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Can a deliberate enhancement of the natural uptake of atmospheric carbon dioxide in forests and agricultural lands contribute to the efforts to mitigation anthropogenic climate change? This is a question that has generated a great deal of debate and controversy since the inception of the multilateral climate negotiations in the early 1990s. This thesis offers an analysis of how this debate has pla
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A scattering approach to entanglement in mesoscopic conductors with independent fermionic quasi-particles is discussed. We focus on conductors in the tunnelling limit, where a redefinition of the quasi-particle vacuum transforms the wavefunction from a many-body product state of non-interacting particles to a state describing entangled two-particle excitations out of the new vacuum (Samuelsson, Su
Mucosal pathogens differ from normal flora constituents in that they provoke a host response that upsets mucosal integrity. We investigated whether the elaboration of discrete adherence factors is sufficient to break the inertia of the mucosal barrier. PapG-mediated adherence was selected as an example, because P fimbrial expression characterizes uropathogenic Escherichia coli and because adherenc
We present a theoretical study of the mesoscopic fluctuations of g tensors in a metal nanoparticle. The calculations were performed using a semirealistic tight-binding model, which contains both spin and orbital contribution to the g tensors. The results depend on the product of the spin-orbit scattering time tau(so) and the mean-level spacing delta, but are otherwise weakly affected by the specif
The Malmo protocol for immune tolerance induction includes high doses of Factor VIII/IX, intravenous IgG and cyclophosphamide. If the inhibitor titer exceeds 10 Bethesda units at start, extracorporeal adsorption of IgG is performed using protein A. The protocol sometimes has to be repeated. A successful response may occur within a few weeks. In hemophilia A the success rate so far is 10/17 patient
Palynological studies on the Vitaback Clay help resolve the position of the Jurassic-Cretaceous boundary in southern Sweden. Well-preserved assemblages of terrestrial pollen and spores, together with abundant algae (Botrycoccus), and for the first time, dinoflagellates have been identified in the Vitaback Clay. A Berriasian age is corroborated for the Vitaback Clay based on the palynological data;
This study examined the influence of affective personality, perfectionism, gender, arousal and dilemma content on moral reasoning. 264 participants were presented with moral dilemmas to which they had to provide a solution that reflected various degrees of justice and care. The results indicated that a) affective personality had an effect on moral reasoning, b) female participants reported higher
The first application of polarization spectroscopy (PS) to the CH radical is demonstrated. In particular, we report on the simultaneous application of laser-induced fluorescence (LIF) and sub-Doppler PS to CH. The conventional experimental setup for PS was supplemented with a second detection system in order to collect the LIF emission. At the same time a Fabry-Perot etalon and molecular iodine we
The fractional volume of capillary blood, i.e. the perfusion fraction f, was measured with the aid of an echo-planar imaging protocol originally designed for the measurement of water diffusion. In healthy volunteers, reasonable f values were obtained. In patients with cerebral ischaemic stroke, a marked decrease in the f value was seen in the infarcted region as compared with corresponding values
Neuroprotective and possible trophic actions of nicotine were studied in two types of experimental models: (1) one in which the meso-striatal dopamine system was subjected to partial hemitransection, and regional glucose utilization (using 2-[3H]deoxyglucose) and blood flow (using [14C]iodoantipyrine) were measured by computer-assisted quantitative autoradiography based on a double-isotope techniq
This study investigates the mechanisms of (de)coding modality, focusing on the interpretation of utterances containing the modals must, may, måste, and kan. The main research question posed in this study is what enables the interlocutors to interpret modal expressions so that communicative goals are achieved. To answer this general question, Coates's (1983) study on modal contexts is initially rep
In vitro reassembled aggregates of cartilage proteoglycan (aggrecan) were studied by glycerol spraying/rotary shadowing electron microscopy and compared to the corresponding native (i.e. never dissociated) structures. In both cases a tightly packed central filament structure was observed consisting of the hyaluronate binding region (HABR) of the proteoglycan, link protein (LP) and hyaluronate (HA)
A new approach to the design of time windows is presented for detection of transient-evoked otoacoustic emissions (TEOAE). The windows are designed with reference to a minimum mean square error criterion involving the correlation properties of the ensemble of responses. Latency information is introduced in the detection process by windowing at different scales that result from wavelet decompositio
Popular Abstract in Swedish Tekniken för vitreoretinal kirurgi har utvecklats betydligt de senaste åren, både vad gäller metodik och instrumentering. Allt fler sjukdomstillstånd i näthinnan kan nu behandlas. För att utveckla dessa metoder vidare, och även öka kunskapen bakom verkningsmekanismen för deras effektivitet, är standardiserade djurmodeller där både funktion och histologi kan utvärderas aThe field of vitreoretinal surgery has expanded greatly over the last decades. A continuous refinement of surgical methods and instruments has increased the number of treatable retinal disorders. Vitrectomy, retinectomy and laser treatment are all part of the modern surgical arsenal. In order to further develop and refine these methods, and also to improve the knowledge of the mechanisms behind th
