bluuebunny/crossref_metadata_2025_split huggingface dataset:
Contraréplica
Authors: Fernández Martínez Esperanza , Tourneur Francis 
Published: September 2022

Los autores agradecemos a Ph. Legrand la expre­sión de sus opiniones sobre la extensión estratigráfica de Parastriatopora ex gr. annulata (Le Maitre) en la región de Ougarta (Argelia) de cuya geología tiene, sin duda, un profundo conocimiento. No obstante, quisieramos puntualizar que, por ser más recientes, los datos estratigráficos sobre esta región manejados por nosotros, proceden basicamente de! infor­me inédito de la misión SONATRACH, realizado por Boumendjel et al. (1985). Habida cuenta de las ligeras diferencias existentes entre los datos aportados por estos autores y los publicados por Legrand (1967, 1970, 1977), y en un intento de refllejar todas las opiniones conoci­das, se incluyo (p. 5) la distribución estratigráfica del grupo, tal y como puede ser inferida de la tabla VII de Legrand (1967, p. 284). Lamentamos profundamente no haber interpretado de forma correcta la idea que este autor deseaba expresar en dicha tabla. La discusion de las divergencias expuestas sobrepasa ampliamente los límites de nuestro trabajo.
La fauna de foraminíferos del Triásico medio (Ladiniense) de la zona sur de los Catalánides (Dominio Baix Ebre – Priorat)
Authors: Márquez Sanz Leopoldo , Trifonova Ekaterina , Calvet Francesc 
Published: September 2022

En este trabajo se estudia la fauna de foraminíferos que aparece en el Muschelkalk superior (Unidad Rasquera) del Dominio Baix Ebre-Priorat (Catalánides). La Unidad Rasquera está formada, principalmente, por facies carbonatadas de rampa profunda dispuestas en cinco ciclos granocrecientes y somerizantes. Las especies germánicas son comunes en la asociación aunque algunas especies alpinas, como Duostomina alta y Oberhauserella mesotriasica, son abundantes también. Esto indicaría una importante influencia del Thetis en esta área.
Novel multi jet fusion 3D‐printed patient immobilization for radiation therapy
Authors: Robar James L. , Kammerzell Barret , Hulick Kevin , Kaiser Pierre , Young Calvin , Verzwyvelt Vanessa , Cheng Xin , Shepherd Matthew , Orbovic Radojka , Fedullo Sara , Majcher Christopher , DiMarco Stephen , Stasiak James 
Published: September 2022

AbstractPurposeThermoplastic immobilizers are used routinely in radiation therapy to achieve positioning accuracy. These devices are variable in quality as they are dependent on the skill of the human fabricator. We examine the potential multi jet fusion (MJF) 3D printing for the production immobilizers with a focus on the surface dosimetry of several MJF‐printed PA12‐based material candidates. Materials are compared with the goal of minimizing surface dose with comparison to standard thermoplastic. We introduce a novel metamaterial design for the shell of the immobilizer, with the aims of mechanical robustness and low‐dose buildup. We demonstrate first examples of adult and pediatric cranial and head‐and‐neck immobilizers.MethodsThree different PA12 materials were examined and compared to fused deposition modeling–printed polylactic acid (PLA), PLA with density lowered by adding hollow glass microspheres, and to perforated or perforated/stretched and solid status quo thermoplastic samples. Build‐up dose measurements were made using a parallel plate chamber. A metamaterial design was established based on a packed hexagonal geometry. Radiochromic film dosimetry was performed to determine the dependence of surface dose on the metamaterial design. Full cranial and head‐and‐neck prototype immobilizers were designed, printed, and assessed with regard to dimensional accuracy.ResultsBuild‐up dose measurements demonstrated the superiority of the PA12 material with a light fusing agent, which yielded a ∼15% dose reduction compared to other MJF materials. Metamaterial samples provided dose reductions ranging from 11% to 40% compared to stretched thermoplastic. MJF‐printed immobilizers were produced reliably, demonstrated the versatility of digital design, and showed dimensional accuracy with 97% of sampled points within ±2 mm.ConclusionsMJF is a promising technology for an automated fabrication of patient immobilizers. Material selection and metamaterial design can be leveraged to yield surface dose reduction of up to 40%. Immobilizer design is highly customizable, and the first examples of MJF‐printed immobilizers demonstrate excellent dimensional accuracy.
Scalable‐Manufactured Plasmonic Metamaterial with Omnidirectional Absorption Bandwidth across Visible to Far‐Infrared
Authors: Li Yang , Huang Zhequn , Xu Yafen , Zhang Heng , Wang Qixiang , Qiao Huaxu , Shang Wen , Deng Tao , Cui Kehang 
Published: September 2022

AbstractBroadband, omnidirectional light absorption in the infrared range is critical for emerging aerospace and ground applications, such as machine vision, autonomous vehicle technology, and aerospace telescope. Broadband absorbers (BBAs) need to possess strong absorption through thin structures for high signal‐to‐noise ratios, as well as manufacturing scalability and service reliability in harsh environment for practical applications. Such requirements rule out many known absorbing materials such as carbon nanotubes that are intrinsically lossy and fragile. Achieving strong light‐matter interaction in the mid‐ and long‐wavelength infrared ranges has been extremely challenging despite long‐standing research efforts. Here, an aerospace‐grade, ≈2.0 µm‐thick hierarchical coral‐structured titanium nitride (coral‐TiN) plasmonic metamaterial is experimentally realized with over 90% omnidirectional absorption across the visible to the long‐wavelength infrared range (0.25–25 µm) using a scalable fabrication method. The broadband optical control of the coral‐TiN BBA is achieved by the superposition of the hybridized plasmonic mode in the visible and near‐infrared, the cavity mode in the short‐wavelength infrared as well as the propagating surface plasmon polariton mode in the mid‐ and long‐wavelength infrared. With conformal alumina coating, the plasmonic absorber demonstrates outstanding reliability in rigorous aerospace‐grade tests under harsh mechanical and thermal environmental conditions.
3D Bioprinted Patient‐Specific Extracellular Matrix Scaffolds for Soft Tissue Defects
Authors: Behre Anne , Tashman Joshua W. , Dikyol Caner , Shiwarski Daniel J. , Crum Raphael J. , Johnson Scott A. , Kommeri Remya , Hussey George S. , Badylak Stephen F. , Feinberg Adam W. 
Published: September 2022

AbstractSoft tissue injuries such as volumetric muscle loss (VML) are often too large to heal normally on their own, resulting in scar formation and functional deficits. Decellularized extracellular matrix (dECM) scaffolds placed into these wounds have shown the ability to modulate the immune response and drive constructive healing. This provides a potential solution for functional tissue regeneration, however, these acellular dECM scaffolds are challenging to fabricate into complex geometries. 3D bioprinting is uniquely positioned to address this, being able to create patient‐specific scaffolds based on clinical 3D imaging data. Here, a process to use freeform reversible embedding of suspended hydrogels (FRESH) 3D bioprinting and computed tomography (CT) imaging to build large volume, patient‐specific dECM patches (≈12 × 8 × 2 cm) for implantation into canine VML wound models is developed. Quantitative analysis shows that these dECM patches are dimensionally accurate and conformally adapt to the surface of complex wounds. Finally, this approach is extended to a human VML injury to demonstrate the fabrication of clinically relevant dECM scaffolds with precise control over fiber alignment and micro‐architecture. Together these advancements represent a step towards an improved, clinically translatable, patient‐specific treatment for soft tissue defects from trauma, tumor resection, and other surgical procedures.
Recent Progress in Developing a LiOH‐Based Reversible Nonaqueous Lithium–Air Battery
Authors: Gao Zongyan , Temprano Israel , Lei Jiang , Tang Linbin , Li Junjian , Grey Clare P. , Liu Tao 
Published: September 2022

AbstractThe realization of practical nonaqueous lithium–air batteries (LABs) calls for novel strategies to address their numerous theoretical and technical challenges. LiOH formation/decomposition has recently been proposed as a promising alternative route to cycling LABs via Li2O2. Herein, the progress in developing LiOH‐based nonaqueous LABs is reviewed. Various catalytic systems, either soluble or solid‐state, that can activate a LiOH‐based electrochemistry are compared in detail, with emphasis in providing an updated understanding of the oxygen reduction and evolution reactions in nonaqueous media. We identify the key factors that can switch the cell chemistry between Li2O2 and LiOH and highlight the debate around these routes, as well as rationalize potential causes for these opposing opinions. The identities of the reaction intermediates, activity of redox mediators and additives, location of reaction interfaces, causes of parasitic reactions, as well as the effect of CO2 on the LiOH electrochemistry, all play a critical role in altering the relative rates of a series of interconnected reactions and all warrant further investigation.
Thermoformable Boron Nitride Based All‐Ceramics
Authors: Bice Jason E. , St. Germain Echo , Wohlever Samuel J. , Goddard Grace , Erb Randall M. 
Published: September 2022

AbstractThermoforming processing, traditionally reserved for thermoplastic polymers and sheet metals, is extended here to boron‐based all‐ceramics. Specifically, sintered boron nitride composite sheets manufactured via a combined vibration and tape‐casting photopolymerization process exhibit a highly oriented microstructure that allows these preform sheets to flow as viscous Bingham pseudoplastics during compression molding. These sintered all‐ceramic preforms are thermoformed into thin, complex parts with features down to 200 µm. Further, a new workflow is leveraged to generate bespoke all‐ceramic heat spreaders that can be press‐fit onto printed circuit boards and outperform metal heat sinks as a low‐profile thermal management solution. This work offers a route for other all‐ceramics that may be thermoformed through first fabricating pre‐forms with highly‐ordered anisotropic microstructures.
Universal Metasurfaces for Complete Linear Control of Coherent Light Transmission
Authors: Chang Taeyong , Jung Joonkyo , Nam Sang‐Hyeon , Kim Hyeonhee , Kim Jong Uk , Kim Nayoung , Jeon Suwan , Heo Minsung , Shin Jonghwa 
Published: September 2022

Recent advances in metasurfaces and optical nanostructures have enabled complex control of incident light with optically thin devices. However, it has thus far been unclear whether it is possible to achieve complete linear control of coherent light transmission, that is, independent control of polarization, amplitude, and phase for both input polarization states, with just a single, thin nanostructure array. Here, it is proved possible, and a universal metasurface is proposed, a bilayer array of high‐index elliptic cylinders that possesses a complete degree of optical freedom with fully designable chirality and anisotropy. The completeness of achievable light control is mathematically shown with corresponding Jones matrices, new types of 3D holographic schemes that were formerly impossible are experimentally demonstrated, and a systematic way of realizing any input‐state‐sensitive vector linear optical device is presented. The results unlock previously inaccessible degrees of freedom in light transmission control.
Role of Interfaces in Solid‐State Batteries
Authors: Miao Xiang , Guan Shundong , Ma Cheng , Li Liangliang , Nan Ce‐Wen 
Published: September 2022

AbstractSolid‐state batteries (SSBs) are considered as one of the most promising candidates for the next‐generation energy‐storage technology, because they simultaneously exhibit high safety, high energy density, and wide operating temperature range. The replacement of liquid electrolytes with solid electrolytes produces numerous solid–solid interfaces within the SSBs. A thorough understanding on the roles of these interfaces is indispensable for the rational performance optimization. In this review, the interface issues in the SSBs, including internal buried interfaces within solid electrolytes and composite electrodes, and planar interfaces between electrodes and solid electrolyte separators or current collectors are discussed. The challenges and future directions on the investigation and optimization of these solid–solid interfaces for the production of the SSBs are also assessed.
Nature‐Inspired Design of Molybdenum–Selenium Dual‐Single‐Atom Electrocatalysts for CO2 Reduction
Authors: Sun Kaian , Yu Ke , Fang Jinjie , Zhuang Zewen , Tan Xin , Wu Yue , Zeng Lingyou , Zhuang Zhongbin , Pan Yuan , Chen Chen 
Published: September 2022

AbstractElectrochemical CO2 reduction (ECR) is becoming an increasingly important technology for achieving carbon neutrality. Inspired by the structure of naturally occurring Mo‐dependent enzymes capable of activating CO2, a heteronuclear Mo–Se dual‐single‐atom electrocatalyst (MoSA–SeSA) for ECR into CO with a Faradaic efficiency of above 90% over a broad potential window from −0.4 to −1.0 V versus reversible hydrogen electrode is demonstrated here. Both operando characterization and theoretical simulation results verify that MoSA acts as central atoms that directly interact with the ECR feedstock and intermediates, whereas the SeSA adjacent to MoSA modulates the electronic structure of MoSA through long‐range electron delocalization for inhibiting MoSA poisoning caused by strong CO adsorption. In addition, the SeSAs far from MoSA help suppress the competing hydrogen evolution side reaction and accelerate the CO2 transport by repelling H2O. This work provides new insight into the precise regulation and in‐depth understanding of multisite synergistic catalysis at the atomic scale.
High Efficiency Quasi‐2D Ruddlesden–Popper Perovskite Solar Cells
Authors: Caiazzo Alessandro , Janssen René A. J. 
Published: September 2022

AbstractQuasi‐2D Ruddlesden–Popper perovskites (RPPs) are promising candidates for stable and efficient solar cells. Even though photovoltaic devices based on these materials are still lagging behind traditional 3D perovskites, they have experienced a dramatic increase in power‐conversion efficiency, recently reaching >20%. As knowledge develops, the toolbox of RPP researchers is steadily growing in terms of organic spacers, additives, and characterization methods. This review aims to describe the use of such a toolbox to achieve high efficiency solar cells. The use of additives, functionalized spacers, and novel fabrication techniques are explored to control morphology, crystallinity, interlayer interaction, and phase distribution. Moreover, methods to achieve the coveted phase purity in RPPs and its implications on both single‐ and multi‐junction solar cells are discussed. By describing successful cases of high efficiency solar cells combined with in‐depth knowledge of material properties, it is shown that there are still several open research questions that need exploring to further develop this fascinating class of perovskites.
Harvest frequency and harvest timing following a freeze event effects on yield and composition of switchgrass
Authors: Rivera‐Chacon Raul , Castillo Miguel S. , Gannon Travis W. , Bekewe Perejitei E. 
Published: September 2022

AbstractConstant supply of biomass from the field is limited by the seasonality of production of warm‐season grasses in the transition U.S. region. Delaying harvest after occurrence of freeze may be an alternative to extend the biomass supply period of switchgrass (Panicum virgatum L.) in North Carolina. The objectives of this study were to evaluate the effects of harvest frequency (HF) and harvest timing at the end of the growing season (HT) on switchgrass biomass yield, nutrient (N, P, and K) removal, and dry matter (DM) and ash concentrations. Treatments were the factorial combination of two HF (clipped once [1X] or twice [2X] per season) and three HT (before freeze in October, after first freeze in November, and late winter in February). Delaying harvest after occurrence of freeze did not affect total annual biomass yield for the 2X treatment (average of 15.5 Mg ha−1), whereas for 1X yield declined from 14.4 to 10.1 Mg ha−1 when harvest was delayed from October to February. Ash concentration declined from 29 g kg−1 in October to 14 g kg−1 in February. The DM concentration level reached in February was lowest (893 g kg−1) and it would be considered safe for storage of biomass. Nutrient removal was consistently greater for 2X than 1X (ranging from 43 to 137, 3.6 to 25.1, and 54 to 213 kg ha−1 for N, P, K, respectively). Delaying harvest of switchgrass after a freeze event is feasible when clipping twice a year to extend the window of biomass supply.
Silberfreie C−H‐Aktivierung: Strategische Ansätze zur Erschließung des vollen Potenzials von C−H‐Aktivierungen in der nachhaltigen organischen Synthese
Authors: Mondal Arup , van Gemmeren Manuel 
Published: September 2022

AbstractDie Aktivierung von C–H‐Bindungen gilt als eine der attraktivsten Methoden in der organischen Synthesechemie, da sie das Potenzial hat, Synthesewege zu verkürzen und eine gegenüber herkömmlichen Synthesestrategien komplementäre Produktpalette zu erzeugen. Bei vielen aktuellen Methoden werden jedoch Silbersalze als Additive eingesetzt, was zu stöchiometrischem Metallabfall führt und so verhindert, dass das volle Potenzial der C−H‐Aktivierung ausgeschöpft werden kann. Daher erhält die Entwicklung von silberfreien Protokollen in letzter Zeit immer mehr Aufmerksamkeit. Mechanistisch kann Silber bei der C−H‐Aktivierung verschiedene Funktionen erfüllen, sodass die Vermeidung des Einsatzes von Silber unterschiedliche Ansätze erfordert, je nachdem, welche Funktion es in einem bestimmten Prozess erfüllt. In diesem Aufsatz wird ein Vergleich von silberbasierten und ‐freien Methoden vorgestellt. Wir konzentrieren uns auf die strategischen Ansätze zur Entwicklung einer silberfreien C−H‐Aktivierung und statten den Leser mit dem nötigen Grundwissen aus, um nachhaltige Methoden für die C−H‐Aktivierung zu entwickeln.
Isoxazol‐Nukleoside als Bausteine für eine plausible Proto‐RNA
Authors: Xu Felix , Crisp Antony , Schinkel Thea , Dubini Romeo C. A. , Hübner Sarah , Becker Sidney , Schelter Florian , Rovó Petra , Carell Thomas 
Published: September 2022

AbstractDie Frage, wie sich die RNA als ein Träger der genetischen Information entwickelt hat, ist von grundlegender Bedeutung für unser Verständnis des Ursprungs des Lebens. Das RNA‐Molekül ist viel zu komplex, als das es in einem einzigen Evolutionsschritt hat entstehen können, was darauf hindeutet, dass es Proto‐RNAs (erste Vorläufer der RNA) gegeben haben könnte, die sich im Laufe der Zeit zu der heutigen RNA entwickelt haben. Hier zeigen wir, dass Isoxazol‐Nukleoside, die aus Hydroxylamin, Cyanoacetylen, Harnstoff und Ribose gebildet werden, plausible Vorläufer für RNA sind. Das Isoxazol‐Nukleosid kann sich innerhalb eines RNA‐Strangs zu Cytidin umlagern, was zu einer Erhöhung der Paarungsstabilität führt. Wenn die Proto‐RNA ein kanonisches seed‐Nukleosid mit definierter Stereochemie enthält, kann das seed‐Nukleosid die Konfiguration des anomeren Zentrums kontrollieren, das sich, während der in‐RNA‐Umwandlung bildet. Die Ergebnisse zeigen, dass sich die RNA nach der Strangbildung aus evolutionär primitiven Vorläufern wie Isoxazol‐Ribosiden entwickelt haben könnte.
Multidimensional scholarly citations: Characterizing and understanding scholars' citation behaviors
Authors: Cui Yunxue , Wang Yongzhen , Liu Xiaozhong , Wang Xianwen , Zhang Xuhong 
Published: September 2022

AbstractThis study investigates scholars' citation behaviors from a fine‐grained perspective. Specifically, each scholarly citation is considered multidimensional rather than logically unidimensional (i.e., present or absent). Thirty million articles from PubMed were accessed for use in empirical research, in which a total of 15 interpretable features of scholarly citations were constructed and grouped into three main categories. Each category corresponds to one aspect of the reasons and motivations behind scholars' citation decision‐making during academic writing. Using about 500,000 pairs of actual and randomly generated scholarly citations, a series of Random Forest‐based classification experiments were conducted to quantitatively evaluate the correlation between each constructed citation feature and citation decisions made by scholars. Our experimental results indicate that citation proximity is the category most relevant to scholars' citation decision‐making, followed by citation authority and citation inertia. However, big‐name scholars whose h‐indexes rank among the top 1% exhibit a unique pattern of citation behaviors—their citation decision‐making correlates most closely with citation inertia, with the correlation nearly three times as strong as that of their ordinary counterparts. Hopefully, the empirical findings presented in this paper can bring us closer to characterizing and understanding the complex process of generating scholarly citations in academia.
Using marginal structural joint models to estimate the effect of a time‐varying treatment on recurrent events and survival: An application on arrhythmogenic cardiomyopathy
Authors: Gregorio Caterina , Cappelletto Chiara , Romani Simona , Stolfo Davide , Merlo Marco , Barbati Giulia 
Published: September 2022

AbstractIn many clinical applications to evaluate the effect of a treatment, randomized control trials are difficult to carry out. On the other hand, clinical observational registries are often available and they contain longitudinal data regarding clinical parameters, drug therapies, and outcomes. In the past, much research has addressed causal methods to estimate treatment effects from observational studies. In the context of time‐varying treatments, marginal structural models are often used. However, most analyses have focused on binary outcomes or time‐to‐the‐first event analyses. The novelty of our approach is to combine the marginal structural methodology with the case where correlated recurrent events and survival are the outcomes of interest. Our work focuses on solving the nontrivial problem of defining the measures of effect, specifying the model for the time‐dependent weights and the model to estimate the outcome, implementing them, and finally estimating the final treatment effects in this life‐history setting. Our approach provides a strategy that allows obtaining treatment effect estimates both on the recurrent events and the survival with a clear causal and clinical interpretation. At the same time, the strategy we propose is based on flexible modeling choices such as the use of joint models to capture the correlation within events from the same subject and the specification of time‐dependent treatment effects. The clinical problem which motivated our work is the evaluation of the treatment effect of beta‐blockers in arrhythmogenic right ventricular cardiomyopathy (ARVC/D), and the dataset comes from the Trieste Heart Muscle Disease Registry.