Sanna Heikkinen

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IT companies worldwide have started to improve their service management processes based on best practice frameworks, such as IT Infrastructure Library (ITIL). However, many of these companies face difficulties in demonstrating the positive outcomes of IT service management (ITSM) process improvement. This has led us to investigate the research problem: What(More)
Continual service improvement within IT service management is an important research topic. Nowadays, IT services should be actively developed and improved in order to increase quality and cost effectiveness. Continual Service Improvement enables identification of bottlenecks and weak areas in the services. The research problem of this study is: what types(More)
INTRODUCTION Role of hair dyes in the etiology of breast cancer has occasionally raised concern but previous research has concluded with mixed results. Remnants of prohibited aromatic amines have been found in many hair dye products, and elevated levels of DNA-adducts of these amines have been detected from breast epithelial cells of hair dye users.(More)
Main aim was to estimate the association between use of exogenous hormones and breast cancer (BC) risk in a large population-based survey, and to assess the representativeness and overall validity of the data. The survey ‘Women’s Health and Use of Hormones’ was conducted in Finland in 2009, including 7,000 BC cases and 20,000 matched population controls.(More)
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