Identification of a Deep-water B-29 WWII Aircraft via ROV Telepresence Survey

American-produced B-29 Superfortress bomber aircraft flew missions against Imperial Japan in the Pacific Theater from air bases in the Mariana Islands from November 1944 until the end of WWII. Mechanical failures forced many B-29s into the ocean surrounding Saipan and Tinian. Terrestrial wreckage of these aircraft has been located in the Pacific region, but no losses in deep water were located until 2016, when a NOAA exploration cruise investigated sonar targets in the Saipan Channel, between Saipan and Tinian. Disarticulated wreckage from a B-29 was located at 370 m over a large area of the seabed. Telepresence-enabled, non-invasive exploration from NOAA Ship Okeanos Explorer allowed scientists on shore to view live streaming video and to work collaboratively to guide the investigation. Experts in aviation archaeology, corrosion studies, WWII history, forensic studies, marine biology, and oceanography participated in the survey using an ROV, highlighting components which could lead to possible identification of the B-29 in situ, and conducting an environmental characterization of the site. This deep-water aircraft site exemplifies multiple-stakeholder driven research in aviation archaeology and highlights several issues in the value of individual site identification.     

The ethnic classification in the late 19th‐century censuses

The topic of this paper is the ethnic classification used in the last three censuses of the 19th century, i.e. the censuses taken in 1875, 1891 and 1900. The aim is to study the content of this classification diachronically, based on new and supplementary evidence from the parish of Astafjord in the southern part of Troms county, northern Norway. This evidence primarily comes from the parish registers from one decade which, unusually, contain rather elaborate characterizations of ethnic affiliation. This feature of the parish registers gives a unique opportunity to check the corresponding characterizations in the censuses.     

Spatial-temporal trends in complementary and alternative medicine (CAM) offices in Ontario,Canada

This paper assesses complementary and alternative medicine (CAM) from a spatial-temporal perspective; it would be of particular interest to those who evaluate health care resource accessibility over space. The analysis compares CAM supply (number of offices, employment, and sales) in Ontario by provincial district, metropolitan influence classification, and health care and social assistance employment quintiles using summary statistics, Kruskal-Wallis and median analyses, and local spatial autocorrelation evaluation. Metropolitan areas throughout Ontario, but especially in the southcentral part of the province, are well endowed with CAM supply and tend to be most important in terms of CAM change. CAM offices are increasing in size in the most populated parts of the province and shrinking in regions that are more peripheral. CAM supply per capita is highest in census subdivisions with moderate levels of health care and social assistance employment, a result that is not offset by significant temporal change. While CAM supply is restructuring in many of Ontario's most populated urban locations, the overall attraction of CAM resources to large and small metropolitan areas is clear. If current spatial-temporal trends continue, CAM spatial disparities will be exacerbated as accessibility to CAM in Ontario's most peripheral locations worsen.