Combined sample scores versus two-sample scores under censoring

For testing the equality of K-populations against ordered alternatives a quadratic form based on two-sample scores of (K-l) pairs of adjacent samples has been suggested as an alternative to the statistic proposed by Beslow(1970). The Pitman asymptotic efficiency of the proposed statistic relative to the Breslow's statistic is found to be one or very close to one in all cases considered. The Bahadur asymptotic efficiency has also been studied and found to be at least one for the situations taken up in this paper.     

Estimation of probability of extinction of a multitype branchihg process

Maximoa likelihood estimation of the probability of ultimata extinction of a possibly age dependentaultitype branching process is studied when independent random samples from off spring distributions are available, In multitype daIton-fatson branching process     

Large sample tests for testing symmetry and independence in some bivariate exponential models

Bivariate Exponential Distribution (BVED) were introduced by Freund (1961), Marshall and Olkin (1967) and Block and Basu (1974) as models for the distributions of (X,Y) the failure times of dependent components (C₁,C₂). We study the structure of these models and observe that Freund model leads to a regular exponential family with a four dimensional orthogonal parameter. Marshall-Olkin model involving three parameters leads to a conditional or piece wise exponential family and Block-Basu model which also depends on three parameters is a sub-model of the Freund model and is a curved exponential family. We obtain a large sample tests for symmetry as well as independence of (X,Y) in each of these models by using the Generalized Likelihood Ratio Tests (GLRT) or tests basesd on MLE of the parameters and root n consistent estimators of their variance-covariance matrices.     

A symbolic representation of Wellington: how participatory painting processes enabled a more inclusive urban narrative

In this article I examine how a participatory painting project in Wellington enhanced cross-cultural understanding between former refugee and host-society participants and enabled a more inclusive urban narrative. In light of the current global humanitarian crisis, a climate of fear has arisen around refugees, which is often exacerbated by the media perpetuating misinformation and negative stereotypes. To counteract misrepresentation, the painting project provided a space for participants to share their lived experiences of home, belonging, and public visibility. A scholar activist orientation was employed, informed by a participatory action research epistemology. These philosophical foundations influenced a qualitative multi-method methodology consisting of painting workshops, semi-structured interviews, participant observation, and public feedback. Through the process of painting a collaborative mural, participants used symbolism to deconstruct language barriers, elicit new ideas, and co-construct a more inclusive narrative whereby differences were negotiated rather than excluded, oppressed, or assimilated. In this manner, social unity was achieved in such a way that it that did not over-ride diversity.