Filtyp
Crosstalk cancellation is a crucial issue for traditional digital subscriber line systems. For LTE-over-copper systems, however, the need for crosstalk cancellation varies depending on the analog fronthauling architecture and its parameters. A crosstalk handler that is decoupled as much as possible from the rest of the system architecture is thus preferred. Therefore, we propose a time-domain prec
Low-energy electron diffraction, scanning tunneling microscopy, and photoelectron spectroscopy results from the submonolayer Sm- and Yb-induced surface structures are presented. Several similar metal-induced surface reconstructions are found to exist for Yb and Sm on Si(111) for low submonolayer coverages: 3×2, 5×1, and 7×1. At higher submonolayer coverage, Yb induces a 2×1 reconstruction while Sm
Thin films of the lead-free ferroelectric Na0.5Bi0.5TiO3 grown on thin-film Pt electrodes supported by SrTiO3 substrates have a complex microstructure consisting of crystalline grains with three distinct major crystallographic orientations. The piezoelectric response measured in spatially separated sub-micron grains using time-resolved synchrotron x-ray microdiffraction is highly inhomogeneous eve
2021 marked the 30-year anniversary of the publication Fatal Years: Child Mortality in the late Nineteenth-Century United States, a pioneering work in historical demography by Samuel H. Preston and Michael R. Haines. This special issue showcases the current state of historical mortality studies through a collection of articles originally presented at two commemorative sessions at the 2021 meeting
Invasive alien species are frequently discussed in academic literature by practitioners, government agencies, and popular media, but what does it mean for a species to be alien and why it this seen as a bad thing? To answer these questions, I have analysed texts about invasive alien species in academic journals and in communication from government agencies. The almost totally unanimous answer to t
Social services are adapting to an increasingly digital environment, with municipalities expectedto engage citizens through digital channels. This study investigates how clients seeking social as-sistance perceive and use digital tools as well as the challenges and opportunities that arise whenimplementing such technologies in line with public service values. The analysis draws on municipaldigitalSocial services are adapting to an increasingly digital environment, with municipalities expected to engage citizens through digital channels. This study investigates how clients seeking social assistance perceive and use digital tools as well as the challenges and opportunities that arise when implementing such technologies in line with public service values. The analysis draws on municipal digit
The potential of mean force between two spherical and like-charged macroions in a salt-free aqueous solution has been determined using an extended primitive model and canonical Monte Carlo simulations. The systems considered covered the range from a purely repulsive to a purely attractive potential of mean force as the electrostatic coupling was increased. The macroions were modeled as spherical d
Flat-histogram techniques provide a powerful approach to the simulation of first-order-like phase transitions and are potentially very useful for protein studies. Here, we test this approach by implicit solvent all-atom Monte Carlo (MC) simulations of peptide aggregation, for a 7-residue fragment (GIIFNEQ) of the Cu/Zn superoxide dismutase 1 protein (SOD1). In simulations with 8 chains, we observe
A 'cap and dip' method of adsorbing ruthenium di-2,2'-bipyridy1-4,4'-dicarboxylic acid diisocyanate (N3 dye) on a rutile TiO2 (110) surface was investigated using pyrocatechol as a capping molecule. This method involves cleaning the rutile surface in ultra-high vacuum (UHV), depositing pyrocatechol onto the surface to 'cap' the adsorption sites, removing from vacuum, 'dipping' in an N3 dye solutio
Poly(ethylene-co-vinyl acetate)/organically modified clay nanocomposites were prepared using different clay loadings and by varying the amount of organic modifier. The morphology of the nanocomposites was investigated using small-angle X-ray scattering (SAXS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). SAXS results displayed intercalation of polymeric chains be
Several hundred specimens of a tiny olenid trilobite, Ctenopyge ceciliae sp. nov., have been found in stinkstone nodules in the upper Cambrian Peltura scarabaeoides Zone in southern Sweden. This exceptionally spinose form is known only from disarticulated specimens, but is quite well preserved, and all growth stages are represented. The early ontogenetic stages are exceptionally small, the protasp
Changes in soil texture, bulk density, pH, concentrations and stocks of OC, N, P and K before and after conversion of a 6-year-old Acacia senegal plantation to other land management systems (LMS) were investigated, after three cropping seasons, in the drylands of western Sudan. LMS included pure and intercropped sorghum (PS), roselle (PR) and grasses (PC) with A. senegal at high and low-tree densi
The generation of harmonics through a nonlinear mechanism driven by bunching at the fundamental has sparked interest as a path toward enhancing and extending the usefulness of an X-ray free-electron laser (FEL) facility. The sensitivity of the nonlinear harmonic generation to undulator imperfections, electron beam energy spread, peak current, and emittance is important in an evaluation of the proc
Polymeric catalysts to be applied in the Diels-Alder cycloaddition of hexachlorocyclopentadiene and maleic acid have been prepared via molecular imprinting with template molecules immobilized on silica particles. These enzyme mimicking polymers exhibit specific catalytic effects compared to non-imprinted control polymers or polymer-free solutions. It could be demonstrated that the activity of the
The generalized Gerasimov-Drell-Hearn sum rule is known to be very sensitive to QCD radiative and power corrections. We improve the previously developed QCD-inspired model for the Q2 dependence of the Gerasimov-Drell-Hearn sum rule. We take into account higher order radiative and higher-twist power corrections extracted from precise Jefferson Lab data on the lowest moment of the spin-dependent pro
Objective: The longitudinal epidemiological development of the new variant of Chlamydia trachomatis was studied after appropriate testing procedures had been introduced when the strain was detected in 2006. Methods: The number of cases of the new variant of C trachomatis was followed from 2007 through 2011 from the laboratory records. Testing for C trachomatis is centralised to one laboratory wit
Studien har som syfte att undersöka huruvida flygolyckor påverkar flygplanstillverkares aktiepriser. Tidsperioden som undersöks är mellan år 2000 och 2018 och begränsas till olyckor där 30 personer eller fler miste livet. Metoden som ligger till grund för arbetet är en händelsestudie som tillsammans med statistiska test undersöker effekten av flygolyckor. Historiska data i form av faktiska aktiekuThe purpose of this study is to investigate whether aircraft accidents affect the stock prices of aircraft manufacturers. The time period examined is between 2000 and 2018 and is limited to accidents where 30 people or more lost their lives. The method that underlies the work is an event study that, together with statistical tests, investigates the effect of airplane crashes. Historical data in th
The usage of open source software is growing and with it, the number of vulnerabilities that attackers can utilize in order to perform malicious activities. In order to mitigate them, it is therefore important to develop effective means of remediating said vulnerabilities. This thesis compares two different solutions for automating vulnerability remediation in regards to time efficiency. Both shar
The principle of equality and non-discrimination in employment existed only in a very basic form in the Polish law until the fall of Communism in 1989, even though Poland had already ratified some major international instruments in this area, such as the ICCPR, ICESCR and the ILO Fundamental Conventions. The first positive development in Polish law concerning the principle of equality and non-disc
