What to do with vacant and abandoned residential structures? The effects of teardowns and rehabilitations on nearby properties

In the presented paper, we estimate the impacts of three distinct housing policy interventions to deal with distressed and abandoned residential properties: leaving vacant buildings in their current state, remodeling/rebuilding residential structures, and razing vacant structures. We show that vacant structures negatively impact nearby housing up to 4.1%, but when demolition is followed by complete reconstruction, neighboring housing can be appreciated by as much as 14.1%. In addition, negative spillover effects from foreclosures and vacant buildings are primarily observed in low‐income and middle‐income Census tracts, whereas positive spillover effects generated by remodeling are seen in high‐income Census tracts.     

The Role of Pattern‐Welding in Historical Swords—Mechanical Testing of Materials Used in Their Manufacture

Pattern‐welding is a well‐known technique that was widely employed in the manufacture of swords. While the decorative effect of genuine pattern‐welding (employing phosphoric iron) is indisputable, to date its reinforcing effect is rather unclear. In order to understand this issue better, wrought iron, phosphoric iron, steel and various pattern‐welded samples were prepared and mechanically tested, and the results obtained are discussed in detail. Both the mechanical testing and the long‐term metallographic investigation of medieval swords suggest that pattern‐welding does not have any significant positive effect on the mechanical properties of swords and we should consider it a primarily decorative technique.     

Natural hazards and religion in New Orleans: Coping strategies and interpretations

Socially disadvantaged people are more vulnerable and exposed to the effects of extreme natural events and the social disasters which follow. This article presents the coping strategies and cultural creativity of the most vulnerable (non‐conformist African American religious/spiritual) communities in New Orleans today and in the aftermath of Katrina. Rituals and religious practices play an important role in resilience‐building and for relief and recovery from disasters. Case studies are presented to demonstrate how these devotions, and the community‐building and mutual support that take place as a result (as well as individual practices), have assisted practitioners in their struggle for survival during Katrina and the yearly hurricane season. The article also examines how natural hazards are perceived and reflected in religious explanations and expressions, as well as in spiritual arts, and how they lead to change and adaptations. Here, affected people are not regarded as ‘passive victims’ but as creative and active agents.     

Pests in an ancient Egyptian harbor

Our investigations combine detailed identification and interpretation of plant remains and associated fauna and their mode of arrival in one of the rock-cut galleries, Cave 3, at the site of Mersa/Wadi Gawasis on Egypt’s Red Sea coast. The site served as a staging area and harbor from which Middle Kingdom pharaohs launched seafaring expeditions to the land of Punt in the early second millennium BC. Quantities of wood, including ship timbers, fastenings, debris related to ship dismantling and reworking, and charcoal were excavated and analyzed. Evidence of marine mollusk infestation (shipworm) was abundant in Cave 3, as were the remains of insect pests of stored foods. We also report on a unique find of a plaster “spill” that preserved the floor of Cave 3 as it was when people worked in the gallery ca. 3800 years ago. The plaster spill created a sealed deposit of plant and insect remains with a diagnostic ceramic fragment, allowing us to securely associate insect remains and “hollow” spikelets of emmer wheat (Triticum dicoccum) recovered from the gallery. An impression of the beetle Trachyderma hispida and its associated exoskeleton fragments provide new evidence of this species as a potential pest not yet reported from an archaeological grain storage site in Egypt. The finding of Tenebroides mauritanicus from the same deposit is the earliest known association of this pest with stored grains. These unique finds shed new light on the risks associated with preserving food supplies, combating pest infestation, and dealing with marine organisms on land and at sea in the pharaonic harbor.     

Unsafe drinking water quality in remote Western Australian Aboriginal communities

Chronic kidney disease (CKD) is important in the fields of public health and health geography because of its heavy burden on the health system and high cost of treatment in its advanced stages. The causes of CKD are associated with diabetes and hypertension, but in some parts of the world, the disease occurs in the absence of these factors. Researchers identify this condition as CKD of “unknown” causes (CKDu). CKDu is a multi‐factored health problem and one suspected causal factor is contaminated drinking water. The disease occurs globally but is found in particularly high concentrations among people of certain ethnic and disadvantaged social groups living in very different locations around the world. CKD has become endemic in Western Australia where hospital admissions for Aboriginal people requiring renal dialysis or treatment for diabetes are much higher than for the general population. The possible proportions of CKDu cases among the CKD patients are unknown. This study examines the drinking water quality among communities such as these. Water chemistry analysis in these areas indicates that the nitrate and uranium content greatly exceed officially recommended levels. Most of these communities rely on raw groundwater to supply their domestic needs, and it is very likely that the people are unwittingly ingesting high levels of nitrates and uranium, probably including uranyl nitrates. Very few such remote communities have access to treated drinking water, and cost‐effective water treatment systems are required to provide potable water at the local scale.