Межтерминологические заимствования в отраслевой лексике (на материале разговорного варианта немецкого языка футбола)

Met de NLT-module ‘Zuiver drinkwater?!’ staan leerlingen in de schoenen van een drinkwatertechnoloog. Hoe adviseer je bedrijven die drinkwater produceren? Hoe kom je tot een gefundeerd advies? Met lesstof die ontleend is aan originele projectplannen en een eindpresentatie met professionele factsheets, geeft de module een mooi beeld van wis- en scheikunde in de beroepspraktijk

On Linear Maps and Seed Sets of Beidleman Near-Vector Spaces

We studied linear mappings in Beidleman near-vector spaces and explored their matrix representations using $R$-bases of $R$-subgroups. Additionally, we developed algorithms for determining the seed number and seed sets of $R$-subgroups within finite-dimensional Beidleman near-vector spaces.Comment: arXiv admin note: text overlap with arXiv:1810.0722

Partner selection in B2B informational service markets

This study investigates the impact of selection criteria associated with interpersonal interaction (good personal relationships; enriching the service offering with interpretation and advice) on supplier consideration. More specifically, it examines how the importance of these criteria is contingent upon service-related dimensions. An experimental study among client firms in the market research industry that combines a conjoint and a between-subjects design leads to several new insights. First, while good personal relationships play an important role in the selection of a service provider, its impact is increased if the service offering is subjective in nature and decreased if it is strategically important. Second, enriching the service offering with interpretation and advice is more important for subjective as well as for strategically important service offerings. Third, as to other selection criteria, the study results show some interesting differences between consideration and choice. Price has a substantive impact only on choice, while a strong brand name is helpful for the service provider only in the consideration stage

Analysis of mixed linkage β-glucan content and structure in different wheat flour milling fractions

β-glucan is a dietary fibre component with health benefits that relate to its structure and solubility. The polysaccharide structure consists predominantly of β-(1–4) linked cellotriosyl (G3) and cellotetraosyl (G4) units joined together with β-(1,3) linkages. The ratio of G3:G4 blocks affects the solubility with very high or very low ratios causing lower solubility. Wheat, a major staple crop, is a source of β-glucan in the human diet; however, there is a lack of research on β-glucan in wheat, especially white flour which is used in many food products. Here we quantified β-glucan in different wheat milling fractions, showing a low content in the first and second break (white) flour fractions (0.2%) with increasing amounts in bran flour (0.5%), wholemeal (0.8%) and bran (2.8%). A high proportion (30%) of β-glucan in the white flour fractions was soluble, while in bran a far smaller proportion (10%) was soluble. In agreement with differences in solubility, the G3:G4 ratio also differed, with the white flour fractions having lower ratios (∼2.5) and bran-containing fractions having higher ratios (∼3.8). We conclude that while total β-glucan in white flour is low, it is substantially soluble, and that high extraction and wholemeal flours have the potential to be a significant source of β-glucan

Rest Interval Length Does Not Affect Total Exercise Volume During Lower Body Resistance Training

Please refer to the pdf version of the abstract located adjacent to the title

Spin-dependent transport in metal/semiconductor tunnel junctions

This paper describes a model as well as experiments on spin-polarized tunnelling with the aid of optical spin orientation. This involves tunnel junctions between a magnetic material and gallium arsenide (GaAs), where the latter is optically excited with circularly polarized light in order to generate spin-polarized carriers. A transport model is presented that takes account of carrier capture in the semiconductor surface states, and describes the semiconductor surface in terms of a spin-dependent energy distribution function. The so-called surface spin-splitting can be calculated from the balance of the polarized electron and hole flow in the semiconductor subsurface region, the polarized tunnelling current across the tunnel barrier between the magnetic material and the semiconductor surface, and the spin relaxation at the semiconductor surface. Measurements are presented of the circular-polarization-dependent photocurrent (the so-called helicity asymmetry) in thin-film tunnel junctions of Co/Al2O3/GaAs. In the absence of a tunnel barrier, the helicity asymmetry is caused by magneto-optical effects (magnetic circular dichroism). In the case where a tunnel barrier is present, the data cannot be explained by magneto-optical effects alone; the deviations provide evidence that spin-polarized tunnelling due to optical spin orientation occurs. In Co/τ-MnAl/AlAs/GaAs junctions no deviations from the magneto-optical effects are observed, most probably due to the weak spin polarization of τ-MnAl along the tunnelling direction; the latter is corroborated by bandstructure calculations. Finally, the application of photoexcited GaAs for spin-polarized tunnelling in a scanning tunnelling microscope is discussed.

Oligo pools as an affordable source of synthetic DNA for cost-effective library construction in protein- and metabolic pathway engineering

The construction of custom libraries is critical for rational protein engineering and directed evolution. Array-synthesized oligo pools of thousands of user-defined sequences (up to ~350 bases in length) have emerged as a low-cost commercially available source of DNA. These pools cost ≤10% (depending on error rate and length) of other commercial sources of custom DNA, and this significant cost difference can determine whether an enzyme engineering project can be realized on a given research budget. However, while being cheap, oligo pools do suffer from a low concentration of individual oligos and relatively high error rates. Several powerful techniques that specifically make use of oligo pools have been developed and proven valuable or even essential for next-generation protein and pathway engineering strategies, such as sequence-function mapping, enzyme minimization, or de-novo design. Here we consolidate the knowledge on these techniques and their applications to facilitate the use of oligo pools within the protein engineering community