GOODNESS-OF-FIT TESTS FOR FISHER'S DISTRIBUTION ON THE SPHERE

A set of three goodness-of-fit procedures is proposed to investigate the adequacy of fit of Fisher's distribution on the sphere as a model for a given sample of spherical data. The procedures are all based on standard tests using the empirical distribution function.     

Extended Analysis of At Least Partially Ordered Multi‐factor ANOVA

For multifactor experimental designs in which the levels of at least one of the factors are ordered we show how to construct components that provide a deep nonparametric scrutiny of the data. The components assess generalised correlations and the resulting tests include and extend the Page and umbrella tests. Application of the tests described is straightforward. Orthonormal polynomials on the ANOVA responses and the factors are required and the formulae needed are given subsequently. These depend on the moments of the responses and of each factor and are easily calculated. Products of at least two of these orthonormal polynomials are then used as inputs into standard ANOVA routines. For example, using the first order orthonormal polynomial on factor A and the second order orthonormal polynomial on the ANOVA response will assess if, with increasing levels of factor A there is an umbrella response with either an increase and then a decrease or a decrease and then an increase.     

Social problems clusters as contexts for claimsmaking: implications for the study of off-campus housing

ABSTRACT

Many social problems claims occur in a context that involves (1) actors’ recognition of other stakeholders, (2) relationships among those actors, and (3) varying temporal frameworks that influence how each claimsmaker views the current collection of issues. We call actors’ involvement in overlapping issues a social problems cluster, a set of claimsmaking efforts that involve many of the same people and groups as advocates, or opponents. Using a case study of local student housing issues as an example, we suggest the following regarding the social problems cluster. First, we consider how the interactions among social problems cluster members shape what happens with a particular issue. Second, we consider the way participants within one social problems cluster recognize links may reflect participants’ biographies, interests, ideologies, and so forth. Attending to how the social problems cluster’s members interact and link issues helps to locate a particular claim within its broader context.     

Connecting sleep,the neurocognitive memory system,and Bourdieu's habitus concept: Is sleep a generative force of the habitus?

Bourdieu's habitus theory has been criticized for allegedly being static and deterministic. This is partly due to insufficiently elaborated microstructural aspects of the habitus. Previous works have tried to elaborate the habitus' individual side by drawing on neuropsychological and neuroscientific concepts including the neuropsychological memory system. Despite its relevance for several social processes, sleep has not been considered in this context. The present work investigates the interrelatedness of habitus, sleep, and the memory system with particular focus on the determinism and staticity critique. It shows that the neuropsychological memory system overlaps largely with implicit memory and sleep plays an important role in the formation of habitus‐relevant memory. Moreover, sleep enhances processes such as memory consolidation, reflexivity, associative creativity, and dream‐associated simulation of unknown situations which counter the determinism and staticity critique. The present article argues that habitus, memory, and sleep are closely related and memory and sleep represent operational micro‐structures of the habitus. Moreover, sleep‐related processes represent a generative force that renders the habitus more dynamic. Finally, strengths and weaknesses of the habitus‐memory‐sleep nexus are discussed and further lines of research are outlined.     

A parameterized perspective on packing paths of length two

We study (vertex-disjoint) packings of paths of length two (i.e., of P ₂’s) in graphs under a parameterized perspective. Starting from a maximal P ₂-packing ℘ of size j we use extremal combinatorial arguments for determining how many vertices of ℘ appear in some P ₂-packing of size (j+1) (if such a packing exists). We prove that one can ‘reuse’ 2.5j vertices. We also show that this bound is asymptotically sharp. Based on a WIN-WIN approach, we build an algorithm which decides, given a graph, if a P ₂-packing of size at least k exists in time O^*(2.448^3k)\mathcal{O}^{*}(2.448^{3k}) .     

A short proof of a result on a Vizing-like problem for integer total domination

In this note, we provide a short proof of a recent result on a Vizing-like problem for integer total domination in graphs given by Li and Hou (J. Comb. Optim., 2008).     

Economic Interests and the Vindication of Deviance: Tobacco in Seventeenth Century Europe*

Sociologists have tended to neglect vindication, the process by which deviant behavior becomes redefined as respectable or legitimate. The few studies emphasize the importance of moral persuasion in bringing about vindication. Tobacco's early history suggests that economic interests can also play an important role. In the early seventeenth century, Europeans viewed tobacco as a deviant drug; but in spite of continued moral opposition, it was vindicated by the end of the century because powerful persons and agencies discovered that supporting the trans-Atlantic tobacco trade was in their economic interest.     

The effect of categorisation on testing for an exponential scale shift

A consequence of the fact that observations of random variables are discrete, is that the usual continuous models are inappropriate. Observations have an induced multinomial distribution where the cell probabilities depend on the form of the unobservable continuous distribution. We discuss one particular case: testing for the scale parameter of an exponential distribution. Sizes, powers and asymptotic relative efficiencies are used to assess the effect of categorisation. There are many parameters and we have not given a complete assessment. However our discussion gives a guide to the approach that may be adopted in similar cases. In the case we discuss, we give a preferred procedure that appears to be more convenient and less objectionable than its obvious competitors.