bluuebunny/crossref_metadata_2025_split huggingface dataset:
Note to Self: Stop Calling Interfaces “Natural”
Authors: Hansen Lone Koefoed , Dalsgaard Peter 
Published: October 2015

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>The term “natural” is employed to describe a wide range of novel interactive products and systems, ranging from ges- ture-based interaction to brain-computer interfaces and in marketing as well as in research. However, this terminology is problematic. It establishes an untenable dichotomy be- tween forms of interaction that are natural and those that are not; it draws upon the positive connotations of the term and conflates the language of research with marketing lingo, often without a clear explanation of why novel interfaces can be considered natural; and it obscures the examination of the details of interaction that ought to be the concern of HCI researchers. We are primarily concerned with identify- ing the problem, but also propose two steps to remedy it: recognising that the terminology we employ in research has consequences, and unfolding and articulating in more detail the qualities of interfaces that we have hitherto labelled “natural”. </span></p></div></div></div>
Revisiting the Users Award Programme from a Value Sensitive Design Perspective
Authors: Walldius Åke , Gulliksen Jan , Sundblad Yngve 
Published: October 2015

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>The goal of the UsersAward (UA) programme is to develop and maintain a strategy for enhancing the quality of workplace software through on-going user-driven quality assessment. Key activities are development of sets of quality criteria, as the U</span><span>SER </span><span>C</span><span>ERTIFIED </span><span>2002 and 2006 instruments, and performing large domain specific user satisfaction surveys building on these quality criteria. In 2005 we performed a first analysis of the values that inform the criteria and procedure making up the 2002 instrument, using the Value Sensitive Design methodology. This paper is a follow-up of that study. We report on new types of stakeholders having engaged with the UA programme and reflect on how the conceptual considerations and explicit values of the programme have shifted as a consequence. </span></p></div></div></div>
Residents’ Democratic engagement in public housing and urban areas – structures, formalities and technologies
Authors: Bertelsen Olav W. , Korsgaard Henrik , Kuhn Ingrid , Schröder Carolin , Sundblad Yngve , Tollmar Konrad 
Published: October 2015

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>The workshop gathers people from various sectors inside and outside academia to discuss the current state of, and the prospects for IT in the support of residents’ democratic engagement in, and around, public housing. </span></p></div></div></div>
Embodying Embodied Design Research Techniques
Authors: Wilde Danielle , Tomico Oscar , Lucero Andrés , Höök Kristina , Buur Jacob 
Published: October 2015

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>The value of engaging the full gamut of sensory motor skills in the design and use of smart objects and systems is recognized. Yet methods for arriving at robust and reliable outcomes for their development are not fully understood, nor are they easily reported or transferred through typical conference presentations and paper submissions. New forms of knowledge transfer, such as pictorials (e.g., DIS and RTD conferences), and video are enabling enhanced, image-enriched reporting of outcomes. Y et appropriate transfer of embodied research methods remains elusive. </span></p><p><span>In this workshop we propose to investigate how embodied research techniques may be used as direct and unmediated vehicles for their own reporting. Rather than engaging in oral presentations, participants will lead other participants through a proven embodied method or approach. Small groups will create mash-ups of techniques, exploring ways that the new approaches might coherently be reported. Participants will be encouraged to experiment with different recording techniques, including body-mounted sensing and recording devices, as well as less conventional approaches. The intention is to find appropriate ways of reporting embodied experiments, so that intangible elements are not lost. Participants will be supported to reflect on unfolding discoveries, to share impressions, as well as outcomes, including documentation experiments that aim to tangibly capture and communicate the processes undertaken. </span></p><p><span>Embodied ideation, communication and collaboration techniques enable enhanced creative engagement and assist creativity [2]. By applying such methods to the problem of their reporting, we hope to deepen understanding of how to move towards enriched, nuanced and repeatable methods for embodied design and knowledge transfer. Crucially, our intention is not simply to find the next form of research reporting. Rather, this workshop will engage participants in an experimental enquiry, so that embodied design research may become an active area of inquiry moving forward. </span></p></div></div></div>
ULF foreshock under radial IMF: THEMIS observations and global kinetic simulation Vlasiator results compared
Authors: Palmroth M. , Archer M. , Vainio R. , Hietala H. , Pfau‐Kempf Y. , Hoilijoki S. , Hannuksela O. , Ganse U. , Sandroos A. , Alfthan S. von , Eastwood J. P. 
Published: October 2015

AbstractFor decades, monochromatic large‐scale ultralow frequency (ULF) waves with a period of about 30 s have been observed upstream of the quasi‐parallel bow shock. These waves typically propagate obliquely with respect to the interplanetary magnetic field (IMF), while the growth rate for the instability causing the waves is maximized parallel to the magnetic field. It has been suggested that the mechanism for the oblique propagation concerns wave refraction due to the spatial variability of the suprathermal ions, originating from the E × B drift component. We investigate the ULF foreshock under a quasi‐radial IMF with Vlasiator, which is a newly developed global hybrid‐Vlasov simulation solving the Vlasov equation for protons, while electrons are treated as a charge‐neutralizing fluid. We observe the generation of the 30 s ULF waves and compare their properties to previous literature and multipoint Time History of Events and Macroscale Interactions during Substorms (THEMIS) spacecraft observations. We find that Vlasiator reproduces the foreshock ULF waves in all reported observational aspects. We conclude that the variability of the density and velocity of the reflected back streaming ions determines the large‐scale structure of the foreshock, which affects the wave frequency, wavelength, and oblique propagation. We conclude that the wave refraction may also be at work for radial IMF conditions, which has earlier been thought of as an exception to the refraction mechanism due to the small E × B drift component. We suggest that additional refraction may be caused by the large‐scale spatial variability of the density and velocity of the back streaming ions.
Neogene ice volume and ocean temperatures: Insights from infaunal foraminiferal Mg/Ca paleothermometry
Authors: Lear Caroline H. , Coxall Helen K. , Foster Gavin L. , Lunt Daniel J. , Mawbey Elaine M. , Rosenthal Yair , Sosdian Sindia M. , Thomas Ellen , Wilson Paul A. 
Published: October 2015

AbstractAntarctic continental‐scale glaciation is generally assumed to have initiated at the Eocene‐Oligocene Transition, yet its subsequent evolution is poorly constrained. We reconstruct changes in bottom water temperature and global ice volume from 0 to 17 Ma using δ18O in conjunction with Mg/Ca records of the infaunal benthic foraminifer, O. umbonatus from Ocean Drilling Program (ODP) Site 806 (equatorial Pacific; ~2500 m). Considering uncertainties in core top calibrations and sensitivity to seawater Mg/Ca (Mg/Ca)sw, we produce a range of Mg/Ca‐temperature‐Mg/Casw calibrations. Our favored exponential temperature calibration is Mg/Ca = 0.66 ± 0.08 × Mg/Casw0.27±0.06 × e(0.114±0.02 × BWT) and our favored linear temperature calibration is Mg/Ca = (1.21 ± 0.04 + 0.12 ± 0.004 × BWT (bottom water temperature)) × (Mg/Casw−0.003±0.02) (stated errors are 2 s.e.). The equations are obtained by comparing O. umbonatus Mg/Ca for a Paleocene‐Eocene section from Ocean Drilling Program (ODP) Site 690 (Weddell Sea) to δ18O temperatures, calculated assuming ice‐free conditions during this peak warmth period of the Cenozoic. This procedure suggests negligible effect of Mg/Casw on the Mg distribution coefficient (DMg). Application of the new equations to the Site 806 record leads to the suggestion that global ice volume was greater than today after the Middle Miocene Climate Transition (~14 Ma). ODP Site 806 bottom waters cooled and freshened as the Pacific zonal sea surface temperature gradient increased, and climate cooled through the Pliocene, prior to the Plio‐Pleistocene glaciation of the Northern Hemisphere. The records indicate a decoupling of deep water temperatures and global ice volume, demonstrating the importance of thresholds in the evolution of the Antarctic ice sheet.
Substituent‐Controlled Selective Synthesis of Spirooxindoles and Oxazolyloxindoles via Two Tandem Reactions
Authors: Liu Yun , Xue Jijun , Sun Zhou , Liu Dongxue , Xing Yacheng , Li Ying 
Published: October 2015

AbstractA common synthetic method involving two tandem processes to prepare varieties of oxindole derivatives, which are important bioactive cores that exist widely in natural products and drugs, from similar materials under mild conditions is described. Herein a substituent‐controlled product‐selective strategy succeeded in synthesizing spirooxindoles and oxazolyloxindoles with excellent diastereoselectivity from methyleneindolinones and α‐bromoamides. The synthesis has clear chemoselectivity, which relies on different substituent groups at the nitrogen atoms of α‐bromoamides. From mechanism analysis, the spirooxindoles were constructed via elimination‐Michael‐Michael addition from N‐benzyloxy‐α‐bromoamides, while oxazolyloxindoles were achieved via cyclization‐Michael addition from N‐benzoyl‐α‐bromoamides, both of which cleverly combined the nucleophilic component formation and nucleophile‐triggered cascade reactions in one pot.
Eine Ca2+‐, Mg2+‐ und Zn2+‐basierte dendritische kontraktile Nanovorrichtung mit zwei pH‐abhängigen Bewegungsfunktionen
Authors: Stadler Adrian‐Mihail , Karmazin Lydia , Bailly Corinne 
Published: October 2015

AbstractEine kontraktile dendritische Bewegungsvorrichtung wird beschrieben, die durch die Einwirkung biologisch relevanter Metallionen (Ca2+ als die wichtigste chemische Spezies in der Signalgebung und Regulierung der natürlichen Muskelfunktion sowie Mg2+ und Zn2+) zwei Arten von Bewegungsfunktionen ausführen kann. Erstens, die durch Metallionen induzierte Kontraktion einer linearen Einheit in einen Z‐förmigen zweikernigen Komplex. Zweitens, die Höhenänderung der Z‐förmigen Komplexe durch Transmetallierung. Unter Zuhilfenahme des pH‐abhängigen tren‐Liganden können die beiden Bewegungsfunktionen der Maschine durch abwechselnde Zugabe von Säure und Base gesteuert werden. Die Umwandlung der linearen Form in den Z‐förmigen Komplex geht mit einer Farbänderung von gelb nach rot einher.
Adaptive Active Fault Tolerant Control for Discrete‐Time Systems with Uncertainties
Authors: Song Xiaoqi , Liu Chunsheng , Zhang Shaojie 
Published: October 2015

AbstractAn active fault‐tolerant control scheme for discrete‐time systems is proposed to solve a difficult problem of fault‐tolerant controller design in the presence of partial loss of actuator effectiveness faults and structural parameter uncertainties assumed to be matched, using adaptive control techniques to help a faster and more accurate compensation of failure and uncertainty. An automated fault estimation scheme is developed together with an adaptive model parameter identification to obtain system parameter estimates. With these estimates fed back to the system, a model reference adaptive controller is constructed to achieve a desired tracking performance. Since parameters are obtained and updated online, the control system has an automatic failure compensation capability so as to recognize or reconfigure the control law in real time in response to failure indications. The stability and convergence follow from discrete‐time Lyapunov arguments. Simulation results from the linearized lateral dynamics model of the Boeing 747 airplane are presented to show the efficiency of proposed methods.
Eye‐tracking Social Preferences
Authors: Jiang Ting , Potters Jan , Funaki Yukihiko 
Published: October 2015

AbstractWe hypothesize that if people are motivated by a particular social preference, then choosing in accordance with this preference will lead to an identifiable pattern of eye movements. We track eye movements while subjects make choices in simple three‐person distribution experiments. We characterize each choice in terms of three different types of social preferences: efficiency, maxi‐min, and envy. For the characterization, we use either the choice data or the eye movement data. The evidence indicates that distributional choices are broadly consistent with the choice rule implied by eye movements. In other words, what subjects appear to be interested in when you look at their choices corresponds to what they appear to be interested in when you look at their eye movements. This correspondence lends credibility to the behavioral relevance of social preferences models. Copyright © 2015 John Wiley & Sons, Ltd.
Capturing the multiple facets of mall experience: Developing and validating a scale
Authors: Gilboa Shaked , Vilnai‐Yavetz Iris , Chebat Jean Charles 
Published: October 2015

AbstractMany constructs have been tied to the customer experience in shopping malls, including hedonic shopping motivations, activities, excitement, and emotional and cognitive reactions. Yet the literature has not addressed the notion of the mall experience as a construct in and of itself. The current research aim is to conceptualize the mall experience through the development and validation of a measurement scale. We present a four‐stage process of scale development and validation, based on three studies with four separate samples of mall shoppers, in which the final stage employs the scale to predict mall equity and loyalty. The suggested scale offers a quantitative measurement of four different mall experiences—seductive, functional, social recreation, and social scene—which differ in their components. This work extends theory in understanding, conceptualizing, and measuring the customer experience in the retail space. On the practical level, the developed scale can serve as a means for planning a mall's marketing mix and launching marketing campaigns in order to attract various groups of customers. Copyright © 2015 John Wiley & Sons, Ltd.
Never ever? Characteristics, outcomes and motivations of patients who abscond or escape: A 5‐year review of escapes and absconds from two medium and low secure forensic units
Authors: Mezey Gillian , Durkin Catherine , Dodge Liam , White Sarah 
Published: October 2015

AbstractBackgroundAbsconds and escapes by psychiatric patients from secure forensic psychiatric settings create public anxiety and are poorly understood.AimsTo describe secure hospital patients who escape from within the secure perimeter or abscond, and test for differences between these groups.MethodEscapes and absconds between 2008 and 2012 from the medium and low secure forensic psychiatric inpatient units of two London National Health Service Trusts were identified through the Trusts' databases. Demographic, offending, mental health and incident data were extracted from records for each.ResultsSeventy‐seven incidents, involving 54 patients, were identified over the five years. These were 13 escapes involving 12 patients, representing a rate of 0.04 per 1000 bed days, and 64 absconds involving 42 patients, a rate of 0.26 per 1000 bed days; 15 (28%) patients were absent without leave more than once. Over half of the patients came back voluntarily within 24 hours of leaving. Over 50% of them had drunk alcohol or taken drugs while away from the unit. Escapees were more likely to be transferred prisoners and to have planned their escape, less likely to return to the unit voluntarily and away longer than patients who absconded. Offending was rare during unauthorised leave—just three offences among the 77 incidents; self‐harm was more likely. Motives for absconding included: wanting freedom or drink or drugs, family worries and/or dissatisfaction with aspects of treatment.ConclusionsEscapes or absconding from secure healthcare units have different characteristics, but may best be prevented by convergent strategies. Relational security is likely to be as important for foiling plans for the former as it is for reducing boredom, building strong family support and managing substance misuse in the latter. Copyright © 2015 John Wiley & Sons, Ltd.
Palladium‐Catalyzed Aminocarbonylation of Aliphatic Alkenes with N,N‐Dimethylformamide as an In Situ Source of CO
Authors: Seidensticker Thomas , Furst Marc R. L. , Frauenlob Robin , Vondran Johanna , Paetzold Eckhard , Kragl Udo , Vorholt Andreas J. 
Published: October 2015

AbstractThe palladium‐catalyzed aminocarbonylation of aliphatic alkenes is presented for the first time without the need for external CO pressure. N,N‐dimethylformamide (DMF) is used as an in situ source of both the required carbon monoxide and the amine substrate. The applied palladium catalytic system is well‐known for a number of carbonylation reactions, including those with CO surrogates and tandem isomerizing carbonylations. The reaction pathway was investigated and proved to proceed by an acid‐catalyzed DMF decomposition to CO and dimethyl amine with subsequent aminocarbonylation of the alkene. Pressure‐versus‐time curves gave more insight into the correlation between acid concentration and aminocarbonylation activity. Aliphatic alkenes (terminal and internal) are transformed, also in commercial glassware, into the corresponding linear N,N‐dimethylamides with excellent selectivities. Hence, amide synthesis by aminocarbonylation moves closer to application in standard organic laboratories.
Theoretical and Experimental Optimization of a New Amino Phosphite Ligand Library for Asymmetric Palladium‐Catalyzed Allylic Substitution
Authors: Magre Marc , Biosca Maria , Norrby Per‐Ola , Pàmies Oscar , Diéguez Montserrat 
Published: October 2015

AbstractA new library of modular amino phosphite ligands obtained in a few synthetic steps from enantiopure amino alcohols has been tested in asymmetric Pd‐catalyzed allylic substitution. The modular ligand design is crucial to find highly selective catalysts for each substrate type using a wide range of C‐, N‐, and O‐nucleophiles. A DFT study of the species responsible for the enantiocontrol was used to optimize the ligand structure. By selecting the ligand components, we were able to identify unprecedented catalytic systems that can create new chiral C−C, C−N, and C−O bonds in a variety of substrate types (hindered and unhindered) in high yields and enantioselectivities (ee values up to 99 %). Further studies on the Pd‐π‐allyl intermediates provided a deep understanding of the effect of ligand structure in the origin of enantioselectivity. Potential applications of the new Pd/amino phosphite catalysts were demonstrated by the practical synthesis of a range of chiral carbocycles by simple tandem reactions, with no loss of enantioselectivity.
Three‐Dimensional Nitrogen‐Doped Hierarchical Porous Carbon as an Electrode for High‐Performance Supercapacitors
Authors: Tang Jing , Wang Tao , Salunkhe Rahul R. , Alshehri Saad M. , Malgras Victor , Yamauchi Yusuke 
Published: October 2015

AbstractA facile and sustainable procedure for the synthesis of nitrogen‐doped hierarchical porous carbons with a three‐dimensional interconnected framework (NHPC‐3D) was developed. The strategy, based on a colloidal crystal‐templating method, utilizes nitrogenous dopamine as the precursor due to its unique properties, including self‐polymerization under mild alkaline conditions, coating onto various surfaces, a high carbonization yield, and well‐preserved nitrogen doping after heat treatment. The obtained NHPC‐3D possesses a high surface area of 1056 m2 g−1, a large pore volume of 2.56 cm3 g−1, and a high nitrogen content of 8.2 wt %. The NHPC‐3D is implemented as the electrode material of a supercapacitor and exhibits a specific capacitance as high as 252 F g−1 at a current density of 2 A g−1. The device also shows a high capacitance retention of 75.7 % at a higher current density of 20 A g−1 in aqueous electrolyte due to a sufficient surface area for charge accommodation, reversible pseudocapacitance, and minimized ion‐transport resistance, as a result of the advantageous interconnected hierarchical porous texture. These results showcase NHPC‐3D as a promising candidate for electrode materials in supercapacitors.
Improving financial computation speed with full and subproblem memoization
Authors: Moreno Alexander , Balch Tucker 
Published: October 2015

SummaryAnalysts prototyping trading strategies often reuse previously computed values: both full problems and subproblems. Avoiding recomputing these would increase productivity. We built a memoization library that caches function computations to files to avoid recomputation. This should minimize the need for users to think about whether caching is appropriate while giving them control over speed, accuracy, and space usage. Guo and Engler built an automatic memoization library by modifying the Python interpreter, while jug and joblib are distributed computing libraries that do memoization. Our library attempts to maintain the ease of use of these libraries while offering a higher degree of control of how caching is carried out. It allows control of space usage for individual functions and all memoization, refreshing memoization for a specific function, and accuracy checking, and uses faster hashing and provides a divide and conquer approach to reuse previously computed subproblems. We show that for Markowitz optimization, Fama–French, and the singular value decomposition, memoization using our library greatly speeds up recomputation, often by over 99% versus no memoization and over 80% versus joblib. We also show how a divide‐and‐conquer memoization approach can give large speedups for sorting. Published 2015. This article is a U.S. Government work and is in the public domain in the USA.
Ternary Amides Containing Transition Metals for Hydrogen Storage: A Case Study with Alkali Metal Amidozincates
Authors: Cao Hujun , Richter Theresia M. M. , Pistidda Claudio , Chaudhary Anna‐Lisa , Santoru Antonio , Gizer Gökhan , Niewa Rainer , Chen Ping , Klassen Thomas , Dornheim Martin 
Published: October 2015

AbstractThe alkali metal amidozincates Li4[Zn(NH2)4](NH2)2 and K2[Zn(NH2)4] were, to the best of our knowledge, studied for the first time as hydrogen storage media. Compared with the LiNH2–2 LiH system, both Li4[Zn(NH2)4](NH2)2–12 LiH and K2[Zn(NH2)4]–8 LiH systems showed improved rehydrogenation performance, especially K2[Zn(NH2)4]–8 LiH, which can be fully hydrogenated within 30 s at approximately 230 °C. The absorption properties are stable upon cycling. This work shows that ternary amides containing transition metals have great potential as hydrogen storage materials.