Most processes (whether physical, chemical, or biological) produce or consume heat: measuring thermal power (the heat production rate) is therefore a typical method of studying processes. Here we describe the design of a simple isothermal heat conduction calorimeter built for use in teaching; we also provide an example of its use in simultaneously determining the rate constant and the reaction ent

In the end of the 1990ths came alarming reports that the vaccine against measles, mumps and rubella (MMR) could cause autism. The discovery about the connection was told in mass media all over the world and in Europe the vaccination frequency decreased with several percent. In some areas less than 90% of the children were vaccinated, a limit that calls “herd immunity”. In interviews with parents,

Högsta domstolen meddelade år 2011 en dom om brott enligt knivförbudslagen och en dom om förberedelse till allmänfarlig ödeläggelse. Båda domarna avser brott som inte har inneburit någon konkret skada mot person eller egendom. Vad kriminaliseringen tar sikte på är snarare risken för ett eventuellt brott som ligger i framtiden, vilket skulle innebär konkret skada. Högsta domstolens domar kommentera

"The Unified Growth Theory is receiving increasing attention from growth theorists since the seminal work of Galor and Weil (1999, 2000). These authors emphasize the need for a unified theory of growth that could account for the transition from Malthusian Stagnation to the Modern Growth Regime (1999). This interest is motivated by the lack of explanation and knowledge regarding the historical evol

Neuropathological changes in Parkinson's disease progress slowly and spread according to a characteristic pattern. Recent papers have shed light on this progression of pathology by examining the fate of neurons grafted into the brains of patients with Parkinson's disease. Two of these studies demonstrate that grafted healthy neurons can gradually develop the same pathology as host neurons in the d

In this paper various biogas systems based on waste materials have been analysed from an environmental point of view. The analyses are based on Swedish conditions using a systems analysis approach from an energy and life cycle perspective. The biogas produced is used as a transportation fuel replacing petrol in light-duty vehicles. The overall aims are to quantify the potential environmental effec

OBJECTIVES: To investigate sick leave and disability pension in working-age subjects with knee osteoarthritis (OA) compared with the general population. METHODS: Population-based cohort study: individual-level inpatient and outpatient Skåne Health Care Register data were linked with data from the Swedish Social Insurance Agency. In 2009 all working-age (16-64 years) Skåne County residents who i

Hyperfine structure constants for the ground and first excited states of sodium are calculated using a newly written hyperfine structure program, which is part of the MCHF Atomic Structure Package. The calculated hyperfine structure constants are compared with the most reliable values obtained in other theoretical studies and in experiments. Also, a new accurate experimental determination of the 3