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Die Gesetzesänderung zur Regelung von Ansprüchen ausländischer Personen im SGB ver- schärft die (Über)lebensbedingungen von zugewanderten erwerbslosen drogengebrauchenden Unionsbürger_innen aus Osteuropa; auf ihnen liegt der Fokus dieses Artikels. Bis Dezember 2016 bestehende Spielräume in der Beantragung von Sozialleistungen, sind reduziert worden auf Überbrückungsleistungen und Rückreisehilfen. Betroffene ziehen es jedoch aus unter- schiedlichsten Gründen vor, in bitterer Armut in Deutschland zu bleiben. Mitarbeitende von niedrigschwelligen Hilfseinrichtungen stehen vor unlösbaren Aufgaben.
Die hohe Anzahl sportassoziierter Gehirnerschütterungen verdeutlicht die gesundheitliche Bedeutung dieser Verletzungen. Im Fußball liegt das Risiko bei 0,2 bis 1,4 Schädel-Hirnverletzungen pro 1.000 Spiel- und Trainingsstunden. Vor dem Hintergrund der Verletzungsprävention wird zwischen antizipierten und nicht-antizipierten Kraftstößen auf den Kopf unterschieden. Insbesondere jüngere und weibliche Spieler/innen können von einem spezifischen Training der Hals- und Rumpfmuskulatur zur Verletzungsprävention profitieren.
Spectral properties and thermal quenching of Mn4+ luminescence in multicomponent garnet hosts
(2018)
Synthesis and Luminescence of the New Ligand Exchanged Cluster Compound (n-Bu4N)2[Mo6I8(CH3SO3)6
(2018)
Bridging the scales in high-throughput dielectrophoretic (bio-)particle separation in porous media
(2018)
Entwicklung und Validierung eines Messsystems zur Quantifizierung physischer Aktivität (P231)
(2018)
Übergänge in das deutsche Bildungssystem im Kontext von Neuzuwanderung. Eine thematische Einordnung
(2018)
Übergänge in das deutsche Bildungssystem: Eine interdisziplinäre Perspektive auf Neuzuwanderung
(2018)
Bedload transport and hydro-abrasive erosion at steep bedrock rivers and hydraulic structures
(2018)
Abrasion in a concrete-lined sediment bypass tunnel is estimated using a Japanese state-of-the-art prediction model and validated by measured invert abrasion data at Asahi Reservoir, Japan. The model is described in detail, certain shortcomings are disclosed, and a revised version is proposed. The model consists of a kinetic energy term accounting for the impact by saltating particles, and a friction work term accounting for the grinding stress. It is found that the latter term yields concrete abrasion values being consistently a multiple compared to its kinetic term contradicting other research. Based on that, and a possible particle impact angle inconsistency, it is proposed to omit the friction work term. It is shown that the calculated abrasion is overestimated by 138% on average compared with that measured, if both terms are accounted for. However, promising results are obtained with only 30% overestimation by neglecting the friction work term.
To achieve the sustainable use of dams, the development of methods for sediment management in reservoirs is required. One such method includes the use of Sediment Bypass Tunnels (SBTs) to divert sediment around a dam, thereby preventing sedimentation in the reservoir. However, SBTs are prone to severe invert abrasion caused by the high sediment flux. Therefore, it is necessary to establish a measurement system of the sediment transport rate in these tunnels. One system to measure sediment transport in rivers is the Swiss plate geophone, which can register plate vibrations caused by particle impact. In Japan, the Japanese pipe microphone is used, and sediment transport is measured based on the sound emitted by the particle impact. In this study an attempt was made to optimize the advantages of both systems by fixing a microphone and an acceleration sensor to a steel plate. The results of calibration experiments with this new system are presented and compared with the existing methods. It was found that the acceleration sensor can detect sediment particles larger than 2 mm in diameter. Moreover, a new parameter, referred to as the detection rate, was introduced to describe the correlation between the actual amount of sediment and the registered output. Finally, two parameters - the saturation rate and hit rate - are introduced and exhibit strong correlation with the detection rate.
Startups have the potential to transform industries as they follow partly divergent business strategies and have the ability to develop new innovative products. The evolving fields of digitalization, sustainability and urbanization highlight the direction of change. Due to enormous time pressure and lack of knowledge, corporations rely heavily on external sources of knowledge to increase innovativeness. Therein, startups take a special role. Joint R&D projects, investments or strategic buyer-supplier agreements with startups grant corporations access to their innovative technologies. This paper gives insights into the organization of search processes to identify innovative startups and highlights approaches to initiate collaborations. Therefore, a multiple-case study among automotive OEMs and suppliers was conducted. The research ends with organizational structures, an identification process, and various instruments developed for the identification of startup innovations. Furthermore, propositions are made for a successful collaboration between startups and established corporations, displaying the role of purchasing in startup management, the need to take fast decisions, secure technical support by experts within their organization and build strong relationships with partners within their supply chain and new partners, as for example venture capitalists.
Forschendes Lernen
(2018)
Handbuch Dampfturbinen
(2018)
The design of anion-sensitive probes with sufficient sensitivity and selectivity is a demanding task in analytical sciences and chemical sensor technology. The reversible binding of anions to lanthanide centers is a possible approach for the development of molecular anion sensors, as reversibility is a prerequisite for continuous sensing and monitoring of enzymatic reactions. Some anion species lead to a strong increase of luminescence intensities and lifetimes by the replacement of luminescence quenching water molecules, though the selectivity of the luminescence response is still a major problem. We synthesized a series of positively charged pyridyl-based multidentate europium complexes (five-, four- and three dentate) including sensitizing chromophores and studied their luminescence intensity and lifetime responses to different polyphosphates, pyrophosphate, phosphate anions, and carboxyanions. The results revealed that the number and symmetry of the binding sites have a significant impact on the response. The five-dentate complex was used for the real-time monitoring of the activity of the ATP hydrolyzing enzyme apyrase.
Due to highly sophisticated, specialised models and data in production, digital twins, as defined as full digital representations, are neither computationally feasible nor useful. The complementary concept of digital shadows will provide cross-domain data access in real time by combining reduced engineering models and production data analytics.
Parents’ attitudes towards inclusive education in day care facilities in the city and rural district of Osnabrueck in Germany were assessed by conducting a written survey (N = 809). In the survey, parents indicated their perceptions of advantages and risks of inclusion for children with and without special needs. The interviewed parents perceived more advantages than risks for both groups of children. The results of the assessment varied depending on the
kind of child care facility. The paper concludes with
recommendations for future research and about how institutions should develop to adequately go about the implementation of inclusive education.