bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Preparation and Modification of Strontium Titanate Ceramic Films for High‐Performance Flexible Supercapacitor
Authors: Cao Yi , He Huang , Li Shijingmin , Ruan Piao , Yi Jianglong , Qiu Wenfeng 
Published: January 2023

AbstractBased on previous research, the perovskite‐type SrTiO3 can be considered as a potential energy storage material because of its good electrical conductivity properties and oxygen‐vacancy structure. In this work, Ce‐doped SrTiO3 nanofibers film with excellent flexibility was successfully fabricated by using electrospinning and conventional sintering route at 600 °C. For the series of the SrCexTi1‐xO3 (SCTO‐x) films (0≤x≤0.5), although the corresponding nanofibers structure could remain intact, their lattice structure transferred from cubic into tetragonal phase with the increase of Ce doing amount. Moreover, the electrochemical measurement results shown that the working electrode fabricated by SCTO‐0.3 sample as active materials exhibited the best electrochemical performance possessing with a maximum specific capacitance value of 2895 mF ⋅ cm−2 at 3 mA ⋅ cm−2 (1809.4F ⋅ g−1 at 1.875 A ⋅ g−1).Therefore, a symmetrical flexible device was assembled by two SCTO‐0.3 electrodes with 1 M Na2SO4 solution, showing a good energy density of 89.5 Wh ⋅ kg−1 (at power density of 1250 W ⋅ kg−1). However, while the super‐concentrated electrolyte (1 M Na2SO4+66.7 wt % sucrose) was instead of the 1 M Na2SO4 solution in the fabrication of the device, it could display higher energy density (151 Wh ⋅ kg−1 vs. 1600 W ⋅ kg−1), good cycling stability and better mechanical flexibility. Herein, this work may provide a new potential electrode material for flexible energy storage device design.
An Air‐ and Moisture‐stable Zinc(II) Carbene Dithiolate Dimer Showing Fast Thermally Activated Delayed Fluorescence and Dexter Energy Transfer Catalysis**
Authors: Mrózek Ondřej , Mitra Mousree , Hupp Bejamin , Belyaev Andrey , Lüdtke Nora , Wagner Dorothee , Wang Cui , Wenger Oliver S. , Marian Christel M. , Steffen Andreas 
Published: January 2023

AbstractA dimeric ZnII carbene complex featuring bridging and chelating benzene‐1,2‐dithiolate ligands is highly stable towards air and water. The donor‐Zn‐acceptor structure leads to visible light emission in the solid state, solution and polymer matrices with λmax between 577–657 nm and, for zinc(II) complexes, unusually high radiative rate constants for triplet exciton decay of up to kr=1.5×105 s−1 at room temperature. Variable temperature and DFT/MRCI studies show that a small energy gap between the 1/3LL/LMCT states of only 79 meV is responsible for efficient thermally activated delayed fluorescence (TADF). Time‐resolved luminescence and transient absorption studies confirm the occurrence of long‐lived, dominantly ligand‐to‐ligand charge transfer excited states in solution, allowing for application in Dexter energy transfer photocatalysis.
DFT‐based Machine Learning for Ensemble Effect of Pd@Au Electrocatalysts on CO2 Reduction Reaction
Authors: Liu Fuzhu , Gao Peng‐Fei , Wu Chao , Yang Shengchun , Ding Xiangdong 
Published: January 2023

AbstractThe ensemble effect due to variation of Pd content in Pd−Au alloys have been widely investigated for several important reactions, including CO2 reduction reaction (CO2RR), however, identifying the stable Pd arrangements on the alloyed surface and picking out the active sites are still challenging. Here we use a density functional theory (DFT) based machine‐learning (ML) approach to efficiently find the low‐energy configurations of Pd−Au(111) surface alloys and the potentially active sites for CO2RR, fully covering the Pd content from 0 to 100 %. The ML model is actively learning process to improve the predicting accuracy for the configuration formation energy and to find the stable Pd−Au(111) alloyed surfaces, respectively. The local surface properties of adsorption sites are classified into two classes by the K‐means clustering approach, which are closely related to the Pd content on Au surface. The classification is reflected in the variation of adsorption energy of CO and H: In the low Pd content range (0–60 %) the adsorption energies over the surface alloys can be tuned significantly, and in the medium Pd content (37‐68 %), the catalytic activity of surface alloys for CO2RR can be increased by increase the Pd content and attributed to the meta‐stable active site over the surface. Thus, the active site‐dependent reaction mechanism is elucidated based on the ensemble effect, which provides new physical insights to understand the surface‐related properties of catalysts.
Ankle flexor/extensor strength and muscle density are complementary determinants of balance during dual‐task engagement: The ankle quality study
Authors: Wong Andy K. O. , Fung Hugo J. W. , Pretty Steven P. , Laing Andrew C. , Chan Adrian H. , Mathur Sunita , Zabjek Karl , Giangregorio Lora , Cheung Angela M. 
Published: January 2023

AbstractBackgroundThis study investigated relative contributions of ankle flexor torque, muscle size, and density on balance and falls.MethodsMen and women ≥50 years of age completed a peripheral quantitative computed tomography scan of the mid‐leg to quantify muscle density (MD) and cross‐sectional area; Biodex dynamometry to evaluate maximal isometric ankle flexor torque; and a single‐leg balance test on a force platform with/without eyes closed and cognitive task. Ankle flexor torque, muscle size, and density individually, together, or as interactions were examined for associations with balance (mean step duration, steps/trial) in general linear models, or with falls in Poisson regression, adjusting for age, sex, BMI, glucocorticoid use, osteoarthritis, and physical activity. Visuo‐cognitive conditions were compared.ResultsAmong 105 participants (age: 63.3 ± 9.9 years, BMI: 25.8 ± 5.4 kg/m2, 77.1% female), 41.8% experienced ≥1 fall in the last year. Balance on one leg was dependent on ankle flexor torque when eyes were open (r = −0.220 to −0.284) and on having leaner mid‐leg muscles when eyes were closed (r = −0.123 to −0.142); cognitive challenge blunted these correlations. Individuals with leaner muscles tended to rely more on plantarflexors than dorsiflexors. A 2% lower step‐free fraction in the eyes‐closed paradigm associated with having 1 additional fall [−0.701(−1.235, −0.167)], but neither torque, muscle density, nor size related to number of falls.ConclusionsAmong ambulatory adults, ankle flexor torque and muscle density showed an interactive influence on balance that depended on visuo‐cognitive input. The complementary roles of torque and muscle density on balance suggest redundancy is important under dual‐tasking conditions.
Climatic stress decreases tick survival but increases rate of host‐seeking behavior
Authors: Nielebeck Caleb , Kim Sang Hyo , Pepe Antonio , Himes Lucian , Miller Zachary , Zummo Sophia , Tang Mary , Monzón Javier D. 
Published: January 2023

AbstractTicks are vectors of many diseases and are expanding in geographic distribution. However, how ticks will fare in their new environments, where they may experience stressful climatic conditions at the expansion front, remains unclear. Since there is a trade‐off in ticks between behaviors that promote longevity and behaviors that promote reproduction, we hypothesized that extreme climatic stress reduces the survivorship of ticks but increases the frequency of tick host‐seeking behavior, or questing. Here, we used a novel method to simulate climatic stress on individual ticks of three species—Amblyomma americanum, Dermacentor variabilis, and Ixodes scapularis—to evaluate their survival, physiology, and questing behavior. The first experiment involved placing 144 adult ticks of each species in two temperature ranges (15–25°C and 25–35°C) and three relative humidity (RH) treatments (32%, 58%, and 84% RH). We assessed the ticks daily for survivorship and questing, and we measured water loss by comparing the mass of each tick when it died to when it was fully hydrated. In this first experiment, ticks in warmer and less humid conditions generally died faster than those in cooler and more humid conditions. Ticks of all three species were more likely to quest shortly before their death and consistently died after losing approximately 50%–56% of their total body water content, but Ixodes reached that threshold much faster than the other two species. The second experiment involved placing 18 ticks of each species at 35°C and 32% RH. We assessed the ticks every 3 h for survivorship, questing, and water loss. Ticks again were more likely to quest shortly before their death. With frequent checks, we were able to measure the dehydration tolerance more accurately and the rate of water loss. Ticks of all three species consistently died after losing approximately 51% of their total body water content. However, Ixodes lost water approximately 5 times faster than Amblyomma and 11 times faster than Dermacentor. These results demonstrate that severe climatic stress tilts the trade‐off toward higher questing rates but not higher overall questing time because of reduced survival rates.
Natural antioxidants from some fruits, seeds, foods, natural products, and associated health benefits: An update
Authors: Rahaman Md. Mizanur , Hossain Rajib , Herrera‐Bravo Jesús , Islam Mohammad Torequl , Atolani Olubunmi , Adeyemi Oluyomi Stephen , Owolodun Olubukola Abibat , Kambizi Learnmore , Daştan Sevgi Durna , Calina Daniela , Sharifi‐Rad Javad 
Published: January 2023

AbstractAntioxidants are compounds that inhibit the oxidation of other molecules and protect the body from the effects of free radicals, produced either by normal cell metabolism or as an effect of pollution and exposure to other external factors and are responsible for premature aging and play a role in cardiovascular disease. degenerative diseases such as cataracts, Alzheimer's disease, and cancer. While many antioxidants are found in nature, others are obtained in synthetic form and reduce oxidative stress in organisms. This review highlights the pharmacological relevance of antioxidants in fruits, plants, and other natural sources and their beneficial effect on human health through the analysis and in‐depth discussion of studies that included phytochemistry and their pharmacological effects. The information obtained for this review was collected from several scientific databases (ScienceDirect, TRIP database, PubMed/Medline, Scopus, Web of Science), professional websites, and traditional medicine books. Current pharmacological studies and evidence have shown that the various natural antioxidants present in some fruits, seeds, foods, and natural products have different health‐promoting effects. Adopting functional foods with high antioxidant potential will improve the effective and affordable management of free radical diseases while avoiding the toxicities and unwanted side effects caused by conventional medication.
Scientific and targeted prevention and control measures to optimize COVID‐19 response
Authors:   Released by the Taskforce for Joint Prevention and Control Mechanism for COVID‐19 under the State Council and the National Health Commission of P.R. China on November 11, 2022
Published: January 2023

AbstractSince the outbreak of the COVID‐19 pandemic, under the strong leadership of the Central Committee of the Communist Party of China and President Xi Jinping, China has made firm decisions to prioritize people's lives and health. Efforts have been made to avoid foreign imported infection and domestic rebound of COVID‐19 cases; the “dynamic zero COVID” policy has been executed without wavering; and the prevention and control measures have been optimized and improved in response to changing circumstances, actively responding to the impact caused by multiple waves of COVID‐19 surge globally. China has made extraordinary efforts to safeguard people's lives and health. Meanwhile, prevention and control measures were timely updated to coordinate with economic and social development. On November 10, the Standing Committee of the Central Political Bureau held a meeting to discuss the latest situation of the COVID‐19 pandemic in China. Twenty measures (referred to as “the 20‐point measures“) were officially announced to further optimize the COVID‐19 response. The latest prevention and control measures involve the requirements and guidance for isolation at home, high‐risk area delineation, nucleic acid testing, international inbound flights and travelers, vaccination rollout, medical resource preparedness, and protection for special places and vulnerable population.
Improved assessment of fecal incontinence in women with previous obstetric injury combining Low Anterior Resection Syndrome and Wexner scores
Authors: Almkvist Louise , Gunnarsson Ulf , Strigård Karin 
Published: January 2023

AbstractObjectiveThe aim of the current study was to assess whether Low Anterior Resection Syndrome (LARS) score could provide additional unique information to the Wexner score when assessing fecal incontinence (FI) in women with previous obstetric injury, thus providing a better foundation for treatment decisions.MethodsThis was a retrospective cohort study with intraindividual comparison of two scoring systems. Women with previous obstetric injury and diagnosed with FI between January 1, 2015, and December 31, 2018, with valid LARS and Wexner scores were included. Statistical methods used were Spearman rank correlation, Kendall τ, scatterplot, and ratios.ResultsSeventy women were included. Correlation coefficients varied from 0.42 to 0.66 (Spearman rank correlation) and 0.44 to 0.51 (Kendall τ). Cohen κ values varied from 0.33 to 0.67. No strong association was seen in the correlation analyses or the scatterplot.ConclusionLARS score was shown to provide extra relevant information when assessing FI in women with previous obstetric injury. All symptoms should be considered relevant when assessing FI since it is a complex condition and should be approached accordingly. The authors suggest a combination of LARS and Wexner scores when assessing FI among women with previous obstetric injury.
Eigenvalues and cycles of consecutive lengths
Authors: Li Binlong , Ning Bo 
Published: January 2023

AbstractAs the counterpart of classical theorems on cycles of consecutive lengths due to Bondy and Bollobás in spectral graph theory, Nikiforov proposed the following open problem in 2008: What is the maximum such that for all positive and sufficiently large , every graph of order with spectral radius contains a cycle of length for each integer . We prove that , improving the existing bounds. Besides several novel ideas, our proof technique is partly inspired by the recent research on Ramsey numbers of star versus large even cycles due to Allen, Łuczak, Polcyn, and Zhang, and with aid of a powerful spectral inequality. We also derive an Erdős–Gallai‐type edge number condition for even cycles, which may be of independent interest.
Isolation and characterization of mammalian orthoreovirus from bats in the United States
Authors: Wang Liping , Zheng Baoliang , Shen Zhenyu , Nath Nirmalendu Deb , Li Yonghai , Walsh Timothy , Li Yan , Mitchell William J. , He Dongchang , Lee Jinhwa , Moore Susan , Tong Suxiang , Zhang Shuping , Ma Wenjun 
Published: January 2023

AbstractMammalian orthoreovirus (MRV) infects many mammalian species including humans, bats, and domestic animals. To determine the prevalence of MRV in bats in the United States, we screened more than 900 bats of different species collected during 2015–2019 by a real‐time reverse‐transcription polymerase chain reaction assay; 4.4% bats tested MRV‐positive and 13 MRVs were isolated. Sequence and phylogenetic analysis revealed that these isolates belonged to four different strains/genotypes of viruses in Serotypes 1 or 2, which contain genes similar to those of MRVs detected in humans, bats, bovine, and deer. Further characterization showed that these four MRV strains replicated efficiently on human, canine, monkey, ferret, and swine cell lines. The 40/Bat/USA/2018 strain belonging to the Serotype 1 demonstrated the ability to infect and transmit in pigs without prior adaptation. Taken together, this is evidence for different genotypes and serotypes of MRVs circulating in US bats, which can be a mixing vessel of MRVs that may spread to other species, including humans, resulting in cross‐species infections.
Effect of environment and variety on the physicochemical properties of Tartary buckwheat starch
Authors: Wang Jiale , Wu Yixin , Han Mengru , Lei Xinhui , Leng Jiajun , Yang Qinghua , Yang Pu , Gao Jinfeng 
Published: January 2023

AbstractBACKGROUNDStarch is a major nutrient in the human diet and has been widely used as an ingredient in many food and non‐food applications. However, the research on the quality characteristics of Tartary buckwheat is lagging behind, and there is a lack of high‐quality special varieties, which makes it difficult to become a popular food. The physicochemical properties of Tartary buckwheat starch may be affected by different environments and varieties, and the stability of planted varieties in different regions is also an important issue in current research.RESULTSThe average amylose content and pasting properties of Dingxi Tartary buckwheat were lower, while the solubility, transparency, relative crystallinity and gelatinization enthalpy were higher compared with the other two regions, and there were significant differences between different varieties. All samples showed typical A‐type structure, and the starch short‐range order structure changed slightly. Amylose content, solubility, transparency, granule size distribution, pasting properties and thermal properties were significantly affected by environment and variety.CONCLUSIONWhen choosing high‐quality special varieties and products for processing, it contributes to select different buckwheat varieties and planting areas based on various objectives by understanding the effects of environment and varieties on the physicochemical properties of Tartary buckwheat starch. In this study, the four varieties planted in Dingxi and the two varieties in Zhaojue were easy to digest, and the differences of pasting properties and thermal properties are helpful to improve the application of Tartary buckwheat starch in the food industry. © 2023 Society of Chemical Industry.
Evaluation of instrumentation and pedicle screw design for posterior lumbar fixation: A pre‐clinical in vivo/ex vivo ovine model
Authors: Witek Lukasz , Parente Paulo Eduardo Lima , Torroni Andrea , Greenberg Michael , Nayak Vasudev Vivekanand , Hacquebord Jacques Henri , Coelho Paulo G. 
Published: January 2023

AbstractBackgroundStabilization procedures of the lumbar spine are routinely performed for various conditions, such as spondylolisthesis and scoliosis. Spine surgery has become even more common, with the incidence rates increasing ~30% between 2004 and 2015. Various solutions to increase the success of lumbar stabilization procedures have been proposed, ranging from the device's geometrical configuration to bone quality enhancement via grafting and, recently, through modified drilling instrumentation. Conventional (manual) instrumentation renders the excavated bony fragments ineffective, whereas the “additive” osseodensification rotary drilling compacts the bone fragments into the osteotomy walls, creating nucleating sites for regeneration.MethodsThis study aimed to compare both manual versus rotary Osseodensification (OD) instrumentation as well as two different pedicle screw thread designs in a controlled split animal model in posterior lumbar stabilization to determine the feasibility and potential advantages of each variable with respect to mechanical stability and histomorphology. A total of 164 single thread (82 per thread configuration), pedicle screws (4.5 × 35 mm) were used for the study. Each animal received eight pedicles (four per thread design) screws, which were placed in the lumbar spine of 21 adult sheep. One side of the lumbar spine underwent rotary osseodensification instrumentation, while the contralateral underwent conventional, hand, instrumentation. The animals were euthanized after 6‐ and 24‐weeks of healing, and the vertebrae were removed for biomechanical and histomorphometric analyses. Pullout strength and histologic analysis were performed on all harvested samples.ResultsThe rotary instrumentation yielded statistically (p = 0.026) greater pullout strength (1060.6 N ± 181) relative to hand instrumentation (769.3 N ± 181) at the 24‐week healing time point. Histomorphometric analysis exhibited significantly higher degrees of bone to implant contact for the rotary instrumentation only at the early healing time point (6 weeks), whereas bone area fraction occupancy was statistically higher for rotary instrumentation at both healing times. The levels of soft tissue infiltration were lower for pedicle screws placed in osteotomies prepared using OD instrumentation relative to hand instrumentation, independent of healing time.ConclusionThe rotary instrumentation yielded enhanced mechanical and histologic results relative to the conventional hand instrumentation in this lumbar spine stabilization model.
Risk Factors of Contrast Agent Intravasation With Sulfur Hexafluoride Microbubble During Hysterosalpingo‐Contrast Sonography
Authors: Jin Bin‐Bin , Ma Yan , Zhao Xiu‐Hua , Teng Yi‐Ling , Zhu Shang‐Yong 
Published: January 2023

ObjectivesTo analyze the risk factors of sulfur hexafluoride microbubble contrast agent intravasation during hysterosalpingo‐contrast sonography (HyCoSy), and to explore a simple prediction model by the obvious clinical history.MethodsThis was a retrospective study included 299 infertility women who had undergone HyCoSy examination from July 1, 2018 to June 31, 2019. The factors were recorded, including age, endometrial thickness, balloon length, infertility type, history of intrauterine surgery, history of pelvic surgery, and tubal patency. The method of multivariate logistic regression analysis was adopted to analyze the risk factors affecting the contrast agent intravasation, and the receiver operating characteristic curves were plotted to test their efficacy.ResultsSecondary infertility, a history of intrauterine surgery, thin endometrial thickness, and tubal obstruction were all risk factors of the occurrence of intravasation (P < .05). And the area under the receiver operating characteristic curves of the multifactor‐combined prediction model of the intravasation was significantly larger than that of single‐factor.ConclusionsSonographers and gynecologists should be familiar with the risk factors of intravasation and select the appropriate timing of HyCoSy toward reducing the occurrence of intravasation and other complications after thoroughly explaining and communicating with the patients.