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When investigating the association between brain tumors and use of mobile telephones, accurate data on tumor position are essential, due to the highly localized absorption of energy in the human brain from the radio-frequency fields emitted. We used a point process model to investigate this association using information that included tumor localization data from the INTERPHONE Study (Australia, Canada, Denmark, Finland, France, Germany, Israel, Italy, Japan, New Zealand, Norway, Sweden, and the United Kingdom). Our main analysis included 792 regular mobile phone users diagnosed with a glioma between 2000 and 2004. Similar to earlier results, we found a statistically significant association between the intracranial distribution of gliomas and the self-reported location of the phone. When we accounted for the preferred side of the head not being exclusively used for all mobile phone calls, the results were similar. The association was independent of the cumulative call time and cumulative number of calls. However, our model used reported side of mobile phone use, which is potentially influenced by recall bias. The point process method provides an alternative to previously used epidemiologic research designs when one is including localization in the investigation of brain tumors and mobile phone use. [ABSTRACT FROM AUTHOR]

The UK has long experienced a shortage of social workers and has recruited internationally to meet demand. There have been few specific data quantifying the scale of social work mobility to the UK through which such experiences can be set in context. The analysis reported in this article uses data from October 2008, relating to registered social workers working in England. As part of a wider study of migrant social care workers in England, the article reports analysis of data records of over 7,000 non-UK social workers registered to work in England and compares their characteristics to UK-qualified social workers. These analyses are supplemented by analysis of more recent application and registration data from the General Social Care Council pertaining to social workers qualified within and outside the European Union during 2008 and 2009. The findings highlight several important observations in terms of non-UK-qualified social workers' profile as well as some possible trends in migration and variations in rates of qualification verification. Over half of all international social workers in England were trained in four countries: Australia, South Africa, India and the USA. Findings are contextualised with qualitative data obtained from the wider study and policy debates. [ABSTRACT FROM PUBLISHER]

Despite widespread agreement over the connection between federalism and social expenditures during times of welfare state expansion, disagreement exists concerning federalism's role in the retrenchment era. Existing approaches fail to recognize institutional variation among federal states. Analysis of Britain, Germany, and Canada suggests that federalism may promote or hinder health care retrenchment depending upon how it structures the relationship between regional and national governments. Power-sharing federalism hinders health care reform by increasing the institutional obstacles to unpopular cutbacks. Power-separating federalism facilitates reform by creating opportunities for blame avoidance without substantially increasing the number of veto players. These findings challenge traditional linear or dichotomous models of federalism, suggesting the need for an approach that captures how particular types of federalism affect retrenchment politics. [ABSTRACT FROM AUTHOR]