Assessing Measures Designed to Protect the Homeland

Some general parameters are proposed for evaluating homeland security measures that seek to make potential targets notably less vulnerable to terrorist attack, and these are then applied to specific policy considerations. Since the number of targets is essentially unlimited, since the probability that any given target will be attacked is near zero, since the number and competence of terrorists is limited, since target-selection is effectively a near-random process, and since a terrorist is free to redirect attention from a protected target to an unprotected one of more or less equal consequence, protection seems to be sensible only in a limited number of instances.     

Experimental analysis of the practical limits of lithic refitting

We report on the results of an experiment aimed at determining the effects of experience/aptitude, lithic reduction type (biface v. core), and flake size cut-offs on different rates of success in refitting studies. We found that experience matters, but that there can be large differences in aptitude for refitting; that cores are easier to refit than bifaces; and that the effort of refitting increases considerably for flakes smaller than 5–6 g. We propose the use of an asymptotic equation fit to a cumulative curve as a way to determine when a study has reached the point of diminishing returns for a given flake size cut-off, and to help determine differences in aptitude for refitting.     

What else? some more ways of thinking and doing ‘Children's Geographies’

‘Children's Geographies’ could do more. In this paper we present a succession of key ideas currently arising in and of new and emergent theoretical, philosophical and conceptual work in the Social Sciences. We invite reflection upon each of these ideas in turn, with a mind, specifically, to ‘Children's Geographies’. In so doing, we make two broad claims. First, that greater engagement with some or all of these ideas might prove useful, enabling, thought-provoking, profound, constructive, challenging, telling, or interesting to ‘Children's Geographers’. Second, that—particularly given the nature of its extant concerns and efforts— ‘Children's Geographies’ could do much more to speak back to (these) wider contemporary lines of thought.     

Not just growing up,but going on: Materials,Spacings, Bodies,Situations

This paper argues that non-representational theories, relating to materialities, spacings, embodiments and events, are important to children's geographies. In so doing, it suggests in particular that we might engage with the becoming-ness of children's geographies in a number of new ways. This point is made via four (ostensibly banal, everyday) examples: wearing glasses; visiting the local park; being clumsy; and one's first day in school. Through this juxtaposition, the paper insists that children's geographies are and can be complex, mundane, unsettling and thoroughly material-spatial-embodied-evental. In other words, there is more to children's geographies than purely representational or symbolic notions of Growing Up. Rather, it is argued that there is always-already-all-sorts-going-on-…     

Why Citizens Do and Do Not Attend Public Meetings about Local Cancer Cluster Investigations

Why do citizens choose to attend or not to attend community public meetings about possible cancer clusters? To answer this question, we examine self‐report data collected during a series of mail surveys conducted in six communities experiencing current health investigations into suspect levels of cancer or cancer clusters. We analyze the data using quantitative content analysis while also providing qualitative summaries and categorizations of survey participants' reasons for attending or not attending a specific public meeting in their community. In addition, we use survey data related to respondents' past participation and sociodemographic characteristics. The results found that rational reasons (e.g., to get information) dominated citizens' justifications for attending the public meetings, whereas socioeconomic and mobilization factors (e.g., did not hear about meeting, too busy) were most commonly cited as reasons for not attending. Less common but still present were relational considerations, such as believing the people in charge were fair. Taken together, the findings suggest that the majority of citizens who attended the public meetings could be categorized as the curious, the fearful, and the available. In comparison, the majority of citizens who did not attend could be described as the uninformed, the indifferent, the occupied, and the disaffected.     

A NOTE ON ADDED INFORMATION IN THE RAS PROCEDURE: REEXAMINATION OF SOME EVIDENCE

ABSTRACT.  An example in Miernyk (1977) presented a rather counterintuitive result, namely, that introducing accurate exogenous information into an RAS matrix estimating procedure could lead to an estimate that was worse than one generated by RAS using no exogenous information at all. This became an oft-cited black mark against RAS. Miller and Blair (1985) included a different (and small) illustration of the same possibility. It was recently pointed out by one of us that the Miller–Blair numerical results are wrong. For that reason, we decided to reexamine all the empirical evidence we could find on the subject. While figures in both Miernyk and Miller–Blair appear to be wrong, more recent published examples seem to have it right. In short, it is possible to identify examples in which additional (correct) information leads to poorer RAS estimates, at least under several fairly common metrics for comparing "closeness" of matrices. However, the overwhelming majority of the evidence is to the contrary. As a general rule, introduction of accurate exogenous information into RAS improves the resulting estimates, and counterexamples should probably not be taken too seriously.