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The International Midwinter Counts, organised byWetlands International, started in January 1967, butco-ordinated counts were organised along the coastsof Scania, south Sweden, already since January 1964.This paper summarises the results of the first fortyyears. During the first years full coverage was attained,but in later years the counts covered nine larger areas,containing about 75% of all wate
Spin-Echo Modulated Small Angle Neutron Scattering (SEMSANS) in Time-of-Flight (ToF) mode has been shown to be a promising technique for measuring (very) small angle neutron scattering (SANS) signals and performing quantitative Dark-Field Imaging (DFI), i.e., SANS with 2D spatial resolution. However, the wavelength dependence of the modulation period in the ToF spin-echo mode has so far limited th
Rotor-stator mixers (RSMs) are available in different designs, e.g. with different number of stator slots and slot dimensions. However, the relationship between stator design and the RSM hydrodynamics is not well understood. Consequently, manufacturers still base design and stator screen recommendations on trial-and-error. This study reports experimental measurements of how the flowrate through th
Zr/TiO 2 anatase photocatalysts with 0.5, 1, 2, 5 and 7.5 mol.% Zr were prepared using pressurized hot water crystallization and their photocatalytic activity was explored in acid orange 7 photodegradation. Parent TiO
Oligomeric species populated during the aggregation of the Aβ42 peptide have been identified as potent cytotoxins linked to Alzheimer’s disease, but the fundamental molecular pathways that control their dynamics have yet to be elucidated. By developing a general approach that combines theory, experiment and simulation, we reveal, in molecular detail, the mechanisms of Aβ42 oligomer dynamics during
BACKGROUND: The optimal anti-coagulation strategy for patients with non-ST-elevation myocardial infarction treated with percutaneous coronary intervention is unclear in contemporary clinical practice of radial access and potent P2Y12-inhibitors. The aim of this study was to investigate whether bivalirudin was superior to heparin monotherapy in patients with non-ST-elevation myocardial infarction w
This paper describes a structural reliability analysis utilizing monitoring data in the ultimate limit state with consideration of the uncertainties of the monitoring procedure. For this purpose the uncertainties of the monitoring data are modeled utilizing a new framework for the determination of measurement uncertainties. The approach is based on a process equation and statistical models of obse
This work is aimed at presenting a comparison and detailed analysis of the existing experimental data of laminar burning velocities obtained for syngas flames using the heat flux method. The consistency of these data is essential in the development, validation, and optimization of combustion mechanisms. The core of the approach is the evaluation of any variability or inconsistency among the data o
Metazoan species, from sponges to insects and mammals, possess successful defence systems against their pathogens and parasites. The evolutionary origins of these diverse systems are beginning to be more comprehensively investigated and mapped out. We have collected 1811 metazoan immunity genes from literature and gene ontology annotations. Tentative orthologs of these genes were identified using
Evolutionary theory predicts the existence of relatively stable sex differences in partner preferences with, for example, males being more concerned with traits predicting high fertility and females with traits predicting high resource availability. We tested three predictions using personal advertisements from both traditional newspapers and internet dating services. In accordance with prediction
Microstructural evolution during the early stages of ageing (less than one hour) in a Ni-Cr-Fe based superalloy Inconel 718 (IN718) has been investigated using Small-Angle X-ray Scattering (SAXS). The effects of precipitate kinetics on the precipitate size distribution are compared indirectly with SAXS measurements by using Vickers microhardness data. The microhardness increased after 4 min of age
The mechanism and kinetics of the radical C-3(2) + C3H8 reaction have been investigated theoretically by direct ab initio kinetics over a wide temperature range. The potential energy surfaces have been constructed at the CCSD(T)/B3//UMP2/B1 levels of theory. The electron transfer was also analyzed by quasi-restricted orbital (QRO) in detail. It was shown that all these channels proceed exclusively
Biocatalysis has the potential to provide the chemical industry with several advantages for the production of chemicals; but the use of this technology for the production of speciality and bulk chemicals is unfortunately limited due to the high costs related to the production of the biocatalyst. We have immobilized Candida antarctica lipase B (CALB) on different resins in order to obtain a more co
Traditionally, the simulation of transient and voltage stability in power systems has been constrained to domain-specific tools such as Simpow, PSS/E, ETMSP, and EuroStag. While being efficient and thereby able to simulate large systems, their component models are often encapsulated and difficult or impossible to examine and modify. Also, these simulators often require substantial training and are
Yesterday’s sole hardware product is becoming more and more rare. Today, the original products are increasingly surrounded by value adding services, software or control systems, all bundled together to a “total offer”. Christopher (1998) states that it is the totality of the offer which delivers customer value, and that adding value through differentiation and/or service is a powerful means of ach
BACKGROUND: Occlusion of the superior mesenteric artery (SMA) demands prompt recognition and diagnosis. No accurate diagnostic method is available. The aim of this study was to determine whether the fibrinolytic marker D-dimer is a useful early marker of acute bowel ischaemia. METHODS: Fourteen patients suspected of having acute bowel ischaemia were analysed for an increase in plasma D-dimer level
