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Future demand for forest-based biomass for energy purposes in Sweden

This paper assesses the potential changes in the demand for forest-based biomass for various energy purposes in Sweden in 2030 and 2050, respectively. The assessment is based on a review of scenarios and predictions of how the Swedish energy system may develop, taking into account techno-economical conditions. It includes potential changes in district heating, electricity production in combined he

Increased absorption in InAsSb nanowire clusters through coupled optical modes

Nanowires can act as efficient light absorbers where waveguide modes are resonant to specific wavelengths. This resonant wavelength can easily be tuned by the nanowire dimensions, but the absorption of infrared radiation requires diameters of hundreds of nm, which is difficult to achieve using epitaxial growth. Here, we demonstrate that infrared absorption in InAsSb nanowires with the diameters of

Combined Salt and Temperature Impact on Montmorillonite Hydration

Bentonite is to be used as a sealing material for long-term storage of radioactive waste. During permafrost periods the buffer may freeze, causing the following: montmorillonite dehydration, ice formation, and pressure build-up that may fracture the surrounding rock. No previous study has been done on freezing of bentonite in saline water. Using small and wide angle X-ray scattering, the present s

From Meehl to fast and frugal heuristics (and back) - New insights into how to bridge the clinical-actuarial divide

It is difficult to overestimate Paul Meehl's influence on judgment and decision-making research. His 'disturbing little book' (Meehl, 1986, p. 370) Clinical versus Statistical Prediction: A Theoretical Analysis and a Review of the Evidence (1954) is known as an attack on human judgment and a call for replacing clinicians with actuarial methods. More than 40 years later, fast and frugal heuristics

On the role of the axial ligand in heme proteins: a theoretical study

We present a systematic investigation of how the axial ligand in heme proteins influences the geometry, electronic structure, and spin states of the active site, and the energies of the reaction cycles. Using the density functional B3LYP method and medium-sized basis sets, we have compared models with His, His+Asp, Cys, Tyr, and Tyr+Arg as found in myoglobin and hemoglobin, peroxidases, cytochrome

On minimal unsatisfiability and time-space trade-offs for k-DNF resolution

A well-known theorem by Tarsi states that a minimally unsatisfiable CNF formula with m clauses can have at most m - 1 variables, and this bound is exact. In the context of proving lower bounds on proof space in k-DNF resolution, [Ben-Sasson and Nordström 2009] extended the concept of minimal unsatisfiability to sets of k-DNF formulas and proved that a minimally unsatisfiable k-DNF set with m formu

Quantification of vitamin B6 vitamers in human cerebrospinal fluid by ultra performance liquid chromatography-tandem mass spectrometry

Since vitamin B6 is essential for normal functioning of the central nervous system, there is growing need for sensitive analysis of B6 vitamers in cerebrospinal fluid (CSF). This manuscript describes the development and validation of a rapid, sensitive and accurate method for quantification of the vitamin B6 vitamers pyridoxal (PL), pyridoxamine (PM), pyridoxine (PN), pyridoxic acid (PA), pyridoxa

Arterial stiffness in normal pregnancy as assessed by digital pulse wave analysis by photoplethysmography – A longitudinal study

Introduction: It might in the future be valuable to screen for increased maternal arterial stiffness, i.e. low compliance, since it is associated with development of hypertensive complications in pregnancy. Digital pulse wave analysis (DPA) is an easy and manageable method for arterial stiffness assessment. We aimed to investigate gestational influence on DPA variables longitudinally, and establis

Climate change and water resources in arid regions : uncertainty of the baseline time period

Recent climate change studies have given a lot of attention to the uncertainty that stems from general circulation models (GCM), greenhouse gas emission scenarios, hydrological models and downscaling approaches. Yet, the uncertainty that stems from the selection of the baseline period has not been studied. Accordingly, the main research question is as follows: What would be the differences and/or

A novel method for daylight harvesting optimization based on lighting simulation and data-driven optimal control

To date, the best daylighting assessment technique is provided by climate-based simulation tools, which require remarkable efforts to create and calibrate realistic models. The data-driven approaches represent an interesting opportunity to support the physics-based modelling. This work proposes a novel method aimed at the optimization of energy use and luminous environment for a set of lighting co

Towards a framework for designing logistical RFID systems

Purpose of this paper The current RFID technology literature considers several issues. However, the implementation models and guidelines available in this literature are quite fragmented and lack certain elements. The purpose of this paper is thus to put all relevant elements together and discuss them within a comprehensive framework for designing logistical RFID systems. Design/methodology/appro

On the Verifiability of the Activated Sludge System Dynamics

Wastewater treatment processes are inherently dynamic because of variations in the influent flow rate, concentration, and composition. The adaptive behaviour of the microorganisms further emphasizes this fact. Mathematical models and computer simulations are essential to describe, predict, and control the complicated interactions of the processes. Any attempt to model all details of the various re

Självmordsförsök bland narkotikamissbrukare

Popular Abstract in Swedish Denna avhandling handlar om en grupp narkotikamissbrukare som gjort självmordsförsök. Såväl självmord som självmordsförsök är betydligt vanligare bland narkotikamissbrukare jämfört med totalbefolkningen. Bland vårdade narkotikamissbrukare är det mellan 19 till 47 procent som gjort självmordsförsök. Det höga självmordsförsökstalet bland narkotikamissbrukare förklaras oftThe aim of this thesis is to describe suicide attempts in a group of drug abusers who previously had received treatment of their addiction. Another aim is to interpret and analyse the life situations that the individual associates with the suicide attempt. The dissertation is based on interviews conducted on two occasions with 92 drug abusers, 62 men and 30 women. The majority of the drug abusers

Syntes och design : Den intellektuelle politikern som konstnär

Popular Abstract in Swedish Hur löser den intellektuelle politikern problem och hur skapas kontakten med den politiska omgivningen? Svaren på frågorna skall kortfattat presenteras och är intressanta för politiker, partier, väljare och forskare. Svaren visar nämligen hur intellektuella politiker under kristider producerar och presenterar innovativa lösningar som kan få stor betydelse för samhällsutA new theory on the intellectual politician, which has the ability to produce a designed type of problem-solving, has been developed from political science theory, cognitive theory as well as art theory. A cognitive concept, modified integrative complexity, consisting of four sub-concepts, frame reflection, differentiation, reframing and integration has been developed. The relation between politic

Consensus Algorithms for Trees and Strings

This thesis studies the computational complexity and polynomial-time approximability of a number of discrete combinatorial optimization problems involving labeled trees and strings. The problems considered have applications to computational molecular biology, pattern matching, and many other areas of computer science. The thesis is divided into three parts. In the first part, we study some proble

The Changing Nature of the Protein Folding Transition State: Implications for the Shape of the Free-energy Profile for Folding

According to landscape theory proteins do not fold by localised pathways, but find their native conformation by a progressive organisation of an ensemble of partly folded structures down a folding funnel. Here, we use kinetics and protein engineering to investigate the shape of the free-energy profile for two-state folding, which is the macroscopic view of the funnel process for small and rapidly

Adenocarcinoma corpus uteri stage I-II: results of a treatment programme based upon cytometry.

The results of a treatment method on adenocarcinoma corpus uteri stage I-II based upon cytometrically measured DNA ploidy are presented. All patients had a simple hysterectomy. Adjuvant treatment (postoperative vaginal brachytherapy) were given only to those patients with non-diploid tumours regardless of stage and grade. A total of 1,634 women with endometroid adenocarcinoma corpus uteri stage I-