@book{26723, editor = {{Schwab, Susanne and Nel, Mirna and Hellmich, Frank}}, publisher = {{Taylor & Francis/Routledge}}, title = {{{Social Participation of Students with Special Educational Needs in Mainstream Education}}}, year = {{2019}}, } @phdthesis{26898, abstract = {{Im Rahmen dieser Arbeit wurden die mikrostrukturelle Entwicklung und die daraus resultierenden mechanischen Eigenschaften der im SLM® Verfahren (Selective Laser Melting) verarbeiteten Nickelbasis-Superlegierung Inconel 718 untersucht. Anschließend wurde der Einfluss des HIP-Prozesses (Heißisostatisches Pressen) auf die Porosität, die Mikrostruktur und die mechanischen Eigenschaften analysiert. Da der HIP-Prozess oberflächennahe Poren nicht schließen kann, wurden ausgewählte Proben durch das Arc-PVD-Verfahren (Physical Vapor Deposition) mit einer Ni-20Cr Beschichtung gekapselt. Da die typischen Zellstrukturen zusammen mit den γ´´- Ausscheidungen nach dem Lösungsglühen mit anschließender Ausscheidungshärtung auftreten, konnte die höchste Streckgrenze (Rp0,2) unter quasistatischer Belastung bei Raumtemperatur (RT) sowie bei 650 °C ermittelt werden. Unter zyklischer Belastung zeigen die beschichteten und heißisostatisch gepressten Proben die geringste Ermüdungsfestigkeit bei RT, sowohl vor als auch nach der Ausscheidungshärtung. Im lösungsgeglühten und anschließend ausscheidungsgehärteten Zustand weist das Material die höchste Lebensdauer, insbesondere bei einer niedrigen Dehnungsamplitude (Δε/2 = ±0,35 %), bei 650 °C auf.}}, author = {{Aydinöz, Mehmet Esat}}, isbn = {{ 978-3-8440-6475-9}}, keywords = {{Additive Fertigung, Laserschmelzverfahren, Nickelbasis-Superlegierung, Inconel 718, Mikrostruktur, mechanische Eigenschaften, Heißisostatisches Pressen, Beschichtung}}, pages = {{118}}, title = {{{Mikrostrukturelle und mechanische Eigenschaften der im Laserschmelzverfahren verarbeiteten Inconel 718 Nickelbasis-Superlegierung}}}, volume = {{10}}, year = {{2019}}, } @inproceedings{3287, abstract = {{For optimal placement and orchestration of network services, it is crucial that their structure and semantics are specified clearly and comprehensively and are available to an orchestrator. Existing specification approaches are either ambiguous or miss important aspects regarding the behavior of virtual network functions (VNFs) forming a service. We propose to formally and unambiguously specify the behavior of these functions and services using Queuing Petri Nets (QPNs). QPNs are an established method that allows to express queuing, synchronization, stochastically distributed processing delays, and changing traffic volume and characteristics at each VNF. With QPNs, multiple VNFs can be connected to complete network services in any structure, even specifying bidirectional network services containing loops. We discuss how management and orchestration systems can benefit from our clear and comprehensive specification approach, leading to better placement of VNFs and improved Quality of Service. Another benefit of formally specifying network services with QPNs are diverse analysis options, which allow valuable insights such as the distribution of end-to-end delay. We propose a tool-based workflow that supports the specification of network services and the automatic generation of corresponding simulation code to enable an in-depth analysis of their behavior and performance.}}, author = {{Schneider, Stefan Balthasar and Sharma, Arnab and Karl, Holger and Wehrheim, Heike}}, booktitle = {{2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)}}, location = {{Washington, DC, USA}}, pages = {{116----124}}, publisher = {{IFIP}}, title = {{{Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets}}}, year = {{2019}}, } @article{3585, abstract = {{Existing approaches and tools for the generation of approximate circuits often lack generality and are restricted to certain circuit types, approximation techniques, and quality assurance methods. Moreover, only few tools are publicly available. This hinders the development and evaluation of new techniques for approximating circuits and their comparison to previous approaches. In this paper, we first analyze and classify related approaches and then present CIRCA, our flexible framework for search-based approximate circuit generation. CIRCA is developed with a focus on modularity and extensibility. We present the architecture of CIRCA with its clear separation into stages and functional blocks, report on the current prototype, and show initial experiments.}}, author = {{Witschen, Linus Matthias and Wiersema, Tobias and Ghasemzadeh Mohammadi, Hassan and Awais, Muhammad and Platzner, Marco}}, issn = {{0026-2714}}, journal = {{Microelectronics Reliability}}, keywords = {{Approximate Computing, Framework, Pareto Front, Accuracy}}, pages = {{277--290}}, publisher = {{Elsevier}}, title = {{{CIRCA: Towards a Modular and Extensible Framework for Approximate Circuit Generation}}}, doi = {{10.1016/j.microrel.2019.04.003}}, volume = {{99}}, year = {{2019}}, } @inbook{28790, author = {{Vennemann, Mario and Eickelmann, Birgit and Bos, Wilfried and Wendt, Heike}}, booktitle = {{Grundschulpädagogik zwischen Wissenschaft und Transfer (Jahrbuch Grundschulforschung)}}, editor = {{Donie, Christian and Foerster, Frank and Obermayr, Marlene and Deckwerth, Anne and Kammermeyer, Gisela and Lenske, Gerlinde and Leuchter, Miriam and Wildemann, Anja}}, pages = {{427--432}}, publisher = {{VS Verlag}}, title = {{{Die Relevanz schulischer Kompositionsmerkmale für die Entwicklung mathematischer Kompetenzen am Ende der Grundschulzeit}}}, volume = {{23}}, year = {{2019}}, } @inbook{28791, author = {{Lorenz, Ramona and Endberg, Manuela and Eickelmann, Birgit}}, booktitle = {{Lehrer. Bildung. Gestalten. Beiträge zur empirischen Forschung in der Lehrerbildung}}, editor = {{Ehmke, Timo and Kuhl, Poldi and Pietsch, Marcus}}, pages = {{142--152}}, publisher = {{Beltz-Verlag}}, title = {{{Medienbezogene Kompetenzen von Lehrpersonen – Empirische Befunde und Perspektiven für die Lehrerausbildung}}}, year = {{2019}}, } @inbook{28792, author = {{Drossel, Kerstin and Eickelmann, Birgit}}, booktitle = {{Lehrer. Bildung. Gestalten. Beiträge zur empirischen Forschung in der Lehrerbildung}}, editor = {{Ehmke, Timo and Kuhl, Poldi and Pietsch, Marcus}}, pages = {{97--109}}, publisher = {{Beltz-Verlag}}, title = {{{Die Implementation digitaler Medien gestalten: zur Bedeutung der Einstellungen von Fremdsprachenlehrkräften}}}, year = {{2019}}, } @inbook{28795, author = {{Vennemann, Mario and Schwippert, Knut and Eickelmann, Birgit and Massek, Corinna}}, booktitle = {{ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking}}, editor = {{Eickelmann, Birgit and Bos, Wilfried and Gerick, Julia and Goldhammer, Frank and Schaumburg, Heike and Schwippert, Knut and Senkbeil, Martin and Vahrenhold, Jan}}, pages = {{335--365}}, publisher = {{Waxmann}}, title = {{{Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern mit und ohne Migrationshintergrund im zweiten internationalen Vergleich}}}, year = {{2019}}, } @inbook{28797, author = {{Senkbeil, Martin and Drossel, Kerstin and Eickelmann, Birgit and Vennemann, Mario}}, booktitle = {{ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking}}, editor = {{Eickelmann, Birgit and Bos, Wilfried and Gerick, Julia and Goldhammer, Frank and Schaumburg, Heike and Schwippert, Knut and Senkbeil, Martin and Vahrenhold, Jan}}, pages = {{301--333}}, publisher = {{Waxmann}}, title = {{{Soziale Herkunft und computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich}}}, year = {{2019}}, } @inbook{28799, author = {{Gerick, Julia and Massek, Corinna and Eickelmann, Birgit and Labusch, Amelie}}, booktitle = {{ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking}}, editor = {{Eickelmann, Birgit and Bos, Wilfried and Gerick, Julia and Goldhammer, Frank and Schaumburg, Heike and Schwippert, Knut and Senkbeil, Martin and Vahrenhold, Jan}}, pages = {{271--300}}, publisher = {{Waxmann}}, title = {{{Computer- und informationsbezogene Kompetenzen von Mädchen und Jungen im zweiten internationalen Vergleich}}}, year = {{2019}}, } @inbook{28814, author = {{Eickelmann, Birgit and Bos, Wilfried and Gerick, Julia and Goldhammer, Frank and Schaumburg, Heike and Schwippert, Knut and Senkbeil, Martin and Vahrenhold, Jan}}, booktitle = {{ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking}}, editor = {{Eickelmann, Birgit and Bos, Wilfried and Gerick, Julia and Goldhammer, Frank and Schaumburg, Heike and Schwippert, Knut and Senkbeil, Martin and Vahrenhold, Jan}}, pages = {{33--77}}, publisher = {{Waxmann}}, title = {{{Anlage, Forschungsdesign und Durchführung der Studie ICILS 2018}}}, year = {{2019}}, } @book{28819, editor = {{Eickelmann, Birgit and Bos, Wilfried and Gerick, Julia and Goldhammer, Frank and Schaumburg, Heike and Schwippert, Knut and Senkbeil, Martin and Vahrenhold, Jan}}, publisher = {{Waxmann}}, title = {{{ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking}}}, year = {{2019}}, } @misc{28826, author = {{Gerick, Julia and Eickelmann, Birgit and Steglich, Emilie}}, publisher = {{Universität Hamburg/Universität Paderborn}}, title = {{{Kurzzusammenfassung der Ergebnisse der prozessbegleitenden wissenschaftlichen Evaluation der Einführung von LOGINEO NRW an Pilotschulen}}}, year = {{2019}}, } @misc{28828, author = {{Gerick, Julia and Eickelmann, Birgit and Steglich, Emilie}}, publisher = {{Universität Hamburg/Universität Paderborn}}, title = {{{Abschlussbericht zur prozessbegleitenden Evaluation der Einführung von LOGINEO NRW an Pilotschulen}}}, year = {{2019}}, } @inbook{28830, author = {{Eickelmann, Birgit}}, booktitle = {{Steuerung und Qualitätsentwicklung im Fortbildungssystem. Probleme und Befunde – Standardbildung und Lösungsansätze}}, editor = {{Priebe, Botho and Böttcher, Wolfgang and Heinemann, Ulrich and Kubina, Christian}}, pages = {{208--228}}, publisher = {{Klett/Kallmeyer}}, title = {{{Lehrerfortbildung im Kontext der digitalen Transformation: Herausforderungen, Befunde und Perspektiven für eine zukunftsfähige Gestaltung des Bildungssystems}}}, year = {{2019}}, } @article{2916, author = {{Brauer, Sascha}}, issn = {{0304-3975}}, journal = {{Theoretical Computer Science}}, pages = {{88--106}}, publisher = {{Elsevier}}, title = {{{Complexity of single-swap heuristics for metric facility location and related problems}}}, doi = {{10.1016/j.tcs.2018.04.048}}, volume = {{754}}, year = {{2019}}, } @article{27003, author = {{Perrar, Ines and Schmitting, Sarah and Della Corte, Karen W. and Buyken, Anette and Alexy, Ute}}, issn = {{1436-6207}}, journal = {{European Journal of Nutrition}}, pages = {{1043--1054}}, title = {{{Age and time trends in sugar intake among children and adolescents: results from the DONALD study}}}, doi = {{10.1007/s00394-019-01965-y}}, year = {{2019}}, } @article{27004, author = {{Wong, Tommy H. T. and Buyken, Anette and Brand-Miller, Jennie C. and Louie, Jimmy Chun Yu}}, issn = {{1436-6207}}, journal = {{European Journal of Nutrition}}, pages = {{2357--2367}}, title = {{{Is there a soft drink vs. alcohol seesaw? A cross-sectional analysis of dietary data in the Australian Health Survey 2011–12}}}, doi = {{10.1007/s00394-019-02084-4}}, year = {{2019}}, } @article{27005, abstract = {{ABSTRACT Background There is controversy on the relevance of dietary sugar intake for cardiometabolic health. Objective The aim of this network meta-analysis (NMA) was to assess how isocaloric substitutions of dietary sugar with other carbohydrates affect cardiometabolic risk factors, comparing different intervention studies. Methods We included randomized controlled trials (RCTs) investigating the isocaloric effect of substituting dietary sugars (fructose, glucose, sucrose) with other sugars or starch on cardiometabolic risk markers, including LDL cholesterol, triacylglycerol (TG), fasting glucose (FG), glycated hemoglobin (HbA1c), insulin resistance (HOMA-IR), uric acid, C-reactive protein (CRP), alanine transaminase (ALT), aspartate transaminase (AST), and liver fat content. To identify the most beneficial intervention for each outcome, random-effects NMA was conducted by calculating pooled mean differences (MDs) with 95% CIs, and by ranking the surface under the cumulative ranking curves (SUCRAs). The certainty of evidence was evaluated using the Confidence In Network Meta-Analysis tool. Results Thirty-eight RCTs, including 1383 participants, were identified. A reduction in LDL-cholesterol concentrations was shown for the exchange of sucrose with starch (MD: −0.23 mmol/L; 95% CI: −0.38, −0.07 mmol/L) or fructose with starch (MD: −0.22 mmol/L; 95% CI: −0.39, −0.05 mmol/L; SUCRAstarch: 98%). FG concentrations were also lower for the exchange of sucrose with starch (MD: −0.14 mmol/L; 95% CI: −0.29, 0.01 mmol/L; SUCRAstarch: 91%). Replacing fructose with an equivalent energy amount of glucose reduced HOMA-IR (MD: −0.36; 95% CI: −0.71, −0.02; SUCRAglucose: 74%) and uric acid (MD: −23.77 µmol/L; 95% CI: −44.21, −3.32 µmol/L; SUCRAglucose: 93%). The certainty of evidence was rated very low to moderate. No significant effects were observed for TG, HbA1c, CRP, ALT, and AST. Conclusions Our findings indicate that substitution of sucrose and fructose with starch yielded lower LDL cholesterol. Insulin resistance and uric acid concentrations were beneficially affected by replacement of fructose with glucose. Our findings are limited by the very low to moderate certainty of evidence. This review was registered at www.crd.york.ac.uk/prospero as CRD42018080297. }}, author = {{Schwingshackl, Lukas and Neuenschwander, Manuela and Hoffmann, Georg and Buyken, Anette and Schlesinger, Sabrina}}, issn = {{0002-9165}}, journal = {{The American Journal of Clinical Nutrition}}, title = {{{Dietary sugars and cardiometabolic risk factors: a network meta-analysis on isocaloric substitution interventions}}}, doi = {{10.1093/ajcn/nqz273}}, year = {{2019}}, } @article{27006, abstract = {{Trend analyses suggest that free sugar (FS) intake—while still exceeding 10%E—has decreased among German children and adolescents since 2005, yet that intakes may shift from sugars naturally occurring in foods to added sugars as children age. Thus, we analysed time and age trends in FS intake (%E) from food groups among 3–18 year-olds (1985–2016) using 10,761 3-day dietary records from 1312 DONALD participants (660 boys, 652 girls) by use of polynomial mixed-effects regression models. Among girls, FS from sugar & sweets decreased from 1985 to 2016 (linear trend p < 0.0001), but not among boys (p > 0.05). In the total sample, FS intake from juices increased until 2000 and decreased since 2005 (linear, quadratic trend p < 0.0001). FS from sugar sweetened beverages (SSB) decreased non-linearly from 1985 to 2016 (girls: linear, quadratic, cubic trend p < 0.0001; boys: linear, quadratic, cubic trend p < 0.02). Younger children consumed more FS from juices than older ones, who had a higher FS intake from SSB. FS intake from sugar & sweets increased until early adolescence and decreased afterwards. Since sugar & sweets represent the main source of FS intake and the source with the least pronounced decline in intake, public health measures should focus on these products.}}, author = {{Perrar, Ines and Schadow, Alena M. and Schmitting, Sarah and Buyken, Anette and Alexy, Ute}}, issn = {{2072-6643}}, journal = {{Nutrients}}, title = {{{Time and Age Trends in Free Sugar Intake from Food Groups among Children and Adolescents between 1985 and 2016}}}, doi = {{10.3390/nu12010020}}, year = {{2019}}, }