas with newly emerging freshwater resources created by higher water tables.

scholarly journals Comparison distortion in the mandible skull using panoramic digital radiograpy and Cone Beam Computed Tomography

2016 ◽  
Vol 28 (1) ◽  
Author(s):  
Cek Dara Manja
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Panoramic Radiography ◽  
Three Dimensional ◽  
Cone Beam ◽  
Radiographic Imaging ◽  
Panoramic Radiographs ◽  
Minimal Distortion ◽  
Digital Panoramic Radiography ◽  
Actual Size

Panoramic radiography is widely used as a tool supporting the diagnosis in dental practice. Currently the technology has evolved with the presence of radiographic imaging such as Cone Beam Computed Tomography (CBCT) that displays a three-dimensional picture. The purpose of this study was to determine large distortions that occur several regio in the mandible using digital panoramic radiographs and CBCT. Method experimental The research on one of the skull laboratories fitted staples vertically and horizontally in alveolar regions 31, 33, 35, 37, 41, 43, 45, 47, and then measured the length of the staples using the term digital. Furthermore, digital panoramic radiography performed with position 00, +50, +100, -50, -100 and CBCT radiography with 00 positions. Measurement description of radiopaque vertical and horizontal lines on digital panoramic radiographs and CBCT are computerized using the EZ software measurement menu. Calculating percentage distortion radiopaque overview of vertical and horizontal lines on digital panoramic radiographs and CBCT of the mandible by doing a comparison of the actual size of the skull. The results obtained on the percentage of minimal distortion of digital panoramic radiographs vertically was in the 31 region positioned +50at 0,23%, in the 33 region positioned 00at 5,99%, in the 35 region positioned -100at -6,33%, in the 37 region positioned +100at -1,46%, in the 41 region positioned -50at 0,46%, in the 43 region positioned 00at 0,52%, in the 45 region positioned +100at -0,45%, in the 47 region positioned +100at -4,76%. The percentage of minimal distortion of digital panoramic radiographs horizontally all of region was positioned 00. The percentage of minimal distortion of  CBCT all of region was positioned 00 and different on each mandible alveolar region. The conclusion of this study is average distortion that occurs in the mandible using CBCT is more less than digital panoramic radiographs. That is mean CBCT more accurate than digital panoramic radiographs.

EVIDENCE FOR SIGNIFICANT SUBTERRANEAN STORAGE AT TWO HUNTER-GATHERER SITES: THE PRESENCE OF A MAST-BASED ECONOMY IN THE LATE ARCHAIC COASTAL AMERICAN SOUTHEAST

2017 ◽  
Vol 82 (1) ◽  
pp. 50-70 ◽  
Author(s):  
Matthew C. Sanger
Keyword(s):  
Large Scale ◽  
Cultural Identities ◽  
Social Changes ◽  
Late Archaic ◽  
Time Period ◽  
American Southeast ◽  
Potential Factor ◽  
Shell Rings

Excavations at two Late Archaic shell rings on St. Catherines Island, Georgia, revealed evidence of significant amounts of subterranean storage. Based on botanical evidence, ethonographic analogies, and interpretations of other Late Archaic sites, hickory nuts and acorns are the most likely resource being stored, and quantifying the capacity found at each ring highlights the prevalence and importance of mast storage. These findings are important because large-scale storage has rarely been proposed for Late Archaic coastal peoples and, therefore, its impact as a potential factor for social changes enacted during this time period, including increasing sedentism, formalization of intragroup relations, and regionalization of cultural identities, has yet to be explored.

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