Disclosing mineralogical phases in medioeval iron nails by non-destructive neutron techniques

There is not only one methodology for the study of mineralogical phases in archaeological samples. In this paper, we discuss a strategy applied to ancient iron nail samples completely based on non-destructive analyses. The archaeological samples come from the archaeological site of Valle delle Forme (province of Brescia–Italy) and date back to the 1300–1400 ad. Neutron-based techniques, like time-of-flight neutron diffraction and neutron tomography, have been used to determine the mineralogical composition and the structure of nails. An independent check for the assessment of the presence of different mineralogical phases was given by Raman spectroscopy. The combination of different non-destructive techniques has provided very useful information on their chemical composition, nature of the patina and corrosion features of the nails (also in the bulk of the samples).     

Breathless: Schools, Air Toxics, and Environmental Justice in California

The exposure of children to environmental disamenities has emerged as a key policy concern in recent years, with some analysts and activists suggesting that minority children are disproportionately impacted. Utilizing a dataset that combines air toxics at the census tract level with school-based demographic and other information, this article indicates disparate exposures for students of color in California schools and suggests that there may be negative impacts on one measure of academic performance, even after controlling for other factors usually associated with test scores. Policy implications include a special focus on school remediation and strengthening overall efforts to reduce emissions "hot spots."     

The Lower Acheulian site of Ambrona,Soria (Spain): ages derived from a combined ESR/U-series model

The Lower Paleolithic sites of Ambrona and Torralba (Soria, Spain) are often associated with each other because of their proximity although they do not represent the same morphostratigraphic unit. Systematic and extensive excavations were conducted at these sites by an American team during the 1960s and 1980s. Recently (1989–2000), a Spanish team has reactivated the research by initiating a new interdisciplinary project. In the central sector and west of the Ambrona site a stratigraphy has been established with six units from AS1 at the base to AS6 at the surface, corresponding to fluvial–lacustrine deposits in which abundant fauna associated with Acheulian artefacts were found. The most abundant species were elephant, horse, deer and aurochs. Other species like carnivores occur in small numbers only. The lithic assemblage is relatively sparse and consists of a few bifaces, choppers and several flake tools distributed throughout levels AS1 to AS5. The fauna and the lithic industry therefore document human presence at Ambrona during the Middle Pleistocene. In order to verify the presumed antiquity of the Ambrona deposits, horse teeth sampled in levels AS1, AS2 and AS6 were analysed using combined ESR/U-series (US) methods. The samples from the lower levels (AS1 and AS2) underwent a very recent uranium uptake as indicated by the U-series dates, ranging between 5 and 18 ka. In contrast, a more conventional postmortem uranium uptake was observed in the upper level samples (AS6) in the enamel and dentine tissues, while a light U-leaching was observed in the cementum. The combined ESR/U-series dates obtained on these samples suggest a minimum age of approximately 350 ka, contemporaneous of OSI 9 or the end of OSI 11, for the Ambrona site.     

Regional planning of R&D and science–technology interactions in Andalucia: a bibliometric analysis of patent documents

Andalucia is a southern European LFR (less‐favoured region) with a high degree of self‐government that has allowed it to design its own R&D policies that complement those implemented throughout Spain and the European Union (EU). Recently the Regional Government passed the Third Andalucian Research Plan 2000–2003, an R&D planning instrument that, as has become customary in previous Plans, attributes considerable budgetary weight to the scientific aspects of the science–technology–industry system (Andalucia allocates more of its own resources to promoting research than any other region in Spain). This paper provides deeper insight into the role played by science in driving the technological development of Andalucia, one of the LFRs of the EU. The aim was to answer five fundamental questions: How is basic science utilized by industry in Andalucia? Which sectors are the most dynamic in the employment of scientific know‐how? Which scientific fields are most in demand by industry? Which types of institution utilize scientific knowledge most profusely? What delay is there in incorporating science into technology? The methodology that has been applied for investigating the links between science and technology is based on scientific citations in patent documents (NPC). The results in this article provide relevant information about the interconnection of scientific and technological systems and thus constitute a good point of reference for the development of future R&D plans.     

Regional Efficiency in the European Union

This paper examines existing disparities in technical efficiency levels across the European regions over the period 1986–2002. The results reveal that technical efficiency is not randomly distributed across space in the European setting. On the contrary, the different tests performed highlight the presence of positive spatial autocorrelation and spatial heterogeneity in the distribution under consideration. In fact, we have detected several regional clusters characterized by similar efficiency levels distinguishing them from the rest of the sample. Nevertheless, the estimates carried out show the existence of a process of regional convergence in terms of technical efficiency during the study period. Our findings also reveal that factors such as the regional stock of capital per worker or the patterns of productive specialization are relevant in explaining the changes in technical efficiency experienced by the European regions between 1986 and 2002.     

Design paths of federal intergovernmental cooperation

Actors rarely approach institutional design choices with a blank slate but are influenced by design choices made at earlier stages. How does institutional design evolve over time and are there specific paths to deepening cooperation? We investigate the institutional design paths of subnational cooperation that are chosen to address increasingly complex and interconnected policy problems. We theorize that besides the substantive problem, earlier choices matter to explain what institutional design mechanism is chosen; that is, the design of existing institutions between two subnational governance units, called substates, influences the design of subsequent institutions. Using a semi-parametric Cox proportional hazards model, we show that the design paths of subnational cooperation in the Swiss water governance sector correlate with earlier design choices. Our results indicate that not all cooperation is self-reinforcing and path-dependent, but they show which specific design choices are more likely to follow each other in repeated formal federal intergovernmental cooperation.     

U.S. Environmental Policy Implementation on Tribal Lands: Trust,Neglect, and Justice

This study investigates the implementation of U.S. environmental protection laws under American Indian tribal governance. The landmark laws of the 1970s that form the core of America's environmental policy regime made no mention of American Indian tribal lands, and the subsequent research literature on environmental policy has given them little attention. The U.S. Environmental Protection Agency has primary implementation responsibility for environmental protection laws on tribal lands, which offers a unique opportunity to study direct federal implementation apart from typical joint state–federal implementation. Further, because Indian reservations are homes to a disproportionately poor, historically subjugated racial group, analysis of environmental programs on tribal lands offers a unique perspective on environmental justice. We analyze enforcement of and compliance with the Clean Water Act (CWA) and Safe Drinking Water Act (SDWA) to compare the implementation of environmental policy on tribal lands with nontribal facilities. Analysis reveals that, compared with nontribal facilities, tribal facilities experience less rigorous CWA and SDWA enforcement and are more likely to violate these laws.     

The Financialisation of Rental Housing 2.0: Releasing Housing into the Privatised Mainstream of Capital Accumulation

This article presents two cases of listed real estate companies that operate in the Ruhr metropolitan region of Germany. The first is Immeo Wohnen, a subsidiary of the French real estate investment trust (REIT) Foncière des Régions that was previously owned by a US hedge fund. The second is Vonovia, Germany's largest real estate company, originally a subsidiary of a British private equity firm. Both examples embody what we call the shift from financialisation 1.0 to financialisation 2.0, i.e. the transition from pure speculation to long‐term investment. We show that long‐term investment strategies are used by REITs and listed funds in order to release housing into the privatised mainstream of capital accumulation. With the advent of the financialisation of rental housing 2.0, the long‐term investment focus of these funds paradoxically enables a short‐term investment focus by buying and selling shares in these funds on the stock exchange.     

Flint and Quartzite: Distinguishing Raw Material Through Bone Cut Marks

Since the 1980s, several experimental analyses have been able to differentiate some lithic tool types and some of their raw materials according to the morphology of cut marks imprinted by such tools when used for butchering activities. Thus, metal tool use has been differentiated in contexts with an abundance of lithic tools, or even the use of hand axes has been documented in carcass processing, in contrast with simple unretouched or retouched flakes. As important as this information is, there are still other important aspects to be analysed. Can cut marks produced with different lithic raw material types be differentiated? Can cut marks made with different types of the same raw material type be characterized and differentiated? The objective of this study is to evaluate if cut marks resulting from the use of different flints and different quartzites are distinguishable from each other. In the present work, an experimental analysis of hundreds of cut marks produced by five types of flint and five varieties of quartzite was carried out. Microphotogrammetry and geometric–morphometric techniques were applied to analyse these cut marks. The results show that flint cut marks and quartzite cut marks can be characterized at the assemblage level. Different types of flint produced cut marks that were not significantly different from each other. Cut marks made with Olduvai Gorge quartzite were significantly different from those produced with a set comprising several other types of quartzites. Crystal size, which is larger in Olduvai Gorge quartzites (0.5 mm) than Spanish quartzites (177–250 μm), is discussed as being the main reason for these statistically significant differences. This documented intra‐sample and inter‐sample variance does not hinder the resolution of the approach to differentiate between these two generic raw material types and opens the door for the application of this method in archaeological contexts.