@article{46010, abstract = {{

Enhanced OER performance of Ni(Fe) hydroxide through UV/ozone treatment.

}}, author = {{Pan, Ying and Wu, Yanfang and Hsain, H. Alex and Su, Ran and Cazorla, Claudio and Chu, Dewei}}, issn = {{2050-7488}}, journal = {{Journal of Materials Chemistry A}}, keywords = {{General Materials Science, Renewable Energy, Sustainability and the Environment, General Chemistry}}, number = {{27}}, pages = {{13437--13442}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Synergetic modulation of the electronic structure and hydrophilicity of nickel–iron hydroxide for efficient oxygen evolution by UV/ozone treatment}}}, doi = {{10.1039/d0ta03470c}}, volume = {{8}}, year = {{2020}}, } @article{46002, abstract = {{

Electrocatalytic activities of electrodes for water splitting are assessed via geometric area, BET surface area and ECSA normalisations.

}}, author = {{Ren, Hangjuan and Pan, Ying and Sorrell, Charles C. and Du, Haiwei}}, issn = {{2050-7488}}, journal = {{Journal of Materials Chemistry A}}, keywords = {{General Materials Science, Renewable Energy, Sustainability and the Environment, General Chemistry}}, number = {{6}}, pages = {{3154--3159}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Assessment of electrocatalytic activity through the lens of three surface area normalization techniques}}}, doi = {{10.1039/c9ta13170a}}, volume = {{8}}, year = {{2020}}, } @article{46008, author = {{Pan, Ying and Ren, Hangjuan and Chen, Ruizhe and Wu, Yanfang and Chu, Dewei}}, issn = {{1385-8947}}, journal = {{Chemical Engineering Journal}}, keywords = {{Industrial and Manufacturing Engineering, General Chemical Engineering, Environmental Chemistry, General Chemistry}}, publisher = {{Elsevier BV}}, title = {{{Enhanced electrocatalytic oxygen evolution by manipulation of electron transfer through cobalt-phosphorous bridging}}}, doi = {{10.1016/j.cej.2020.125660}}, volume = {{398}}, year = {{2020}}, } @article{46149, abstract = {{The paper presents a cross-European survey on teachers and crowdsourcing. The survey examines how familiar language teachers are with the concept of crowdsourcing and addresses their attitude towards including crowdsourcing into language teaching activities. The survey was administrated via an online questionnaire and collected volunteers’ data on: (a) teachers’ experience with organizing crowdsourcing activities for students/pupils, (b) the development of crowdsourced resources and materials as well as (c) teachers’ motivation for participating in or employing crowdsourcing activities. The questionnaire was disseminated in over 30 European countries. The final sample comprises 1129 language teachers aged 20 to 65, mostly working at institutions of tertiary education. The data indicates that many participants are not familiar with the concept of crowdsourcing resulting in a low rate of crowdsourcing activities in the classroom. However, a high percentage of responding teachers is potentially willing to crowdsource teaching materials for the language(s) they teach. They are particularly willing to collaborate with other teachers in the creation of interactive digital learning materials, and to select, edit, and share language examples for exercises or tests. Since the inclusion of crowdsourcing activities in language teaching is still in its initial stage, steps for further research are highlighted.}}, author = {{Arhar Holdt, Špela and Zanasi, Lorenzo and Weber, Tassja and Volodina, Elena and Rodosthenous, Christos and Ordulj, Antonia and Miloshevska, Lina and Lazić Konjik, Ivana and Koeva, Svetla and Kasperavičienė, Ramunė and Hatipoglu, Ciler and Fort, Karën and Bago, Petra and Durán-Muñoz, Isabel and Gajek, Elżbieta and Zviel-Girshin, Rina}}, issn = {{1849-0379}}, journal = {{Rasprave Instituta za hrvatski jezik i jezikoslovlje}}, keywords = {{Linguistics and Language, Language and Linguistics}}, number = {{1}}, pages = {{1--28}}, publisher = {{Institute of Croatian Language and Linguistics}}, title = {{{Language Teachers and Crowdsourcing}}}, doi = {{10.31724/rihjj.46.1.1}}, volume = {{46}}, year = {{2020}}, } @article{39414, author = {{Anerot, Baptiste and Cresson, Jacky and Hariz Belgacem, Khaled and Pierret, Frederic}}, issn = {{0022-2488}}, journal = {{Journal of Mathematical Physics}}, keywords = {{Mathematical Physics, Statistical and Nonlinear Physics}}, number = {{11}}, publisher = {{AIP Publishing}}, title = {{{Noether’s-type theorems on time scales}}}, doi = {{10.1063/1.5140201}}, volume = {{61}}, year = {{2020}}, } @article{39399, author = {{Anerot, Baptiste and Cresson, Jacky and Hariz Belgacem, Khaled and Pierret, Frederic}}, issn = {{0022-2488}}, journal = {{Journal of Mathematical Physics}}, keywords = {{Mathematical Physics, Statistical and Nonlinear Physics}}, number = {{11}}, publisher = {{AIP Publishing}}, title = {{{Noether’s-type theorems on time scales}}}, doi = {{10.1063/1.5140201}}, volume = {{61}}, year = {{2020}}, } @article{37789, author = {{Weigelt, Matthias and Güldenpenning, Iris and Steggemann-Weinrich, Yvonne}}, issn = {{2152-7180}}, journal = {{Psychology}}, keywords = {{General Earth and Planetary Sciences, General Environmental Science}}, number = {{10}}, pages = {{1493--1510}}, publisher = {{Scientific Research Publishing, Inc.}}, title = {{{The Head-Fake Effect in Basketball Is Based on the Processing of Head Orientation, but Not on Gaze Direction}}}, doi = {{10.4236/psych.2020.1110095}}, volume = {{11}}, year = {{2020}}, } @article{46636, author = {{Böhm, Eva and Eggert, Andreas and Terho, Harri and Ulaga, Wolfgang and Haas, Alexander}}, issn = {{0885-3134}}, journal = {{Journal of Personal Selling and Sales Management}}, keywords = {{Management of Technology and Innovation, Human Factors and Ergonomics}}, number = {{3}}, pages = {{180--197}}, publisher = {{Informa UK Limited}}, title = {{{Drivers and outcomes of salespersons’ value opportunity recognition competence in solution selling}}}, doi = {{10.1080/08853134.2020.1778484}}, volume = {{40}}, year = {{2020}}, } @article{37829, abstract = {{Reactions to the pass of a basketball player performing a head fake are typically slower than reactions to a basketball player who passes without a head fake (i.e., head-fake effect). The present study shows that extensive practice reduces the head-fake effect in basketball. Additional analyses were conducted to explore the mechanism behind the reduced head-fake effect. First, we analyzed whether or not participants developed some control over the processing of irrelevant gaze direction, as indicated by specific trial-to-trial adaptations (i.e., congruency sequence effect). Second, we fitted the individual frequency distributions of RTs to ex-Gaussian distributions, to evaluate if practice specifically affects the Gaussian part of the distribution or the exponential part of the distribution. Third, we modeled individual RT distributions as the so-called mixture effects to examine whether the way irrelevant gaze direction impacts performance (either occasionally but massively or continuously but moderately) changes with practice. The analyses revealed that the effect of practice could not be explained with an increasing congruency-sequence effect. Also, it could not be found in the ex-Gaussian distributional analyses. The assumption that residual failure to inhibit the processing of the gaze direction in contrast to continuous failures to do so might favor mixed effects over uniform effects at later courses of practice could not be validated. The reduced head-fake effect thus is argued to source in participants’ general increasing ability to inhibit the processing of the task-irrelevant gaze direction information and/or in a priority shift of gaze processing to a processing of the pass direction.}}, author = {{Güldenpenning, Iris and Schütz, Christoph and Weigelt, Matthias and Kunde, Wilfried}}, issn = {{0340-0727}}, journal = {{Psychological Research}}, keywords = {{Arts and Humanities (miscellaneous), Developmental and Educational Psychology, Experimental and Cognitive Psychology, General Medicine}}, pages = {{823--833}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Is the head-fake effect in basketball robust against practice? Analyses of trial-by-trial adaptations, frequency distributions, and mixture effects to evaluate effects of practice}}}, doi = {{10.1007/s00426-018-1078-4}}, volume = {{84}}, year = {{2020}}, } @article{37823, author = {{Güldenpenning, Iris and Kunde, Wilfried and Weigelt, Matthias}}, issn = {{0001-6918}}, journal = {{Acta Psychologica}}, keywords = {{Arts and Humanities (miscellaneous), Developmental and Educational Psychology, Experimental and Cognitive Psychology, General Medicine}}, pages = {{103013}}, publisher = {{Elsevier BV}}, title = {{{Cognitive load reduces interference by head fakes in basketball}}}, doi = {{10.1016/j.actpsy.2020.103013}}, volume = {{203}}, year = {{2020}}, } @article{45586, abstract = {{AbstractWe have collected data from a world-wide survey among COP delegates to empirically investigate preferences for certain burden sharing rules among key groups in a setting that reflects the possibility of observing concessions from negotiating partners. In our survey, the participants had the opportunity to select and combine up to eight (pre-defined) burden sharing rules and to assign relative weights to the selected rules in their preferred bundle. We examine whether such a mechanism helps to overcome the currently strictly (self-interested) strategic claims on equity in the negotiation process. We observe that delegates from different groups of countries show a general willingness for concessions. However, the degree to which different burden sharing rules are taken into consideration partly differs between countries. As a key insight we report that the individual assessment of the polluter-pays rule based on current emissions does not only stress the persistence of the traditional Annex-B/Non-Annex-B division but also suggests tendencies for a more fragmented grouping with different positions between, for example, delegates from developing countries (i.e. G77 members) and emerging countries (i.e. BASIC). At the same time, we observe tendencies for a more harmonized view among key groups towards the ability-to-pay rule in a setting of weighted burden sharing rules.}}, author = {{Kesternich, Martin and Löschel, Andreas and Ziegler, Andreas}}, issn = {{1432-847X}}, journal = {{Environmental Economics and Policy Studies}}, keywords = {{Management, Monitoring, Policy and Law, Economics and Econometrics}}, number = {{2}}, pages = {{309--331}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Negotiating weights for burden sharing rules in international climate negotiations: an empirical analysis}}}, doi = {{10.1007/s10018-020-00289-0}}, volume = {{23}}, year = {{2020}}, } @inproceedings{47045, author = {{Güldenpenning, Iris}}, booktitle = {{Zeitschrift für Sportpsychologie}}, keywords = {{Applied Psychology, Physical Therapy, Sports Therapy and Rehabilitation, Social Psychology}}, number = {{2}}, pages = {{80--81}}, publisher = {{Hogrefe Publishing Group}}, title = {{{Bericht zur 52. Tagung der Arbeitsgemeinschaft für Sportpsychologie: Neues Format, unbekannte Talente und Belohnungsaufschub}}}, doi = {{10.1026/1612-5010/a000300}}, volume = {{27}}, year = {{2020}}, } @article{38051, abstract = {{The characterisation of loss in optical waveguides is essential in understanding the performance of these devices and their limitations. Whilst interferometric-based methods generally provide the best results for low-loss waveguides, they are almost exclusively used to provide characterization in cases where the waveguide is spatially single-mode. Here, we introduce a Fabry-Pérot-based scheme to estimate the losses of a nonlinear (birefringent or quasi-phase matched) waveguide at a wavelength where it is multi-mode. The method involves measuring the generated second harmonic power as the pump wavelength is scanned over the phase matching region. Furthermore, it is shown that this method allows one to infer the losses of different second harmonic spatial modes by scanning the pump field over the separated phase matching spectra. By fitting the measured phase matching spectra from different titanium indiffused lithium niobate waveguides to the model presented in this paper, it is shown that one can estimate the second harmonic losses of a single spatial-mode, at wavelengths where the waveguides are spatially multi-mode.}}, author = {{Santandrea, Matteo and Stefszky, Michael and Roeland, Ganaël and Silberhorn, Christine}}, issn = {{1094-4087}}, journal = {{Optics Express}}, keywords = {{Atomic and Molecular Physics, and Optics}}, number = {{4}}, publisher = {{Optica Publishing Group}}, title = {{{Interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation.}}}, doi = {{10.1364/oe.380788}}, volume = {{28}}, year = {{2020}}, } @article{40381, abstract = {{Abstract The phenomenon of entanglement is the basis of quantum information and quantum communication processes. Entangled systems with a large number of photons are of great interest at present because they provide a platform for streaming technologies based on photonics. In this paper we present a device which operates with four-photons and based on the Hong–Ou–Mandel interference. The presented device allows to maximize the degree of spatial entanglement and generate the highly entangled four-dimensional Bell states. Furthermore, the use of the interferometer in different regimes leads to fast interference fringes in the coincidence probability with period of oscillations twice smaller than the pump wavelength. We have a good agreement between theoretical simulations and experimental results.}}, author = {{Ferreri, A and Ansari, V and Brecht, Benjamin and Silberhorn, Christine and Sharapova, Polina R.}}, issn = {{2058-9565}}, journal = {{Quantum Science and Technology}}, keywords = {{Electrical and Electronic Engineering, Physics and Astronomy (miscellaneous), Materials Science (miscellaneous), Atomic and Molecular Physics, and Optics}}, number = {{4}}, publisher = {{IOP Publishing}}, title = {{{Spatial entanglement and state engineering via four-photon Hong–Ou–Mandel interference}}}, doi = {{10.1088/2058-9565/abb411}}, volume = {{5}}, year = {{2020}}, } @article{37933, abstract = {{We present a time-over-threshold readout technique to count the number of activated pixels from an array of superconducting nanowire single photon detectors (SNSPDs). This technique places no additional heatload on the cryostat, and retains the intrinsic count rate of the time-tagger. We demonstrate proof-of-principle operation with respect to a four-pixel device. Furthermore, we show that, given some permissible error threshold, the number of pixels that can be reliably read out scales linearly with the intrinsic signal-to-noise ratio of the individual pixel response.}}, author = {{Tiedau, Johannes and Schapeler, Timon and Anant, Vikas and Fedder, Helmut and Silberhorn, Christine and Bartley, Tim}}, issn = {{1094-4087}}, journal = {{Optics Express}}, keywords = {{Atomic and Molecular Physics, and Optics}}, number = {{4}}, publisher = {{Optica Publishing Group}}, title = {{{Single-channel electronic readout of a multipixel superconducting nanowire single photon detector}}}, doi = {{10.1364/oe.383111}}, volume = {{28}}, year = {{2020}}, } @article{34841, abstract = {{We give an exact formula for the number of G-extensions of local function fields Fq((t)) for finite abelian groups G up to a conductor bound. As an application we give a lower bound for the corresponding counting problem by discriminant. }}, author = {{Klüners, Jürgen and Müller, Raphael}}, issn = {{0022-314X}}, journal = {{Journal of Number Theory}}, keywords = {{Algebra and Number Theory}}, pages = {{311--322}}, publisher = {{Elsevier BV}}, title = {{{The conductor density of local function fields with abelian Galois group}}}, doi = {{10.1016/j.jnt.2019.11.007}}, volume = {{212}}, year = {{2020}}, } @article{49278, abstract = {{Beziehungen zwischen Erwachsenen und ihren Eltern sind durch Interdependenzen und Dependenzen gekennzeichnet. Während das Zusammenleben von Familien mit Kindern im mittleren Erwachsenenalter dabei ganz überwiegend durch Interdependenz geprägt ist, nehmen im Alter Dependenzen durch gesundheitliche Beeinträchtigungen der Eltern zu. Mit Blick darauf werden im Artikel behaviorale, kognitive und emotionale Merkmale von Eltern-Kind-Beziehungen erläutert und theoretisch in zentrale Konzepte eingebettet. Das Verhalten ist durch Solidarität zwischen den Generationen, aber auch durch Aspekte des Einflusses innerhalb der Beziehung und aufeinander, gekennzeichnet. Um Familienkognitionen zu beschreiben, werden die verwandten Konzepte der Individuation und der filialen Reife herangezogen. Verhalten, wie auch Kognitionen, sind eng mit dem dritten Beziehungsmerkmal, der Affektivität verknüpft, das neben positiven auch negative Gefühle sowie Ambivalenzen umfasst.}}, author = {{Buhl, Heike M. and Sommer, Sabrina}}, issn = {{1613-2637}}, journal = {{Psychotherapie im Alter}}, keywords = {{General Earth and Planetary Sciences, General Environmental Science}}, number = {{2}}, pages = {{123--135}}, publisher = {{Psychosozial Verlag}}, title = {{{Intergenerationelle Beziehungen in der Familie}}}, doi = {{10.30820/1613-2637-2019-2-123}}, volume = {{16}}, year = {{2020}}, } @article{5674, abstract = {{In disaster operations management, a challenging task for rescue organizations occurs when they have to assign and schedule their rescue units to emerging incidents under time pressure in order to reduce the overall resulting harm. Of particular importance in practical scenarios is the need to consider collaboration of rescue units. This task has hardly been addressed in the literature. We contribute to both modeling and solving this problem by (1) conceptualizing the situation as a type of scheduling problem, (2) modeling it as a binary linear minimization problem, (3) suggesting a branch-and-price algorithm, which can serve as both an exact and heuristic solution procedure, and (4) conducting computational experiments - including a sensitivity analysis of the effects of exogenous model parameters on execution times and objective value improvements over a heuristic suggested in the literature - for different practical disaster scenarios. The results of our computational experiments show that most problem instances of practically feasible size can be solved to optimality within ten minutes. Furthermore, even when our algorithm is terminated once the first feasible solution has been found, this solution is in almost all cases competitive to the optimal solution and substantially better than the solution obtained by the best known algorithm from the literature. This performance of our branch-and-price algorithm enables rescue organizations to apply our procedure in practice, even when the time for decision making is limited to a few minutes. By addressing a very general type of scheduling problem, our approach applies to various scheduling situations.}}, author = {{Rauchecker, Gerhard and Schryen, Guido}}, journal = {{European Journal of Operational Research}}, keywords = {{OR in disaster relief, disaster operations management, scheduling, branch-and-price}}, number = {{1}}, pages = {{352 -- 363}}, publisher = {{Elsevier}}, title = {{{An Exact Branch-and-Price Algorithm for Scheduling Rescue Units during Disaster Response}}}, volume = {{272}}, year = {{2019}}, } @article{6512, abstract = {{Scheduling problems are essential for decision making in many academic disciplines, including operations management, computer science, and information systems. Since many scheduling problems are NP-hard in the strong sense, there is only limited research on exact algorithms and how their efficiency scales when implemented on parallel computing architectures. We address this gap by (1) adapting an exact branch-and-price algorithm to a parallel machine scheduling problem on unrelated machines with sequence- and machine-dependent setup times, (2) parallelizing the adapted algorithm by implementing a distributed-memory parallelization with a master/worker approach, and (3) conducting extensive computational experiments using up to 960 MPI processes on a modern high performance computing cluster. With our experiments, we show that the efficiency of our parallelization approach can lead to superlinear speedup but can vary substantially between instances. We further show that the wall time of serial execution can be substantially reduced through our parallelization, in some cases from 94 hours to less than six minutes when our algorithm is executed on 960 processes.}}, author = {{Rauchecker, Gerhard and Schryen, Guido}}, journal = {{Computers & Operations Research}}, keywords = {{parallel machine scheduling with setup times, parallel branch-and-price algorithm, high performance computing, master/worker parallelization}}, number = {{104}}, pages = {{338--357}}, publisher = {{Elsevier}}, title = {{{Using High Performance Computing for Unrelated Parallel Machine Scheduling with Sequence-Dependent Setup Times: Development and Computational Evaluation of a Parallel Branch-and-Price Algorithm}}}, year = {{2019}}, } @techreport{13146, abstract = {{Employing a sample of 492 merger and acquisition (M&A) announcements from 284 acquirers across North America and Europe between 2005 and 2018, this study analyzes the impact of M&A announcements on an acquirers abnormal CDS spread changes. We find that spreads from CDS which are written on acquirers increase by 310 bps during a symmetric five-day event window suggesting that investors expect an increase in the acquirers credit risk exposure due to M&As. Next to this baseline finding, we conduct a large variety of sensitivity analyses to gain more insight into the driving factors of the rising risk perception of CDS investors due to M&A announcements.}}, author = {{Hippert, Benjamin}}, keywords = {{credit default swaps, risk perception of CDS investors, mergers and acquisitions, event study}}, title = {{{The relationship between announcements of complete mergers and acquisitions and acquirers' abnormal CDS spread changes}}}, year = {{2019}}, }