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A Positive Feedback Passive Mixer-First Receiver Front-End

This paper presents a technique to reduce the noise figure of a passive mixer-first receiver front-end. By using lower than 50Ω switch resistance in the current-mode passive mixer and introducing a positive feedback from baseband to the RF-input, it can be well matched close to fLO while achieving a noise figure below 3dB, which is otherwise a fundamental limit. A quadrature front-end prototype fo

Vårdmatchning. Utveckling av en tjänst som matchar vårdens insatser till effektiva och samordnade vårdtjänster

As healthcare lacks incentives and structures for matching capacity between various care providers and for coordinating episodes of care, the result is capacity management that is difficult and uncertain. The organising of healthcare is not adapted to be able to assume the overall responsibility for the coordination of processes of care. The lack of coordination of care forms the departure point f

The data chicken and egg problem

Creating context aware consumer applications or other user data-driven applications require user data in order to model the user and her context. For users to give up personal data they want value from the data collecting application. So how can we provide the value to get the data when we need the data to provide the value, without intruding on the user’s privacy or violating her trust in the app

Old age and the making of everyday life

The surrounding world, filled with objects, is the foundation of our actions, thoughts and emotions. Equally, we affect things and objects in our turn, through the interpretation and the significance we give them. In regard to old age, certain objects, as well as places, may become problematic. Some things lose their importance and fall out of use while others appear and become integrated in every