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Danube University Krems

EducationKrems, Niederösterreich, Austria
About: Danube University Krems is a education organization based out in Krems, Niederösterreich, Austria. It is known for research contribution in the topics: Stroke & Population. The organization has 498 authors who have published 1572 publications receiving 68797 citations.


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Journal ArticleDOI
TL;DR: This paper analyzed the education and qualification system in Austria, a longstanding recipient country for migration, and developed a theoretical framework for classifying institutional procedures that can recognise foreign degrees and the results of both non-formal and informal learning.
Abstract: We live in a period of heightened internationalisation of population movement for work, education, and varied forms of forced and voluntary migration. Recognition of qualifications earned by the individuals concerned is a key practical, social, and psychological issue for themselves, as well as impacting on prospective employers, host communities and nations, and a variety of political and cultural debates. This paper analyses the education and qualification system in Austria, a longstanding recipient country for migration, and develops a theoretical framework for classifying institutional procedures that can recognise foreign degrees and the results of both non-formal and informal learning. It argues that both technocratic objectives and moral claims for a quick (or centralised) simplification of these procedures are unrealistic but identifies complementary measures to improve the situation incrementally. Additionally, the paper compares five theoretical approaches – namely human capital theory, ...

6 citations

Journal ArticleDOI
TL;DR: In this paper, a feeding experiment was conducted to explore how fatty acid stable isotopes may overcome the challenge of partitioning autochthonous and all ontogenous energy pathways in aquatic consumers.
Abstract: Abstract Tracing the flow of dietary energy sources, especially in systems with a high degree of omnivory, is an ongoing challenge in ecology. In aquatic systems, one of the persistent challenges is in differentiating between autochthonous and allochthonous energy sources to top consumers. Bulk carbon stable isotope values of aquatic and terrestrial prey often overlap, making it difficult to delineate dietary energy pathways in food webs with high allochthonous prey subsidies, such as in many northern temperate waterbodies. We conducted a feeding experiment to explore how fatty acid stable isotopes may overcome the challenge of partitioning autochthonous and allochthonous energy pathways in aquatic consumers. We fed hatchery‐reared Arctic Char (Salvelinus alpinus) diets of either benthic invertebrates, terrestrial earthworms, or a mixture of both. We then compared how the stable carbon isotopes of fatty acids (δ13CFA) distinguished between diet items and respective treatments in S. alpinus liver and muscle tissues, relative to bulk stable isotopes and fatty acid profiles. Although a high degree of variability of fatty acid stable carbon isotope values was present in all three measures, our results suggest that the ability of this method to overcome the challenges of bulk stable isotopes may be overstated. Finally, our study highlights the importance of further experimental investigation, and consideration of physiological and biochemical processes when employing this emerging method.

6 citations

Journal ArticleDOI
TL;DR: In this paper, the simulation-based sensor design and measurement results of a bidirectional micromachined hot-film anemometer were presented based on a thin-film thermistor made of amorphous germanium embedded in a silicon nitride membrane.
Abstract: We report on simulation-based sensor design and measurement results of a bidirectional micromachined hot-film anemometer. The device is based on a thin-film thermistor made of amorphous germanium embedded in a silicon nitride membrane. The germanium structure is divided by metal-strip electrodes into four thermistor segments which are connected to a Wheatstone bridge. The sensor combines hot-film and calorimetric transduction principles. The flow dependent cooling of the hot film results in a unipolar, strictly monotonic transduction characteristic which is utilized for flow velocity measurements. Moreover, convective heat transfer between the hot-film segments causes thermal asymmetry yielding a bridge detuning voltage with a bipolar characteristic where its sign corresponds to the flow direction. Consequently, the sensor features a strictly monotonic transduction characteristic over a wide flow velocity range combined with simultaneous detection of the flow direction. The device was characterized in constant-current and constant-temperature operating modes for stationary flows as well as step-like changes of the flow velocity. The sensor behaviour as a result of ambient temperature variations was studied in detail.

6 citations

Journal ArticleDOI
TL;DR: It is concluded that online benchmarking and the concept of defining target values as a tool for nationwide acute stroke care appeared to result in an increase in the rate of thrombolysis over the last few years while the variability between the stroke units has not yet been reduced.
Abstract: Despite its widespread availability and known safety and efficacy, a therapy with intravenous thrombolysis is still undergiven. We aimed to identify whether nationwide quality projects—like the stroke registry in Austria—as well as online benchmarking and predefined target values can increase rates of thrombolysis. Therefore, we assessed 6,394 out of 48,462 patients with ischemic stroke from the Austrian stroke registry (study period from March 2003 to December 2011) who had undergone thrombolysis treatment. We defined lower level and target values as quality parameters and evaluated whether or not these parameters could be achieved in the past years. We were able to show that rates of thrombolysis in Austria increased from 4.9 % in 2003 to 18.3 % in 2011. In a multivariate regression model, the main impact seen was the increase over the years [the OR ranges from 0.47 (95 % CI 0.32–0.68) in 2003 to 2.51 (95 % CI 2.20–2.87) in 2011). The predefined lower and target levels of thrombolysis were achieved at the majority of participating centers: in 2011 the lower value of 5 % was achieved at all stroke units, and the target value of 15 % was observed at 21 of 34 stroke units. We conclude that online benchmarking and the concept of defining target values as a tool for nationwide acute stroke care appeared to result in an increase in the rate of thrombolysis over the last few years while the variability between the stroke units has not yet been reduced.

6 citations

Journal ArticleDOI
13 Jun 2018-PLOS ONE
TL;DR: The data indicate that an increase in the citrate concentration from 3 mM to 4 mM further dampens cellular activation, thereby improving biocompatibility, and a concentration of 4 mM citrate might therefore be optimal for use in clinical practice.
Abstract: Background Regional citrate anticoagulation has been associated with enhanced biocompatibility in hemodialysis, but the optimal dose of citrate remains to be established. Here, we compared parameters related to cellular activation during in vitro dialysis, using two doses of citrate. Methods Human whole blood, anticoagulated with either 3 mM or 4 mM of citrate, was recirculated in an in vitro miniaturized dialysis setup. Complement (C3a-desArg), soluble platelet factor 4 (PF4), thromboxane B2 (TXB2), myeloperoxidase (MPO), as well as platelet- and red blood cell-derived extracellular vesicles (EV) were quantified during recirculation. Dialyzer fibers were examined by scanning electron microscopy after recirculation to assess the activation of clotting and the deposition of blood cells. Results Increases in markers of platelet and leukocyte activation, PF4, TXB2, and MPO were comparable between both citrate groups. Complement activation tended to be lower at higher citrate concentration, but the difference between the two citrate groups did not reach significance. A strong increase in EVs, particularly platelet-derived EVs, was observed during in vitro dialysis for both citrate groups, which was significantly less pronounced in the high citrate group at the end of the experiment. Assessment of dialyzer clotting scores after analysis of individual fibers by scanning electron microscopy revealed significantly lower scores in the high citrate group. Conclusions Our data indicate that an increase in the citrate concentration from 3 mM to 4 mM further dampens cellular activation, thereby improving biocompatibility. A concentration of 4 mM citrate might therefore be optimal for use in clinical practice.

6 citations


Authors

Showing all 514 results

NameH-indexPapersCitations
Jaakko Tuomilehto1151285210682
Massimo Zeviani10447839743
J. Tuomilehto6919719801
Manfred Reichert6769519569
Roland W. Scholz6428915387
Michael Brainin5521544194
Gerald Gartlehner5429515320
Thomas Schrefl5040310867
Charity G. Moore5017911040
Josef Finsterer48147913836
Silvia Miksch442647790
J. Tuomilehto4410711425
Heinrich Schima432495973
Reinhard Bauer402285435
Thomas Groth381865191
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20237
202221
2021176
2020165
2019157
2018144