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The photodissociation of bromobenzene in solution was investigated with ultrafast transient absorption spectroscopy following excitation at 266 nm. Ab initio calculations of lower singlet and triplet states were performed in order to guide the interpretations. The main feature of the kinetics measured between 300 and 930 nm in acetonitrile is a 9±1 ps decay, which we mainly assign to predissociati
In order to demonstrate the feasibility of the proton microprobe in the analysis of dermatological material when a spatial resolution of a few micrometres is sufficient and to compare it with the electron microprobe technique, duplicate sections of human skin have been analysed with both methods. A skin sample was obtained from each of three healthy volunteers. After cryosectioning (12 μm) and fre
New radiative lifetimes for 20 levels of Pr II have been measured using the time-resolved laser-induced fluorescence (LIF) technique. The combination of these experimental values with theoretical branching fractions (BF) obtained with the pseudo-relativistic Hartree-Fock (HFR) approach has allowed us to determine oscillator strengths and transition probabilities for about 150 lines appearing in th
Popular Abstract in Swedish Idag använder många offentliga beslutsfattare en stor andel av sin tid åt att söka introducera nya policies, program och tekniker. Medborgerligt missnöje med offentlig service och offentliga sparbeting gör att många beslutsfattare verkar i en turbulent omvärld, där förändringstrycket är stort. Impulser till policyförändring kan komma från många olika håll. I min studie This thesis discusses an alternative to the conventional policy diffusion approach, i.e. the social constructivist translation perspective. Within the translation perspective, policy diffusion is defined as a process where meaning is constructed by temporally and spatially disembedding policy ideas from their previous context and using them as models for policy change in a new context. This brings
Assembly of MHC class I molecules in the ER is regulated by the so-called loading complex (LC). This multiprotein complex is of definite importance for class I maturation, but its exact organization and order of assembly are not known. Evidence implies that the quality of peptides loaded onto class I molecules is controlled at multiple stages during MHC class I assembly. We recently found that tap
The years 1988-1998 were named by World Council of Churches as The Ecumenical Decade - Churches in Solidarity with Women. On a worldwide scale, the Decade challenged member churches to portray Solidarity with Women in their contexts. Churches around the world launched a variety of projects and programs for this purpose. The Decade envisaged a new fellowship of women and men in church and society,
There is now considerable evidence for the involvement of K+ channels in nitric oxide (NO) induced relaxation of smooth muscles including the myometrium. In order to assess whether apamin-sensitive K+ channels play a role in NO - induced relaxation of the human uterus, we have studied the effect of specific blockers of these channels on the relaxation of myometrium from non-pregnant women. In vitr
The non-peptide ET-receptor antagonist Bosentan was used to investigate the role of endogenous endothelin-1 (ET-1) in the development of the Sephadex-induced lung inflammation in the rat. Intratracheal instillation of Sephadex caused a 60-fold rise in endothelin-1-like-immunoreactivity (ET-1-LI) in bronchoalveolar lavage fluid (BALF) concomitant with development of lung oedema, an influx of inflam
1. Several recent in vitro studies have suggested that production of nitric oxide (NO) from the islet NO system may have an important regulatory influence on the secretion of insulin and glucagon. In the present paper we have investigated, mainly with an in vivo approach, the influence and specificity of the NO synthase (NOS) blocker NG-nitro-L-arginine methyl ester (L-NAME) on L-arginine-induced
The title compound, [PdBr(C24H49P2)], has a distorted square-planar coordination geometry with the P, C, P'-tridentate ligand forming two five-membered chelate rings. The Br atom is displaced from the square plane by 0.560 (6) angstrom.
We consider the problem of finding a long, simple path in an undirected graph. We present a polynomial-time algorithm that finds a path of length Omega((log L/log log L)(2)), where L denotes the length of the longest simple path in the graph. This establishes the performance ratio O(n( log log n/log n)(2)) for the longest path problem, where n denotes the number of vertices in the graph.
Dyschondrosteosis (DCO; also called Leri-Weill syndrome) is a skeletal dysplasia characterised by disproportionate short stature because of mesomelic shortening of the limbs. Madelung deformity is a feature of DCO that is distinctive, variable in expressivity and frequently observed. Mutations of the SHOX (short stature homeobox-containing) gene have been previously described as causative in DCO.
Excited states in 102Sn have been identified for the first time, in an in-beam γ-ray spectroscopic experiment. Two γ-ray transitions with energies 1472 and 497 keV following the decay of the seniority 6+ isomer with t1/2 = 1.0(5) μs were unambiguously assigned to 102Sn. Due to the very low cross section of about 2 μb for producing 102Sn in the reaction 50Cr(58Ni,1α2n), a highly selective detector
