bluuebunny/crossref_metadata_2025_split huggingface dataset:
Construire une interprétation, de l’appropriation de la partition à la répétition
générale. La préparation d’un concert par le chef d’orchestre Pierre-André Valade à
la lumière de l’analyse d’activité
Authors: Donin Nicolas , Theureau Jacques 
Published: August 2019

Alors que les études de l’interprétation musicale ont analysé les
enregistrements orchestraux et questionné les rôles créatifs dans la musique
orchestrale, le manque de travaux sur la direction d’orchestre comme activité est
criant. L’étude de l’activité de lecture de la partition et de direction des
répétitions de Quatre chants pour franchir le seuil de Gérard Grisey par
Pierre-André Valade pour un concert avec l’Ensemble InterContemporain en 2006 vise à
donner une image précise de la préparation d’une interprétation musicale
particulière. Nous avons mis en oeuvre un cadre méthodologique inspiré de
l’ergonomie cognitive et de l’analyse de l’activité, reposant sur la conscience
préréflexive chez le chef d’orchestre de ses actions, pensées, émotions et
focalisations attentionnelles avant, pendant et entre les répétitions. Les données
fines recueillies sur son cours d’action/cognition permettent de le décrire comme
une concaténation d’interactions « in-formatives » (c’est-à-dire « formées de
l’intérieur ») entre lui et l’environnement (y compris la partition et l’orchestre).
Trois notions sont privilégiées : celles de « structure d’anticipation », de
« référentiel » et d’« appropriation » (avec ses divers aspects).
Le paradoxe du clavicorde et la technique de Bach au clavier
Authors: d’Alessandro Christophe 
Published: August 2019

Le jeu du clavicorde demande un contrôle paradoxal : il faut abaisser la touche suffisamment vite pour produire un son suffisamment fort, mais aussi veiller à garder la justesse d’intonation, c’est-à-dire ne pas trop déplacer la corde. Les sources historiques sur le jeu du clavicorde dans le cercle de Jean-Sébastien Bach décrivent une technique de clavier (« tire » ou « Schnellen ») qui semble particulièrement adaptée au contrôle simultané de la vitesse et de la profondeur du toucher. Après une étude théorique qui établit les rapports entre mouvement de la touche, intensité sonore et intonation, une étude expérimentale mesure ces quantités pour un toucher « poussé », vertical et un toucher « tiré », avec retrait du bout du doigt vers l’intérieur de la main. Les résultats indiquent que le contrôle paradoxal demandé par la mécanique spécifique du clavicorde est avantageusement réalisé par le geste décrit dans les sources historiques (un mouvement de retrait circulaire du bout du doigt).
Capture synchrone de la production sonore et de la gestuelle du pianiste. Vers une interprétation
Authors: Villard Alain , Colloud Floren , Valière Jean-Christophe 
Published: August 2019

Une expérience de mise en évidence du rapport entre gestuelle du pianiste et production sonore induite a été réalisée dans un auditorium dédié à la musique orchestrale. Quatre pianistes de parcours et de styles différents ont exécuté quatre pièces extraites desKinderszenen, op. 15 (Scènes d’enfants) de Schumann, qui présentent à la fois une homogénéité musicale, mais aussi une grande variabilité d’atmosphères sonores. Les mesures acoustiques mises en place visaient à capter le signal sonore à l’intérieur et à l’extérieur du piano dans l’objectif d’extraire des descripteurs acoustiques par traitement du signal et à réaliser des tests d’écoute du type de ceux effectués en psychoacoustique. Simultanément et de manière synchronisée, la gestuelle des pianistes a été enregistrée par un système de capture de mouvement (mocap) composé de caméras haute fréquence ultrasensibles. Les pianistes étaient instrumentés par des marqueurs réfléchissants placés sur une combinaison ou directement à même la peau dans le cas des mains et des doigts. Les premiers résultats des tests psychoacoustiques montrent que l’occurrence des timbres attribués aux extraits sonores est conforme à l’occurrence publiée dans la littérature.
Communication between Nations inside Indonesian Softpower Diplomacy in the South Pacific Region
Authors: Roedyati Joevi , Changara Hafied , Dua Michael 
Published: August 2019

Political, financial and operational supports given to these small states to the separatist freedom movement (OPM) has been done in a spirit of togetherness among the Melanesian Spearhead Group (MSG). This international organization based on identity of Melanesian brotherhood which formed in 1986 by 4 small states in the Pacific Fiji, Papua New Guinea, Solomon and Vanuatu, also by Kanak National Liberation Front from New Caledonia. This organization was keen enough to promote the freedom movement of OPM to achieve independence Papua, that was why Indonesia tried to achieve the membership of Melanesian Spearhead Groups (MSG), because Indonesia has a strong argument that as an island country, it has 11 million Melanesian decendants on its scattered island as Papua, Mallocca, Buton, Southeast Nusa) characterized by their hair type, skin color, body figures and have similarities to the Melanesian in the south pacific.
The emergence of political maneuver that continue to attack sovereignty of the Indonesian government against Papua, raising a view of a need to have a grand strategy to enhance more understanding and gaining supports from the small island states regarding the free movement for Papua, especially in the UN forum through public diplomacy in the perspective of communication among nations.
Epitaxial Growth of Large‐Scale Orthorhombic CsPbBr3 Perovskite Thin Films with Anisotropic Photoresponse Property
Authors: Wang Yifan , Yang Feng , Li Xuanze , Ru Fan , Liu Pei , Wang Li , Ji Wei , Xia Jing , Meng Xiangmin 
Published: August 2019

AbstractInorganic cesium lead halide perovskite (CsPbX3, X = Cl, Br, I) is a promising material for developing novel electronic and optoelectronic devices. Despite the substantial progress that has been made in the development of large perovskite single crystals, the fabrication of high‐quality 2D perovskite single‐crystal films, especially perovskite with a low symmetry, still remains a challenge. Herein, large‐scale orthorhombic CsPbBr3 single‐crystal thin films on zinc‐blende ZnSe crystals are synthesized via vapor‐phase epitaxy. Structural characterizations reveal a “CsPbBr3(110)//ZnSe(100), CsPbBr3[−110]//ZnSe[001] and CsPbBr3[001]//ZnSe[010]” heteroepitaxial relationship between the covering CsPbBr3 layer and the ZnSe growth substrate. It is exciting that the epitaxial film presents an in‐plane anisotropic absorption property from 350 to 535 nm and polarization‐dependent photoluminescence. Photodetectors based on the epitaxial film exhibit a high photoresponsivity of 200 A W−1, a large on/off current ratio exceeding 104, a fast photoresponse time of about 20 ms, and good repeatability at room temperature. Importantly, a strong polarization‐dependent photoresponse is also found on the device fabricated using the epitaxial CsPbBr3 film, making the orthorhombic perovskite promising building blocks for optoelectronic devices featured with anisotropy.
Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion
Authors: Pandey Richa , Vats Gaurav , Yun Jae , Bowen Chris R. , Ho‐Baillie Anita W. Y. , Seidel Jan , Butler Keith Tobias , Seok Sang Il 
Published: August 2019

AbstractAn insight into the analogies, state‐of‐the‐art technologies, concepts, and prospects under the umbrella of perovskite materials (both inorganic–organic hybrid halide perovskites and ferroelectric perovskites) for future multifunctional energy conversion and storage devices is provided. Often, these are considered entirely different branches of research; however, considering them simultaneously and holistically can provide several new opportunities. Recent advancements have highlighted the potential of hybrid perovskites for high‐efficiency solar cells. The intrinsic polar properties of these materials, including the potential for ferroelectricity, provide additional possibilities for simultaneously exploiting several energy conversion mechanisms such as the piezoelectric, pyroelectric, and thermoelectric effect and electrical energy storage. The presence of these phenomena can support the performance of perovskite solar cells. The energy conversion using these effects (piezo‐, pyro‐, and thermoelectric effect) can also be enhanced by a change in the light intensity. Thus, there lies a range of possibilities for tuning the structural, electronic, optical, and magnetic properties of perovskites to simultaneously harvest energy using more than one mechanism to realize an improved efficiency. This requires a basic understanding of concepts, mechanisms, corresponding material properties, and the underlying physics involved with these effects.
Topotactic Phase Transition Driving Memristive Behavior
Authors: Nallagatla Venkata R. , Heisig Thomas , Baeumer Christoph , Feyer Vitaliy , Jugovac Matteo , Zamborlini Giovanni , Schneider Claus M. , Waser Rainer , Kim Miyoung , Jung Chang Uk , Dittmann Regina 
Published: August 2019

AbstractRedox‐based memristive devices are one of the most attractive candidates for future nonvolatile memory applications and neuromorphic circuits, and their performance is determined by redox processes and the corresponding oxygen‐ion dynamics. In this regard, brownmillerite SrFeO2.5 has been recently introduced as a novel material platform due to its exceptional oxygen‐ion transport properties for resistive‐switching memory devices. However, the underlying redox processes that give rise to resistive switching remain poorly understood. By using X‐ray absorption spectromicroscopy, it is demonstrated that the reversible redox‐based topotactic phase transition between the insulating brownmillerite phase, SrFeO2.5, and the conductive perovskite phase, SrFeO3, gives rise to the resistive‐switching properties of SrFeOx memristive devices. Furthermore, it is found that the electric‐field‐induced phase transition spreads over a large area in (001) oriented SrFeO2.5 devices, where oxygen vacancy channels are ordered along the in‐plane direction of the device. In contrast, (111)‐grown SrFeO2.5 devices with out‐of‐plane oriented oxygen vacancy channels, reaching from the bottom to the top electrode, show a localized phase transition. These findings provide detailed insight into the resistive‐switching mechanism in SrFeOx‐based memristive devices within the framework of metal–insulator topotactic phase transitions.
Synergistic Catalysis over Iron‐Nitrogen Sites Anchored with Cobalt Phthalocyanine for Efficient CO2 Electroreduction
Authors: Lin Long , Li Haobo , Yan Chengcheng , Li Hefei , Si Rui , Li Mingrun , Xiao Jianping , Wang Guoxiong , Bao Xinhe 
Published: August 2019

AbstractSimultaneously achieving high Faradaic efficiency, current density, and stability at low overpotentials is essential for industrial applications of electrochemical CO2 reduction reaction (CO2RR). However, great challenges still remain in this catalytic process. Herein, a synergistic catalysis strategy is presented to improve CO2RR performance by anchoring Fe‐N sites with cobalt phthalocyanine (denoted as CoPc©Fe‐N‐C). The potential window of CO Faradaic efficiency above 90% is significantly broadened from 0.18 V over Fe‐N‐C alone to 0.71 V over CoPc©Fe‐N‐C while the onset potential of CO2RR over both catalysts is as low as −0.13 V versus reversible hydrogen electrode. What is more, the maximum CO current density is increased ten times with significantly enhanced stability. Density functional theory calculations suggest that anchored cobalt phthalocyanine promotes the CO desorption and suppresses the competitive hydrogen evolution reaction over Fe‐N sites, while the *COOH formation remains almost unchanged, thus demonstrating unprecedented synergistic effect toward CO2RR.
Transparent, High‐Thermal‐Conductivity Ultradrawn Polyethylene/Graphene Nanocomposite Films
Authors: Pan Xinglong , Shen Lihua , Schenning Albertus P. H. J. , Bastiaansen Cees W. M. 
Published: August 2019

AbstractTransparent, ultradrawn, ultrahigh molecular weight polyethylene (UHMWPE)/graphene nanocomposite films with a high thermal conductivity are successfully fabricated by solution‐casting and solid‐state drawing. It is found that the low optical transmittance (<75%) of the ultradrawn UHMWPE/graphene composite films is drastically improved (>90%) by adding 2‐(2H‐benzontriazol‐2‐yl)‐4,6‐ditertpentylphenol (BZT) as a second additive. This high transmission is interpreted in terms of a reduced void content in the composite films and the improved dispersion of graphene both of which decrease light scattering. The high thermal conductivity is attributed to the π–π interaction between BZT and graphene. In addition, a high specific thermal conductivity of ≈75 W m−1 K−1 ρ−1 of the ultradrawn UHMWPE/graphene/BZT composite films is obtained, which is higher than most metals and polymer nanocomposite. These transparent films are potentially excellent candidates for thermal management in various applications due to a combination of low density, ease of processing, and high thermal conductivity.
A Facile Synthesis of Water‐Resistant CsPbBr3 Perovskite Quantum Dots Loaded Poly(methyl methacrylate) Composite Microspheres Based on In Situ Polymerization
Authors: Cai Yuting , Li Ye , Wang Le , Xie Rong‐Jun 
Published: August 2019

AbstractIn this paper, a facile synthesis of water‐resistant CsPbBr3 perovskite quantum dots (PQDs) loaded poly(methyl methacrylate) (PMMA) composite microspheres (CsPbBr3@PMMA) is reported. The method is based on the precipitation polymerization of methyl methacrylate in hexane in the presence of CsPbBr3 PQDs and stabilizer. The CsPbBr3@PMMA microspheres show a tunable size and a narrow size distribution, with the CsPbBr3 PQDs being uniformly dispersed in the PMMA microspheres. The effective incorporation of PQDs is attributed to the strong coordination interactions between Pb ions on the surface of PQDs and carbonyl groups (CO) from PMMA. Based on this mechanism, multicolor composite microspheres can be easily prepared through absorbing CsPbX3 (X = Cl, Br, I) PQDs into blank PMMA microspheres. Protected by the PMMA microspheres, the imbedded CsPbBr3 PQDs show improved water resistance and storage stability. Further, a wide‐color‐gamut (129%) white light‐emitting diode (LED) is demonstrated by combining the green‐emitting CsPbBr3@PMMA composite microspheres and red‐emitting K2SiF6: Mn4+ with a blue LED, which enables to be used as backlights for liquid crystal displays.
Solution Processed AlInO/In2O3 Heterostructure Channel Thin Film Transistor with Enhanced Performance
Authors: Liu Ling , Chen Shujian , Liang Xiaoci , Pei Yanli 
Published: August 2019

AbstractThin film transistors (TFTs) with solution processed AlInO/In2O3 heterostructure channels are demonstrated with enhanced performance. TFTs with single AlInO channels with various Al concentrations are used for comparison. Appropriate concentrations of Al in AlInO single layer can slightly improve the TFT performance. For the AlInO layer with Al concentration higher than 20%, the resistance is so large that no typical transfer characteristics are observed. In contrast, the overall performances are greatly improved using the AlInO/In2O3 heterostructure channel. High field effect mobility is achieved greater than 40 cm2 V−1 s−1 with a sub threshold slope of 0.7 V decade−1 and on/off ratio of 107 from the heterostructure TFT with a AlInO (30%) top layer. The mobility is affected by the tunnel contact series resistance, which can be modulated by the thickness of the AlInO layer. The enhanced field effect mobility is attributed to the formation of 2D electron gas confined at the AlInO/In2O3 interface, which results in a bulk accumulation effect. Finally, improved positive bias stress stability is obtained by inducing the AlInO top layer with a strong AlO bond. The as investigated results show a very promising future for oxide thin film transistor performance enhancements via heterostructure engineering.
Antibiotic prophylaxis in anterior skull‐base surgery: a survey of the North American Skull Base Society
Authors: Fang Christina H. , Hawn Vivian S. , Agarwal Vijay , Moskowitz Howard S. , Kshettry Varun R. , McKean Erin L. , Bellile Emily , Akbar Nadeem A. , Abuzeid Waleed M. 
Published: August 2019

BackgroundThere is a paucity of data evaluating antibiotic use in anterior skull‐base surgery (ASBS). The goal of this study was to determine antibiotic prescribing patterns and factors that influence antibiotic use in ASBS.MethodsAn online‐based survey was distributed to the membership of the North American Skull Base Society in 2018. Outcomes included practitioner preference regarding intraoperative and postoperative antibiotic use, practice location and environment, surgeon experience, and patient factors influencing antibiotic use.ResultsThere were 208 respondents (25.6% response rate) of which 182 (87.5%) performed ASBS; 60.4% were in academic institutions. Respondents were neurosurgeons (59.3%) or otolaryngologists (40.7%), and 75.3% were fellowship‐trained in ASBS. Most surgeons (95.0%) gave intraoperative antibiotics. Academic surgeons were 4 times more likely to prescribe intraoperative antibiotics than private practitioners (odds ratio [OR] 3.98; 95% confidence interval [CI], 1.53 to 10.36; p = 0.005). Among surgeons who did not routinely prescribe intraoperative antibiotics, regression analysis indicated that the presence of actively infected sinuses, transplantation, diabetes, human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS), and pulmonary disease influenced decision‐making (p < 0.03). Postoperative antibiotics were prescribed by 73.6% of respondents. European surgeons were 3 times less likely to prescribe postoperative antibiotics (OR 0.34; 95% CI, 0.15 to 0.80; p = 0.01). Regression modeling indicated that HIV/AIDS, cystic fibrosis, diabetes, transplantation, and pulmonary disease, as well as the use of absorbable packing influenced the decision to use postoperative antibiotics (p < 0.003).ConclusionThis study demonstrates the significant variation in intra‐ and postoperative antibiotic use among surgeons performing ASBS. Prospective randomized studies are necessary to establish evidence‐based practice guidelines for perioperative antibiotic use in ASBS.
Longitudinal progression of aspirin‐exacerbated respiratory disease: analysis of a national insurance claims database
Authors: Roland Lauren T. , Wang Heqiong , Mehta C. Christina , Cahill Katherine N. , Laidlaw Tanya M. , DelGaudio John M. , Wise Sarah K. , Levy Joshua M. 
Published: August 2019

BackgroundAspirin‐exacerbated respiratory disease (AERD) is a recalcitrant inflammatory disorder defined by asthma, nasal polyposis, and sensitivity to cyclooxygenase‐1 inhibitors. The timeline and course of disease progression is unclear.MethodsThe Truven MarketScan Database, a large American health insurance claims repository, was queried to identify patients meeting criteria for AERD from 2009 to 2015. Included patients had associated International Classification of Diseases, 9th edition (ICD‐9) codes consistent with all 3 components of AERD: asthma, nasal polyposis, and drug allergy. Patterns of disease onset and time to progression were analyzed.ResultsA total of 5628 patients were identified for study inclusion. Of the 3 components of AERD, 3303 patients (59%) were initially diagnosed with asthma, 1408 (25%) were initially diagnosed with nasal polyps, and 917 (16%) were first diagnosed with drug sensitivity. The most common (36%) sequence of diagnoses was asthma, followed by nasal polyps, followed by drug allergy. The median interval between diagnosis of upper or lower airway involvement (ie, nasal polyps and/or asthma) to recognition of drug sensitivity was 259 days (quartiles Q1 to Q3: 92 to 603 days). In patients with both asthma and nasal polyps diagnoses, the risk of developing drug sensitivity during the study time period was 6%.ConclusionUpper and lower airway disease is often initially recognized in patients with AERD, whereas drug sensitivity presents month to years later. This delay may be due to the pathophysiology of AERD and disease progression or due to practice patterns in diagnostic testing and coding. Further work is warranted to identify these patients at early stages in their disease progression.
Quasi‐Freestanding Graphene on SiC(0001) by Ar‐Mediated Intercalation of Antimony: A Route Toward Intercalation of High‐Vapor‐Pressure Elements
Authors: Wolff Susanne , Roscher Sarah , Timmermann Felix , Daniel Marcus V. , Speck Florian , Wanke Martina , Albrecht Manfred , Seyller Thomas 
Published: August 2019

AbstractA novel strategy for the intercalation of antimony (Sb) under the ° reconstruction, also known as buffer layer, on SiC(0001) is reported. Using X‐ray photoelectron spectroscopy, low‐energy electron diffraction, and angle‐resolved photoelectron spectroscopy, it is demonstrated that, while the intercalation of the volatile Sb is not possible by annealing the Sb‐coated buffer layer in ultrahigh vacuum, it can be achieved by annealing the sample in an atmosphere of Ar, which suppresses Sb desorption. The intercalation leads to a decoupling of the buffer layer from the SiC(0001) surface and the formation of quasi‐freestanding graphene. The intercalation process paves the way for future studies of the formation of quasi‐freestanding graphene by intercalation of high‐vapor‐pressure elements, which are not accessible by previously known intercalation techniques, and thus provides new avenues for the manipulation of epitaxial graphene on SiC.
Suzuki–Miyaura Coupling of (Hetero)Aryl Sulfones: Complementary Reactivity Enables Iterative Polyaryl Synthesis
Authors: Chatelain Paul , Sau Abhijit , Rowley Christopher N. , Moran Joseph 
Published: August 2019

AbstractIdeal organic syntheses involve the rapid construction of C−C bonds, with minimal use of functional group interconversions. The Suzuki–Miyaura cross‐coupling (SMC) is a powerful way to form biaryl linkages, but the relatively similar reactivity of electrophilic partners makes iterative syntheses involving more than two sequential coupling events difficult to achieve without additional manipulations. Here we introduce (hetero)aryl sulfones as electrophilic coupling partners for the SMC reaction, which display an intermediate reactivity between those of typical aryl (pseudo)halides and nitroarenes. The new complementary reactivity allows for rapid sequential cross‐coupling of arenes bearing chloride, sulfone and nitro leaving groups, affording non‐symmetric ter‐ and quateraryls in only 2 or 3 steps, respectively. The SMC reactivity of (hetero)aryl sulfones is demonstrated in over 30 examples. Mechanistic experiments and DFT calculations are consistent with oxidative addition into the sulfone C−S bond as the turnover‐limiting step. The further development of electrophilic cross‐coupling partners with complementary reactivity may open new possibilities for divergent iterative synthesis starting from small pools of polyfunctionalized arenes.
C=O‐Bindungsspaltung in Kohlendioxid durch einen Eisen(0)‐Phosphininkomplex
Authors: Leitl Julia , Marquardt Michael , Coburger Peter , Scott Daniel J. , Streitferdt Verena , Gschwind Ruth M. , Müller Christian , Wolf Robert 
Published: August 2019

AbstractNeue Eisenkomplexe [Cp*FeL]− (1‐σ und 1‐π, Cp*=C5Me5) mit dem chelatisierenden Phosphininliganden 2‐(2′‐pyridyl)‐4,6‐diphenylphosphinin (L) wurden dargestellt und ihre Reaktion mit Kohlendioxid untersucht. Die Umsetzung mit CO2 verläuft abhängig vom Koordinationsmodus von L in unterschiedlicher Weise. Mit dem Isomer 1‐π, das eine η4‐Koordination am Eisenatom aufweist, wird die elektrophile Addition an den Phosphininliganden unter Bildung des Komplexes 3‐π beobachtet. Im Gegensatz hierzu reagiert das zweite Isomer 1‐σ, in dem L als σ‐koordinierter [P,N]‐Ligand vorliegt, zum C=O‐Bindungsspaltungsprodukt 3‐σ. Eine solche CO2‐Spaltung wurde für späte 3d‐Übergangsmetalle bisher sehr selten beobachtet, und wir berichten hier über das erste Beispiel mit einem einzelnen Eisenzentrum.