Topological properties of "scale-free" networks are investigated by determining their spectral dimensions d(S), which reflect a diffusion process in the corresponding graphs. Data bases for citation networks and metabolic networks together with simulation results from the growing network model [A.-L. Barabasi and R. Albert, Science 286, 509 (1999)] are probed. For completeness and comparisons latt

Essay regarding current debates in Sweden about the various functions of art criticism in relation to the public sphere, with a special focus on the role of the artcritic Ulf Linde.

This paper presents a digital hardware implementation of a novel wavelet-based event detector suitable for the next generation of cardiac pacemakers. Significant power savings are achieved by introducing a second operation mode that shuts down 2/3 of the hardware for long time periods when the pacemaker patient is not exposed to noise, while not degrading performance. Due to a 0.13-mu m CMOS techn

A short summary of the present status of prompt particle decays in the mass A similar to 60 region is presented. It includes recent results from a GAMMASPHERE experiment, which aimed at the combined high-resolution spectroscopy of light charged particles and gamma-rays to allow for more detailed studies of known decays and the identification of new cases of discrete prompt proton and a-particle em

OBJECTIVE: To compare survival of patients with breast cancer who had never smoked, were smokers, and who were ex-smokers. DESIGN: Observational study. SETTING: City of Malmo, Sweden. PATIENTS: 792 patients with breast cancer diagnosed between 1977-1986 in the Malmo mammographic screening trial. INTERVENTIONS: Follow-up of breast cancer cases through record-linkage with the Swedish Cause of Death

Popular Abstract in Swedish I debatterna om sociala och ekonomiska frågor under 1800-talets första hälft utvecklades grundvalarna för de förhållningssätt till arbetslöshetsfrågan som sedan återkommit i skilda former. Det gällde t.ex. det perspektiv som betonade politikens roll och behovet av statlig intervention för att stimulera produktion och sysselsättning. Det gällde också det renodlade marknaLabour market policy has been at the forefront of economic and political debate in Sweden during the postwar period. Much research effort has been focused on the evolution of labour market policy and its historical roots. The time-perspective has often been narrow, however, and has very seldom extended to include the period prior to the first two decades of the twentieth century. This study emphas

This paper explores the lack of common basic assumptions among different theoretical orientations which constitute the field of sociology of law. It argues that sociology of law lacks theoretical coherence and is, therefore, unable to produce fundamental paradigms. The solution to the paradigmatic shortcomings of sociology of law is, then, sought outside the traditional framework of law and sociol

This paper presents the results of one of the first measurement campaigns for the double-directional characterization of outdoor to indoor wireless propagation channels. Such channels play a vital role for cellular systems with multiple antenna elements at transmitter and receiver, i.e. multiple-input multiple-output (MIMO) systems. Measurements were performed at 5.2 GHz between 53 different recei

Popular Abstract in Swedish Skulle p53-målgenen TRIM22 kunna skydda mot cancer uppkomst? Frisk blodbildning En frisk vuxen människa har mellan fyra och sex liter blod, beroende på individens kroppsstorlek. Blodet produceras i benmärgen som finns i skelettbenen. Varje sekund bildas normalt i benmärgen tre till fyra miljoner blodkroppar från våra stamceller. Blodkropparna är specialiserade celler The tumor suppressor gene p53 is a transcription factor that mediates cell cycle arrest, apoptosis and differentiation. p53 mediated differentiation of leukemic cells depends on the transcriptional activity of p53 but so far no obvious differentiation inducing target gene has been identified. Using a cDNA microarray analysis, I identified TRIM22/Staf50 as a novel direct target gene to p53. The fun

In this paper stability and dynamic properties of voltage and frequency droop control of power electronic converters are investigated for a distributed generation system. Droop control is utilized to share active and reactive power among the source converters. The voltage and frequency controllers are designed so that stand-alone converter operation feeding constant power loads performs satisfacto

In Lake Washington, juvenile sockeye salmon (Oncorhynchus nerka) strongly prefer Daphnia over other prey, switching uniformly to Daphnia when the threshold abundance of 0.4 Daphnia L-1 is achieved. Using long-term Lake Washington data (1978-2001) and fry trap data (1992-2001) from a major tributary, we examined the following: (i) factors that predict Daphnia pulicaria and Daphnia thorata increase

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