bluuebunny/crossref_metadata_2025_split huggingface dataset:
Moving Onwards: An Action Continuation Strategy in Finding the Way
Authors: van Tilburg Wijnand A. P. , Igou Eric R. 
Published: March 2014

ABSTRACTIn four studies, we examined people's strategies when deciding between multiple routes of equivalent length in way‐finding tasks. The results reveal the important role of continuing behavior when faced with a choice from multiple viable routes. After affirming the existence of asymmetric preferences for alternatives (Studies 1 and 2), we observed that variations of simple known‐environment mazes supported action continuation as prevailing process over alternative strategies such as preference for long initial path segments, paths with a least deviating angle, and a modified hill climbing strategy (Study 3). Moreover, asymmetric preferences disappeared with the absence of initial behavior to inform subsequent decision making (Study 4). Results are discussed within the context of decision making, navigation strategies, and everyday life path finding. Copyright © 2014 John Wiley & Sons, Ltd.
Environmentally Sustainable Development through Stakeholder Engagement in Developed and Emerging Countries
Authors: Dögl Corinna , Behnam Michael 
Published: March 2014

AbstractThis cross‐country study investigates the antecedents and outcomes of corporate environmental responsibility (CER) practices in developed and emerging countries. Based on stakeholder and institutional theory, we conducted an empirical study among firms in Germany, USA, India and China. We found support for a significant positive relationship between regulatory, market and social stakeholder influences, CER practices and business outcomes in the total and individual country samples. Regarding country differences, our data reveal significant similarities and differences between developed and emerging countries. Market stakeholder influences are stronger in developed countries, whereas regulatory and social stakeholder influences do not differ significantly between the two country groups. The relationship between CER practices and positive business outcomes is stronger in emerging than in developed countries. Implications for institutional theory and organizations are outlined. Copyright © 2014 John Wiley & Sons, Ltd and ERP Environment
A Commercially Available Tantalum Catalyst for the Highly Regioselective Intermolecular Hydroaminoalkylation of Styrenes
Authors: Dörfler Jaika , Doye Sven 
Published: March 2014

AbstractThe C–C bond‐forming catalytic hydroaminoalkylation of terminal alkenes or styrenes enables a direct and 100 % atom‐efficient synthesis of amines and can generally result in the formation of two regioisomers, the branched and the linear product. Herein, we report that high‐yielding intermolecular hydroaminoalkylation reactions of styrenes can be achieved with excellent regioselectivities in the presence of the commercially available homoleptic catalyst pentakis(dimethylamino)tantalum. In all cases, the branched regioisomer is formed almost exclusively.
BREAKING THE ADDICTION TO TECHNOLOGY ADOPTION
Authors: Bryan Stirling , Mitton Craig , Donaldson Cam 
Published: March 2014

ABSTRACTA major driver of cost growth in health care is the rapid increase in the utilisation of existing technology and not simply the adoption of new technology. Health economists and their health technology assessment colleagues have become obsessed by technology adoption questions and have largely ignored ‘technology management’ questions. Technology management would include the life‐cycle assessment of technologies in use, to assess their real‐world performance; and monitoring of technology indication creep. A rebalancing of focus might serve to encourage a more self‐critical and learning culture amongst those involved in technology evaluation analysis. Further, health economists and health technology assessment analysts could make a more significant contribution to system efficiency through rebalancing their efforts away from technology adoption questions towards technology management issues. Copyright © 2014 John Wiley & Sons, Ltd.
ORDER FLOWS, FUNDAMENTALS AND EXCHANGE RATES
Authors: Iwatsubo Kentaro , Marsh Ian W. 
Published: March 2014

ABSTRACTWe examine the links between end‐user order flows as seen by a major European commercial bank and macroeconomic fundamentals. We show that both exchange rate changes and flows are only weakly related to macroeconomic news announcements and hypothesize that ‘the cat is already out of the bag’ by the time the news is announced. Instead, order flows of financial and corporate customers reflect in real time the evolution of macroeconomies. The actions of the banks receiving the order flows in turn reveal the information to the market as a whole, which prices the exchange rate accordingly. By the time the news is announced, the exchange rate already contains the majority of the information. Copyright © 2014 John Wiley & Sons, Ltd.
Modeling of ultra‐wideband indoor channels with the modified leapfrog ADI‐FDTD method
Authors: Zhai Meng‐Lin , Yin Wen‐Yan , Chen Zhizhang (David) , Nie Hong , Wang Xiang‐Hua 
Published: March 2014

SUMMARYFull‐wave time‐domain electromagnetic methods are usually effective in rigorously modeling and evaluating ultra‐wideband (UWB) wireless channels. However, their computational expenditures are expensive, when they are used to deal with electrically large‐size problems consisting of fine structures. In order to reduce computational time, the unconditionally stable leapfrog alternating‐direction implicit finite‐difference time‐domain (leapfrog ADI‐FDTD) method has been proposed recently. In this paper, the leapfrog ADI‐FDTD algorithm is developed for simulating lossy objects, such as office walls, floors, and ceilings, for UWB communication channel characterization. It leads to effective UWB channel characterization with power‐decay time constant, path loss exponent, and probability distribution of power gain. In comparison with the conventional FDTD, the proposed method can achieve 60% saving in computational time while retaining good accuracy. Copyright © 2014 John Wiley & Sons, Ltd.
Dynamic behavior of a distributed incinerator power system under output power variation
Authors: Chen Meng‐Jen , Wu Yu‐Chi , Liu Guo‐Tsair , Chen Jong‐Fang 
Published: March 2014

SUMMARYIn Taiwan, the sales revenues of power generation from incinerator power plants with heat recovery power generation sold to the power company were up to NT$4.5bn, making the incinerator power generation play an important role in reduction of impact on environment and substitution of energy in power generation. Studying the dynamic behavior of incinerator power systems under output power variation is thus an essential task for the scheduling, operation, and expansion of incinerator power plants, such as, for cooperating with a scheduling program based on pricing signals to capture energy trading timing economically and to operate the incinerator power system securely. Although there are many studies on incinerator power generation, they seldom discuss the power generation system characteristics. In this paper, mathematical dynamic models for a distributed incinerator power system were derived and implemented using Matlab/Simulink, and dynamic characteristics of the system were further simulated and discussed under two operating modes: increment and decrement of power generation. These developed models can provide dynamic characteristics for these two modes, serving as an important analytic tool for cooperating with a scheduling program based on pricing signals to capture energy trading timing economically and to operate the incinerator power system securely. Copyright © 2014 John Wiley & Sons, Ltd.
Michler's Ketone as an Interesting Scaffold for the Design of High‐Performance Dyes in Photoinitiating Systems Upon Visible Light
Authors: Mokbel Haifaa , Dumur Frédéric , Graff Bernadette , Mayer Cédric R. , Gigmes Didier , Toufaily Joumana , Hamieh Tayssir , Fouassier Jean‐Pierre , Lalevée Jacques 
Published: March 2014

Four new push–pull dyes derived from Michler's ketones are investigated. These dyes, based on a donor–π–acceptor (D–π–A) structure, exhibit a tunable character according to the electron‐withdrawing ability of the acceptor used. The new proposed structures can be used in high‐performance photoinitiating systems. Remarkably, two of them are characterized by an excellent reactivity to initiate the free‐radical polymerization of acrylates, the ring‐opening polymerization of epoxides, as well as the synthesis of interpenetrating polymer networks (IPNs) under exposure to a laser diode at 457 nm. The chemical mechanisms are investigated by steady‐state photolysis, fluorescence, and electron spin‐resonance (ESR) experiments.
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Multi‐objective Approaches to the Unit Crewing Problem in Airline Crew Scheduling
Authors: Tam Bassy , Ryan David , Ehrgott Matthias 
Published: March 2014

ABSTRACTThe goal of the crew pairing problem is to partition a flight schedule into sequences of flights called pairings that crew members can operate at minimum cost. It is solved for each crew rank, for example, captains and first officers. In optimised crew pairings, crew often split and join other crew to operate outgoing flights. Because minimum cost pairings contain little buffer time, crew splitting after a delayed flight contributes to the propagation of delay. This effect can be avoided by unit crewing, that is, by keeping crew of different ranks together for as long as possible during a pairing. However, increasing unit crewing increases cost.We investigate sequential and parallel methods for unit crewing, explicitly considering the two objectives of minimising cost and maximising unit crewing. We apply multi‐objective techniques in the sequential approach, where the (minimum cost) pairing problem for one crew rank is solved first and both objectives feature when solving for the second crew rank. Because the quality of the pairings obtained by this method is limited by the solution for the first crew rank, we then propose to solve the two crew pairing problems simultaneously, again using multi‐objective optimisation methods. We introduce a multi‐objective optimisation model for this problem and propose a new heuristic branching technique that favours unit crewed pairings when applied to a scalarised model with an auxiliary objective function. We compare this with a direct approach with management of the number of unit crewing constraints and a Dantzig–Wolfe decomposition approach.Numerical tests on domestic New Zealand data show that the multi‐objective approaches considerably increase the level of unit crewing, without much increase in cost, even in the sequential approach. Moreover, we show that the parallel approach is superior in terms of quality of the pairing solution but computationally more expensive. The heuristic branching technique provides good quality solutions in reasonable time, as compared with the Dantzig–Wolfe method. Copyright © 2014 John Wiley & Sons, Ltd.
A Multicriteria Dial‐a‐Ride Problem with an Ecological Measure and Heterogeneous Vehicles
Authors: Atahran Ahmed , Lenté Christophe , T'kindt Vincent 
Published: March 2014

ABSTRACTThe Dial‐a‐Ride Problem is a complex combinatorial optimization problem with many real‐world applications in transportation of persons. It consists in routing a fleet of vehicles based at a common depot in order to satisfy users' transportation requests. Each request may consist, in a number of persons, a specified pickup location, a destination location, desired departure and arrival time windows. In this paper, we investigate a new and general model for the transportation of persons. It involves three objective functions that have to be optimized in order to measure the potential efficiency of the Dial‐a‐Ride Problem solution on different aspects: the cost for the transportation operator, the quality of service for users and the impact on the environment. For an efficient search through the solution space, we use a multiobjective genetic algorithm, which allows us to identify a good approximation of the set of Pareto optimal solutions. Among this set of solutions, the decision‐maker can select the solution with best compromise according to its preferences, without introducing a priori information about these ones. The proposed genetic algorithm is based on an optimal timing algorithm that computes pickup and delivery dates when the requests are sequenced on the vehicles. Copyright © 2014 John Wiley & Sons, Ltd.
Digital cell quantification identifies global immune cell dynamics during influenza infection
Authors: Altboum Zeev , Steuerman Yael , David Eyal , Barnett‐Itzhaki Zohar , Valadarsky Liran , Keren‐Shaul Hadas , Meningher Tal , Mendelson Ella , Mandelboim Michal , Gat‐Viks Irit , Amit Ido 
Published: March 2014

AbstractHundreds of immune cell types work in coordination to maintain tissue homeostasis. Upon infection, dramatic changes occur with the localization, migration, and proliferation of the immune cells to first alert the body of the danger, confine it to limit spreading, and finally extinguish the threat and bring the tissue back to homeostasis. Since current technologies can follow the dynamics of only a limited number of cell types, we have yet to grasp the full complexity of globalin vivocell dynamics in normal developmental processes and disease. Here, we devise a computational method, digital cell quantification (DCQ), which combines genome‐wide gene expression data with an immune cell compendium to inferin vivochanges in the quantities of 213 immune cell subpopulations.DCQwas applied to study global immune cell dynamics in mice lungs at ten time points during 7 days of flu infection. We find dramatic changes in quantities of 70 immune cell types, including various innate, adaptive, and progenitor immune cells. We focus on the previously unreported dynamics of four immune dendritic cell subtypes and suggest a specific role forCD103+CD11b−DCs in early stages of disease andCD8+pDCin late stages of flu infection.
Alternative polyadenylation diversifies post‐transcriptional regulation by selective RNA–protein interactions
Authors: Gupta Ishaan , Clauder‐Münster Sandra , Klaus Bernd , Järvelin Aino I , Aiyar Raeka S , Benes Vladimir , Wilkening Stefan , Huber Wolfgang , Pelechano Vicent , Steinmetz Lars M 
Published: March 2014

AbstractRecent research has uncovered extensive variability in the boundaries of transcript isoforms, yet the functional consequences of this variation remain largely unexplored. Here, we systematically discriminate between the molecular phenotypes of overlapping coding and non‐coding transcriptional events from each genic locus using a novel genome‐wide, nucleotide‐resolution technique to quantify the half‐lives of 3′ transcript isoforms in yeast. Our results reveal widespread differences in stability among isoforms for hundreds of genes in a single condition, and that variation of even a single nucleotide in the 3′ untranslated region (UTR) can affect transcript stability. While previous instances of negative associations between 3′ UTR length and transcript stability have been reported, here, we find that shorter isoforms are not necessarily more stable. We demonstrate the role of RNA‐protein interactions in conditioning isoform‐specific stability, showing that PUF3 binds and destabilizes specific polyadenylation isoforms. Our findings indicate that although the functional elements of a gene are encoded in DNA sequence, the selective incorporation of these elements into RNA through transcript boundary variation allows a single gene to have diverse functional consequences.
Gefangen im Fokus des Lasers
Authors: Kruse Annika , Alpmann Christina , Denz Cornelia 
Published: March 2014

AbstractDas Experimentierlabor MExLab Physik der WWU Münster hat eine dynamische optische Pinzette entwickelt, die das Prinzip dieser neuen Technologie als mobiles Exponat an Schulen bringt. Beim Experimentieren können Lehrkräfte, Kinder und Jugendliche das physikalische Prinzip des optischen Fangens von Mikropartikeln mit Laserlicht erforschen und verstehen. Die zu fangenden Objekte reichen von mikroskopischen Silicakugeln über stäbchenförmige Bakterien aus Heuaufgüssen bis hin zu Zellen. Schülerinnen und Schüler erkunden damit die aktuelle Schnittstelle zwischen Photonik und Lebenswissenschaften.
Voyager 1 ist im interstellaren Raum
Authors: Fahr Hans J. 
Published: March 2014

AbstractNeue Messungen der Plasmaeigenschaften in der Umgebung von Voyager 1 belegen, dass die Raumsonde die Heliosphäre verlassen und den interstellaren Raum erreicht hat. Insbesondere Messungen der Ionendichten, Elektronenplasma‐Schwingungen und Magnetfelder entsprechen den Vorhersagen für den Übergang in das interstellare Medium.
Schrödinger‐Katzen mit 111 Photonen
Authors: Kirchmair Gerhard 
Published: March 2014

AbstractDie Kopplung von Quibits an Mikrowellenresonatoren ermöglicht eine hervorragende Kontrolle von Quantenzuständen. In Experimenten an der Universität Yale ist es jetzt gelungen, die Quanteninformation eines einzelnen supraleitenden Quantenbits auf ein Ensemble von Mikrowellenphotonen, die sich in einem Schrödinger‐Katzen‐Zustand befinden, zu übertragen. Dies ist der erste Schritt in Richtung eines neuartigen, fehlertoleranten Quantenspeichers, in dem die Information in Schrödinger‐Katzen‐Zuständen kodiert ist.
Das farbenprächtige Glitzern frischen Schnees
Authors: Vollmer Michael , Shaw Joseph A. 
Published: March 2014

AbstractRegenbögen, Halos, Koronen, Himmelsfarben – es gibt eine Vielzahl farbenprächtiger Phänomene in der Natur, verursacht durch Reflexion, Brechung oder allgemein gesprochen durch Streuung des Lichts an Wassertropfen, Eiskristallen oder Aerosolen. Das farbige Glitzern einer Schneeschicht scheint zunächst anderer Natur zu sein, lässt sich aber auf analoge Weise erklären.
Proteomic and genomic analyses suggest the association of apolipoprotein C1 with abdominal aortic aneurysm
Authors: Moxon Joseph V. , Liu Dawei , Moran Corey S. , Crossman David J. , Krishna Smriti M. , Yonglitthipagon Ponlapat , Emeto Theophilus I. , Morris Dylan R. , Padula Matthew P. , Mulvenna Jason P. , Rush Catherine M. , Golledge Jonathan 
Published: March 2014

PurposeAbdominal aortic aneurysm (AAA) is an important cause of mortality in the elderly. Mouse models are widely used to investigate AAA pathogenesis but their suitability for biomarker discovery is unexplored.Experimental designWe conducted a three‐phase study. Phase 1: Aortas from angiotensin‐II‐infused apolipoprotein E deficient (ApoE−/−) mice with and without AAA were assessed via iTRAQ and analyzed in silico to identify potential circulating markers. Microarray data from ApoE−/− mice and human patients were analyzed in parallel. Phase 2: Putative markers were compared between datasets to shortlist common candidates. Phase 3: The relationship of two shortlisted markers and AAA presence was assessed.ResultsiTRAQ identified eight proteins with biomarker potential. Microarray data identified 72 and 96 potential biomarkers from ApoE−/− mice and human patients, respectively. All three datasets suggested apolipoprotein C1 (ApoC1) as a marker for AAA; microarray data identified matrix metalloproteinase 9 (MMP9) as a second potential marker. Plasma ApoC1 and MMP9 concentrations positively correlated with AAA diameter in ApoE−/− mice.Conclusions and clinical relevanceApoC1 may be a novel biomarker for AAA.
Vacancy defect formation in PA‐MBE grown C‐doped InN
Authors: Prozheeva Vera , Tuomisto Filip , Koblmüller Gregor , Speck James S. , Knübel Andreas , Aidam Rolf 
Published: March 2014

AbstractPositron annihilation spectroscopy has been used to study vacancy defects formed in PA‐MBE grown carbondoped indium nitride. The carbon concentration of doped samples varied in the range from 1.5 × 1017 cm–3 to 2.5 × 1018 cm–3. The experimental data indicates the existence of vacancy complexes containing both In and N vacancies, with the VIn component dominant from the positron annihilation point of view. The vacancy content increases along with increasing carbon content from less than 1 × 1016 cm–3 in the undoped sample up to at least 4 × 1016 cm–3 in the doped samples. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Optical degradation and defect activation in MOVPE grown near surface InGaN quantum wells under low energy electron beam irradiation
Authors: Riuttanen Lauri , Nykänen Henri , Suihkonen Sami , Sopanen Markku 
Published: March 2014

AbstractIn this paper, we present out studies on low energy electron beam induced optical degradation and defect activation of indium gallium nitride quantum wells. A clear reduction in band‐to‐band photoluminescence of metal organic vapor phase epitaxy grown III‐nitride films and quantum well structures treated with low energy electron beam has been found before. It has been proposed that the photoluminescence degradation is caused by activation of in‐grown gallium vacancies and hydrogen complexes.The electron beam dissipation profiles are studied in order to obtain more information on the possible vacancy activation mechanism. Monte‐Carlo simulations and cubic polynomial approximation of the Bethe‐Bloch formula are compared with measured photoluminescence degradation. Our experiments suggests that the reason for photoluminescence decrease is not only dependent on the total energy dissipation density of the electron beam, but on the momentary dissipation density in the irradiated area. Thus, it seems that the degradation probably results from multicollision events. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Thermal oxidation and facet‐formation mechanisms of Si nanowires
Authors: Kioseoglou J. , Komninou Ph. , Zervos M. 
Published: March 2014

AbstractSilicon nanowires were grown along the [111] direction on Si(001) by the vapor–liquid–solid mechanism using 1 nm Au as a catalyst. They were subsequently oxidized at 900 °C for 60 min, 120 min and 180 min, which lead to the formation of a circular shell of amorphous SiO2 surrounding the Si core defined by primary (202), (220) (022) and secondary (422) crystal facets that form a polygon with nine sides having a lower symmetry compared to the hexagonal shape of the Si nanowires before oxidation. We explain the facet‐formation mechanism by the oxidation of alternate vertices of the original hexagon, which leads to the appearance of higher index crystallographic planes tangential to a circle corresponding to the energetically favorable core geometry. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
User terminal antennas for S‐band mobile satellite communication systems
Authors: Tiezzi Ferdinando , Dominguez César , Padilla Jose , Ortiz Noelia , Viganó Carolina , Vaccaro Stefano 
Published: March 2014

SUMMARYThis paper presents the design of two types of S‐band antennas suitable for mobile satellite communication applications. One design is based on omnidirectional radiating elements and targets consumer systems installed on cars. The other uses an array of four elements with electronic switching, controlled by embedded sensors, to generate directive beams with gain higher than the one that could be provided by an omnidirectional antenna. This latter design targets primarily applications for professional vehicles requiring higher data rates, but it also enables the use of S‐band in a wider satellite footprint. The main aspects of antenna design and of validation results are described. Copyright © 2014 John Wiley & Sons, Ltd.