bluuebunny/crossref_metadata_2025_split huggingface dataset:
(Re)imagining Asian Rulers in Athanasius Kircher’s China Illustrata: The Agency of Interiors
Authors: Freddolini Francesco 
Published: January 2021

Cet article porte sur les portraits gravés de l’empereur moghol Jahangir (reg. 1605–1627) et de l’empereur Kangxi de Chine (reg. 1661–1722), qui figurent dans China Illustrata de Athanasius Kircher, publié en 1677. Par le biais d’une lecture attentive de ces deux images, l’auteur examine comment, plutôt que de représenter précisément ces souverains inconnus, lointains et exotiques, elles réinventent les espaces intérieurs habités par Jahangir et Kangxi en palais royaux fidèles aux normes européennes. Dans ces images, les intérieurs, leur matérialité et leur représentation deviennent des agents de traduction visuelle — des espaces où les figures peuvent s’acquitter de leurs fonctions selon une série de conventions avant tout comprises par le public cible de Kircher : les Européens.
Simulated Domesticities: Settings for Colonial Assimilation in Mid-Twentieth-Century Canada
Authors: Miłosz Magdalena 
Published: January 2021

L’espace domestique est un lieu de rencontre important entre les peuples autochtones et les puissances coloniales. Au Canada comme ailleurs, le remplacement des habitations autochtones par des modèles domestiques coloniaux reflète des structures politiques coloniales de peuplement plus vastes. Après la Seconde Guerre mondiale, le gouvernement canadien a continué d’utiliser la domesticité comme forme d’assimilation. En 1950, lorsque les « Affaires indiennes » ont commencé à relever du ministère de la Citoyenneté et de l’Immigration, les espaces domestiques pour les peuples autochtones ont ainsi été développés par le biais de nouveaux discours d’intégration et de citoyenneté. J’examine trois de ces zones de contact domestiques : les maisons unifamiliales, les salles de classe d’économie domestique et les maisons modèles. En simulant les architectures domestiques colonialistes d’après-guerre, ces espaces démontrent un mimétisme déstabilisé qui constitue une vision de la place accordée aux peuples autochtones dans l’État colonial. Je soutiens donc que l’espace domestique est un site complexe qui rend visible, en termes visuels et spatiaux, le pouvoir colonial de peuplement.
El intertexto genérico en el documental latinoamericano contemporáneo
Authors: Lanza Pablo 
Published: January 2021

En las últimas décadas los estudios sobre el cine documental han hecho hincapié en el progresivo borramiento de las fronteras con la ficción y caracterizaron a las producciones como objetos híbridos. Si bien estas líneas nunca fueron tan rígidas como suele señalarse, es cierto que el alto nivel de estilización se ha convertido en una constante del documental actual. El presente artículo analiza una serie de documentales latinoamericanos producidos en las últimas dos décadas a partir del diálogo que los films establecen con distintos géneros cinematográficos: el cine de terror, la road movie, y el film noir. La apropiación de estructuras narrativas, procedimientos e iconografías de los distintos géneros le proporciona al documental una serie de herramientas claves para la transmisión de historias personales y colectivas.
Valorization of Green Clay from Bouaflé (Ivory Coast) in the Simultaneous Elimination of Organic Pollutants and Metallic Trace Elements by Adsorption: Case of Methylene Blue and Cadmium Ions
Authors: Coulibaly Bintou , Guillaume Pohan Lemeyonouin Aliou , Kambiré Ollo , Kouakou Lébé Prisca Sandrine , Goure-Doubi Hervé , Diabaté Donourou , Ouattara Lassiné 
Published: January 2021

The objective of this work was to valorize the clays of Côte d'Ivoire in the treatment of wastewater. The study focused on the ability of raw clays from Bouaflé city to adsorb methylene blue and cadmium ions, in aqueous solution. The physicochemical characteristics of the clay were determined using the measurement of its specific surface area, chemical analysis and mineralogical analysis. It emerges from these characterizations that clay is essentially composed of type 2/1 minerals such as illite (32.94%), type 1/1 kaolinite (8.47%), quartz (40.23 %) and approximately iron oxy-hydroxides (18.36%). Its specific surface is 37.58 m2 / g. The kinetics, thermodynamics and isotherms of adsorption have been used to understand the mechanism of adsorption. The results obtained show that the organic pollutant alone in solution (methylene blue (MB)) is adsorbed quite quickly. We obtained a decoloration yield greater than 90% after 40 min of adsorbate-adsorbent contact. The elimination of methylene blue is greater in a basic medium. The BM adsorption kinetics were modeled. The comparison of the correlation factors of the different kinetic models used has shown that the adsorption kinetics of the organic pollutant (MB) better match the pseudo second order kinetic model. Thermodynamics predicted a spontaneous endothermic surface reaction, due to the positive sign of and the negative sign of , obtained ( = 31.398; = -12.635). Analysis of adsorption isotherms allowed us to show that the adsorption of methylene blue on clay is physisorption type and in monolayer. The experiments were also performed with an aqueous solution containing both methylene blue and cadmium ions. After a contact time of 120 min, 60% of the cadmium ions are adsorbed on the clay against only 20% of methylene blue. Thus, clay preferentially eliminates trace metal elements (Cd2+) compared to organic pollutants (methylene blue).
Development of Solar Operated Walking Type Power Weeder
Authors: Kachhot A. R. , Dulawat M. S. , Makavana J. M. , Dobariya U. D. , Vadher A. L. 
Published: January 2021

Power weeders are most commonly used machines for removing weeds, to prevent them from competing with main crops. However, these power weeders are power by either petrol or diesel engine. With the shortage of fossil fuel, its unavailability in rural areas and for reducing emission due to burning of fossil fuel, an alternative energy powered weeder is very much required. As solar energy was very available and weeding usually carried out during daytime, hence an attempt made to develop a solar energy operated weeder for dryland. It comprised of a powering system and a blade assembly. The power source included solar photovoltaic panel, solar charge controller, battery, motor charge controller and BLDC motor. The sweep type blade was used, which is mounted behind the main frame and power was given to the rear wheels by 750 watt 48 volt BLDC motor using a chain and sprocket drive. The performance of weeder was evaluated at three different forward speed of S1, S2 and S3 is 1.0 - 1.5, 1.5 - 2.0 and 2.0 – 2.5 km/h respectively. Total weight of weeder is 88 kg and total force required to push the weeder at 2.5 km/h was 107 kg (730 watt). Four batteries, each of size 12 V, 12 amp, powered the motor. Two solar panels were use to charge the battery, each with a power of 150 watts, and it takes 2 h to completely charge the battery while weeder is in steady state. The battery was discharge in 1.3 h in field when solar panel disconnected. With simultaneous charging and discharging of battery, this solar power system could run the weeder for 7.3 h. The developed weeder was teste in groundnut crop having 600 mm row-to-row spacing up to 30 to 40 mm depth with a field capacity of S1, S2 and S3 was 0.042, 0.059 and 0.075 ha/h. The weeding and field efficiency for S1, S2 and S3 were found to be 90.94, 84.69, 83.50% and 79.21, 83.97, 85.68% respectively. The effect of forward speed S1, S2 and S3 on Energy expenditure rate and heart rate was found to be 8.23, 9.27 and 10.34 kJ/min or 94, 98 and 50 bpm respectively. The plant damage increased with increasing forward speed of operation, Hence the developed solar operated walking type power weeder could be used successfully by the a small scale farmer for carrying out weeding operations.
Solvent‐Dependent Adsorption‐Driven Mechanism for MOFs‐Based Yolk–Shell Nanostructures
Authors: Wang Weiwei , Xu Bolong , Pan Xueting , Zhang Junfeng , Liu Huiyu 
Published: January 2021

AbstractMetal‐organic frameworks (MOFs)‐based yolk–shell nanostructures have drawn enormous attention recently due to their multifunctionality. However, the regulations of the size and morphology of yolk–shell nanostructures are still limited by the unclear formation mechanism. Herein, we first demonstrated a solvent‐dependent adsorption‐driven mechanism for synthesizing yolk–shelled MOFs‐based nanostructures coated with mesoporous SiO2 shells (ZIF‐8@mSiO2) with tunable size and morphology. The selective and competitive adsorption of methanol (CH3OH) and water (H2O) on ZIF‐8 core were found to have decisive effects on inducing the morphology evolution of yolk–shell nanostructures. The obtained yolk–shelled ZIF‐8@mSiO2 nanostructures show great promise in generating acoustic cavitation effect for sonodynamic cancer therapy in vitro. We believe that this work will not only help us to design novel MOFs‐based yolk–shell nanostructures, but also promote the widespread application of MOFs materials.
Zugang zu (tBuCP)n‐Gerüsten (n=2, 4) durch P‐C‐Bindungsspaltung von Di‐tert‐butyldiphosphatetrahedran
Authors: Hierlmeier Gabriele , Wolf Robert 
Published: January 2021

AbstractDie ersten gemischten Phosphatetrahedrane wurden erst vor kurzem synthetisiert, und ihre Reaktivität ist weitgehend unbekannt. Hier berichten wir über die Reaktivität von Di‐tert‐butyldiphosphatetrahedran (1), dem Dimer von tert‐Butylphosphaalkin. Mit N‐heterocyclischen Carbenkomplexen von Nickel(I) und Nickel(0) wird die selektive Aktivierung des (tBuCP)2‐Tetraeders beobachtet. Hieraus resultieren neue Verbindungen mit vielfältigen (tBuCP)n‐Gerüsten (n=2, 4). Die Umsetzung eines der Komplexe mit CO‐Gas führt zum Ladderan (tBuCP)4. Des Weiteren kann 1 durch Eliminierung von Di‐tert‐butylacetylen in der Koordinationssphäre von Nickel als Quelle für P2‐Einheiten genutzt werden.
A Universal Approach for Controllable Synthesis of n‐Specific Layered 2D Perovskite Nanoplates
Authors: Lin Jin‐Tai , Chen Deng‐Gao , Wu Cheng‐Ham , Hsu Chia‐Shuo , Chien Chia‐Ying , Chen Hao‐Ming , Chou Pi‐Tai , Chiu Ching‐Wen 
Published: January 2021

Abstract2D perovskites with chemical formula A′2An−1BnX3n+1 have recently attracted considerable attention due to their tunable optical and electronic properties, which can be attained by varying the chemical composition. While high color‐purity emitting perovskite nanomaterials have been accomplished through changing the halide composition, the preparation of single‐phase, specific n‐layer 2D perovskite nanomaterials is still pending because of the fast nucleation process of nanoparticles. We demonstrate a facile, rational and efficacious approach to synthesizing single‐phase 2D perovskite nanoplates with a designated n number for both lead‐ and tin‐based perovskites through kinetic control. Casting carboxylic acid additives in the reaction medium promotes selective formation of the kinetic product—multilayer 2D perovskite—in preference to the single‐layer thermodynamic product. For the n‐specific layered 2D perovskites, decreasing the number of octahedral layers per inorganic sheet leads to an increase of photoluminescence energy, radiative decay rate, and a significant boost in photostability.
Visible‐Light‐Induced 1,3‐Aminopyridylation of [1.1.1]Propellane with N‐Aminopyridinium Salts
Authors: Shin Sanghoon , Lee Seojin , Choi Wonjun , Kim Namhoon , Hong Sungwoo 
Published: January 2021

AbstractThrough the formation of an electron donor–acceptor (EDA) complex, strain‐release aminopyridylation of [1.1.1]propellane with N‐aminopyridinium salts as bifunctional reagents enabled the direct installation of amino and pyridyl groups onto bicyclo[1.1.1]pentane (BCP) frameworks in the absence of an external photocatalyst. The robustness of this method to synthesize 1,3‐aminopyridylated BCPs under mild and metal‐free conditions is highlighted by the late‐stage modification of structurally complex biorelevant molecules. Moreover, the strategy was extended to P‐centered and CF3 radicals for the unprecedented incorporation of such functional groups with pyridine across the BCP core in a three‐component coupling. This practical method lays the foundation for the straightforward construction of new valuable C4‐pyridine‐functionalized BCP chemical entities, thus significantly expanding the range of accessibility of BCP‐type bioisosteres for applications in drug discovery.
A MOF‐based Ultra‐Strong Acetylene Nano‐trap for Highly Efficient C2H2/CO2 Separation
Authors: Niu Zheng , Cui Xili , Pham Tony , Verma Gaurav , Lan Pui Ching , Shan Chuan , Xing Huabin , Forrest Katherine A. , Suepaul Shanelle , Space Brian , Nafady Ayman , Al‐Enizi Abdullah M. , Ma Shengqian 
Published: January 2021

AbstractPorous materials with open metal sites have been investigated to separate various gas mixtures. However, open metal sites show the limitation in the separation of some challenging gas mixtures, such as C2H2/CO2. Herein, we propose a new type of ultra‐strong C2H2 nano‐trap based on multiple binding interactions to efficiently capture C2H2 molecules and separate C2H2/CO2 mixture. The ultra‐strong acetylene nano‐trap shows a benchmark Qst of 79.1 kJ mol−1 for C2H2, a record high pure C2H2 uptake of 2.54 mmol g−1 at 1×10−2 bar, and the highest C2H2/CO2 selectivity (53.6), making it as a new benchmark material for the capture of C2H2 and the separation of C2H2/CO2. The locations of C2H2 molecules within the MOF‐based nanotrap have been visualized by the in situ single‐crystal X‐ray diffraction studies, which also identify the multiple binding sites accountable for the strong interactions with C2H2.
A General Approach for Monolayer Adsorption of High Weight Loadings of Uniform Nanocrystals on Oxide Supports
Authors: Kao Kun‐Che , Yang An‐Chih , Huang Weixin , Zhou Chengshuang , Goodman Emmett D. , Holm Alexander , Frank Curtis W. , Cargnello Matteo 
Published: January 2021

AbstractMonodispersed metal and semiconductor nanocrystals have attracted great attention in fundamental and applied research due to their tunable size, morphology, and well‐defined chemical composition. Utilizing these nanocrystals in a controllable way is highly desirable especially when using them as building blocks for the preparation of nanostructured materials. Their deposition onto oxide materials provide them with wide applicability in many areas, including catalysis. However, so far deposition methods are limited and do not provide control to achieve high particle loadings. This study demonstrates a general approach for the deposition of hydrophobic ligand‐stabilized nanocrystals on hydrophilic oxide supports without ligand‐exchange. Surface functionalization of the supports with primary amine groups either using an organosilane ((3‐aminopropyl)trimethoxysilane) or bonding with aminoalcohols (3‐amino‐1,2‐propanediol) were found to significantly improve the interaction between nanocrystals and supports achieving high loadings (>10 wt. %). The bonding method with aminoalcohols guarantees the opportunity to remove the binding molecules thus allowing clean metal/oxide materials to be obtained, which is of great importance in the preparation of supported nanocrystals for heterogeneous catalysis.
Activation of Di‐tert‐butyldiphosphatetrahedrane: Access to (tBuCP)n (n=2, 4) Ligand Frameworks by P−C Bond Cleavage
Authors: Hierlmeier Gabriele , Wolf Robert 
Published: January 2021

AbstractThe first mixed phosphatetrahedranes were reported only recently and their reactivity is virtually unexplored. Herein, we present a reactivity study on di‐tert‐butyldiphosphatetrahedrane (1), which is the dimer of tert‐butylphosphaalkyne. The (tBuCP)2 tetrahedron is activated selectively by N‐heterocyclic carbene (NHC) nickel(I) and nickel(0) complexes, resulting in novel complexes featuring diverse (tBuCP)n‐frameworks (n=2, 4). Release of the (tBuCP)4 framework from one of the complexes was achieved by addition of CO gas. Furthermore, 1 can be used as a source for P2 units by elimination of di‐tert‐butylacetylene in the coordination sphere of nickel.
DNA Ring‐Opening Polymerization Driven by Base Stacking
Authors: Zhang Zhe , Yu Shuang , Zuo Hua 
Published: January 2021

AbstractSupramolecular polymers, relying on reversible intermolecular interactions, promise a wide range of applications, including optoelectronic materials, self‐healing materials, and biomedical delivery materials. Among potential molecular candidates, DNA strands act as an excellent platform. DNA has a well‐established secondary structure (double helix), and its intermolecular interactions can be readily thermodynamically engineered and kinetically controlled. Extensive studies have demonstrated that various DNA motifs can polymerize/assemble into large polymers with different topology, geometry, and dimensionalities. Most of the reported polymerization is driven by hybridization of DNA strands. Herein, we report a novel system of DNA supramolecular polymerization that is driven by DNA base stacking. The polymerization has been confirmed by native polyacrylamide gel electrophoresis (PAGE) and atomic force microscopy (AFM). We believe that this work will expand the toolbox for DNA supramolecular polymerization and would, with further development, increase further control of DNA supramolecular polymerization.
A Robust Mesoporous Al2O3‐Based Nanocomposite Catalyst for Abundant NOx Storage with Rational Design of Pt and Ba Species
Authors: Wakabayashi Ryutaro , Tomita Atsuko , Kimura Tatsuo 
Published: January 2021

AbstractThe nanostructural design of heterogeneous catalysts has often been demanded for assessing synergetic effects, which should be developed further by using high‐surface‐area porous metal oxide supports. However, such opportunities have been undermined by the poor stability of ordered mesoporous structures. Herein, rational design is demonstrated to obtain nanocomposite catalysts showing improved NOx storage properties owing to the presence of Ba species over a well‐designed mesoporous alumina (Al2O3) support. It is found that Ba species are impregnated successfully only after the stabilization of the mesoporous structure by full crystallization of Al2O3 frameworks to the γ‐phase, with the formation of Pt nanoparticles coinciding with complete removal of organic components. All the insights during this synthetic procedure are essential for designing high‐performance catalysts to purify and recover NOx molecules, and are applied for designing a variety of cutting‐edge mesoporous nanocomposite catalysts.
Corporate sustainability and the market pricing of accounting numbers
Authors: Choi Hyunjung , Moon Doocheol , Guiral Andres , Choi Byungchul 
Published: January 2021

AbstractThis study investigates the association between CSR and the market pricing of accounting income numbers' persistence. More specifically, we examine whether the market evaluation of earnings persistence relies on the firm's CSR activities. We find that the market overestimates the persistence of earnings, leading the market to overprice the earnings for CSR companies in Korean setting. We also find that market overprices components of earnings, which are accruals and cash flow from operations, for CSR companies. However, results show that the level of CSR activities does not affect investors' rational pricing of earnings. This study suggests that market participants prefer companies engaging in CSR activities because they are more likely to provide better financial performance and earnings quality. This preference leads investors to overestimate the persistence of earnings and its components for CSR companies.
Performance analysis of an efficient linear constellation precoded generalized frequency division multiplexing with index modulation in 5G heterogeneous wireless network
Authors: Kumar Relangi Anil , Prasad K. Satya 
Published: January 2021

SummaryNowadays, wireless accesses are demanded with new applications, but they generate many technical issues. Moreover, the issues related to the beyond fifth generation (5G) wireless networks can be tackled using an orthogonal frequency division multiplexing (OFDM) schemes. Due to the huge growth of wireless users, this scheme exists with some technical challenges. An enhanced radio access technology is required to tackle the technical constraints of upcoming 5G wireless network applications. Nowadays, the generalized frequency division multiplexing (GFDM) scheme is exploited by wireless networks because of their benefits like spectral efficiency, low latency, and out‐of‐band (OOB) emission. In this paper, a linear constellation precoded GFDM with interleaved quadrature index modulation (LCP‐GFDM‐IQIM) scheme is proposed to harvest extra diversity gain by spreading the information symbols in‐phase/quadrature component. Also, in‐phase/quadrature (I and Q) dimensions are explored in index modulation (IM). Both theoretical and simulation analysis shows that the proposed LCP‐GFDM‐IQIM scheme achieves better spectral efficiency and energy efficiency as compared to the existing methods.
Experimental and DFT studies on Hexacoordinated acyl(alkyl)and Pentacooordinated Hydroxyalkyl(phosphinite)erhodium(III). Catalytic Hydrolysis of Ammonia Borane
Authors: Azpeitia Susan , Mendicute‐Fierro Claudio , Huertos Miguel A. , Rodríguez‐Diéguez Antonio , Seco José M. , Mota Antonio J. , Garralda María A. 
Published: January 2021

Abstract[Rh(nbd)Cl]2(nbd=norbornadiene) reacts with quinoline‐8‐carbaldehyde (C9H6NCHO) and pyrazole (Hpz) affording, depending on Rh/Hpz ratio, acyl‐alkyl [Rh(μ‐Cl)(C9H6NCO)(Hpz)(σ‐C7H9)]2(1) or [RhCl(C9H6NCO)(Hpz)2(σ‐norbornenyl)] (2), stereoselectively as confirmed by DFT calculations. Hydrogen bond between NH‐pyrazole and O‐acyl occurs.1and2react with diphenylphosphine oxide (SPO) giving 16e [RhCl(C9H6NC(nbyl))(Ph2PO)(Hpz)] (3) through SPO κ1‐P‐coordination, C−C bond coupling between acyl and norbornenyl and outer‐sphere O(P)‐to‐O(C) hydrogen transfer.3shows distorted trigonal bipyramidal structure with weak intramolecular (C)−OH⋅⋅⋅O(=P) and NH⋅⋅⋅Cl hydrogen bonds. DFT calculations indicate this 16e structure being favoured by σ‐ and π‐type orbital multi‐overlapping between pyrazole and both the OH⋅⋅⋅O and chlorine and by intermolecular forces in the crystal. Solutions of3contain an equilibrium between trigonal bipyramid and a square‐planar pyramid with OH interacting with phosphoryl and NH, confirmed by DFT13C NMR calculations.1is very efficient homogeneous catalyst for H3N−BH3hydrolysis to release hydrogen under air.
Effects of Gouda cheese and Allium hookeri on thermogenesis in mice
Authors: Kim Yong‐An , Lee Sang‐Soo , Yoo Jayeon , Kim Eun‐Mi , Nam Myoung Soo , Kim Kee K. 
Published: January 2021

AbstractCheese contains various beneficial nutrients, including calcium and whey protein, as well as large amounts of saturated fatty acids. Thus, intake of cheese increases the production of low‐density lipoprotein‐cholesterol (LDL‐C), a well‐defined risk factor for cardiovascular disease. Therefore, identification of natural products that inhibit LDL‐C production following cheese intake and verification of the efficacy of such products in animal models are essential. Here, we evaluated the effects of Allium hookeri, a well‐known traditional herbal remedy, on metabolism and thermogenesis in mice consuming a cheese‐containing diet. Intake of A. hookeri extracts significantly blocked increases in body weight and fat mass caused by intake of Gouda cheese in mice. Additionally, increases in blood triglyceride levels following intake of Gouda cheese were alleviated by A. hookeri. Moreover, intake of Gouda cheese enhanced thermogenesis efficiency. Thus, A. hookeri may have applications as an important additive for reducing the risk of metabolic disease resulting from cheese consumption.