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BACKGROUND: The Collaborative Group on Hormonal Factors in Breast Cancer has brought together the worldwide epidemiological evidence on the possible relation between breast cancer and previous spontaneous and induced abortions. METHODS: Data on individual women from 53 studies undertaken in 16 countries with liberal abortion laws were checked and analysed centrally. Relative risks of breast cancer

An account of the Stockholm Film Workshop (1973 - 2001) and how it became a site of film production by immigrant filmworkers, primarily from Latin America and Greece.

An algorithm for estimation of event related signals dis-turbed by coloured noise, e.g. Evoked Potentials disturbed byEEG, has been investigated. The method is based on GeneralSingular Value Decomposition, GSVD, and estimates a singleEvoked Potential without averaging. There are no assumptionsabout the model for the EEG. The EP is described as a sum ofdamped sinusoids. The algorithm is tested with

This chapter explores the connections between the concepts of sustainable urban transformation and the green urban economy, proposes a framework for understanding how these concepts ‘fit’ together, and makes some practical suggestions for local governments and for national and international policy.

Kapitlet handlar om beklagliga dikotomier i rättssociologisk teori, som till exempel dikotomin rätt/samhälle. Upprätthållandet av sådana dikotomier hämmar rättssociologisk teoriutveckling. Kapitlet tar sin utgångspunkt i en debatt som initierades 1998 av Reza Banakar och som handlade om vad Banakar ansåg vara den rättssociologiska teorins underutvecklade tillstånd, eller rättssociologins identitet

The introduction of paid holidays during the interwar years democratized travel and laid the foundation for modern mass tourism. In European democracies, the right to paid leave found supporters from across the political spectrum who viewed it a means to improve the health of the labor force, increase industrial output, and safeguard family values. Workers also gained new leisure opportunities in

This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete release of the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, which reached its goal of surveying over 10,000 nearby galaxies. The complete release of the MaNGA Stellar Library (MaStar) accompanies

Learning an advanced mathematical concept, limits of functions in this case, is not a linear development equal for all learners. Intentions and abilities influence students’ learning paths and results. Students’ learning developments of limits were studied in terms of concept images (Tall & Vinner, 1981) in the sense that their actions, such as problem solving and reasoning, were considered tr

Vaccine hesitancy is a significant concern worldwide. While some attribute it to a lack of knowledge, experiments have revealed that merely providing additional scientific information has little effect on vaccination hesitancy. This chapter aims to better understand negative and positive vaccination sentiments and actions by examining scientific findings’ non-random and non-linear influence on peo