The Occurrence and Consequences of Electoral Mandates in Historical Context

This study revisits the debate over electoral mandates by assessing the occurrence and consequences of landslide electoral victories since the 1860s. The study builds on Keeler's (1993) formulation of mandates in terms of the opportunities afforded by an election. Viewing elections as creating policy opportunities allows a more straightforward assessment of the relation between election outcomes and the legislative activity that follows. The idea of policy windows also avoids some of the criticisms directed at electoral mandates. Using public laws enacted from 1860 to 1998,1 find that landslide electoral victories precede less active Congresses almost as often as they precede surges of legislative activity. Using qualitative historical information, I further find that the legislative opportunities afforded by a landslide victory are conditional upon unity of the president's party.     

A conceptual model for freshwater mussel (family: Unionidae) remain preservation in zooarchaeological assemblages

Expectations for survival of vertebrate remains have been well developed and intensely studied in the zooarchaeological taphonomic literature. Taphonomic studies of shellfish remains focus on marine species and on variables relevant to remains from paleontological contexts (e.g., fossil marine beds). In this paper we develop a conceptual framework from which to derive expectations concerning the preservation of freshwater mussel remains focusing on two parameters, shell microstructure and shell shape. Shell size does not influence survivorship. Our model is validated through application to late Holocene zooarchaeological mussel assemblages from north Texas. Taphonomically robust species are important regarding zooarchaeological and biogeographic interpretations based on mussel paleofaunas, and fragile species are important indicators of whether or not an assemblage is well preserved.     

Acceptance of the neuron theory by clinical neurologists of the late-nineteenth century

This article explores reactions of clinical neurologists of the late-nineteenth century to the concept of a unified nerve cell, the "neuron," which developed from the research on fine anatomy of the nervous system and from conclusions of Waldeyer based on that research. Assessment shows that Waldeyer's role in the acceptance of the neuron theory was not straightforward. A study of primarily American medical literature shows rapid acceptance, eager applications, and high expectations. Nonetheless, some clinicians were disappointed in its immediate relevance. An explanation for this disappointment is offered.     

An Optimized Approach for Protein Residue Extraction and Identification from Ceramics After Cooking

Extraction of protein residues from archaeological matrices, such as pottery clay, lithics, and grinding stones, has proven to be methodologically challenging. Protein residue analysis is fraught with technical challenges in analytical chemistry. In cooking pottery, protein residues are thought to bind to clay surfaces in vessel walls through a variety of primarily non-covalent interactions. Removal of protein residues requires the disruption of these interactions, and a diverse set of tools has been proposed and applied. Here, we test extraction procedures through varying combinations of physical parameters and solvents to derive an optimal approach yielding efficiencies of recovery from experimental pottery above 60%. The utility of our extraction approach was further validated through liquid chromatography?Cmass spectrometry analysis of experimental residues. We have identified several hurdles to developing a successful study of protein residues from pottery, each of which is surmountable with additional method development in the realm of archaeological chemistry.     

Community-based Heritage Management: a case study and agenda for research

Heritage sites regarded as important are safely managed by the state, voluntary or private sectors but the majority of sites, despite statutory protection, remain unrecognised and without a role in their host communities. New schemes such as the Local Heritage Initiative in the UK aim to encourage communities to recognise their heritage assets and in managing them effectively to contribute to their preservation. With reference to the case of Nether Poppleton near York (UK), the present study explores the factors and conditions for effective community management displayed in one locality by groups who are successfully conserving and managing a diverse set of local heritage sites. Interviews and joint tasks enabled an analysis of the complex range of factors and conditions that can lead to a successful community-based initiative. Future research will determine the extent to which these factors, if applied to other sites, might produce the same results. The importance of this agenda is underscored by the increasing reliance on community-based heritage management in the UK and elsewhere.     

Framing theory: towards a critical imagination in heritage studies

Heritage theory has developed piecemeal over the last 30?years, with little progress made in fully understanding the way the subject can or should be theorised. This paper identifies some of the main sources of theory in heritage, as well as the approaches and perspectives that have been formulated as a result. These are framed on the basis of their disciplinary origins and can be viewed as theories in, theories of and theories for heritage. As frames through which heritage can currently be examined they are still employed in relative isolation from each other and we suggest, therefore, a way by which they might be considered as complementary, rather than competing approaches in order to provide impetus for the development of a critical imagination in heritage studies.