bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exposer / s’exposer : les bibliothèques narratrices des voix inaudibles
Authors: Bats Raphaëlle 
Published: May 2020

Plusieurs projets participatifs, comme les bibliothèques vivantes ou la collecte de la mémoire locale, sont des occasions pour la bibliothèque de porter la voix des plus invisibles et des plus inaudibles de nos concitoyens, et de donner de l’écho à leurs mots et récits. Or, longtemps lieux de silence, lieux de préparation aux débats démocratiques plutôt que lieux de débats, les bibliothèques n’avaient pas à prendre en compte la possibilité pour les individus de pouvoir prendre la parole. Or, les réticences à prendre la parole sont nombreuses et il ne pourra suffire de tendre le micro pour que la parole fuse. La prise de parole ne relève pas simplement d’une volonté de s’exprimer et d’une liberté de le faire.Il convient dès lors de se demander si ces projets parviennent, dans leurs formes variées, à donner la parole aux plus inaudibles, à rendre leurs récits audibles par tous et à amorcer le travail de reconnaissance attendu, ou s’ils n’en donnent que l’illusion, renforçant par-là la méfiance des usagers envers les appels à leur participation et engagement. C’est à cette méprise sur les intentions et les effets des projets visant à faire prendre la parole aux usagers en bibliothèque que cet article veut répondre, en observant et analysant les enjeux d’outils mis en oeuvre par des bibliothécaires dans de telles situations. En analysant la spécificité de ces outils, nous montrerons que la bibliothèque, en les utilisant, si elle est loin de résoudre la difficulté initiale, offre cependant aux inaudibles des temps de réappropriation de leur propre parole, premiers pas pour pouvoir être entendus, et retrouver place dans la société et participer à sa transformation.
Breaking the Linguistic Minority Complex through Creative Writing and Self-Translation
Authors: Dagnino Arianna 
Published: May 2020

Generally speaking, a minority language is “one spoken by less than 50 percent of a population in a given region, state or country” (Grenoble and Singerman, 2017, n.p.). In this article, I propose a more contextualized definition that applies to the realm of literary writing and (self-)translation. Thus, I define a minority language as any language which a bilingual or plurilingual writer perceives as not being the dominant one in the sociocultural and linguistic context in which s/he is active as an author or as a (self-)translator. Assuming this alternative definition as a point of departure, I discuss the creative and self-translational practice of the Canadian writer Antonio D’Alfonso. D’Alfonso is one of those rare plurilingual writers who feel linguistically defamiliarized, claiming that instead of having a proper mother tongue he has a mixed baggage of native Molisano dialect, French, English and Italian. Thus, he tends to write, think and (self-)translate immersed in a kind of 3D- (or even 4D-) linguistic landscape (Pivato, 2002). D’Alfonso’s self-translations from French into English and/or vice versa are testimony to the author’s experimental way of challenging the “crude subjugation” (Whyte, 2002, p. 69) of a language over another and of overcoming any minority-language complex he might have developed on his path to becoming a linguistically uprooted writer.
Characterization of biofilm production in different strains of Acinetobacter baumannii and the effects of chemical compounds on biofilm formation
Authors: Lin Ming-Feng , Lin Yun-You , Lan Chung-Yu 
Published: May 2020

Acinetobacter baumannii, an important emerging pathogen of nosocomial infections, is known for its ability to form biofilms. Biofilm formation increases the survival rate of A. baumannii on dry surfaces and may contribute to its persistence in the hospital environment, which increases the probability of nosocomial infections and outbreaks. This study was undertaken to characterize the biofilm production of different strains of A. baumannii and the effects of chemical compounds, especially antibiotics, on biofilm formation. In this study, no statistically significant relationship was observed between the ability to form a biofilm and the antimicrobial susceptibility of the A. baumannii clinical isolates. Biofilm formation caused by A. baumannii ATCC 17978 after gene knockout of two-component regulatory system gene baeR, efflux pump genes emrA/emrB and outer membrane coding gene ompA revealed that all mutant strains had less biofilm formation than the wild-type strain, which was further supported by the images from scanning electron microscopy and confocal laser scanning microscopy. The addition of amikacin, colistin, LL-37 or tannic acid decreased the biofilm formation ability of A. baumannii. In contrast, the addition of lower subinhibitory concentration tigecycline increased the biofilm formation ability of A. baumannii. Minimum biofilm eradication concentrations of amikacin, imipenem, colistin, and tigecycline were increased obviously for both wild type and multidrug resistant clinical strain A. baumannii VGH2. In conclusion, the biofilm formation ability of A. baumannii varied in different strains, involved many genes and could be influenced by many chemical compounds.
Development and initial validation of the Psychological Need Frustration Scale for Physical Activity
Authors: Chung Pak-Kwong , Zhong Tao , Liu Jing-Dong , Zhang Chun-Qing , Wong Ming Yu Claudia 
Published: May 2020

BackgroundThe frustration of basic psychological needs can be detrimental to people’s health. To date, a scale developed specifically for measuring such perceived negative experiences, derived from a need thwarting environment in the physical activity context, is lacking. The present research attempted to develop and validate the Psychological Need Frustration Scale for Physical Activity (PNFS-PA) grounded in self-determination theory via multiple studies.MethodIn Study 1, an item pool was created, and its face and content validity were established. In Study 2, the factor structure of the scale was demonstrated using exploratory structural equation modelling (ESEM). In Study 3, its factor structure was cross-validated. Also, the nomological validity, reliability and measurement invariance of the scale were established.ResultTaken together, the research suggests the newly developed PNFS-PA is valid and reliable and can be applied to assess psychological needs frustration experiences in the physical activity context.
Modifiable Lifestyle Factors Associated With Response to Treatment in Early Rheumatoid Arthritis
Authors: Brown Zoe , Metcalf Robert , Bednarz Jana , Spargo Llewellyn , Lee Anita , Hill Catherine , Wechalekar Mihir , Stavrou Christiana , James Michael , Cleland Les , Proudman Susanna 
Published: May 2020

ObjectiveWe aimed to evaluate the associations between response to algorithm‐directed treat‐to‐target conventional synthetic disease‐modifying antirheumatic drug therapy and potentially modifiable lifestyle factors, including dietary fish oil supplementation, body mass index (BMI), and smoking history in a rheumatoid arthritis (RA) inception cohort.MethodsPatients with RA with a duration of less than 12 months were reviewed every 3 to 6 weeks to adjust therapy according to disease response. All patients received advice to take fish oil supplements, and omega‐3 status was measured as plasma levels of eicosapentaenoic acid (EPA). Lifestyle factors and other variables potentially prognostic for 28‐joint Disease Activity Score (DAS28) remission and DAS28 low disease activity (LDA) at the 12‐month visit were included in multivariable logistic regression models.ResultsOf 300 participants, 57.7% reached DAS28 LDA, and 43.7% were in DAS28 remission at 1 year. Increase in plasma EPA was associated with an increase in the odds of being in LDA (adjusted odds ratio [OR] = 1.27; P < 0.0001) and remission (adjusted OR = 1.21; P < 0.001). There was some evidence that the effect of BMI on LDA might be modified by smoking history. An increase in BMI was associated with a decrease in the odds of being in LDA in current and former smokers but had no impact on LDA in patients who had never smoked. There were no meaningful associations between BMI or smoking history and remission.ConclusionOmega‐3 status, BMI, and smoking history are potential predictors of outcome in early RA. The possibility of an effect modification by smoking on the predictive value of BMI merits further investigation.
Synchronization of heterogeneous multiagent systems: A distributed observer and compensation framework
Authors: Wang Bohui , Zhao Yu , Zhang Langwen 
Published: May 2020

AbstractThis article proposes a distributed observer and compensation framework to address the synchronization problem of heterogeneous multiagent systems under directed communication and dynamic jointly connected topology scenarios. Different from the previous results, the synchronization problem is solved in our framework which neither relies on the solution of regulator equations which can be regarded as a high gain and usually calculated by a forced equivalence principle, nor assumes the global connectivity condition for all the agents to obtain a bounded synchronization error level. To do this, first, we introduce a dual design principle, where a stabilization condition with an appropriate coupling strength for the synchronization algorithm is proposed. Within this framework, a class of synchronization dynamics called synchronization distributed observers and tracking controller named control protocol are designed. While the synchronization behaviors can be achieved between synchronization distributed observers and control protocol, all the agents will synchronize to their leader in a situation where the system dynamics of the leader can be acquired in advance by all individuals. Finally, simulations of heterogeneous single‐link manipulators are presented to show the effectiveness of our approach.
Ionically Generated Built‐In Equilibrium Space Charge Zones—a Paradigm Change for Lead Halide Perovskite Interfaces
Authors: Kim Gee Yeong , Senocrate Alessandro , Moia Davide , Maier Joachim 
Published: May 2020

AbstractMethylammonium lead iodide (MAPI) is the archetype of the intensively researched class of perovskites for photovoltaics. Nonetheless, even equilibrium aspects are far from being fully understood. Equilibrium space charge effects at the MAPI/TiO2 and MAPI/Al2O3 interfaces are discussed, which are of paramount significance for solar cells. Different from the photovoltaic literature in which such built‐in potentials are considered as being generated solely by electronic charge carriers, a generalized picture that considers the equilibrium distribution of both ionic and electronic carriers is applied. Experimental evidence is given that shows it is the ions that are responsible for the equilibrium space charge potential, the reason being a pronounced ion adsorption at the contacts. The electronic redistribution is a sheer consequence of the so‐established electric field. Experiments with mesoporous oxide as well as experiments with MAPbBr3 (MAPBr) indicate photovoltaic relevance and material generality in terms of the choice of the lead‐based perovskite. The occurrence of space charge effects at heterojunctions generated by ionic redistribution is not only a novel concept in photovoltaics, it also provides a new path to modifying charge‐selective interfaces, as well as a better understanding of the behavior in mesoporous systems.
Thermoelectric Paper: Graphite Pencil Traces on Paper to Fabricate a Thermoelectric Generator
Authors: Mulla Rafiq , Jones Daniel R. , Dunnill Charles W. 
Published: May 2020

AbstractPaper‐based thermoelectric generators are a promising and economical alternative to expensive organic conductors that are normally preferred for flexible generators. In the present work, graphite pencil traces on regular Xerox paper are successfully employed to constitute a thermoelectric generator. In conjunction with polyethylenimine polymer, the graphite traces act as both the p‐type and n‐type thermoelectric “legs,” of a graphite‐based thermoelectric generator. The fabrication method is facile and requires no conducting paste or silver paste to connect individual thermoelectric legs. A test module containing five pairs of p‐n legs is fabricated on paper to test its performance. The device produces a thermoelectric voltage of 9.2 mV, generating an output power of 1.75 nW at a temperature difference of ≈60 K. The present work demonstrates that ordinary pencil on paper may be used as the foundation for a cheap, flexible, easily disposable, and environmentally friendly thermoelectric generator.
A combination of morphological and photosynthetic functional traits maintains the vertical distribution of bryophytes in a subtropical cloud forest
Authors: Fan Xiao-Yang , Liu Wen-Yao , Song Liang , Liu Shuai , Shi Xian-Meng , Yuan Guo-Di 
Published: May 2020

PremiseThe distribution and performance of bryophyte species vary with vertical gradients, as a result of changes in environmental factors, especially light. However, the morphological and physiological drivers of bryophyte distribution along forest vertical gradients are poorly understood.MethodsFor 18 species of mosses and liverworts distributed among three vertical microhabitats (ground, tree trunk, and branch, variance in 28 morphological and photosynthetic functional traits was comparatively analyzed among the microhabitats and bryophyte life‐forms in a subtropical cloud forest in Ailao Mountain, Yunnan, southwestern China. Principal component analysis (PCA) was used to summarize trait differences among bryophyte species.ResultsIn contrast to trunk and ground dwellers, branch dwellers tended to reduce light interception (smaller leaf and cell sizes, lower chlorophyll content), protect against damage from intense irradiation (higher ratios of carotenoids to chlorophyll), raise light energy use (higher photosynthetic capacity), and cope with lower environmental moisture (pendant life‐forms, thicker cell walls). The PCA showed that ecological strategies of bryophytes in response to levels of irradiation were specialized in branch dwellers, although those of ground and trunk dwellers were less distinct.ConclusionsEnvironmental filtering shaped the combination of functional traits and the spatial distribution of bryophytes along the vertical gradients. Bryophyte species from the upper canopy of cloud forests show narrow variation in functional traits in high‐light intensity, whereas species in the lower vertical strata associated with low‐light intensity used contrasting, but more diverse ecological strategies.
A Cationic Oligomer as an Organic Template for Direct Synthesis of Aluminosilicate ITH Zeolite
Authors: Lei Chi , Dong Zhuoya , Martínez Cristina , Martínez‐Triguero Joaquín , Chen Wei , Wu Qinming , Meng Xiangju , Parvulescu Andrei‐Nicolae , De Baerdemaeker Trees , Müller Ulrich , Zheng Anmin , Ma Yanhang , Zhang Weiping , Yokoi Toshiyuki , Marler Bernd , De Vos Dirk E. , Kolb Ute , Corma Avelino , Xiao Feng‐Shou 
Published: May 2020

AbstractThere are a large number of zeolites, such as ITH, that cannot be prepared in the aluminosilicate form. Now, the successful synthesis of aluminosilicate ITH zeolite using a simple cationic oligomer as an organic template is presented. Key to the success is that the cationic oligomer has a strong complexation ability with aluminum species combined with a structural directing ability for the ITH structure similar to that of the conventional organic template. The aluminosilicate ITH zeolite has very high crystallinity, nanosheet‐like crystal morphology, large surface area, fully four‐coordinated Al species, and abundant acidic sites. Methanol‐to‐propylene (MTP) tests reveal that the Al‐ITH zeolite shows much higher selectivity for propylene and longer lifetime than commercial ZSM‐5. FCC tests show that Al‐ITH zeolite is a good candidate as a shape‐selective FCC additive for enhancing propylene and butylene selectivity.
Überwindung der intrinsischen Reaktivität bei aliphatischer C‐H‐Oxidation: Bevorzugte C3/C4‐Oxidation von aliphatischen Ammoniumsubstraten
Authors: Knezevic Melina , Heilmann Michael , Piccini Giovanni Maria , Tiefenbacher Konrad 
Published: May 2020

AbstractDie positionsselektive C‐H‐Oxidation von nicht aktivierten Stellen in aliphatischen Ammoniumketten stellt eine enorme synthetische Herausforderung dar, für welche bisher keine Lösung gefunden wurde. Wir berichten hier über die bevorzugte Oxidation der stark deaktivierten C3/C4‐Positionen von aliphatischen Ammoniumsubstraten durch den Einsatz eines neuen supramolekularen Katalysators. Dieser chimäre Katalysator wurde durch die Verknüpfung der gut erforschten katalytischen Fe(pdp)‐Einheit an eine Alkylammonium bindende Pinzette hergestellt. Die Ergebnisse verdeutlichen das enorme Potenzial, die intrinsische Reaktivität in chemischen Reaktionen zu überwinden, indem die Katalyse mithilfe supramolekularer Wirtstrukturen, welche eine exakte Orientierung der Substrate ermöglichen, gesteuert wird.
Synthese und Charakterisierung des höchst instabilen metalloiden Clusters Ag64(PnBu3)16Cl6
Authors: Diecke Maximilian , Schrenk Claudio , Schnepf Andreas 
Published: May 2020

AbstractDie Reduktion von (nBu3P)AgCl mit LiBH(sBu)3 in Toluol führt zur Bildung des metalloiden Silberclusters Ag64(PnBu3)16Cl6 (1) in Form dunkelroter, wärme‐ und lichtempfindlicher Kristalle in hohen Ausbeuten. 1 ist der größte strukturell charakterisierte metalloide Silbercluster, der nur Chlor‐ und Phosphansubstituenten aufweist. Die Silberatome in 1 sind quaderförmig angeordnet, wobei Ähnlichkeiten zu den dichtesten Kugelpackungen (fcc und hcp) auftreten. In 1 ist ein Schalenabschluss mit 58 Elektronen realisiert. Die Lichtempfindlichkeit macht 1 zu einer Modellverbindung der ersten Schritte des Fotoprozesses. Durch diese Empfindlichkeit im Zusammenspiel mit hohen Ausbeuten ist 1 ein gutes Ausgangsmaterial für weitere Untersuchungen für Silberbeschichtungen.
Tackling N‐Alkyl Imines with 3d Metal Catalysis: Highly Enantioselective Iron‐Catalyzed Synthesis of α‐Chiral Amines
Authors: Blasius Clemens K. , Heinrich Niklas F. , Vasilenko Vladislav , Gade Lutz H. 
Published: May 2020

AbstractA readily activated iron alkyl precatalyst effectively catalyzes the highly enantioselective hydroboration of N‐alkyl imines. Employing a chiral bis(oxazolinylmethylidene)isoindoline pincer ligand, the asymmetric reduction of various acyclic N‐alkyl imines provided the corresponding α‐chiral amines in excellent yields and with up to >99 % ee. The applicability of this base metal catalytic system was further demonstrated with the synthesis of the pharmaceuticals Fendiline and Tecalcet.
Three‐Step Spin State Transition and Hysteretic Proton Transfer in the Crystal of an Iron(II) Hydrazone Complex
Authors: Nakanishi Takumi , Hori Yuta , Wu Shuqi , Sato Hiroyasu , Okazawa Atsushi , Kojima Norimichi , Horie Yusuke , Okajima Hajime , Sakamoto Akira , Shiota Yoshihito , Yoshizawa Kazunari , Sato Osamu 
Published: May 2020

AbstractA proton–electron coupling system, exhibiting unique bistability or multistability of the protonated state, is an attractive target for developing new switchable materials based on proton dynamics. Herein, we present an iron(II) hydrazone crystalline compound, which displays the stepwise transition and bistability of proton transfer at the crystal level. These phenomena are realized through the coupling with spin transition. Although the multi‐step transition with hysteresis has been observed in various systems, the corresponding behavior of proton transfer has not been reported in crystalline systems; thus, the described iron(II) complex is the first example. Furthermore, because proton transfer occurs only in one of the two ligands and π electrons redistribute in it, the dipole moment of the iron(II) complexes changes with the proton transfer, wherein the total dipole moment in the crystal was canceled out owing to the antiferroelectric‐like arrangement.
Synthesis and Characterization of the Highly Unstable Metalloid Cluster Ag64(PnBu3)16Cl6
Authors: Diecke Maximilian , Schrenk Claudio , Schnepf Andreas 
Published: May 2020

AbstractThe reduction of (nBu3P)AgCl with LiBH(sBu)3 in toluene gives the metalloid silver cluster Ag64(PnBu3)16Cl6 (1) as dark red, temperature‐ and light‐sensitive single crystals in high yield. 1 is the largest structurally characterized metalloid silver cluster exhibiting chlorine and phosphine substituents only. The silver atoms in 1 show an overall brick‐shape arrangement, where structural resemblance to the close‐packed fcc and hcp structures is realized. Within 1 a 58 electron closed shell system is present. The light sensitivity renders 1 as a model compound for the primary seeds of the photo process, whereby this sensitivity, together with the high‐yield synthesis show that 1 is a perfect starting compound for further investigations like silver‐plating processes.
Novel benzo[b]xanthene derivatives: Bismuth(III) triflate‐catalyzed one‐pot synthesis, characterization, and acetylcholinesterase, glutathione S‐transferase, and butyrylcholinesterase inhibitory properties
Authors: Turhan Kadir , Pektaş Begüm , Türkan Fikret , Tuğcu Fatma T. , Turgut Zuhal , Taslimi Parham , Karaman Halide S. , Gulcin Ilhami 
Published: May 2020

AbstractIn this study, 3,4‐dihydro‐12‐aryl‐1H‐benzo[b]xanthene‐1,6,11‐(2H,12H)trione compounds were obtained through one‐pot condensation of various substituted aromatic aldehydes, 2‐hydroxy‐1,4‐naphthoquinone, and dimedone in the presence of Bi(OTf)3 as a green and reusable catalyst. The structural characterization of these novel substituted benzo[b]xanthenes was performed by spectroscopic methods, and their inhibitory actions against butyrylcholinesterase (BChE), acetylcholinesterase (AChE), and glutathione S‐transferase (GST) were investigated. GST is an enzyme responsible for removing toxic molecules during Phase II reactions in the detoxification mechanism. The AChE and BChE enzymes, which are called cholinesterases, are among the enzymes that occur especially during dementia such as brain damage or Alzheimer's disease. Inhibition effects of the benzo[b]xanthene derivatives on AChE, BChE, and GST were found at the millimolar level. The best inhibitor for GST is compound 4a (31.18 ± 6.13 mM), for AChE, it is compound 4d (28.16 ± 3.46 mM), and for BChE, it is compound 4f (36.24 ± 3.19 mM). Compound 4a inhibited the dimerization of GST subunits, and compounds 4d and 4f directly inhibited the catalytic activity by interacting with the catalytic active site or a related site of the AChE and BChE enzymes, respectively.