Immersed in sfumato: Correggio’s sensory palette and the immersive Renaissance

ABSTRACT

This brief essay examines the multisensory aspects of the painterly technique of sfumato, first through an analysis of Corregio’s interpretation of the myth of Jupiter and Io, then in the broader context of Renaissance approaches to the representation of space. While scholarship has emphasized the optical character of sfumato, aerial and linear perspective, the last part of this essay replaces these approaches in the context of the immersive character of Renaissance arts and suggests parallels with the dissolution of boundaries between art and audience characteristic of modern and contemporary art.     

CONSTRAINTS ON THE PARTICIPATION OF WOMEN FROM NON-ENGLISH SPEAKING BACKGROUNDS AND AUSTRALIAN-BORN WOMEN IN TRADE UNIONS

This paper compares traditional explanations given for women's under-representation in union affairs with those given by a group of NESB and Australian-born female members of a large New South Wales union. The women's explanations emerge in sharp contrast to traditionally-held wisdom about women's union participation.     

Correlated Equilibrium in Games with Incomplete Information Revisited

A mistake in “Five legitimate definitions of correlated equilibrium (CE) in games with incomplete information” motivates a re-examination of some extensions of the solution concept that Aumann introduced.     

Working Together for Better Social Work Education

This article looks at the development of user involvement in social work education at national policy level. It is written by a group of service users who are involved in Shaping Our Lives, the national independent user controlled organisation and network. The article looks at the background of user involvement in social work education and the work that Shaping Our Lives has done in the past. The new social work qualification requires user involvement in all its aspects and stages. The results so far have been patchy. Service users have made it increasingly clear that they want to be more directly involved in developing this policy alongside other stakeholders. They are particularly keen that some of the funding available goes to user controlled organisations to help develop service users' capacity to get involved and to ensure diverse involvement. The article looks at problems there have been in taking this goal forward and a positive initiative that has developed to help make it happen, led by service users, working collaboratively with other stakeholders.     

Opportunities Lost––Why Some Parents of Young Children Are Not Well-Connected to the Service Systems Designed to Assist Them

Abstract

Evidence on how to engage isolated parents in formal services tends to rely on professional commentary, practitioner discourse, and parents who use services. It is critical to also hear the perspectives of isolated parents to inform practice and service design, yet there are clearly practical difficulties in researchers talking directly to families who do not use services–– not the least of which is how to find them. This paper reports on in-depth interviews with 20 financially disadvantaged sole parents of young children in the inner north of Canberra who define themselves as not well-connected to services. The study finds that these parents often lack the social networks needed to “introduce” them to services; their contacts with formal services in the past have left them feeling judged and under surveillance, and the services which they regularly “brush up” against miss critical opportunities to link them with avenues for support. A small but significant group who resist all formal services indicate they are most likely to be assisted in everyday environments that are normal and nonstigmatising, rather than through formal agency settings.     

Natural Disasters in the United States as Release Agents of Oil, Chemicals, or Radiological Materials Between 1980-1989: Analysis and Recommendations

Generally, hazards research and literature has treated natural and technological disasters as separate entities. This study attempts to determine how frequently interaction between these two types of disaster took place in the United States from 1980-1989. Data were collected by performing a literature review, contacting organizations and individuals active in hazards research and mitigation, and through a questionnaire sent to the emergency management agencies of all 50 states. The consensus derived from the data is that the number of incidents where natural and technological disasters interact is rising while preparations, which recognize the complications inherent in such combined events, remain cursory. There is a pressing need for states to record, and make available to managers, information regarding the number of combined natural/technological events affecting their areas. Only when such data are available will it be possible to make appropriate decisions regarding the best way to reduce the effects of a natural disaster causing a catastrophic release of hazardous materials.     

Robust Inference in Two‐phase Sampling Designs with Application to Unit Nonresponse

Influential units occur frequently in surveys, especially in business surveys that collect economic variables whose distributions are highly skewed. A unit is said to be influential when its inclusion or exclusion from the sample has an important impact on the sampling error of estimates. We extend the concept of conditional bias attached to a unit and propose a robust version of the double expansion estimator, which depends on a tuning constant. We determine the tuning constant that minimizes the maximum estimated conditional bias. Our results can be naturally extended to the case of unit nonresponse, the set of respondents often being viewed as a second‐phase sample. A robust version of calibration estimators, based on auxiliary information available at both phases, is also constructed.     

Nested Kriging predictions for datasets with a large number of observations

This work falls within the context of predicting the value of a real function at some input locations given a limited number of observations of this function. The Kriging interpolation technique (or Gaussian process regression) is often considered to tackle such a problem, but the method suffers from its computational burden when the number of observation points is large. We introduce in this article nested Kriging predictors which are constructed by aggregating sub-models based on subsets of observation points. This approach is proven to have better theoretical properties than other aggregation methods that can be found in the literature. Contrarily to some other methods it can be shown that the proposed aggregation method is consistent. Finally, the practical interest of the proposed method is illustrated on simulated datasets and on an industrial test case with \(10^4\) observations in a 6-dimensional space.     

Combining ROC curves using MAMSE weighted distributions

The receiver operating characteristic (ROC) curve can be used to evaluate the properties of a diagnostic test from the distribution of a variable on the healthy and diseased populations. The minimum averaged mean squared error (MAMSE) weights were developed to handle data from different sources by adjusting the relative contribution of each data source. The authors use the MAMSE weights to infer the ROC curve of a diagnostic test based on raw data from multiple studies. The proposed estimates are consistent and Monte Carlo simulations show favourable finite sample performance. The method is illustrated in a case study where progesterone level is used to detect ectopic pregnancies and abortions from other natural causes. The Canadian Journal of Statistics 46: 298–315; 2018 © 2018 Statistical Society of Canada