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A basic theoretical model that describes the effects of flow in and out of the imaging plane in nuclear magnetic resonance (NMR) images, obtained with the standard pulse sequences single spin echo, multiple spin echo, and inversion recovery, is presented. Theoretically calculated signal values are compared with experimental results obtained from single-slice images of a flow phantom for variable f
Proton MR relaxation times T1 and T2 were determined in vitro in 136 small specimens of astrocytomas grades I-IV, of oligodendrogliomas, metastases of adenocarcinomas, meningiomas and acoustic neuromas. In addition, 7 samples of peritumoural white matter were analysed. The analysed specimens were studied microscopically in their entirety regarding tumour type and occurrence of necrosis and non-tum
Adolescent mental health is key for later well-being. Yet, causal evidence on environmental drivers of adolescent mental health is scant. We study how an important classroom feature---the gender composition in compulsory-school---affects mental health. We use Swedish administrative data ($N=576,285$) to link variation in gender composition across classrooms within cohorts to mental health. We find
The situation in East Timor is turbulent and future growth prospects are indeterminate. This paper discusses the economic challenges facing East Timor. Most inhabitants depend on subsistence farming and there is a need to both modernize agriculture and to foster a modern sector that can generate employment for the growing population. Public expenditures play an important role in this development a
The book is monograph on the work of Swedish filmmaker and visual artist Lena Mattsson (b. 1966) with an introductory essay by Andersson, and two texts by Wiberg and Nilsson respectively. The book is illustrated with photographs and film stills from the whole of Mattsson's career, but the main focus is on her recent projects.A monograph on the art of visual artist and filmmaker Lena Mattsson, Sweden (b. 1966). The book includes a lengthy essay by Andersson and two brief texts by Wiberg and Nilsson, and is furthermore illustrated with photographs and film stills from the whole of Mattsson's career. Focus is on her recent works, though.
Negative interest rates were once seen as impossible outside the realm of economic theory. However, several central banks have recently adopted negative policy rates. The Federal Reserve is coming under increasing pressure to follow suit in the wake of the coronavirus crisis. This paper investigates the actual effects of negative interest rates using the Swedish experience from 2015 to 2019. The S
There is a never-ending quest for a stable economy with full employment and low inflation. Economists have suggested and policymakers have experimented with different fiscal and monetary policy regimes since at least the beginning of the industrial revolution. In this paper, we study Swedish stabilization policies through six policy regimes between 1873 and 2019. We focus on discretionary stabiliz
Coordination games have multiple equilibria under complete information. However, recent theoretical advances show that if players are uncertain but can acquire information about a payoff-relevant state of the world, the number of equilibria depends on whether they can implement strategies (stochastic choice rules) discontinuous in the state. We experimentally test these results in a two-player inv
This doctoral thesis examines the attribution of criminal responsibility in Swedish law in cases where the defendant committed an act during an atypical mental state, e.g. psychosis. In nearly all criminal justice systems, a severe mental disorder can activate special rules that excuse or exempt the defendant. Accountability, or the capacity to be responsible, is a fundamental requirement for crim
Ska en person som är tillfälligt sinnesförvirrad frias från ansvar för brott? Frågan återkommer i förarbeten, litteratur och praxis under brottsbalkens tillämpningstid, men har sedan ikraftträdandet 1965 i princip stått obesvarad. Högsta domstolen har nu meddelat dom i ett fall där den tilltalade var åtalad för att ha misshandlat sin mor under ett kortvarigt psykostillstånd, i tron att modern var
Water particle orbits are key elements in the Lagrange wave formulation. The stochasticMiche implementation of the Lagrange model is a linear Gaussian 2D or 3D space-time model which exhibit typical non-linear wave characteristics when transformed to Eulerian coordinates. This paper investigates the statistical relation between the degree of front-back asymmetry of individual waves and the orbit oWater particle orbits are key elements in the Lagrange wave formulation. The stochastic Miche implementation of the Lagrange model is a linear Gaussian two-dimensional or three-dimensional space–time model which exhibits typical nonlinear wave characteristics when transformed to Eulerian coordinates. This paper investigates the statistical relation between the degree of front–back asymmetry of ind
In Sweden decentralised drug-budgets at health-care facility levels were introduced in 1997 in an attempt to contain increasing pharmaceutical expenditures. This paper reports the findings of a postal survey which investigates whether decentralised drug-budgets according to a so-called primary-care based model in Swedish health care have led to increased cost awareness and changed attitudes toward
