bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of a Prediction Model for COVID‐19 Acute Respiratory Distress Syndrome in Patients With Rheumatic Diseases: Results From the Global Rheumatology Alliance Registry
Authors: Izadi Zara , Gianfrancesco Milena A. , Aguirre Alfredo , Strangfeld Anja , Mateus Elsa F. , Hyrich Kimme L. , Gossec Laure , Carmona Loreto , Lawson‐Tovey Saskia , Kearsley‐Fleet Lianne , Schaefer Martin , Seet Andrea M. , Schmajuk Gabriela , Jacobsohn Lindsay , Katz Patricia , Rush Stephanie , Al‐Emadi Samar , Sparks Jeffrey A. , Hsu Tiffany Y‐T , Patel Naomi J. , Wise Leanna , Gilbert Emily , Duarte‐García Alí , Valenzuela‐Almada Maria O. , Ugarte‐Gil Manuel F. , Ribeiro Sandra Lúcia Euzébio , de Oliveira Marinho Adriana , de Azevedo Valadares Lilian David , Giuseppe Daniela Di , Hasseli Rebecca , Richter Jutta G. , Pfeil Alexander , Schmeiser Tim , Isnardi Carolina A. , Reyes Torres Alvaro A. , Alle Gelsomina , Saurit Verónica , Zanetti Anna , Carrara Greta , Labreuche Julien , Barnetche Thomas , Herasse Muriel , Plassart Samira , Santos Maria José , Rodrigues Ana Maria , Robinson Philip C. , Machado Pedro M. , Sirotich Emily , Liew Jean W. , Hausmann Jonathan S. , Sufka Paul , Grainger Rebecca , Bhana Suleman , Costello Wendy , Wallace Zachary S. , Yazdany Jinoos ,   Global Rheumatology Alliance Registry
Published: July 2022

ObjectiveSome patients with rheumatic diseases might be at higher risk for coronavirus disease 2019 (COVID‐19) acute respiratory distress syndrome (ARDS). We aimed to develop a prediction model for COVID‐19 ARDS in this population and to create a simple risk score calculator for use in clinical settings.MethodsData were derived from the COVID‐19 Global Rheumatology Alliance Registry from March 24, 2020, to May 12, 2021. Seven machine learning classifiers were trained on ARDS outcomes using 83 variables obtained at COVID‐19 diagnosis. Predictive performance was assessed in a US test set and was validated in patients from four countries with independent registries using area under the curve (AUC), accuracy, sensitivity, and specificity. A simple risk score calculator was developed using a regression model incorporating the most influential predictors from the best performing classifier.ResultsThe study included 8633 patients from 74 countries, of whom 523 (6%) had ARDS. Gradient boosting had the highest mean AUC (0.78; 95% confidence interval [CI]: 0.67‐0.88) and was considered the top performing classifier. Ten predictors were identified as key risk factors and were included in a regression model. The regression model that predicted ARDS with 71% (95% CI: 61%‐83%) sensitivity in the test set, and with sensitivities ranging from 61% to 80% in countries with independent registries, was used to develop the risk score calculator.ConclusionWe were able to predict ARDS with good sensitivity using information readily available at COVID‐19 diagnosis. The proposed risk score calculator has the potential to guide risk stratification for treatments, such as monoclonal antibodies, that have potential to reduce COVID‐19 disease progression.
Intelligent Off/On Switchable Microwave Absorption Performance of Reduced Graphene Oxide/VO2 Composite Aerogel
Authors: Cheng Zheng , Wang Ruofeng , Cao Yishu , Cai Zhihao , Zhang Zhiwei , Huang Yi 
Published: July 2022

AbstractIntelligent microwave absorption (MA) materials possess the ability to dynamically change their microwave absorption performance, according to real‐time requirements, and it is of great significance in future civil and military fields. For the first time, the reduced graphene oxide/VO2 composite aerogels are developed with off/on switchable MA performance, and the switchable mechanism is originated from the unique phase change behavior of VO2. As temperature increases (>68 °C), the VO2 displays the phase change from monoclinic to rutile phase, which accompanies with significant changes in aerogel's electrical conductivity as well as its permittivity, and consequently leads to off/on switchable MA performance. Particularly, two different off/on switch modes, “on to off” and “off to on”, can be separately realized by different composite aerogels as temperature increases, and this off/on switchable MA performance is also confirmed with good cycling stability. More importantly, during the off/on switch process, the maximum changes for the effective absorption bands (ΔEAB) and RL values (ΔRL) can be as high as 7.27 GHz and 49 dB, which exceeds most current reports. Besides, the RCS simulations on aircrafts have been performed and verified this intelligent MA performance, thus providing useful guidance for next‐generation smart electromagnetic devices in various fields.
Interfacial Engineering of Heterostructured Co(OH)2/NiPx Nanosheets for Enhanced Oxygen Evolution Reaction
Authors: Chen Mingxing , Li Huijie , Wu Cailing , Liang Yubo , Qi Jing , Li Jing , Shangguan Enbo , Zhang Wei , Cao Rui 
Published: July 2022

AbstractThe oxygen evolution reaction (OER) remains a bottleneck for the overall water splitting. Electrocatalysts with superior activity and stability are still highly desired. Herein, a stepwise electrochemical strategy is developed to prepare Co(OH)2/NiPx nanosheet arrays with intimate and abundant heterostructures. The Co(OH)2 nanosheets, which are first electrodeposited on a blank carbon cloth electrode, serve as the substrate for the nucleation and growth of NiPx. The resultant heterointerfaces are well regulated by altering the loading of NiPx. The heterostructured Co(OH)2/NiPx with optimal NiPx loading demonstrate significantly enhanced conductivity and hydrophilicity, which greatly facilitate electron and mass transfer. In addition, strong electronic interaction between Co(OH)2 and NiPx is observed, favoring the generation of high‐valence cobalt center, thus the electrocatalytic performances toward OER are remarkably improved. The heterostructured Co(OH)2/NiPx nanosheets achieve the current density of 10 mA cm−2 at an overpotential of 236 mV, while the corresponding values for Co(OH)2 and the benchmark Ir/C are 292 and 262 mV, respectively. This study provides a facile and effective strategy to fabricate transition metal hydroxide/phosphide composite nanomaterials with intimate heterostructures, enhanced conductivity, and improved wettability, which opens a new direction for the design of highly active electrocatalysts.
Novel 3D Printing Encapsulation Strategies for Perovskite Photodetectors
Authors: Zhao Feiyu , Luo Xiao , Gu Chenjie , Chen Jiamin , Hu Ziyang , Peng Yingquan 
Published: July 2022

AbstractThis work presents two different encapsulation strategies for perovskite photodetectors by testing the device stability under elevated ambient humidity of 85% and room temperature (25 °C). The single layer structure is adopted in the devices in order to accelerate the aging tests. The best stability (retention of ≈90% of initial photoresponsivity on average after 24 h, and ≈73% after 168 h) is obtained for devices protected by a flexible UV‐curable resin shell and encapsulated with AB epoxy including a desiccant sheet. The effects of the epoxy outgassing, the presence of desiccant, and the bending ability of encapsulated devices are also investigated. Additionally, with the assistance of 3D printing technology, a new possibility of research in the aspect of electrical device encapsulation is developed. Rapid iterative modifications in materials, shape, inner structure, and easy integration with outer component like desiccant ball/sheet make 3D printing assistance an ideal solution for the design of the encapsulation configuration and its early verification. This work not only opens up an optimal way for perovskite encapsulation by the 3D printing technology, but also provides an ideal solution for the design of the encapsulation configuration and its early verification.
Ultra‐Lightweight, Highly Permeable, and Waterproof Fibrous Organic Electrochemical Transistors for On‐Skin Bioelectronics
Authors: Chen Shuai , Hou Kunqi , Li Ting , Wu Xihu , Wang Zhe , Wei Lei , Leong Wei Lin 
Published: July 2022

AbstractRecently emerged on‐skin electronics with applications in human–machine interfaces and on‐body healthy monitoring call for the development of high‐performance skin‐like electrodes and semiconducting polymers. The development of waterproof and breathable membranes that can provide a high level of protection for human skins and a comfortable contact between electronics and skin are the pressing demands for on‐skin electronics. However, major challenges remain, such as the limited mechanical durability and permeability of gas and liquid, hindering long‐term stability and reusability. Herein, a fibrous electrolyte containing polymer matrix and ionic liquid, which is highly robust, breathable, waterproof, and conformal with human skin is reported. Serving as fibrous substrate and electrolyte of organic electrochemical transistors (OECTs), a high transconductance of ≈0.8 mS, stability over pulsing and time (≈1000 cycles and 30 days) are achieved. The softness of fibrous OECTs enables a comfortable contact after attaching to human skin, which can reduce the interfacial impedance to achieve a high‐quality local amplification of the electrocardiography signals (signal‐to‐noise ratio of 21.7 dB) even in skin squeezed state or after one week. These results indicated that our fibrous OECTs have huge potential for versatile on‐skin electronics such as non‐invasive medical monitoring, soft sensors, and textile electronics.
Cooperative NHC/Photoredox Catalysis: Three Component Radical Coupling of Aroyl Fluorides, Styrenes and Alcohols
Authors: Döben Nadine , Reimler Jannik , Studer Armido 
Published: July 2022

AbstractCooperative NHC/photoredox catalysis has emerged as an important research field in recent years. Herein, the use of tertiary alcohols as alkyl radical precursors to perform three component radical coupling with styrenes and aroyl fluorides for the preparation of α‐arylated alkyl aryl ketones is described. Reaction of an aroyl fluoride with the NHC catalyst provides an acyl azolium ion that can be reduced by the photoredox catalyst to the corresponding ketyl radical anion. Oxidatively generated C‐radicals derived from the alcohol add to the styrene derivative and subsequent cross coupling of the adduct radical with the ketyl radical delivers after NHC fragmentation the targeted ketone.magnified image
Necrobotics: Biotic Materials as Ready‐to‐Use Actuators
Authors: Yap Te Faye , Liu Zhen , Rajappan Anoop , Shimokusu Trevor J. , Preston Daniel J. 
Published: July 2022

AbstractDesigns perfected through evolution have informed bioinspired animal‐like robots that mimic the locomotion of cheetahs and the compliance of jellyfish; biohybrid robots go a step further by incorporating living materials directly into engineered systems. Bioinspiration and biohybridization have led to new, exciting research, but humans have relied on biotic materials—non‐living materials derived from living organisms—since their early ancestors wore animal hides as clothing and used bones for tools. In this work, an inanimate spider is repurposed as a ready‐to‐use actuator requiring only a single facile fabrication step, initiating the area of “necrobotics” in which biotic materials are used as robotic components. The unique walking mechanism of spiders—relying on hydraulic pressure rather than antagonistic muscle pairs to extend their legs—results in a necrobotic gripper that naturally resides in its closed state and can be opened by applying pressure. The necrobotic gripper is capable of grasping objects with irregular geometries and up to 130% of its own mass. Furthermore, the gripper can serve as a handheld device and innately camouflages in outdoor environments. Necrobotics can be further extended to incorporate biotic materials derived from other creatures with similar hydraulic mechanisms for locomotion and articulation.
Non‐Oxidized Bare Metal Nanoparticles in Air: A Rational Approach for Large‐Scale Synthesis via Wet Chemical Process
Authors: Thacharon Athira , Jang Woo‐Sung , Kim Jihyun , Kang Joohoon , Kim Young‐Min , Kim Sung Wng 
Published: July 2022

AbstractMetal nanoparticles (MeNPs) have been used in various industrial applications, owing to their unique physical and chemical properties different from the bulk counterparts. However, the natural oxidation of MeNPs is an imminent hindrance to their widespread applications despite much research efforts to prevent it. Here, a rational approach for non‐oxidized bare MeNPs in air, which requires no additional surface passivation treatment is reported. The direct synthetic route uses the [Gd2C]2+ · 2e− electride as an exceptional electron‐donating agent to reduce diverse metal precursors in alcoholic solvents. All synthesized bare Cu, Ag, and Sn nanoparticles are ultra‐stable in ambient air, exhibiting no trace of metal oxides even on their outermost atomic layer. This unique resistance to oxidation is ascribed to the accumulation of excess electrons on the surface of bare MeNPs, which originates from the spontaneous transfer of anionic electrons from the electride during the nanoparticle growth process. This approach provides not only a revolutionary scheme to obtain MeNPs with non‐passivated and non‐oxidized surfaces, but also fundamental knowledge about metal oxidation.
Probing Dynamic Self‐Reconstruction on Perovskite Fluorides toward Ultrafast Oxygen Evolution
Authors: Zhang Jing , Ye Yu , Wang Zhenbin , Xu Yin , Gui Liangqi , He Beibei , Zhao Ling 
Published: July 2022

AbstractExploring low cost, highly active, and durable electrocatalysts for oxygen evolution reaction (OER) is of prime importance to boost energy conversion efficiency. Perovskite fluorides are emerging as alternative electrocatalysts for OER, however, their intrinsically active sites during real operation are still elusive. Herein, the self‐reconstruction on newly designed NiFe coupled perovskite fluorides during OER process is demonstrated. In situ Raman spectroscopy, ex situ X‐ray absorption spectroscopy, and theoretical calculation reveal that Fe incorporation can significantly activate the self‐reconstruction of perovskite fluorides and efficiently lower the energy barrier of OER. Benefiting from self‐reconstruction and low energy barrier, the KNi0.8Fe0.2F3@nickel foam (KNFF2@NF) electrocatalyst delivers an ultralow overpotential of 258 mV to afford 100 mA cm−2 and an excellent durability for 100 h, favorably rivaling most the state‐of‐the‐art OER electrocatalysts. This protocol provides the fundamental understanding on OER mechanism associated with surface reconstruction for perovskite fluorides.
Two‐Dimensional Perovskite‐Gated AlGaN/GaN High‐Electron‐Mobility‐Transistor for Neuromorphic Vision Sensor
Authors: Hong Xitong , Huang Yulong , Tian Qianlei , Zhang Sen , Liu Chang , Wang Liming , Zhang Kai , Sun Jia , Liao Lei , Zou Xuming 
Published: July 2022

AbstractThe extraordinary optoelectronic properties and continued commercialization of GaN enable it a promising component for neuromorphic visual system (NVS). However, typical GaN‐based optoelectronic devices demonstrated to data only show temporary and unidirectional photoresponse in ultraviolet region, which is an insurmountable obstacle for construction of NVS in practical applications. Herein, an ultrasensitive visual sensor with phototransistor architecture consisting of AlGaN/GaN high‐electron‐mobility‐transistor (HEMT) and two‐dimensional Ruddlesden–Popper organic–inorganic halide perovskite (2D OIHP) is reported. Utilizing the significant variation in activation energy for ion transport in 2D OIHP (from 1.3 eV under dark to 0.4 eV under illumination), the sensor can efficiently perceive and storage optical information in ultraviolet–visible region. Meanwhile, the photo‐enhanced field‐effect mechanism in the depletion‐mode HEMT enables gate‐tunable negative and positive photoresponse, where some typical optoelectronic synaptic functions including inhibitory and excitatory postsynaptic current as well as paired‐pulse facilitation are demonstrated. More importantly, a NVS based on the proposed visual sensor array is constructed for achieving neuromorphic visual preprocessing with an improved color image recognition rate of 100%.
Nanomedicine Strategies for Heating “Cold” Ovarian Cancer (OC): Next Evolution in Immunotherapy of OC
Authors: Yang Yuqi , Zhao Tianjiao , Chen Qiaohui , Li Yumei , Xiao Zuoxiu , Xiang Yuting , Wang Boyu , Qiu Yige , Tu Shiqi , Jiang Yitian , Nan Yayun , Huang Qiong , Ai Kelong 
Published: July 2022

AbstractImmunotherapy has revolutionized cancer treatment, dramatically improving survival rates of melanoma and lung cancer patients. Nevertheless, immunotherapy is almost ineffective against ovarian cancer (OC) due to its cold tumor immune microenvironment (TIM). Many traditional medications aimed at remodeling TIM are often associated with severe systemic toxicity, require frequent dosing, and show only modest clinical efficacy. In recent years, emerging nanomedicines have demonstrated extraordinary immunotherapeutic effects for OC by reversing the TIM because the physical and biochemical features of nanomedicines can all be harnessed to obtain optimal and expected tissue distribution and cellular uptake. However, nanomedicines are far from being widely explored in the field of OC immunotherapy due to the lack of appreciation for the professional barriers of nanomedicine and pathology, limiting the horizons of biomedical researchers and materials scientists. Herein, a typical cold tumor‐OC is adopted as a paradigm to introduce the classification of TIM, the TIM characteristics of OC, and the advantages of nanomedicines for immunotherapy. Subsequently, current nanomedicines are comprehensively summarized through five general strategies to substantially enhance the efficacy of immunotherapy by heating the cold OC. Finally, the challenges and perspectives of this expanding field for improved development of clinical applications are also discussed.
Insight into the Fast‐Rechargeability of a Novel Mo1.5W1.5Nb14O44Anode Material for High‐Performance Lithium‐Ion Batteries
Authors: Tao Runming , Zhang Tianyu , Tan Susheng , Jafta Charl J. , Li Cheng , Liang Jiyuan , Sun Xiao‐Guang , Wang Tao , Fan Juntian , Lu Ziyang , Bridges Craig A. , Suo Xian , Do‐Thanh Chi‐Linh , Dai Sheng 
Published: July 2022

AbstractWadsley–Roth phased niobates are promising anode materials for lithium‐ion batteries, while their inherently low electrical conductivity still limits their rate‐capability. Herein, a novel doped Mo1.5W1.5Nb14O44(MWNO) material is facilely prepared via an ionothermal‐synthesis‐assisted doping strategy. The detailed crystal structure of MWNO is characterized by neutron powder diffraction and aberration corrected scanning transmission electron microscope, unveiling the full occupation of Mo6+‐dopant at thet1 tetrahedral site. In half‐cells, MWNO exhibits enhanced fast‐rechargeability. The origin of the improved performance is investigated by ultraviolet–visible diffuse reflectance spectroscopy, density functional theory (DFT) computation, and electrochemical impedance spectroscopy, revealing that bandgap narrowing improves the electrical conductivity of MWNO. Furthermore, operando X‐ray diffraction elucidates that MWNO exhibits a typical solid‐solution phase conversion‐based lithium‐ion insertion/extraction mechanism with reversible structural evolution during the electrochemical reaction. The boosted lithium‐ion diffusivity of MWNO, due to the Mo6+/W6+doping effect, is confirmed by a galvanostatic intermittent titration technique and DFT. With the simultaneously enhanced electrical conductivity and lithium‐ion diffusivity, MWNO successfully demonstrates its fast‐rechargeability and practicality in the LiNi0.5Mn1.5O4‐coupled full‐cells. Therefore, this work illustrates the potential of ionothermal synthesis in energy storage materials and provides a mechanistic understanding of the doping effect on improving material's electrochemical performance.
Brominated Polythiophene Reduces the Efficiency‐Stability‐Cost Gap of Organic and Quantum Dot Hybrid Solar Cells
Authors: Liu Junwei , Liu Yang , Wang Jingjing , Li Haojin , Zhou Kangkang , Gui Ruohua , Xian Kaihu , Qi Qingchun , Yang Xuantong , Chen Yu , Zhao Wenchao , Yin Hang , Zhao Kui , Zhou Zhihua , Ye Long 
Published: July 2022

AbstractThe emerging solution‐processed solar cells have attracted worldwide effort in the last decade. Developing efficient, stable, and cost‐effective solar cells is strongly desirable in countering the growing global warming. Nevertheless, the photovoltaic performance and stability of hybrid solar cells based on low‐cost polythiophenes are far from satisfactory, due to their high‐lying energy levels and excessive aggregation. Herein, it is shown that brominated polythiophene (P3HT‐Br), prepared via a facile two‐step approach can effectively facilitate charge transport and suppress recombination in quantum dot (QD)/organic heterojunctions. Accordingly, the power conversion efficiency of the optimized hybrid polythiophene/QD cell is boosted from 8.7% to 11% (a 26% increase) with markedly reduced energy loss. More strikingly, the device achieves record‐high thermal stability with a lifetime of over 400 h maintaining 80% of the initial performance. Both device efficiency and stability are the best reported for polythiophene/QD hybrid solar cells. Moving forward, brominated polythiophenes hold great application in perovskite solar cells with significantly improved performance and offer new opportunities for other emerging solar cells.
Combined effects of organic amendments and fertilization on cotton growth and yield
Authors: Adeli Ardeshir , Brooks John P. , Miles Dana , Misna Todd , Feng Gary , Jenkins Johnie N. 
Published: July 2022

AbstractWith escalating fertilizer prices, interest in using poultry litter as a source of plant nutrients has increased. However, the rapid decomposition of litter, particularly in the hot and humid southern United States, makes poultry litter vulnerable to loss of nutrients. Biochar and lignite have been proposed to mitigate nutrient loss, particularly N. However, information on the integration of biochar and lignite with poultry litter on cotton (Gossypium hirsutum L.) growth and yield is limited under southeastern agro‐ecosystems. A field experiment was conducted on a Leeper silty clay loam soil from 2017 to 2020 to evaluate the combined effect of poultry litter and inorganic N fertilizer with biochar and lignite on cotton growth, yield, and nutrient utilization. The treatments consisted of a 3 × 3 full‐factorial arrangement of amendments and fertilization types organized in a randomized complete block design. Application rates were 6.7 Mg ha–1 for poultry litter, 6.7 Mg ha–1 for biochar and lignite, and 134 kg N ha–1 for inorganic fertilizer. Lignite and biochar were only added once. The combination of biochar and lignite with poultry litter and inorganic fertilizer was positively effective on yield and yield components. Integration of biochar with poultry litter and inorganic fertilizer increased lint yield by 42 and 44% as compared with fertilization alone. Cotton leaf area index increased by 34 and 51% when biochar and lignite were combined with inorganic fertilizer in 2020. The leaching loss of postharvest soil NO3–N was significantly reduced by 66 and 50% when biochar and lignite were combined with inorganic fertilizer, respectively.