Public participation geographic information systems (PPGIS): challenges of implementation in Churchill,Manitoba

Public participation geographic information systems (PPGIS) increasingly are utilized in geographic research, yet researchers rarely are provided with guidance on how to implement PPGIS in an appropriate and effective manner. This article reports on the process of research that explores responses to current and future local tourism development offered by a sample of residents using a modified PPGIS approach called ‘community action geographic information system’ (CAGIS). The conceptual development of CAGIS is reported and the challenges encountered during its implementation in Churchill, Manitoba during 2005–2007 are reviewed. It is suggested that researchers wishing to conduct similar research should undertake thorough preliminary fieldwork to assess the likelihood of finding agreement on a common problem; acquiring adequate resources; establishing collective responsibility for the project's outcome; attaining stakeholder support; developing trust and meaningful relationships; and incorporating indigenous knowledge appropriately. Feedback of results to community members also should be an integral part of the research process. A number of feedback mechanisms are reported, including an interactive weblog, which helped facilitate communication between heterogeneous groups in Churchill. Although ambitions for a truly participatory GIS approach to this project have been set aside, it is held that PPGIS can yield positive outcomes for communities and academia. Sharing this research experience will be useful to others who venture into PPGIS research, especially in northern communities.     

Scenic Perceptions of the Visual Effects of Wind Farms on South Australian Landscapes

A survey of the visual effects of wind farms was undertaken in South Australia, with the aim of quantifying the impact of wind farms on the perceived scenic quality of landscapes. In the study a total of 311 participants assessed the scenic quality of a photographed landscape in 68 coastal and inland locations where wind farms could be located, both without wind farms and with wind farms digitally added to the scene. A key finding of the study was that wind farms generally had a negative effect on landscapes of higher scenic quality but a positive effect on landscapes of lower scenic quality. The negative visual effects of a wind farm did not reduce appreciably with distance. White, blue or grey coloured turbines were preferred over tan or rainbow hues, but this finding was based on a small number of scenes. Limitations of the study included using static views of wind farms and having an insufficient number of scenes to assess the influence of the number of turbines on scenic quality ratings. The study concluded that wind farms should avoid areas of higher perceived scenic quality, particularly on the coast, and be located in areas of lower scenic quality. The study adds to the growing body of international research on community attitudes to wind farms, and contributes useful knowledge for future planning of wind farms in Australia. These research results should assist communities, government agencies and the wind energy industry and improve the planning and design of wind farms by taking community perceptions into account.     

Estimation of Soil Erosion Using Field and Modelling Approaches in an Undisturbed Arnhem Land Catchment,Northern Territory,Australia

An assessment of slope erosion at Tin Camp Creek catchment, Arnhem Land, Northern Territory, Australia, was carried out using the fallout environmental radioisotope caesium‐137 (¹³⁷Cs) as an indicator of soil erosion status, two numerical models (SIBERIA and the Revised Universal Soil Loss Equation (RUSLE)) and erosion pins. This undisturbed drainage basin is situated in the seasonally wet‐dry tropics, with high energy storms and a mean annual rainfall of 1389 mm. Tin Camp Creek catchment is unaffected by European agriculture or pastoral activities, but often experiences fire during the dry season. Two transects were sampled for ¹³⁷Cs in 2002 and 2004, and two models were used to convert ¹³⁷Cs measurements into soil loss estimates. Two methods using the theoretical Profile Distribution Model (PDM) gave net soil redistribution rates between +2.72 and –22.19 t ha^?1 yr^?1 and +2.95 and –24.06 t ha^?1 yr^?1, respectively, while an Australian empirical model (AEM) for uncultivated soils produced estimates between +1.84 and –7.00 t ha^?1 yr^?1 (negative values indicate soil erosion, positive, deposition). The RUSLE gave estimated soil losses for the two transects of approximately 10 t ha^?1 yr^?1, while the SIBERIA model produced values between 0.5 and 2 t ha^?1 yr^?1 for the transects and between 3.5 and 11 t ha^?1 yr^?1 for the total catchment. Average net soil losses of 14 and 15 t ha^?1 yr^?1 for the total catchment and slopes, respectively, were measured by erosion pins. The soil losses in the catchment are similar to those for some other transects in the Northern Territory and the Kimberley region of Western Australia (measured by the ¹³⁷Cs AEM), even though these areas are affected by pastoral activities. This may be at least partly explained by erosion in Tin Camp Creek catchment during high intensity rainstorms at the commencement of the wet season, especially if the slopes have been affected by fire during the previous dry season.     

关于洛阳金谷园汉墓IM337的年代——兼论洛阳地区出土的南方釉陶

洛阳金谷园IM337号汉墓的年代,原报告推定为“东汉中期-晚期”,本文认为该墓实际上是一座西汉晚期墓葬。本文还就该墓中出土的釉陶器进行了分析,认为已知洛阳地区出土的同类釉陶器的年代均集中在西汉晚期至新莽时期,应属于直接从南方输入的产品。     

Nur „Zweite Wahl”︁ oder Die Berufung Adolf Butenandts zum Direktor des KWI für Biochemie

The remarkable career of the nobel laureate Adolf Butenandt in Germany before 1945 and especially after the second world war is well known. But in recent years several publications have questioned his personal behaviour in the Third Reich. But all these articles interpreted Butenandts career and his attitude from our knowledge today about Nazi Germany. From archival sources this article will view on the situation in the 1930s and will show that Butenandt was originally not the first choice of the government for the position of director at the Kaiser‐Wilhelm‐Institute for Biochemistry. Finally it is shown, that Butenandt did knew what was going on behind the scenes, because through his close connections with officers of the Rockefeller Foundation he got several information on the selection.     

The Application of Steroidal Biomarkers to Track the Abandonment of a Roman Wastewater Course at the Agora (Athens,Greece)*

A subterranean, stone‐built, sediment‐filled culvert discovered during excavations at the Agora (Athens, Greece) was dated to the Roman period on the basis of its characteristic construction and associated finds, including coins. The location of the culvert relative to other adjacent watercourses and an ancient river bed suggested that the structure was a sewer. This was confirmed through a multi‐molecular biomarker approach based on analysis of the bile acids associated with sediment filling the sewer, using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The acid fraction contained predominantly deoxycholic and lithocholic acids, while the neutral steroid fraction comprised a complex mixture of Δ⁵ sterol and 5β‐ and 5α‐stanols, dominated by coprostanol, suggesting the presence of faecal matter of predominantly human origin. The concentrations of neutral and acidic faecal biomarkers were observed to vary in tandem, with the highest concentrations being found in the sediment at the base of the fill in the culvert. A reduction in concentration occurred with decreasing depth of the fill, with concentrations in the uppermost samples being little different from control samples of sediment taken beyond the confines of the culvert. The enhanced concentration of bile acids relative to 5β‐stanols compared with fresh human faeces must reflect the enhanced diagenetic stability of the former, thereby making bile acids the possibly preferred biomarker for this type of study. The quantitative data obtained suggest that the culvert fell rapidly out of use, possibly coinciding with the Slavic incursion in AD 582–3.     

The Paleolithic of Central Asia

The Lower Paleolithic of Central Asia is represented by several sealed and more or less firmly dated Lower–Middle Pleistocene cave and open-air sites in the southeastern part and by more numerous surface occurrences throughout the region. The assemblages assigned to the Lower Paleolithic form two rather distinct groups, one remarkable for well-made handaxes and the other characterized by cores and flakes with no handaxes. The distribution map of pebble industries and industries with handaxes shows that while the latter originate from the western regions of Central Asia, the former are concentrated in the eastern part of the area. The Middle Paleolithic assemblages of Central Asia do not form a single technocomplex. Their variability in time is difficult to assess, but variation in space is obvious. Very few Upper Paleolithic sites in this region are known. At the same time, their stone industries are very diverse and most of them differ sharply from each other and from sites in adjacent regions.     

A Variation on a Basic Theme: The Transition to Farming in Southern Central Europe

This paper attempts to summarize the past years of research on the Mesolithic–Neolithic transition in Central Europe and to review recent discussions about the origin and spread of the Early Neolithic. Particular emphasis is given to the debate about migration or diffusion. A combined migrationist/diffusionist model is presented, arguing for an emergence of a farming economy among hunter-gatherer populations in Transdanubia and the subsequent spread of this economy through migration. The new settlers interacted with local Mesolithic groups and adopted and incorporated local material culture and sometimes even aspects of local Mesolithic economy, a process which continued throughout the Early Neolithic. With time, population increase, subsequent competition for resources, and climatic instability led to a destabilization of traditional Early Neolithic society and finally to the outbreak of severe intercommunity violence. The only escape from mutual extinction was a rearrangement of subsistence and social and political structures, possibly with contributions from surviving Terminal Mesolithic groups.     

Spondylolysis in Inuit skeletons from Arctic Canada

Inuit skeletons from archaeological sites in Arctic Canada were examined for the presence of spondylolysis. The largest series represent the Thule culture and historic Inuit from northwest Hudson Bay and Labrador, and Sadlermiut from Southampton Island. The condition was found in 90 individuals, with a total of 120 affected vertebrae producing 198 hemi‐arch defect sites. As in other studies, L5 is affected most frequently, followed by L4 and L3, but examples of L1, L2, L6, and S1 involvement are represented. Incomplete separations account for 20% (40) of the 198 defects, and 5% (10) occur at sites other than interarticularis. Affected males outnumber females at a ratio of 2.4 to 1. The condition was found to increase in frequency from adolescence to young adulthood, and then decrease to middle adulthood and decrease again to old adulthood, but the drop in frequency with age in the adult categories is significant only at the .20 level. Where comparisons could be made, the data obtained from the Canadian Inuit closely resemble those obtained from Alaskan Eskimos and Aleuts, especially their closest linguistic relatives, Inupiat speakers in northern Alaska. Copyright © 2002 John Wiley & Sons, Ltd.     

Bone remodelling following a lower leg fracture in the 11,000‐year‐old hunter‐gatherer from Vado all' Arancio (Italy)

The Upper Palaeolithic skeleton from Vado all'Arancio (Italy), dated to about 11,330 BP, exhibits a severe ankle fracture healed with residual deformation. Following recovery, this young hunter‐gatherer continued to walk for an extended period of time, albeit in a mechanically altered manner. While right‐left differences in external lower limb bone measurements are relatively low, biomechanical analysis of femur and tibia indicates unusually pronounced asymmetry in all cross‐sectional measures of diaphyseal strength. Asymmetry results primarily from normal side endosteal hypertrophy, and not from hypotrophy of the injured limb, suggesting that this individual resumed active life following recovery. This pattern of asymmetry underscores the role of physical activity in maintaining bone mass. Copyright © 2002 John Wiley & Sons, Ltd.