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Aktierekommendationer: Ska man köpa råden?

Bakgrund: Varje dag förmedlar aktieanalytiker världen över analyser och rekommendationer. Eftersom analytikerna spenderar sina dagar med att tolka all tillgänglig information på marknaden är det rimligt att anta att dessa personer är de bästa på att värdera bolag. Därmed kan det tänkas vara en bra strategi för den småsparare som inte själv har kunskap, lust eller tid att basera en strategi på dera

The 21st Century Cockpit: iPad Related Activities and the Affected Cockpit JCS

In aviation, pilots engage in safety critical activities in the cockpit to guarantee a safe flight. Throughout history these activities have been transformed by introducing new artifacts in the cockpit, such as rules and technology, changing thereby the way in which pilots try to achieve safe flight outcomes. The recent introduction of the iPad in the cockpit of airlines, as part of the process of

Revitalizing the Heart of Minsk: A Strategic Framework for the Ecological and Urban Regeneration of the Svisloch River

This thesis investigates the ecological and urban regeneration of the Svisloch River in Minsk, focusing on its central urban segment. Historically a natural watercourse and public axis, the Svisloch has undergone a significant transformation into a technically regulated water body, reflecting the city's changing priorities as a result of Soviet-era infrastructure development and contemporary u

A Proposal for a Kantian Definition of Terrorism : Leading the World Requires Cosmopolitan Ethos

This chapter builds upon three streams of experience by its author: (a) one related to his six-year term as the first UN Special Rapporteur on human rights and counterterrorism (2005-2011), namely the identification of the absence of a proper international definition of terrorism as an important source of human rights abuses, (b) his observation of actual court practice and media coverage where de

A Plaintext-checking Oracle for Decapsulation Leakage in the NIST HQC FPGA Reference Implementation

In this thesis, we evaluate the side-channel security of the NIST HQC post-quantum cryptosystem by analysing the official FPGA decapsulation implementation. A hardware wrapper was created to interact with the HQC decapsulation modules, enabling ciphertext decapsulation with precise power trace capturing using a ChipWhisperer CW305 and Husky setup. A dataset with 20k power traces was generated from

Learning failure prevention skills for safe robot manipulation

Robots are more capable of achieving manipulation tasks for everyday activities than before. However, the safety of manipulation skills that robots employ is still an open problem. Considering all possible failures during skill learning increases the complexity of the process and restrains learning an optimal policy. Nonetheless, safety-focused modularity in the acquisition of skills has not been

Multiplicity-dependent production of Σ(1385)± and Ξ(1530)0 in pp collisions at s = 13 TeV

The production yields of the Σ(1385)± and Ξ(1530)0 resonances are measured in pp collisions at s = 13 TeV with ALICE. The measurements are performed as a function of the charged-particle multiplicity ⟨dNch/dη⟩, which is related to the energy density produced in the collision. The results include transverse momentum (pT) distributions, pT-integrated yields, mean transverse momenta of Σ(1385)± and Ξ

Selection of collimator for rCBF studies and evaluation of triple-headed SPET using noise-resolution plots

We investigated the effect of collimator selection on image quality in regional cerebral blood flow (rCBF) studies of the brain performed with 99Tc(m)-HMPAO. A triple-headed SPET system (GE/CGR Neurocam) was used, together with three sets of parallel-hole collimators - general-purpose (GP), high-resolution (HR) and ultra-high-resolution (UHR). Two image quality parameters were used to describe the

Immobilization of a recombinant Escherichia coli producing a thermostable alpha-L-rhamnosidase: Creation of a bioreactor for hydrolyses of naringin

An U-L-rhamnosidase (E.C. 3.2.1.40) from a newly discovered thermophilic bacterium was expressed in Escherichia coli BL21 DE3 pRIL cells. The cells were immobilized in Ca2+-alginate beads. The temperature of 50 degrees C used in reactions, appeared to be sufficient for making the mesophilic strain porous enough for the substrate to access the cloned thermostable enzyme. Pretreatment of cells with

Fast matrix inversion in compressive spectral imaging based on a tensorial representation

Snapshot spectral imaging enables the acquisition of hyperspectral images (HSI) employing specialized optical systems, such as the coded aperture snapshot spectral imager (CASSI). Specifically, the CASSI system performs spatiospectral codification of light obtaining two-dimensional projected measurements, and these measurements are then processed by computational algorithms to obtain the desired s

Multireference Protonation Energetics of a Dimeric Model of Nitrogenase Iron-Sulfur Clusters

Characterizing the electronic structure of the iron-sulfur clusters in nitrogenase is necessary to understand their role in the nitrogen fixation process. One challenging task is to determine the protonation state of the intermediates in the nitrogen fixing cycle. Here, we use a dimeric iron-sulfur model to study relative energies of protonation at C, S, or Fe. Using a composite method based on co

Improved Electrode Performance Using Fine-Tuned Poly(arylene piperidinium) Ionomers In Anion Exchange Membrane Fuel Cells

Ionomers based on poly(arylene piperidinium)s with varying ion exchange capacities are evaluated in different combinations of anode and cathode electrodes in anion exchange membrane fuel cells. The operational conditions are chosen with an asymmetrical regime including a dry anode with 50% relative humidity at the inlet, and full humidification at the cathode. Polarization and impedance measuremen

Evaluation of a QT Adaptation Time Estimator for ECG Exercise Stress Test in Controlled Simulation

Slowed adaptation of the QT interval to sudden abrupt heart rate (HR) changes has been identified as a marker of ventricular arrhythmic risk. However, abrupt HR changes are difficult to induce in patients. Quantifying the QT adaptation time in gradual HR changes, as observed in ECGs recording during an exercise stress test, has been recently proposed. The time lag between the QT series and an inst

Functional imaging studies of acute administration of classic psychedelics, ketamine, and MDMA : Methodological limitations and convergent results

Functional magnetic resonance imaging (fMRI) is increasingly used to non-invasively study the acute impact of psychedelics on the human brain. While fMRI is a promising tool for measuring brain function in response to psychedelics, it also has known methodological challenges. We conducted a systematic review of fMRI studies examining acute responses to experimentally administered psychedelics in o

Masking Influences : A Systematic Review of Placebo Control and Masking in Psychedelic Studies

Psychedelic-assisted therapy is becoming increasingly acknowledged as an effective therapeutic intervention for various psychiatric illnesses. However, the evaluation of masking success is rarely reported in trials. The objective of the present systematic review was to evaluate placebo-control and masking in studies exploring psychedelic-assisted therapy. Nine (k = 9) studies dating between Januar