Objective The present study examined parent‐teacher agreement and discrepancy when assessing kindergarten children's behavioral and emotional problems, social‐emotional skills, and developmental status. Method Parents and teachers of overall n = 922 kindergarten children (M age = 3.99; 449 girls) rated the children using the Conners Early Childhood, the Strengths and Difficulties Questionnaire, and the Questionnaire for Assessing Preschool Children's Behavior. Results Agreement was...

Gas‐liquid‐liquid slug flow in a capillary reactor is a promising new concept that allows one to incorporate gas‐liquid reaction, liquid‐liquid extraction, and facile catalyst separation in a single unit. In order to assess the performance of a gas‐liquid‐liquid slug flow reactor, it is necessary to predict the slug velocity and pressure drop to ascertain residence times and reaction rates. New empirical models for velocity and pressure drop were developed based on existing models for two‐pha...

Cytochrome P450 monooxygenases (P450s) are ubiquitous hemeproteins that insert oxygen specifically into substrates leading to diverse chemical transformations. Utilizing their capabilities, microbial whole‐cell biocatalysts are applied in pharmaceutical and fine chemical industry to produce biomolecules and drug metabolites. In order to synthesize novel bioactive compounds there is a great demand to identify P450s with new reaction and substrate scope. In this study, genome mining and an acti...

The growing demand for flexible and compact separation technologies has promoted the application of high‐gravity technology, like rotating packed beds (RPBs). Mass transfer characterization and packing design play an important role in the development of this technology. This article provides a systematic approach towards the evaluation of packing and the development of advanced packing design for distillation in RPBs. For the latter, an additive manufacturing approach is used to develop a new...

Poly(2‐oxazoline)s (POxs) with 2,2′‐iminodiacetate (IDA) end groups were investigated as inhibitors for laccase. The polymers with the IDA end groups are reversible, competitive inhibitors for this enzyme. The IC50 values were found to be in a range of 1–3 mm. Compared with IDA alone, the activity was increased by a factor of more than 30; thus indicating that attaching a polymer chain to an inhibitor can already improve the activity of the former. The enzyme activity drops to practically zer...

Für diese Studie wurde eine Verkehrssimulation, basierend auf dem Simulator SimCo, entwickelt. In dieser Simulation wurden verschiedene Szenarien getestet, um die Effekte von Echtzeitsteuerung im Verkehrsnetz zu untersuchen. Die Szenarien basieren auf Experteninterviews mit Vertretern eines Navigationsdienstleisters, der Bundesanstalt für Straßenwesen (BASt) und Betreibern des öffentlichen Verkehrs. Alle Beteiligten befürworteten eine koordinierte Form der Steuerung des Straßenverkehrs. Diese...

Die Onlineplattform Levumi bietet vier adaptive Förderkonzepte unter dem Titel „Levumis Leseabenteuer“ zur Steigerung der Leseflüssigkeit und des basalen Leseverständnisses in der Grundschule an. In dem vorliegenden Dokument befinden sich alle Vorbereitungs- und Unterrichtsmarialien zum Leseabenteuer „Levumi, Malini und das verhexte Dorf“. Die fachliche Einleitung sowie ein Überblick zu den anderen drei Leseabenteuern ist unter http://dx.doi.org/10.17877/DE290R-20992 zu finden und kann dort k...

In Deutschland erwerben aktuell knapp 20% Grundschülerinnen und Grundschüler unzureichende Lesekompetenzen, sodass das Lernen in der Sekundarstufe beeinträchtigt wird. Forschende fordern für Schülerinnen und Schüler mit einem Risiko zur Ausbildung von Leseschwierigkeiten eine präventive Leseförderung, die an individuellen Lernbedürfnissen ansetzt. Ein möglicher Ansatz ist die Lernverlaufsdiagnostik (LVD). Allerdings stehen für den deutschen Grundschulleseunterricht reliable Lernverlaufstests ...

This dissertation examines the Strengths and Difficulties Questionnaire (SDQ) in German classrooms. In doing so, the factor structure of the SDQ was found sufficiently similar to established 5- and 3- factor models. In the three included articles, longitudinal changes in SDQ performance are examined, and the SDQ is connected to student performance (i.e., grades and competency) and the Perception of Inclusion Questionnaire (PIQ). This establishes not only a validation of the structure of the S...

Synchrotron radiation sources have become an essential part of modern science. The ongoing development to reach higher performance levels with improved quality of synchrotron light demands upgrades of current synchrotron radiation facilities or even construction of new accelerators. During this process, new challenges, both technological and in the accelerator physics, need to be addressed to achieve a higher light quality in terms of brightness, coherence, pulse duration, etc. This includes ...

The estimation of covariance operators of spatio-temporal data is in many applications only computationally feasible under simplifying assumptions, such as separability of the covariance into strictly temporal and spatial factors. Powerful tests for this assumption have been proposed in the literature. However, as real world systems, such as climate data are notoriously inseparable, validating this assumption by statistical tests, seems inherently questionable. In this paper we present an alt...

Initializing quantum registers with high fidelity is a fundamental precondition for many applications like quantum information processing and sensing. The electronic and nuclear spins of a Nitrogen-Vacancy (NV) center in diamond form an interesting hybrid quantum register that can be initialized by a combination of laser, microwave, and radio-frequency pulses. However, the laser illumination, which is necessary for achieving electron spin polarization, also has the unwanted side-effect of dep...

Die Onlineplattform Levumi bietet vorrangig Tests zur Lernverlaufsdiagnostik in den Lernbereichen Lesen, Rechtschreiben, Mathematik und dem Bereich Verhalten und Empfinden an (Jungjohann, Diehl, Mühling & Gebhardt, 2018). Im Lernbereich Lesen kann die Entwicklung der Leseflüssigkeit sowie des basalen Leseverständnisses beobachtet werden (Jungjohann, Mau, Diehl & Gebhardt, 2019). Als Ergänzung werden zur Förderung vier adaptive Förderkonzepte unter dem Titel „Levumis Leseabenteuer“ zur Steiger...

It is an open question if the threshold condition θ < θ_* for the Dörfler marking parameter is necessary to obtain optimal algebraic rates of adaptive finite element methods. We present a (non-PDE) example fitting into the common abstract convergence framework (axioms of adaptivity) and which is potentially converging with exponential rates. However, for Dörfler marking θ > θ_* the algebraic converges rate can be made arbitrarily small.

The paper is concerned with an optimal control problem governed by the rate-independent system of quasi-static perfect elasto-plasticity. The objective is optimize the displacement field in the domain occupied by the body by means of prescribed Dirichlet boundary data, which serve as control variables. The arising optimization problem is nonsmooth for several reasons, in particular, since the control-to-state mapping is not single-valued. We therefore apply a Yosida regularization to obtain a ...

The determination of an optimal design for a given regression problem is an intricate optimization problem, especially for models with multivariate predictors. Design admissibility and invariance are main tools to reduce the complexity of the optimization problem and have been successfully applied for models with univariate predictors. In particular several authors have developed sufficient conditions for the existence of saturated designs in univariate models, where the number of suppor...

This paper is concerned with necessary optimality conditions for optimal control problems governed by variational inequalities of the second kind. So-called strong stationarity conditions are derived in an abstract framework. Strong stationarity conditions are regarded as the most rigorous ones, since they imply all other types of stationarity concepts and are equivalent to purely primal optimality conditions. The abstract framework is afterwards applied to four application-driven exa...