Fill-in of missing data in univariate coastal data

An approach to fill-in of missing data where gaps exist within an otherwise continuous record is addressed. Ad hoc methods of past approaches are discussed and limitations noted. An approach for providing an estimate of data filling consistent with data having a correlation structure is presented. The method provided is an extension of parametric modelling along with additional constraints imposed via a linear filter to account for variance preservation. The method is applied and compared to real data in which a portion of the record has been removed to simulate missing data. Results show the method to provide realistic missing data that preserves the correlation structure and variance of the measured data.     

Some non-parametric tests for duration dependence: an application to UK business cycle data

A distinction between Fisher's implied data-generating process for Monte Carlo cycles and the more general Markov process leads to non-parametric tests for duration dependence. Tests are based on the method of moments, Tauchen's generalized method of moments (GMM) procedure, and a statistic whose null distribution probability limit is zero. Using finite-sample critical values obtained by Monte Carlo methods, our test results are remarkably consistent. The null distribution of the GMM test statistic for samples of the size considered is distinctly non-normal, so that asymptotic critical values give erroneous results. The tests are applied to UK business cycle data for 1854-1992. There is evidence for duration dependence in expansions but not in contractions.     

Ideology and welfare in the UK: the implications for the voluntary sector

The UK has, over recent years, moved from a welfare state to a more market-oriented system of welfare. But the extent of this change has varied considerably according to the ideological position of local government in different parts of the country. This makes it possible within one country to assess the implications for the voluntary sector of different models of welfare. This article develops a framework for looking at different welfare ideologies and the values they espouse, with reference both to the UK and to the models that exist in other countries. It then takes four examples of UK local authorities which demonstrate the different models and examines the implications for the voluntary sector. In doing so, it examines the prospects for the voluntary sector to deliver both service and political pluralism in the future.     

Strategic planning for resources

In the field or purchasing and supply, 1973 was a year to be remembered. A world-wide boom in industrialised countries produced record prices in markets for food, raw materials and manufactured goods. Rates of inflation in the U.S.A., Western Europe and Japan began to approach South American levels. The value of the dollar, the pound and other major currencies fluctuated dramatically, and the stock market experienced falls comparable to those which occurred during the slump in the thirties. Finally, 1973 was the year of the oil embargo, when oil prices were almost doubled and oil supplies to the West were cut by 15–20%, resulting in the rationing of oil and other commodities in Western Europe.By any standards, this was a momentous year. It is conceivable that supply markets will never be quite the same again. The traditional form of multi-national business, integrated from supply to consumer markets, is fast disappearing as the companies formed in developing countries to secure the supply of oil, food and raw materials are being taken over by the host governments. Indeed it may be that after the traumatic experiences of this year, negotiations for food and key raw materials will be increasingly carried out by governments rather than by private companies.To cope with shortages and higher prices in food, fuels and essential raw materials, government bodies and public and private enterprises will have to develop new capabilities. Western governments have responded quickly by setting up Ministers and Ministries for Energy and by establishing huge budgets for research into the exploration and exploitation of alternative fuels. The large oil companies have declared that they are in the “energy business” and have bought interests in nuclear power and coal.But what does the energy and resource crisis mean for the average firm? It seems that in the 1970s we are experiencing a level of competition for supplies similar to the competition for consumer markets which first produced “Marketing” in the late fifties and early sixties.     

Portfolios for learning and assessment: laying the foundations for continuing professional development

Portfolios are widely used in a range of education programmes at different levels in a number of countries. They are also well established at all stages in social work education. However, in the literature there is surprisingly little critical analysis of the application of the portfolio in social work. In this paper the authors' objective is to contribute to professional knowledge about the use of portfolios in social work. The authors are all members of the Higher Education Funding Council Self-Assessment in Professional and Higher Education Project and are concerned to develop self-assessment in social work and enhance the development of life-long learning. They begin by examining the literature about portfolios from the field of education. Findings are then analysed from a small exploratory study of the use of portfolios in practice learning on a Diploma in Social Work course. Five different but related conceptual themes which emerge from the analysis are discussed: compiling the portfolio; issues of evidence; reflection in a context of assessment; the practice teacher and the learning dialogue; and the challenge of assessment. Suggestions are offered for effective portfolio practice.     

The National Health Act

Abstract

While increasing enrolments of international fee-paying students are a feature of the current Australian tertiary system, little research has been undertaken relating to international students studying social work. A national survey of all accredited BSW programs within Australia was undertaken in 1997 with regard to the demographic profile of international students, current provisions for them and perceptions of educators about relevant issues for consideration. The findings of this survey are presented here. Fee-paying international students represented a small proportion of total enrolments within Australian BSW programs in 1997. While educators perceived that these students did have particular educational and social challenges within Australian social work programs, few special considerations were afforded to them, although the literature would encourage us to consider this. Issues relating to the social and cultural construction of Western social work education are discussed, as well as the cultural relevance of Australian social work education for international students intending to practise social work in their countries of origin.     

Developing Congruence between Theory and Practice in Social Work – The Use of the Group Process

Social workers attempting to bring about social change are encouraged to select and develop practice models that reflect their own theoretical and personal stance. The use of the small group process is seen as one avenue worth exploring in any attempt to achieve effective social change.     

Asymptotic bootstrap validity for finite markov chains

Two methods of bootstrap, viz., standard, and conditional, are presented for estimating the transition probabilities of a finite state Markov chain. Asymptotic validity of the bootstrap estimates are established for both methods. An applica- tion to a bootstrapped statistic for testing independence is briefly discussed together with some simulation results.     

Heteronormative Labour: Conflicting Accountability Structures among Men in Nursing

Drawing on interview and diary data from 40 men in nursing in the US, the current study advances our theoretical understanding of how heteronormativity and masculinity intersect to shape men's performance of carework. Men in nursing are constrained by their accountability to stereotypes that they are gay and/or hypersexual, challenging their work in the feminized profession of nursing. As heteronormativity is embedded in the institution of health care, men nurses of all sexualities must perform additional labour on the job to reconcile their conflicting accountability to heteronormative stereotypes and occupational standards of care. We conceptualize this additional labour as heteronormative labour — work performed in order to strategically manage heteronormative expectations and realized through discursive, cognitive and emotional strategies. The experiences of men in caring professions remain rich for advancing theory on the relationship between sexuality and gender generally and in the workplace.