Design and evaluation of an Open Web Platform cartography lab curriculum

Recent shifts in web map technology away from proprietary software and toward development on the Open Web Platform have increased the number and complexity of technical skills needed to do cartography on the Web. Web-based cartography curricula likewise must be adapted to prepare geography, cartography, and GIS students with the skills needed to make use of open source technology. This paper describes the design and evaluation of a novel curriculum for the laboratory component of a web mapping course offered by a university geography department. We drew from constructivist educational theory to create a scaffolded and spiralled lab curriculum that builds on prior understanding and progressively increases student independence and confidence. We evaluated the success of the new curriculum through an instructor log, student feedback on assignments, and an exit survey. The evaluation revealed significant growth in student abilities and confidence in the use of Open Web Platform-based mapping tools as a result of the curriculum scaffolding. This research provides a methodology for designing and evaluating curriculum around highly technical skills that are increasingly in demand in research, education, and industry careers.     

Application of lipid biomarker analysis to evaluate the function of ‘slab-lined pits’ in Arctic Norway

Gas chromatography–mass spectrometry (GC–MS) and bulk carbon isotope determinations have been performed on samples (‘cemented organic residues’, charcoal, sediment and fire-cracked rock) excavated from 12 slab-lined pits from various locations in Arctic Norway to test the premise that these archaeological features were used for the extraction of oil from the blubber of marine mammals, such as seal, whale and walrus. A wide range of lipid compound classes were detected especially in the cemented organic residues and in the charcoal samples. The presence of long-chain unsaturated and isoprenoid fatty acids together with oxidation and thermal alteration products of unsaturated acids such as dicarboxylic acids, dihydroxyfatty acids and ω-(o-alkylphenyl)alkanoic acids suggests that these features were used for marine oil extraction at elevated temperatures. Notably the location of the hydroxyl groups in the dihydroxyfatty acids provides a record of the positional isomer of the precursor fatty acid and allows confirmation that 11-docosenoic (cetoleic) acid, the most abundant C_22:1 isomer in marine oil, was a major component of the original lipid. Further information was provided by the presence of long-chain fatty acyl moieties in surviving triacylglycerols and the presence of cholesterol. A fungal metabolite, mycose (trehalose), was found in all samples apart from a fire-cracked rock and points to microbiological activity in the pits. Bulk isotope analysis conducted on the ‘cemented organic residues’ is consistent with modern reference samples of blubber and oil from seal and whale. These data provide clear analytical evidence of the function of slab-lined pits in the archaeological record and suggest widespread exploitation of marine mammals for producing oil for heating, lighting and myriad other uses in the past.     

Re-examining the Egyptian colonial encounter in Nubia through a compositional,mineralogical, and textural comparison of ceramics

Textural, mineralogical, and X-Ray fluorescence (XRF) analyses are used as a cost effective method to distinguish for the first time ancient Egyptian and Nubian-style ceramics found in Nubia. Textural and mineralogical data suggest that Nubian-style sherds are mixtures of sand, silt, and clay sediment that is generally finer grained and poorer in quartz than is the sediment mixture used to produce Egyptian-style pottery. Chemical data also establish a significant difference in the amount of chemical variation found within each style population, but nonetheless supports a considerable overlap in the possible provenance of both styles. Observations and data obtained during this study indicate that standardized, Egyptian-style manufacturing was introduced into Nubia under colonialism, without substantially altering the diversity of native methods of production.     

Exceptional preservation of a prehistoric human brain from Heslington,Yorkshire, UK

Archaeological work in advance of construction at a site on the edge of York, UK, yielded human remains of prehistoric to Romano-British date. Amongst these was a mandible and cranium, the intra-cranial space of which contained shrunken but macroscopically recognizable remains of a brain. Although the distinctive surface morphology of the organ is preserved, little recognizable brain histology survives. Though rare, the survival of brain tissue in otherwise skeletalised human remains from wet burial environments is not unique. A survey of the literature shows that similar brain masses have been previously reported in diverse circumstances. We argue for a greater awareness of these brain masses and for more attention to be paid to their detection and identification in order to improve the reporting rate and to allow a more comprehensive study of this rare archaeological survival.     

The Originalist and Democratic Legacy of Antonin Scalia

Carl Eric Scott introduces the symposium. He argues that Scalia's legacy will be a highly significant one and will center on his articulation of the interpretive theory of originalism and his related defense of constitutionally channeled democratic say.