bluuebunny/crossref_metadata_2025_split huggingface dataset:
An efficient magnetic resonance image data quality screening dashboard
Authors: Gates Evan D. H. , Celaya Adrian , Suki Dima , Schellingerhout Dawid , Fuentes David 
Published: February 2022

AbstractPurposeComplex data processing and curation for artificial intelligence applications rely on high‐quality data sets for training and analysis. Manually reviewing images and their associated annotations is a very laborious task and existing quality control tools for data review are generally limited to raw images only. The purpose of this work was to develop an imaging informatics dashboard for the easy and fast review of processed magnetic resonance (MR) imaging data sets; we demonstrated its ability in a large‐scale data review.MethodsWe developed a custom R Shiny dashboard that displays key static snapshots of each imaging study and its annotations. A graphical interface allows the structured entry of review data and download of tabulated review results. We evaluated the dashboard using two large data sets: 1380 processed MR imaging studies from our institution and 285 studies from the 2018 MICCAI Brain Tumor Segmentation Challenge (BraTS).ResultsStudies were reviewed at an average rate of 100/h using the dashboard, 10 times faster than using existing data viewers. For data from our institution, 1181 of the 1380 (86%) studies were of acceptable quality. The most commonly identified failure modes were tumor segmentation (9.6% of cases) and image registration (4.6% of cases). Tumor segmentation without visible errors on the dashboard had much better agreement with reference tumor volume measurements (root‐mean‐square error 12.2 cm3) than did segmentations with minor errors (20.5 cm3) or failed segmentations (27.4 cm3). In the BraTS data, 242 of 285 (85%) studies were acceptable quality after processing. Among the 43 cases that failed review, 14 had unacceptable raw image quality.ConclusionOur dashboard provides a fast, effective tool for reviewing complex processed MR imaging data sets. It is freely available for download at https://github.com/EGates1/MRDQED.
Electrically Reconfigurable Organic Logic Gates: A Promising Perspective on a Dual‐Gate Antiambipolar Transistor
Authors: Hayakawa Ryoma , Honma Kosuke , Nakaharai Shu , Kanai Kaname , Wakayama Yutaka 
Published: February 2022

AbstractElectrically reconfigurable organic logic circuits are promising candidates for realizing new computation architectures, such as artificial intelligence and neuromorphic devices. In this study, multiple logic gate operations are attained based on a dual‐gate organic antiambipolar transistor (DG‐OAAT). The transistor exhibits a Λ‐shaped transfer curve, namely, a negative differential transconductance at room temperature. It is important to note that the peak voltage of the drain current is precisely tuned by three input signals: bottom‐gate, top‐gate, and drain voltages. This distinctive feature enables multiple logic gate operations with “only a single DG‐OAAT,” which are not obtainable in conventional transistors. Five logic gate operations, which correspond to AND, OR, NAND, NOR, and XOR, are demonstrated by adjusting the bottom‐gate and top‐gate voltages. Moreover, varying the drain voltage makes it possible to reversibly switch two logic gates, e.g., NAND/NOR and OR/XOR. In addition, the DG‐OAATs show a high degree of stability and reliability. The logic gate operations are observed even months later. The hysteresis in the transfer curves is also negligible. Thus, the device concept is promising for realizing multifunctional logic circuits with a simple transistor configuration. Hence, these findings are expected to surpass the current limitations in complementary metal−oxide−semiconductor devices.
Interface Engineering of Co/CoMoN/NF Heterostructures for High‐Performance Electrochemical Overall Water Splitting
Authors: Ma Haibin , Chen Zhiwen , Wang Zhili , Singh Chandra Veer , Jiang Qing 
Published: February 2022

AbstractThe development of low‐cost and high‐efficiency catalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline electrolyte is still challenging. Herein, interfacial Co/CoMoN heterostructures supported on Ni foam (Co/CoMoN/NF) are constructed by thermal ammonolysis of CoMoOx. In 1.0 m KOH solution, Co/CoMoN/NF heterostructures exhibit excellent HER activity with an overpotential of 173 mV at 100 mA cm−2 and a Tafel slope of 68.9 mV dec−1. Density functional theory calculations indicate that the low valence state Co site acts as efficient water‐dissociation promoter, while CoMoN substrate has favorable hydrogen adsorption energy, leading to an enhanced HER activity. The Co/CoMoN/NF heterostructures also achieve high OER activity with an overpotential of 303 mV at 100 mA cm−2 and a Tafel slope of 56 mV dec−1. Using Co/CoMoN/NF heterostructures as the cathode and anode, the alkaline electrolyzer requires a low voltage of 1.56 V to reach the current density of 100 mA cm−2 along with superior long‐term durability. This study provides a new design strategy toward low‐cost and excellent catalysts for water splitting.
Fabrication of Highly Photosensitive MoS2 Photodetector Films Using Rapid Electrohydrodynamic‐Jet Printing Process
Authors: Hong Seongin , Baek Seungho , Can Thi Thu Thuy , Choi Woon‐Seop , Kim Sunkook 
Published: February 2022

AbstractMolybdenum disulfide (MoS2) is a representative transition metal dichalcogenide (TMD) that has been extensively studied as a potential semiconducting material for next generation optoelectronic applications due to its exceptional optical, electrical, and mechanical properties. However, the lack of an efficient and scalable technique for MoS2 film synthesis is a major drawback. Therefore, in this study, electrohydrodynamic (EHD) jet printed MoS2 (EJP MoS2) photodetectors are reported. The optoelectronic characteristics of the EJP MoS2 photodetector are investigated using two modes: two‐terminal and three‐terminal configuration under light illumination. For the two‐terminal mode of the EJP MoS2 photodetector, a photosensitivity of 3444% and a photoresponsivity of 1.68 A W–1 are achieved, respectively. Concurrently, the three‐terminal mode of the EJP MoS2 photodetector exhibits an improved photosensitivity (4495%) and photoresponsivity (3.78 A W–1) under gate voltage. The proposed EHD jet printing method and the EJP MoS2 based photodetector will provide a feasible solution for high performance TMDs based photonics.
Homogeneous Palladium Diselenide pn‐Junction Diodes for Reconfigurable Circuit Applications
Authors: Lee Minjong , Park Chang Yong , Sim Sangjun , Lee Kimoon , Lee Young Tack 
Published: February 2022

AbstractLayered 2D materials, owing to their unique physical and electrical properties, have significant potential for use in future nanomaterial‐based electronic devices. Among these, palladium diselenide (PdSe2) has recently emerged as a distinct 2D material with air stability and strong ambipolar property. In this study, the versatility of a PdSe2‐based split‐gate field‐effect transistor (SG‐FET) using its stable ambipolar nature is demonstrated. By applying sequentially polarized SG biases, the PdSe2 SG‐FET could be operated as a homogeneous and reconfigurable pn‐junction diode. The optimized h‐BN/PdSe2/h‐BN sandwich SG‐FET exhibits almost symmetric behaviors in the n‐ and p‐channel regions, enabling a reconfigurable single‐inversion AND (SAND) logic gate function, which can be used as a phase difference‐detection circuit composed only of a single component. It is believed that this approach to the reconfigurable diode and its circuit application paves the way for future 2D material‐based electronics.
Integrating Nanoreactor with O–Nb–C Heterointerface Design and Defects Engineering Toward High‐Efficiency and Longevous Sodium Ion Battery
Authors: Luo Dan , Ma Chuyin , Hou Junfeng , Zhang Zhen , Feng Renfei , Yang Leixin , Zhang Xiaowen , Lu Han , Liu Jiabing , Li Yebao , Zhang Yongguang , Wang Xin , Chen Zhongwei 
Published: February 2022

AbstractSodium‐ion batteries (SIBs) have attracted much attention for their advantages of high operating voltage, environmental friendliness and cost‐effectiveness. However, the intrinsic defects of anode materials (such as poor electrical conductivity, sluggish kinetics, and large volume changes) hinder them from meeting the requirements for practical applications. Herein, a Nb2O5@carbon nanoreactor containing both a O–Nb–C heterointerface and oxygen vacancies (Nb2O5‐x@MEC) as an anode material is designed to drive SIBs toward extraordinary capacity and ultra‐long cycle life. The heterostructured nanoreactor both effectively immobilizes defective Nb2O5 by forming O‐Nb‐C heterointerface and offers homogeneous dispersion of Nb2O5 with desirable content to prevent their agglomeration. In addition, vast active interfaces, favored electrolyte infiltration, and a well‐structured ion–electron transportation channel are enabled by the framework, improving sodium ion storage and enhancing redox reaction kinetics. The enhancement brought by spatial confinement, defect implantation and heterointerface design give the composites a highly reversible sodiation–desodiation process and remarkable structural stability. By virtue of these superiorities, Nb2O5‐x@MEC delivers excellent performance, i.e., high areal capacity over 1.1 mAh cm‐2, admirable rate capability up to 20 A g‐1, and ultra‐long cycling performance over 5000 cycles, holding great promise for utilization in practically viable SIBs.
Circularly polarized luminescence of coordination aggregates
Authors: Gong Zhong‐Liang , Li Zhong‐Qiu , Zhong Yu‐Wu 
Published: February 2022

AbstractThe development and applications of materials with efficient circularly polarized luminescence (CPL) have become an interdisciplinary frontier research topic. We summarize herein the recent advance in the development and applications of CPL‐active aggregates based on metal‐ligand coordination materials (termed as “coordination aggregates”). The materials surveyed are classified as aggregates of small‐molecular metal complexes, which include monocomponent assemblies of Pt(II) complexes and other complexes and binary aggregates of metal complexes, and CPL‐active metal‐ligand coordination helicates, polymers, and frameworks. The efforts in improving the dissymmetry luminescence factors and quantum yields of these materials and the use of the aggregation strategy in enhancing the performance of isolated molecules are discussed. The recent applications of chiral metal complexes in circularly polarized organic light‐emitting diodes (OLEDs) based on solution‐ or evaporation‐processed procedures are surveyed. In addition, the uses of lanthanide complexes in CPL‐contrast imaging and as CPL probes are highlighted. The common discussion on the mechanism of aggregation‐enhanced CPLs and a perspective on future works of CPL‐active coordination aggregates are finally given.
Activities of medical centers for athletes and spectators at cycling track events in the Tokyo 2020 Olympic and Paralympic Games
Authors: Yanagawa Youichi , Muto Takuya , Shakagori Masami , Terakado Atsuhiko , Kumai Tsukasa 
Published: February 2022

AimWe focused on the preparation and activities of clinics for spectators and athletes in the Izu Velodrome in Shizuoka Prefecture, which was managed by the Tokyo Organizing Committee of the Olympic and Paralympic Games (TOC).MethodsTwo medical clinics were established for the track cycling competition: one for Olympians and their associates, and one for spectators, TOC‐related individuals, and volunteers. Each medical clinic had two separate buildings. One was for individuals with suspected coronavirus disease (COVID‐19); the other was for individuals who were deemed unlikely to have COVID‐19.ResultsDuring the Olympics, five Olympians and one umpire were transported to a designated hospital. All of them had fall‐related injuries. Nine patients visited the clinic for spectators, and six of the nine were volunteers. Two volunteers showed side‐effects in association with COVID‐19 vaccination. Five of the nine patients had outdoor‐related disease. During the Paralympics Games, no Olympians visited the clinic, and three volunteers were treated at the clinic for spectators. All had outdoor‐related diseases and returned to work after treatment. There were no confirmed cases of COVID‐19 among individuals who attended the Olympic cycling track during the Tokyo 2020 Olympics and Paralympics.ConclusionsThe present study showed the results of activities of the two clinics for the Olympics and Paralympics. Both medical clinics were necessary for the safe operation of the Olympics and Paralympics.
Experimental study of metal‐oxide nanoparticles on the thermal properties of erythritol for thermal energy storage
Authors: Zhou Hao , Lv Laiquan , Ji Mengting , Zhang Yize , Cheng Fangzheng , Cen Kefa 
Published: February 2022

AbstractErythritol has attracted wide attention due to high latent heat of 297.2 kJ/kg and excellent chemical stability as a medium‐ to low‐temperature thermal energy storage (TES) material. However, low thermal conductivity leads to extended charging and discharging time and severely affects its large‐scale application. In this article, three cheap nanoparticles (CuO, Al2O3, and Fe2O3) and triethanolamine (TEA) were used as heat transfer enhancers and dispersant to improve the TES performance of erythritol. Sedimentation of nanoparticles in erythritol indicates that TEA is an effective dispersant in erythritol for three kinds of nanoparticles. The experimental results show that the thermal conductivity increased from 0.671 W/(m·K) of erythritol to 0.722 W/(m·K) and 0.761 W/(m·K) of 1.5 wt% CuO and Fe2O3 nano‐enhanced phase change materials (NePCMs), respectively. Based on the DSC results, the melting temperature and heat of fusion of NePCMs stayed stable with nanoparticles but increased significantly after adding TEA. Furthermore, the charging/discharging cyclic behaviors of NePCMs were tested in the cycle test platform. During the cycle test, the melting time of 1.5 wt% CuO NePCM decreased from 657.9 s for pure erythritol to 615.8 s but increased to 757 s and 680.6 s for 1.5 wt% Al2O3 and 1.5 wt% Fe2O3 NePCMs. The solidification time decreased from 311.2 s for erythritol to 179.3 s, 198.5 s, and 132.4 s for 1.5 wt% CuO, 1.5 wt% Al2O3, and 1.5 wt% Fe2O3 NePCMs. Interestingly, the supercooling degree of NePCMs we got from the test was much lower than that from the DSC curves, indicating that the supercooling is related to the sample size. These results testify that CuO and Fe2O3 nanoparticles can improve the thermal conductivity of erythritol effectively.
Synthesis of eugenol‐based monomers for sustainable epoxy thermoplastic polymers
Authors: Kouznetsov Vladimir V. , Vargas Méndez Leonor Y. 
Published: February 2022

AbstractNew developments in thermosets based on bioproducts are gaining significance due to the importance of replacing thermosets and their monomers, traditionally obtained from petrochemical processes, with biobased thermosets prepared from biomass. In the context of new BPA/DGEBA replacements with both enhanced performance and reduced toxicity and the development of innovative biobased thermosetting resins, the conversion of plant biomass, especially natural phenols, into useful polymeric materials is believed to have considerable environmental and economic value. Eugenols are receiving encouraging interest, not only due to their sourcing but also due to their structure and chemical properties, which could enhance the physical characteristics of thermosetting materials, and which could reduce their toxic effects on the environment and human health. The present review mainly focuses on the utilization of eugenol for the synthesis of biobased epoxy and its thermosetting resins, describing synthetic details of new designs for eugenol‐based monomer and/or additive component preparation that are conducive to the formation of eugenol‐containing polymeric materials. Synthetic methods for eugenol‐based monomers are classified according to the principles of green chemistry and are divided into three large groups: single reactions, consecutive reactions, and multicomponent reactions. Outstanding physical characteristics of the formulated eugenol‐based thermosetting epoxy materials are also described.
Subgroup formation in human–robot teams: A multi‐study mixed‐method approach with implications for theory and practice
Authors: You Sangseok , Robert Lionel P. 
Published: February 2022

AbstractHuman–robot teams represent a challenging work application of artificial intelligence (AI). Building strong emotional bonds with robots is one solution to promoting teamwork in such teams, but does this come at a cost in the form of subgroups? Subgroups—smaller divisions within teams—in all human teams can undermine teamwork. Despite the importance of this question, it has received little attention. We employed a mixed‐methods approach by conducting a lab experiment and a qualitative online survey. We (a) examined the formation and impact of subgroups in human–robot teams and (b) obtained insights from workers currently adapting to robots in the workplace on mitigating impacts of subgroups. The experimental study (Study 1) with 44 human–robot teams found that robot identification (RID) and team identification (TID) are associated with increases and decreases in the likelihood of a subgroup formation, respectively. RID and TID moderated the impacts of subgroups on teamwork quality and subsequent performance in human–robot teams. Study 2 was a qualitative study with 112 managers and employees who worked collaboratively with robots. We derived practical insights from this study that help situate and translate what was learned in Study 1 into actual work practices.
Rebirth of the translational machinery: The importance of recycling ribosomes
Authors: Young David J. , Guydosh Nicholas R. 
Published: February 2022

AbstractTranslation of the genetic code occurs in a cycle where ribosomes engage mRNAs, synthesize protein, and then disengage in order to repeat the process again. The final part of this process—ribosome recycling, where ribosomes dissociate from mRNAs—involves a complex molecular choreography of specific protein factors to remove the large and small subunits of the ribosome in a coordinated fashion. Errors in this process can lead to the accumulation of ribosomes at stop codons or translation of downstream open reading frames (ORFs). Ribosome recycling is also critical when a ribosome stalls during the elongation phase of translation and must be rescued to allow continued translation of the mRNA. Here we discuss the molecular interactions that drive ribosome recycling, and their regulation in the cell. We also examine the consequences of inefficient recycling with regards to disease, and its functional roles in synthesis of novel peptides, regulation of gene expression, and control of mRNA‐associated proteins. Alterations in ribosome recycling efficiency have the potential to impact many cellular functions but additional work is needed to understand how this regulatory power is utilized.
Disease mapping method comparing the spatial distribution of a disease with a control disease
Authors: Petrof Oana , Neyens Thomas , Vranckx Maren , Nuyts Valerie , Nemery Benoit , Nackaerts Kristiaan , Faes Christel 
Published: February 2022

AbstractSmall‐area methods are being used in spatial epidemiology to understand the effect of location on health and detect areas where the risk of a disease is significantly elevated. Disease mapping models relate the observed number of cases to an expected number of cases per area. Expected numbers are often calculated by internal standardization, which requires both accurate population numbers and disease rates per gender and/or age group. However, confidentiality issues or the absence of high‐quality information about the characteristics of a population‐at‐risk can hamper those calculations. Based on methods in point process analysis for situations without accurate population data, we propose the use of a case‐control approach in the context of lattice data, in which an unrelated, spatially unstructured disease is used as a control disease. We correct for the uncertainty in the estimation of the expected values, which arises by using the control‐disease's observed number of cases as a representation of a fraction of the total population. We apply our methods to a Belgian study of mesothelioma risk, where pancreatic cancer serves as the control disease. The analysis results are in close agreement with those coming from traditional disease mapping models based on internally standardized expected counts. The simulation study results confirm our findings for different spatial structures. We show that the proposed method can adequately address the problem of inaccurate or unavailable population data in disease mapping analysis.
Causes of mortality in elderly UICC stage III colon cancer (CC) patients––Tumor‐related death and competing risks from the German AIO colorectal study group Colopredict Plus (CPP) registry
Authors: Nöpel‐Dünnebacke Stefanie , Jütte Hendrick , Denz Robin , Feder Inke Sabine , Kraeft Anna‐Lena , Lugnier Celine , Teschendorf Christian , Collette Daniela , Böhner Hinrich , Engel Lars , Mueller Lothar , Hartmann Frank , Kaiser Ulrich , Bruch Harald‐Robert , Hollerbach Stephan , Arnold Dirk , Timmesfeld Nina , Tannapfel Andrea , Reinacher‐Schick Anke 
Published: February 2022

AbstractBackgroundColon cancer (CC) is a disease of elderly patients (pts.) with a median age of 73 years (yrs.). Lack of data about the effects of adjuvant chemotherapy (ACT) is caused by underrepresentation of this clinically relevant cohort in interventional trials. We analyzed real‐world data from the German CPP registry with regard to a possible benefit of ACT in elderly (70+ yrs.) versus younger pts. (50 to <70 yrs.) taking cause‐specific deaths into account.MethodsWe analyzed the effect of age and ACT on overall survival (OS) and cause‐specific death of stage III pts. using Cox regression.ResultsIn total, 1558 pts. were analyzed and follow‐up was 24.6 months. 62.6% of the elderly received ACT whereas 91.1% of younger pts. (p < 0.001). Oxaliplatin combinations were significantly less often given to older than younger pts. (38.8% vs. 88.9%; p < 0.001). Mean Charlson comorbidity score was significantly lower in pts. that received ACT (0.61) than in those without ACT (1.16; p < 0.001). ACT was an independent positive prognostic factor for cancer‐related death in elderly pts. even in pts. 75+ yrs. No significant difference in the effect of ACT could be observed between age groups (interaction: cancer‐specific death HR = 1.7948, p = 0.1079; death of other cause HR = 0.7384, p = 0.6705).ConclusionACT was an independent positive prognostic factor for OS. There may be a cohort of elderly with less co‐morbidities who benefit from ACT.