174 results on '"Xinxin S"'
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52. Identification of Growth Strata: New Insights From Anisotropy Corrected Paleomagnetic Data
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Xinxin Sun, Yabo Tong, Zhenyu Yang, Junling Pei, Zijian Zhang, and Lifu Hou
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Miocene ,growth strata ,paleomagnetic inclination deviation ,anisotropy of magnetic susceptibility ,paleomagnetism ,Geophysics. Cosmic physics ,QC801-809 - Abstract
Abstract Growth strata are important for understanding regional tectonic evolution. However, it is difficult to identify growth strata in the field, because of subsequent intensive modification and erosion. To address this problem, we studied two paleomagnetic sections at the stable deposition setting and the growth end of the Miocene growth strata of the Gengma Basin. Average inclinations of the two sections show a systematic deviation of 4.7° ± 5.2°. The anisotropy of magnetic susceptibility results for the growth end of the section A demonstrate a sedimentary fabric. However, the tilt‐corrected K3 axis deviates to the southwest from the normal direction of the bedding by 5.4° ± 3.8°, the magnetic foliation deviates to the equatorial plane by 5.3° ± 4.7°. The K3 axis is perpendicular to the bedding at the stable deposition setting. The deviation of the K3 axis from the normal direction of bedding is interpreted as the growth angle, which can be used to correct the paleomagnetic inclination data.
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- 2023
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53. Knockout of OsWRKY71 impairs Bph15-mediated resistance against brown planthopper in rice
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Xiaozun Li, Jian Zhang, Xinxin Shangguan, Jingjing Yin, Lili Zhu, Jie Hu, Bo Du, and Wentang Lv
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rice ,brown planthopper ,Bph15 ,OsWRKY71 ,defense mechanism ,transcriptome ,Plant culture ,SB1-1110 - Abstract
The Bph15 gene, known for its ability to confer resistance to the brown planthopper (BPH; Nilaparvata lugens Stål), has been extensively employed in rice breeding. However, the molecular mechanism by which Bph15 provides resistance against BPH in rice remains poorly understood. In this study, we reported that the transcription factor OsWRKY71 was highly responsive to BPH infestation and exhibited early-induced expression in Bph15-NIL (near-isogenic line) plants, and OsWRKY71 was localized in the nucleus of rice protoplasts. The knockout of OsWRKY71 in the Bph15-NIL background by CRISPR-Cas9 technology resulted in an impaired Bph15-mediated resistance against BPH. Transcriptome analysis revealed that the transcript profiles responsive to BPH differed between the wrky71 mutant and Bph15-NIL, and the knockout of OsWRKY71 altered the expression of defense genes. Subsequent quantitative RT-PCR analysis identified three genes, namely sesquiterpene synthase OsSTPS2, EXO70 family gene OsEXO70J1, and disease resistance gene RGA2, which might participate in BPH resistance conferred by OsWRKY71 in Bph15-NIL plants. Our investigation demonstrated the pivotal involvement of OsWRKY71 in Bph15-mediated resistance and provided new insights into the rice defense mechanisms against BPH.
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- 2023
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54. Near-infrared photothermal dual crosslinking strategy for precise and efficient direct ink writing of high solids ceramic slurries
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Yongqin Zhao, Guohong Shi, Jia-Tao Miao, Xinxin Sang, and Ren Liu
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High solid content ,Ceramic slurry ,Near-infrared up-conversion ,Direct ink writing ,Photothermal synergy ,In-situ curing ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
During the ceramic photocuring 3D printing process, the penetration ability of incident light is hindered by the extinction effects of ceramic powders in ceramic slurry. This limitation in light penetration negatively impacts printing efficiency, especially in ceramic slurries with high solid contents. In this work, an in-situ photothermal dual crosslinking strategy, which capitalizes on the combined benefits of near-infrared photothermal energy, was proposed to realize precise and efficient direct ink writing of high solids ceramic slurries. The in-situ curing of ceramic slurries with an alumina content of up to 90 wt% (74.5 vol%) was successfully achieved by integrating photochemical and photothermal crosslinking strategies to recycle excess heat to enhance the energy utilization of near-infrared light. Under near-infrared irradiation (538.25 W/cm2, 3 s), the high solids ceramic photothermal dual curing slurry achieved a curing depth of 2.79 mm, which improved the printing rate and printing throughput compared with the photocuring slurry (2.34 mm) and the thermocuring slurry (0.98 mm). The sintered samples showed a sinter shrinkage of 8.85 % and relative density of 95.08 %. This method has great potential for application in the manufacturing of thick composite materials and high solid content slurry printing.
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- 2023
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55. Studying Brown Ocean Re‐Intensification of Hurricane Florence Using CYGNSS and SMAP Soil Moisture Data and a Numerical Weather Model
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Zhi Li, Alka Tiwari, Xinxin Sui, James Garrison, Frank Marks, and Dev Niyogi
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Brown ocean effect ,storm re‐intensification ,SMAP ,CYGNSS ,Geophysics. Cosmic physics ,QC801-809 - Abstract
Abstract Hurricane Florence made landfall over the Carolinas 14 September 2018, bringing over 30 inches of rainfall. What remains understudied is the possible storm re‐intensification by wet and warm antecedent soil moisture (ASM), known as the Brown Ocean Effect (BOE). This study investigates this effect with two approaches: (a) two satellite‐based soil moisture (SM) data and (b) model simulation. The averaged Cyclone Global Navigation System and Soil Moisture Active Passive SM enables examination of land‐atmosphere interaction at a sub‐daily scale. Both observations and simulation results manifest positive feedback between ASM and rainfall intensity, with 3 days prior to landfall being the typical antecedent time scale. Wet (dry) ASM lead to intense (light) and concentrated (widespread) rains. We also found that soil temperature can modulate the BOE. This study aims to advance our understanding of land‐atmosphere feedback and calls to acquire accurate antecedent land states to enhance forecast skills.
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- 2023
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56. U.S. States’ COVID-19 physical distancing policies and working-age adult mental health outcomes
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Shannon M. Monnat, David C. Wheeler, Emily Wiemers, Yue Sun, Xinxin Sun, Douglas A. Wolf, and Jennifer Karas Montez
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COVID-19 ,State policies ,Mental health ,Stay-at-home orders ,Working-age adults ,Medicine - Abstract
In the early months of the COVID-19 pandemic, states enacted multiple policies to reduce in-person interactions. Scholars have speculated that these policies may have contributed to adverse mental health outcomes. This study examines potential associations between states’ COVID-19 physical distancing policies and working-age (18–64) adults’ self-reported mental health. Mental health outcomes (depression, anxiety, worsened mental health, and sought treatment for anxiety or depression) are from the National Wellbeing Survey collected from working-age adults in the United States (U.S.) February 1 to March 18, 2021 (N = 3,804). Data on 12 state policies are from the COVID-19 U.S. State Policy Database. Analyses included logistic regression and Bayesian group index modeling, which identified sets, or “bundles,” of policies that were associated with each mental health outcome. Multiple policies (both separately and in bundles) were associated with adverse mental health outcomes, with certain policies (closures and curfews on retail and other businesses) being particularly important. A one-month increase in exposure to respective model-derived physical distancing policy bundles was associated with a 36% increase in the odds of reporting that COVID-19 worsened one’s mental health (odds ratio [OR] = 1·36; 95% credible interval [CRI] = 1·01 to 1·80), a 6% increase in the odds of meeting the clinical threshold for anxiety (OR = 1·06; CRI = 0·99 to 1·16), and a 15% increase in the odds of seeking treatment for anxiety or depression (OR = 1·15; CRI = 1·02 to 1·49). To accurately understand the role of states’ COVID-19 policies on mental health during the pandemic, researchers must consider how collections of policies might influence outcomes.
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- 2023
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57. The relative age effect on fundamental movement skills in Chinese children aged 3–5 years
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Kai Li, Sitong Chen, Jiani Ma, Clarice Martins, Michael Duncan, Xinxin Sheng, Shijie Liu, and Yujun Cai
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Motor development ,Preschool children ,FMS ,RAE ,Pediatrics ,RJ1-570 - Abstract
Abstract Background The cut-off date in the education system causes a relative age difference, with developmental advantages for children who are born on the “early side” of the cut-off date and disadvantages for those born later, which is known as the relative age effect (RAE). Very few studies have examined whether there is a RAE on the development of fundamental movement skills (FMSs) in preschool children, and no studies have been conducted in China. The purpose of this study is to identify whether a RAE exists on FMS in Chinese preschool children, comparing RAEs according to gender and age. Methods From a total of 378 invited preschool children regularly registered at one Chinese kindergarten, a total of 288 healthy and typically developing preschoolers (4.33 ± 0.84 years-old; 56.6% boys) were included in this study. All children were required to take part in anthropometry and FMS assessments. Analysis of covariance (ANCOVA) was applied to examine the difference in each of the FMS items across quarter categories, year and gender groups, controlling for body mass index (BMI). Results For the overall sample, the data show the significant main effects on the quarter of birth factor in locomotor skills (LC; F (3, 265) = 2.811, p = 0.04, ηp 2 = 0.031), object control skills (OB; F (3, 265) = 6.319, p = 0.04, ηp 2 = 0.031), and total test score (TTS; F (3, 265) = 5.988, p = 0.001, ηp 2 = 0.063). There were also significant differences in the age effect on all the domains of FMS (F LC (2, 265) = 100.654, p
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- 2023
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58. Optimization on Extraction Technology and Component Analysis of Wax from Munage Grapes Pericarp
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Yufei WANG, Yunhao LÜ, Xinxin SONG, and Ying JIANG
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munage grape ,cuticular wax ,extraction process ,response surface methodology ,wax composition ,Food processing and manufacture ,TP368-456 - Abstract
Cuticular wax is one of the important factors affecting the storability of fruits and vegetables. Thus, Munage grape was used as material in this study, and response surface methodology was used to optimize the process parameters of extracting cuticular wax from grapes by soaking in organic solvent. At the same time, the components and content of the cuticular wax were identified and analyzed by gas chromatography-mass spectrometry (GC-MS). The results showed that on the basis of single factor, the optimum conditions of wax extraction optimized by response surface methodology were as follows: The mixing ratio of dichloromethane and hexane was 3:1 mL/mL, the liquid-solid ratio was 2:1 mL/g, and the extraction time was 7.5 min. Under the optimal extraction conditions, the wax extraction amount was 43.60±1.04 mg/100 g, which was 0.98% difference from the predicted value of response surface. A total of 61 compounds were identified in epidermal wax, including 13 kinds of fatty acids, 13 kinds of hydrocarbon compounds, 10 kinds of alcohols, 9 kinds of esters, 5 kinds of aldehydes, 4 kinds of terpenoids, and 7 kinds of unclassified compounds. The relative content of fatty acids was the highest, accounting for 58.06% of the total wax content. This provided a theoretical reference for the further study of the relationship between the composition of cuticular wax in grapes and postharvest qualities of fruits.
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- 2023
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59. Transition-metal free C–N bond formation from alkyl iodides and diazonium salts via halogen-atom transfer
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Jing Zhang, Min Jiang, Chang-Sheng Wang, Kai Guo, Quan-Xin Li, Cheng Ma, Shao-Fei Ni, Gen-Qiang Chen, Yan Zong, Hua Lu, Li-Wen Xu, and Xinxin Shao
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Science - Abstract
The pursuit of efficient C–N bond formation is a prime focus of synthetic organic chemistry. Here, the authors documented a base promoted amination between alkyl iodides and diazonium salts via halogen-atom transfer (XAT) process.
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- 2022
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60. A noncanonical function of EIF4E limits ALDH1B1 activity and increases susceptibility to ferroptosis
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Xin Chen, Jun Huang, Chunhua Yu, Jiao Liu, Wanli Gao, Jingbo Li, Xinxin Song, Zhuan Zhou, Changfeng Li, Yangchun Xie, Guido Kroemer, Jinbao Liu, Daolin Tang, and Rui Kang
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Science - Abstract
Ferroptosis is lipid peroxidation-dependent cell death that has potential to be harnessed as a cancer therapeutic. Here, the authors show that the translation initiation factor eIF4E can repress ALDH1B1 independent of translation, increasing lipid peroxidation levels to promote ferroptosis.
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- 2022
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61. Case report: A rare case of left ventricular noncompaction in two Chinese siblings with becker muscular dystrophy caused by deletion of exons 10 to 12 in the DMD gene
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Jingdong Li, Wanyue Zhu, Guanhua Su, Feng Zhu, Xinxin Shuai, Yidi Meng, Jiaming Zhang, and Hao Chen
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becker muscular dystrophy ,left ventricular noncompaction ,cardiomyopathy ,heart failure ,heart transplantation ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
BackgroundBecker muscular dystrophy (BMD) is an inherited X-linked recessive condition resulting from mutations of the DMD gene encoding dystrophin. Left ventricular noncompaction (LVNC) is a rare cardiomyopathy morphologically characterized by abnormal myocardial trabeculae and deep recesses in the left ventricle. LVNC in BMD patients has only rarely been reported.Case reportIn the present study, we identified a deletion mutation in exons 10 to 12 (EX10_12 del) of the DMD gene (reference sequence NM_004006.2) in two Chinese siblings with BMD and LVNC by high throughput targeted next-generation sequencing (NGS) and quantitative polymerase chain reaction (qPCR). The proband was a 22-year-old man admitted with dyspnea, abdominal distention, and polyserositis. It is noteworthy that both the proband and his younger brother manifested progressive muscular atrophy and creatine kinase (CK) elevation. Light and electron microscopy examination of muscle biopsies showed the typical features of dystrophinopathies. Cardiac magnetic resonance imaging and echocardiography demonstrated that both brothers had an enlarged left ventricle, LVNC, and reduced left ventricular ejection fraction. Finally, the proband underwent heart transplantation at age 26 with an event-free follow-up over 4 years post-transplantation.ConclusionThis case further enriches our knowledge of the symptoms, genotype, cardiac performance, management, and prognosis of BMD patients complicated by LVNC. It is recommended that early comprehensive cardiac evaluation should be considered for patients with BMD to exclude LVNC, as this may have a significant impact on their prognosis.
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- 2023
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62. Effects of N‐acetyl‐L‐cysteine polysulfides on periodontitis in a mouse model
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Xinxin Sun, Yaru Sun, Sumin Cao, and Xueli Liu
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inflammation ,NAC‐S2 ,NF‐κB ,periodontitis ,TLR4 ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Abstract Background Polysulfides are reported to be involved in various important biological processes. N‐acetyl‐l‐cysteine polysulfide with 2 sulfane sulfur atoms (NAC‐S2) regulates diverse toll‐like receptor (TLR) signaling pathways. Here, we aimed to determine the role of NAC‐S2 in periodontitis and explore the potential mechanism. Methods A periodontitis mouse model was established by ligating the subgingival between the first and second molars in wild‐type, TLR4‐/‐, and Myd88‐/‐ mice. Results NAC‐S2 did not affect the proportion of macrophages (CD11b+F4/80+) or neutrophils (CD11b+GR‐1+) in the bone marrow. Mechanically, lipopolysaccharides (LPS), Zymosan A, or poly I: C induced tumor necrosis factor (TNF), interleukin (IL)‐6, and IL‐1β expression in bone marrow‐derived macrophages (BMDMs) could be inhibited by NAC‐S2. On the other hand, NAC‐S2 suppressed the phosphorylation levels of IκB‐α, p65, and IκB kinase (IKK)‐β induced by LPS in BMDMs, while LPS induced phosphorylation of ERK1/2, p38, and transforming growth factor β‐activated kinase 1 (TAK1) could not be affected by NAC‐S2. In wild‐type periodontitis mice, NAC‐S2 administration decreased the cemento‐enamel‐junction–alveolar bone crest (CEJ‐ABC) distance and the relative mRNA expression of TNF, IL‐6, and IL‐1β, while such phenomena could not be observed in TLR4 deficiency or Myd88 deficiency mice. Conclusions All of these results indicate that NAC‐S2 ameliorates TLR4/NF‐κB pathway mediated inflammation in mouse periodontitis model.
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- 2023
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63. Growth of preference for solitude in urban and rural Chinese adolescents
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Xi Chen, Xinxin Sun, Xuan Wu, Junsheng Liu, Dan Li, and Xinyin Chen
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preference for solitude ,adolescents ,social-cultural context ,urban ,rural ,China ,Psychiatry ,RC435-571 - Abstract
IntroductionAs individuals enter adolescence, their preference for solitude (PFS) increases with age, which may be a result of balancing the need for social affiliation and the need for autonomy and independence. These needs are shaped by the social-cultural contexts, and thus the growth rate of PFS may differ across social-cultural contexts.This study examined to what extent the developmental trajectory of PFS differed between urban and rural Chinese adolescents.MethodsAdolescents in urban (n = 326,168 boys, Mage =12.00 years, SD = 0.61) and rural (n = 449, 198 boys, Mage =11.82 years, SD = 0.58) regions in China reported their PFS and shyness each year from Grade 6 to Grade 8. Longitudinal measurement invariance of PFS was established between the urban and rural samples. Location and gender differences in the intercept and the slope of PFS were examined using a latent growth model, while controlling for shyness at each time point.ResultsThe analyses revealed that adolescents in both urban and rural regions showed an increasing trajectory of PFS. Although urban and rural adolescents did not differ in the initial level of PFS at Grade 6, urban adolescents’ PFS increased faster than that of the rural adolescents. The urban-rural difference in the slope of PFS remained significant after controlling for the associations between the intercept and the slope of PFS and shyness at each time point. In addition, in the rural region, boys showed a faster increase of PFS than girls, yet gender differences in the initial level of PFS and the developmental trajectory in the urban region were nonsignificant.DiscussionThe findings reveal a normative increasing trend of PFS during early adolescence and faster increase for urban than rural adolescents. To promote adolescents’ psychological well-being, parents, teachers and practitioners need to help adolescents establish a good balance between social interaction and solitude. When deciding what is a good balance, it is important to consider the social-cultural context.
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- 2023
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64. Axial tensile behavior of hybrid steel-polypropylene fiber reinforced high-strength lightweight concrete
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Taotao Cui, Baokuan Ning, Xinxin Shi, Jinyu Li, and Anqi Li
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High-strength lightweight concrete (HSLC) ,Hybrid fibers ,Tensile properties ,Steel fibers ,Polypropylene fibers ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
In practical engineering, concrete materials are mainly damaged by tension, especially for high-strength lightweight concrete (HSLC) whose tensile performance is not as satisfactory as ordinary concrete under the same compressive strength. Adding fibers is one of the most effective methods to improve the tensile properties of concrete. In this study, the tensile behavior of hybrid fiber reinforced HSLC was investigated through direct tensile test. The tensile stress-strain curve was obtained and the tensile toughness was calculated. Furthermore, the cracking process was measured and captured synchronously by digital image correlation (DIC) measurement. The results indicated that hybrid fibers enhanced the tensile properties of HSLC at both micro and macro levels. Polypropylene fibers increased the tensile toughness of HSLC by inhibiting the propagation of micro-cracks. Steel fibers improved the peak stress, peak strain, and tensile toughness of HSLC by extending the propagation path of macro-cracks and restraining the increase of the width of macro-cracks. According to the test results, an equation for the axial tensile stress-strain curve of the hybrid fiber reinforced HSLC related to fiber characteristic parameters was formulated, which can be used as a reference for engineering design.
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- 2023
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65. Miniaturized Lens Antenna with Enhanced Gain and Dual-Focusing for Millimeter-Wave Radar System
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Jian Wang, Junping Duan, Xinxin Shen, Yongsheng Wang, and Binzhen Zhang
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waveguide antenna ,miniaturization ,dual-focusing ,radome ,gain enhancement ,UV-LIGA technology ,Mechanical engineering and machinery ,TJ1-1570 - Abstract
This paper presents a waveguide Lens antenna at the W-band adopting dual-focusing Lens to improve the performance. The Lens antenna consisted of a waveguide slotted structure and lenses processed using NOA73 meet the demands of miniaturization for current communication systems. The antenna radome fabricated using NOA73 not only protects the antenna structure but also improves the gain of the antenna by about 9.5 dBi via electromagnetic wave dual-focusing. A prototype is fabricated using novel UV-LIGA technology. Measured results are compared with simulated values. Measured results confirmed the fabricated antenna operated in the W-band with a 10 dB fractional bandwidth (FBW) of 6.5% from 97.5 to 104 GHz and a peak gain of 22 dBi at 100 GHz in the direction perpendicular to the plane of the feed waveguide. A good agreement between simulation and measurement is obtained, demonstrating efficient radiations in the operating band.
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- 2024
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66. Establishment and evaluation of a risk-prediction model for hypertension in elderly patients with NAFLD from a health management perspective
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An Zhang, Xin Luo, Hong Pan, Xinxin Shen, Baocheng Liu, Dong Li, and Jijia Sun
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Medicine ,Science - Abstract
Abstract Elderly patients with nonalcoholic fatty liver disease are at a higher risk of developing. This study established an effective, individualised, early Hypertension risk-prediction model and proposed health management advice for patients over 60 years of age with NAFLD. Questionnaire surveys, physical examinations, and biochemical tests were conducted in 11,136 participants. The prevalence of NAFLD among 11,136 participants was 52.1%. Risk factors were screened using the least absolute shrinkage and selection operator model and random forest model. A risk-prediction model was established using logistic regression analysis and a dynamic nomogram was drawn. The model was evaluated for discrimination, calibration, and clinical applicability using receiver operating characteristic curves, calibration curves, decision curve analysis, net reclassification index (NRI), and external validation. The results suggested that the model showed moderate predictive ability. The area under curve (AUC) of internal validation was 0.707 (95% CI: 0.688–0.727) and the AUC of external validation was 0.688 (95% CI: 0.672–0.705). The calibration plots showed good calibration, the risk threshold of the decision curve was 30–56%, and the NRI value was 0.109. This Hypertension risk factor model may be used in clinical practice to predict the Hypertension risk in NAFLD patients.
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- 2022
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67. Survival of patients with gastric cancer surgically treated at the National Cancer Center of China from 2011 to 2018 according to stage at diagnosis
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Wenzhe Kang, Hongmei Zeng, Jianping Xiong, Yang Li, Peng Jin, Xinxin Shao, Haitao Hu, Bingzhi Wang, Yibin Xie, and Yantao Tian
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Gastric cancer ,Survival ,National Cancer Center ,5-year survival rate ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Objective: The postoperative survival rates of patients with gastric cancer at different stages treated at the National Cancer Center (NCC) of China have not been reported. Therefore, we evaluated the survival of patients with gastric cancer who underwent surgery at the NCC from 2011 to 2018 to provide baseline information for further studies. Methods: We identified 7,301 patients with primary gastric carcinoma who underwent surgery at the NCC between January 2011 and May 2018; among these, 5,008 patients were enrolled in this study. Follow up was completed on April 30, 2020. We analyzed the 5-year survival according to the stage, sex, age, and other clinicopathological features. Results: Five-year survival rates of patients with pTNM stages IA, IB, IIA, IIB, IIIA, IIIB, IIIC, and IV treated at the NCC were 94.9%, 91.8%, 86.5%, 76.1%, 61.1%, 44.2%, 29.7%, and 8.1%, respectively, which were similar to those reported in Japan during the same period. Five-year survival rates of patients with ypTNM stages I, II, III, and IV were 93.1%, 63.2%, 27.2%, and 0.0%, respectively. In multivariable analysis, age, signet ring cell carcinoma, adjuvant chemotherapy, and degree of differentiation were revealed as important prognostic factors. Conclusion: The survival rates of patients with gastric cancer treated at the NCC have been significantly improved, reaching the levels of Japan in the same period.
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- 2022
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68. Linezolid-Resistant Enterococcus faecalis of Chicken Origin Harbored Chromosome-Borne optrA and Plasmid-Borne cfr, cfr(D), and poxtA2 Genes
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Biao Tang, Chenhui Zou, Stefan Schwarz, Chunyan Xu, Wenbo Hao, Xiao-Mei Yan, Yuting Huang, Juan Ni, Hua Yang, Xiang-Dang Du, and Xinxin Shan
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Enterococcus faecalis ,linezolid ,resistance ,mobile genetic element ,horizontal transfer ,conjugation ,Microbiology ,QR1-502 - Abstract
ABSTRACT The aim of this study was to investigate the transferability of acquired linezolid resistance genes and associated mobile genetic elements in an Enterococcus faecalis isolate QZ076, cocarrying optrA, cfr, cfr(D), and poxtA2 genes. MICs were determined by broth microdilution. Whole-genome sequencing (WGS) was performed using the Illumina and Nanopore platforms. The transfer of linezolid resistance genes was investigated by conjugation, using E. faecalis JH2-2 and clinical methicillin-resistant Staphylococcus aureus (MRSA) 109 as recipients. E. faecalis QZ076 harbors four plasmids, designated pQZ076-1 to pQZ076-4, with optrA located in the chromosomal DNA. The gene cfr was located on a novel pseudocompound transposon, designated Tn7515, integrated into the 65,961-bp pCF10-like pheromone-responsive conjugative plasmid pQZ076-1. Tn7515 generated 8-bp direct target duplications (5′-GATACGTA-3′). The genes cfr(D) and poxtA2 were colocated on the 16,397-bp mobilizable broad-host-range Inc18 plasmid pQZ076-4. The cfr-carrying plasmid pQZ076-1 could transfer from E. faecalis QZ076 to E. faecalis JH2-2, along with the cfr(D)- and poxtA2-cocarrying plasmid pQZ076-4, conferring the corresponding resistant phenotype to the recipient. Moreover, pQZ076-4 could also transfer to MRSA 109. To the best of our knowledge, this study presented the first report of four acquired linezolid resistance genes [optrA, cfr, cfr(D), and poxtA2] being simultaneously present in the same E. faecalis isolate. The location of the cfr gene on a pseudocompound transposon in a pheromone-responsive conjugative plasmid will accelerate its rapid dissemination. In addition, the cfr-carrying pheromone-responsive conjugative plasmid in E. faecalis was also able to mobilize the interspecies transfer of the cfr(D)- and poxtA2-cocarrying plasmid between enterococci and staphylococci. IMPORTANCE In this study, the simultaneous occurrence of four acquired oxazolidinone resistance genes [optrA, cfr, cfr(D), and poxtA2] was identified in an E. faecalis isolate of chicken origin. The association of the cfr gene with a novel pseudocompound transposon Tn7515 integrated into a pCF10-like pheromone-responsive conjugative plasmid will accelerate its dissemination. Moreover, the location of the resistance genes cfr(D) and poxtA2 on a mobilizable broad-host-range Inc18 family plasmid represents the basis for their intra- and interspecies dissemination with the aid of a conjugative plasmid and further accelerates the spreading of acquired oxazolidinone resistance genes, such as cfr, cfr(D), and poxtA2, among Gram-positive pathogens.
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- 2023
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69. Aligned Metal–Organic Framework Nanoplates in Mixed‐Matrix Membranes for Highly Selective CO2/CH4 Separation
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Lei Wang, Xianying Bai, Yawei Gu, Xinxin Shi, Shilong Wang, Jingxian Hua, Rujing Hou, Chongqing Wang, and Yichang Pan
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CO2 separation ,high loading ,KAUST‐7‐NH 2 nanoplates ,ligand doping ,mixed‐matrix membrane ,Physics ,QC1-999 ,Technology - Abstract
Abstract 2D metal–organic frameworks are attractive filler in mixed matrix membranes (MMMs) due to the high aspect ratio and contact opportunity at the filler–polymer interface. However, their alignment in polymer matrix remains a challenge to fully play their functions. Herein, to our best knowledge, for the first time, the facile synthesis of KAUST‐7‐NH2 (KAUST, King University of Science and Technology) nanoplate is reported with 1D channels with an aspect ratio greater than 30. The nanoplates are incorporated and aligned in the 4,4′‐(hexafluoroisopropylidene) diphthalic anhydride‐2,4‐diaminomesitylene (6FDA‐DAM) polymer matrix under the shear force with a filler loading up to 50 wt%. The large difference in adsorption abilities between CO2 and CH4 from the (001)‐oriented KAUST‐7‐NH2 nanoplate‐based MMMs and the favorable interaction at the filler–polymer interface contribute to the excellent CO2/CH4 separation performance. The resultant membranes show CO2/CH4 selectivity with 66.2% enhancement (surpassed 2008 Robeson upper bound), antiplasticization up to 17 bar, and long‐term stability up to 240 h indicating its good potential for natural gas treatment.
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- 2023
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70. Multiplex LNA probe-based RAP assay for rapid and highly sensitive detection of rifampicin-resistant Mycobacterium tuberculosis
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Ruiqing Zhang, Xichao Ou, Xiuli Sun, Guohao Fan, Bing Zhao, Fengyu Tian, Fengyu Li, Xinxin Shen, Yanlin Zhao, and Xuejun Ma
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multiplex ,RAP ,rifampicin-resistant tuberculosis (RR-TB) ,rapid ,highly sensitive ,Microbiology ,QR1-502 - Abstract
ObjectivesThe World Health Organization (WHO) Global tuberculosis Report 2021 stated that rifampicin-resistant tuberculosis (RR-TB) remains a major public health threat. However, the in-practice diagnostic techniques for RR-TB have a variety of limitations including longer time, lack of sensitivity, and undetectable low proportion of heterogeneous drug resistance.MethodsHere we developed a multiplex LNA probe-based RAP method (MLP-RAP) for more sensitive detection of multiple point mutations of the RR-TB and its heteroresistance. A total of 126 clinical isolates and 78 sputum samples collected from the National Tuberculosis Reference Laboratory, China CDC, were tested by MLP-RAP assay. In parallel, qPCR and Sanger sequencing of nested PCR product assay were also performed for comparison.ResultsThe sensitivity of the MLP-RAP assay could reach 5 copies/μl using recombinant plasmids, which is 20 times more sensitive than qPCR (100 copies/μl). In addition, the detection ability of rifampicin heteroresistance was 5%. The MLP-RAP assay had low requirements (boiling method) for nucleic acid extraction and the reaction could be completed within 1 h when placed in a fluorescent qPCR instrument. The result of the clinical evaluation showed that the MLP-RAP method could cover codons 516, 526, 531, and 533 with good specificity. 41 out of 78 boiled sputum samples were detected positive by MLP-RAP assay, which was further confirmed by Sanger sequencing of nested PCR product assay, on the contrary, qPCR was able to detect 32 samples only. Compared with Sanger sequencing of nested PCR product assay, both the specificity and sensitivity of the MLP-RAP assay were 100%.ConclusionMLP-RAP assay can detect RR-TB infection with high sensitivity and specificity, indicating that this assay has the prospect of being applied for rapid and sensitive RR-TB detection in general laboratories where fluorescent qPCR instrument is available.
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- 2023
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71. Honey bee maternal effects improve worker performance and reproductive ability in offspring
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Longtao Yu, Xujiang He, Xinxin Shi, Weiyu Yan, and Xiaobo Wu
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honey bee ,maternal effect ,queen quality ,foraging performance ,reproductive ability ,Biology (General) ,QH301-705.5 - Abstract
Maternal effects are an evolutionary strategy used to improve offspring quality. In an example of maternal effects in honey bees (Apis mellifera), mother queens produce larger eggs in queen cells than in worker cells in order to breed better daughter queens. In our current study, morphological indexes, reproductive tissues, and the egg-laying ability of newly reared queens reared with eggs laid in queen cells (QE), eggs laid in worker cells (WE), and 2-day-old larvae in worker cells (2L) were evaluated. In addition, morphological indexes of offspring queens and working performance of offspring workers were examined. The thorax weight, number of ovarioles, egg length, and number of laid eggs and capped broods of QE were significantly higher than those of WE and 2L, indicating that the reproductive capacity of QE group was better than that of other groups. Furthermore, offspring queens from QE had larger thorax weights and sizes than those from the other two groups. Offspring worker bees from QE also had larger body sizes and greater pollen-collecting and royal jelly-producing abilities than those of other two groups. These results demonstrate that honey bees display profound maternal effects on queen quality that can be transmitted across generations. These findings provide a basis for improving queen quality, with implications in apicultural and agricultural production.
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- 2023
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72. Biomaterial-assisted tumor therapy: A brief review of hydroxyapatite nanoparticles and its composites used in bone tumors therapy
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Quan Zhang, Lei Qiang, Yihao Liu, Minjie Fan, Xinxin Si, and Pengfei Zheng
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hydroxyapatite nanoparticles ,tumor cell apoptosis ,bone tumor therapy ,drug delivery ,PTT ,MFH ,Biotechnology ,TP248.13-248.65 - Abstract
Malignant bone tumors can inflict significant damage to affected bones, leaving patients to contend with issues like residual tumor cells, bone defects, and bacterial infections post-surgery. However, hydroxyapatite nanoparticles (nHAp), the principal inorganic constituent of natural bone, possess numerous advantages such as high biocompatibility, bone conduction ability, and a large surface area. Moreover, nHAp’s nanoscale particle size enables it to impede the growth of various tumor cells via diverse pathways. This article presents a comprehensive review of relevant literature spanning the past 2 decades concerning nHAp and bone tumors. The primary goal is to explore the mechanisms responsible for nHAp’s ability to hinder tumor initiation and progression, as well as to investigate the potential of integrating other drugs and components for bone tumor diagnosis and treatment. Lastly, the article discusses future prospects for the development of hydroxyapatite materials as a promising modality for tumor therapy.
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- 2023
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73. Metabolic profiling of Apis mellifera larvae treated with sublethal acetamiprid doses
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Xinxin Shi, Jingliang Shi, Longtao Yu, and Xiaobo Wu
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Ecotoxicology ,Acetamiprid ,Insecticides ,Honeybee larvae ,Metabolites ,Apis mellifera ,Environmental pollution ,TD172-193.5 ,Environmental sciences ,GE1-350 - Abstract
Acetamiprid is a neonicotinoid insecticide used in crop protection worldwide. Such widespread application can pose risks to pollinator insects, particularly to honeybees (Apis mellifera); therefore, the evaluation of the harmful effects of acetamiprid is necessary. Recent studies report behavior and gene expression dysfunction in honeybees, related to acetamiprid contamination. However, most studies do not consider potential metabolism disorders. To examine the effects of sublethal acetamiprid doses on the hemolymph metabolism of honeybees, worker bee larvae(2 days old) were fed with sucrose water containing different concentrations of acetamiprid (0, 5, and 25 mg/L) until capped (6 days old). The hemolymph (200 μL) of freshly capped larvae was collected for liquid chromatography-mass spectrometry (LC-MS). Overall, increasing acetamiprid exposure induced greater metabolic variations in worker bee larvae(treated groups compared to untreated). In the positive ion mode, 36 common differential metabolites in the acetamiprid-treated groups were screened from the identified differential metabolites. Of these, 19 metabolites were upregulated, and 17 were downregulated. 10 common differential metabolites were screened in the negative ion mode. 3 metabolites were upregulated, and 7 metabolites were downregulated. These common metabolites included traumatic acid, indole etc. These commonly differentiated metabolites were classified as compounds with biological roles, lipids, and phytochemical compounds, and others. The metabolic pathways of common differentiated metabolites with significant differences (P
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- 2023
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74. Enhancement of a recombinase-aided amplification assay using betaine and pullulan
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Jinrong Wang, Guowei Song, Yue Ming, Jing Pan, Ruiqing Zhang, Guohao Fan, Xinxin Shen, Xuejun Ma, and Lixin Li
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Nucleic acid amplification enhancer ,Betaine ,Pullulan ,RAA ,Long-fragment ,Infectious and parasitic diseases ,RC109-216 - Abstract
Background: Nucleic acid amplification enhancers suitable for use in a recombinase-aided amplification (RAA) assay were studied for the first time, and amplification of a long-fragment (509 bp) was initially explored. Methods: Using recombinant plasmids and clinical samples, RAA fluorescence and basic methods were used to evaluate the efficacy. The fluorescence method was evaluated by threshold time and fluorescence value, and the basic method was characterized by 2% agarose gel electrophoresis. Results: Taking a previously established RAA assay for HPV18 as an example, we demonstrated that the addition of 0.2 M, 0.4 M, and 0.6 M betaine and 10% pullulan could enhance the RAA. The new RAA assays with betaine and pullulan were named B-RAA and P-RAA, respectively. Using the B-RAA and P-RAA fluorescence methods, the threshold time values could be shortened by 1.72–2.32 minutes and 2.60 minutes, respectively, and the fluorescence values could be enhanced by 8847.25–9094.37 mv and 5250 mv, respectively. Using the basic method, the sensitivity could be increased 10-fold. We successfully amplified a long-fragment of 509 bp using a P-RAA assay with a sensitivity of 102 copies/µL (compared with 103 copies/µL in the RAA assay). Conclusions: Thus, we concluded that betaine and pullulan are effective additives to enhance the sensitivity of RAA assays.
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- 2022
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75. A case with primary cardiac paraganglioma: imaging findings
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Mengmeng Liu, MS, Pengge Li, MS, Yonggao Zhang, PhD, Xinxin Sun, MS, and Shaohua Hua, PhD
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Paraganglioma ,Cardiac mass ,Right atrium ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 - Abstract
A 67-yeary-old middle-aged woman admitted to the hospital with chief complaints of intermittent palpitation, fatigue for more than 3 months, and bilateral lower extremity edema about 2 months. A solid mass was discovered in the right atrium by echocardiographic examination, and computerized tomography (CT) guided needle biopsy of the mass was performed and revealed a neurogenic tumor, which was a paraganglioma. She underwent surgical excision of the tumor and had uneventful recovery at a month post-operation.
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- 2022
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76. Review of Three-Dimensional Model Simplification Algorithms Based on Quadric Error Metrics and Bibliometric Analysis by Knowledge Map
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Han Chang, Yanan Dong, Di Zhang, Xinxin Su, Yijun Yang, and Inhee Lee
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triangular mesh model simplification ,edge-collapsing ,quadric error metrics ,mesh quality ,CiteSpace ,Mathematics ,QA1-939 - Abstract
With the rapid advancement of computer graphics and three-dimensional modeling technology, the processing and optimization of three-dimensional (3D) models have become contentious research topics. In the context of mobile devices or web applications, situations may arise where it becomes necessary to load a 3D model with a substantial memory footprint in real-time or dynamically adjust the level of detail of a model based on the scene’s proximity. In such cases, it is imperative to optimize the original model to ensure smoothness and responsiveness. Due to the simplicity of their algorithm, quadric error metrics (QEMs) can deliver excellent results in simplifying 3D models while maintaining high efficiency. Therefore, QEM is widely employed in engineering applications within the realm of computer graphics development. Moreover, in the pursuit of enhanced quality and efficiency, numerous scholars have improved it based on QEM algorithms. This study aims to provide a systematic review and summary of the principles and applications of current research on QEM algorithms. First, we conducted a bibliometric analysis of 128 studies in related fields spanning from 1998 to 2022 using CiteSpace. This allowed us to sort QEM algorithms and gain insights into their development status and emerging trends. Second, we delve into the fundamental principles and optimizations of the QEM algorithms to provide a deeper understanding of their implementation process. Following that, we explore the advantages and limitations of the QEM algorithms in practical applications and analyze their potential in various domains, including virtual reality and game development. Finally, this study outlines future research directions, which encompass the development of more efficient error metric calculation methods, the exploration of adaptive simplification strategies, and the investigation of potential synergies with deep learning technologies. Current research primarily centers on enhancing QEM algorithms by incorporating additional geometric constraints to better differentiate between flat and irregular areas. This enables a more accurate determination of the areas that should be prioritized for folding. Nevertheless, it is important to note that these improvements may come at the cost of reduced computational efficiency. Therefore, future research directions could involve exploring parallel computing techniques and utilizing GPUs to enhance computational efficiency.
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- 2023
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77. The Protective Effect of Marsdenia tenacissima against Cisplatin-Induced Nephrotoxicity Mediated by Inhibiting Oxidative Stress, Inflammation, and Apoptosis
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Zhiguang Zhang, Boya Liang, Wugemo Jike, Runtian Li, Xinxin Su, Jie Yu, and Tongxiang Liu
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Marsdenia tenacissima ,cisplatin ,nephrotoxicity ,oxidative stress ,inflammation ,apoptosis ,Organic chemistry ,QD241-441 - Abstract
Cisplatin (Cis) is considered to be one of the most effective drugs for killing cancer cells and remains a first-line chemotherapeutic agent. However, Cis’s multiple toxicities (especially nephrotoxicity) have limited its clinical use. Marsdenia tenacissima (Roxb.) Wight et Arn. (MT), a traditional Chinese medicine (TCM) employed extensively in China, not only enhances the antitumor effect in combination with Cis, but is also used for its detoxifying effect, as it reduces the toxic side effects of chemotherapy drugs. The aim of this study was to explore the therapeutic effect of MT on Cis-induced nephrotoxicity, along with its underlying mechanisms. In this study, liquid–mass spectrometry was performed to identify the complex composition of the extracts of MT. In addition, we measured the renal function, antioxidant enzymes, and inflammatory cytokines in mice with Cis-induced nephrotoxicity and conducted renal histology evaluations to assess renal injury. The expressions of the proteins related to antioxidant, anti-inflammatory, and apoptotic markers in renal tissues was detected by Western blotting (WB). MT treatment improved the renal function, decreased the mRNA expression of the inflammatory factors, and increased the antioxidant enzyme activity in mice. A better renal histology was observed after MT treatment. Further, MT inhibited the expression of the phospho-NFκB p65 protein/NFκB p65 protein (p-p65)/p65, phospho-inhibitor of nuclear factor kappa B kinase beta subunit/inhibitor of nuclear factor kappa B kinase beta subunit (p-IKKβ/IKKβ), Bcl-2-associated X (Bax), and Cleaved Caspase 3/Caspase 3 proteins, while the expression of nuclear factor-erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), Recombinant NADH Dehydrogenase, Quinone 1 (NQO1), and B-cell lymphoma-2 (Bcl-2) was increased. The present study showed that MT ameliorated renal injury, which mainly occurs through the regulation of the Nrf2 pathway, the NF-κB pathway, and the suppression of renal tissue apoptosis. It also suggests that MT can be used as an adjuvant to mitigate the nephrotoxicity of Cis chemotherapy.
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- 2023
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78. Real-Time Optimal States Estimation with Inertial and Delayed Visual Measurements for Unmanned Aerial Vehicles
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Xinxin Sun, Chi Zhang, Le Zou, and Shanhong Li
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data fusion ,motion estimation ,inertial sensors ,vision delay ,UAV ,Chemical technology ,TP1-1185 - Abstract
Motion estimation is a major issue in applications of Unmanned Aerial Vehicles (UAVs). This paper proposes an entire solution to solve this issue using information from an Inertial Measurement Unit (IMU) and a monocular camera. The solution includes two steps: visual location and multisensory data fusion. In this paper, attitude information provided by the IMU is used as parameters in Kalman equations, which are different from pure visual location methods. Then, the location of the system is obtained, and it will be utilized as the observation in data fusion. Considering the multiple updating frequencies of sensors and the delay of visual observation, a multi-rate delay-compensated optimal estimator based on the Kalman filter is presented, which could fuse the information and obtain the estimation of 3D positions as well as translational speed. Additionally, the estimator was modified to minimize the computational burden, so that it could run onboard in real time. The performance of the overall solution was assessed using field experiments on a quadrotor system, compared with the estimation results of some other methods as well as the ground truth data. The results illustrate the effectiveness of the proposed method.
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- 2023
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79. Chlorogenic Acid from Burdock Roots Ameliorates Oleic Acid-Induced Steatosis in HepG2 Cells through AMPK/ACC/CPT-1 Pathway
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Kaiyang Ma, Weixi Sheng, Xinxin Song, Jiangfeng Song, Ying Li, Wuyang Huang, and Yuanfa Liu
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chlorogenic acid ,steatosis ,β-oxidation of fatty acid ,natural factor ,molecular mechanism ,Organic chemistry ,QD241-441 - Abstract
Hepatic steatosis can cause liver dysfunction and cell injury, on which natural functional factors are expected to be an effective approach for long-term intervention. However, the cellular molecular mechanisms are unclear. Chlorogenic acid is a phenolic compound, which can regulate lipid metabolism and is abundant in burdock root. The aim of this study was to investigate the potential molecular mechanism of the effect of chlorogenic acid from burdock root (ACQA) on steatosis in HepG2 cells. In this study, we found that ACQA reduced the number of lipid droplets and lipid levels in oleic acid-treated HepG2 cells. Molecular mechanistic results showed that ACQA enhanced CPT-1 expression by activating AMPK-related signaling pathways, and the concentrations of Ca2+ and cAMP were increased with the intervention of ACQA. In addition, ACQA enhanced the β-oxidation of fatty acids, reduced alanine transaminase and aspartate transaminase, and inhibited apoptosis in oleic acid-treated HepG2 cells. Our studies elucidate a novel mechanism that ACQA enhances the β-oxidation of fatty acids through the AMPK/ACC/CPT-1 pathway to protect against steatosis in HepG2 cells, which provides insight into its molecular mechanism as well as intervention strategies for chlorogenic acid against fatty liver diseases.
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- 2023
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80. Silicon–Organic Hybrid Electro-Optic Modulator and Microwave Photonics Signal Processing Applications
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Zihan Zhou, Meng Chao, Xinxin Su, Shuanglin Fu, Ruonan Liu, Zhihua Li, Shuhui Bo, Zhuo Chen, Zhenlin Wu, and Xiuyou Han
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electro-optic modulator ,silicon photonics ,silicon–organic hybrid ,Mach–Zehnder modulator ,slot waveguide ,Mechanical engineering and machinery ,TJ1-1570 - Abstract
Electro-optic modulator (EOM) is one of the key devices of high-speed optical fiber communication systems and ultra-wideband microwave photonic systems. Silicon–organic hybrid (SOH) integration platform combines the advantages of silicon photonics and organic materials, providing a high electro-optic effect and compact structure for photonic integrated devices. In this paper, we present an SOH-integrated EOM with comprehensive investigation of EOM structure design, silicon waveguide fabrication with Slot structure, on-chip poling of organic electro-optic material, and characterization of EO modulation response. The SOH-integrated EOM is measured with 3 dB bandwidth of over 50 GHz and half-wave voltage length product of 0.26 V·cm. Furthermore, we demonstrate a microwave photonics phase shifter by using the fabricated SOH-integrated dual parallel Mach–Zehnder modulator. The phase shift range of 410° is completed from 8 GHz to 26 GHz with a power consumption of less than 38 mW.
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- 2023
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81. Influence of Heat Treatment on Tea Polyphenols and Their Impact on Improving Heat Tolerance in Drosophila melanogaster
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Jianfeng Huang, Xinxin Su, Qiyan Jia, Haoran Chen, Shaoxiao Zeng, and Hui Xu
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tea polyphenols ,Drosophila melanogaster ,heat tolerance ,transcriptomics ,metabolomics ,Chemical technology ,TP1-1185 - Abstract
This study investigated the potential mechanism of action of tea polyphenols (TPs), one of the major active ingredients in tea, to enhance heat resistance in Drosophila and the attenuating effect of heat treatment of TPs on their efficacy. The results showed that TPs were able to prolong the average survival time of Drosophila under high-temperature stress (p < 0.05), but the effect of TPs in prolonging the survival time of Drosophila melanogaster was significantly reduced (p < 0.05) with increasing TP heat-treatment time until it disappeared. The composition of TPs changed after heat treatment. It was also shown that the weakening of the effect of TPs in improving the heat tolerance of Drosophila was related to the decrease in the content of catechins and phenolic acids in their fractions as well as with the increase in the content of laccase. Transcriptomic analysis showed that the effect of TPs on heat tolerance in Drosophila melanogaster was closely related to the longevity regulation pathway, the neuroactive ligand–receptor interaction signaling pathway, and the drug metabolism–cytochrome P450 pathway. Metabolomics analysis showed that the effect of TP intervention in improving the body’s heat tolerance was mainly related to amino acid metabolism and energy metabolism. However, thermal processing weakened the relevance of these transcriptomes and metabolomes. The present study reveals the mechanism of action by which heat-treated TPs affect the body’s heat tolerance, which is important for the development and utilization of the heat-protection function of tea.
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- 2023
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82. Hermite Finite Element Method for Time Fractional Order Damping Beam Vibration Problem
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Xinxin Sun, Ailing Zhu, Zhe Yin, and Pengfei Ji
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Hermite finite element method ,error estimate ,time fractional order ,numerical simulation ,damping beam ,Thermodynamics ,QC310.15-319 ,Mathematics ,QA1-939 ,Analysis ,QA299.6-433 - Abstract
In this paper, the vibration problem of a beam with a time fractional damping term is studied by the Hermite finite element method, and its fully discrete scheme is obtained. The stability and error estimation of the scheme are analyzed, and it was proved that it is unconditionally stable and has a convergence order of O(τ+τ3−α+h4). The validity of the scheme is verified by numerical examples, the effects of fractional derivative order and damping coefficient on beam vibration are analyzed and the superiority of the fractional order model has been demonstrated by comparing with the traditional damping model.
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- 2023
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83. A Smaller Greater India and a Middle‐Early Eocene Collision With Asia
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Shuchen Jin, Xinxin Sun, Xianqing Jing, Zijian Zhang, Xiang Zhang, and Zhenyu Yang
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Greater India ,India–Asia collision ,paleomagnetism ,Tingri ,south Tibetan ,Geophysics. Cosmic physics ,QC801-809 - Abstract
Abstract When and how the collision between India‐Asia occurred continue to be debated. We report new paleomagnetic data (Ds = 158.8°, Is = 7.8°, ks = 81.3, α95 = 5.1°, N = 11 sites) from limestone of the Zongpu Formation Member I in the Tingri, which indicate that the Tethyan Himalaya was situated at 3.9 ± 2.6°S during 62‐59 Ma. This implies that Greater India was ∼900 km and that Tethyan Himalaya did not break off from India, which left a ∼2,000 km Neo‐Tethys Ocean that challenges the prevailing hypothesis that the initial collision of India–Asia occurred during this period. The drift rate of the India plate, with an average rate of 160 ± 28 mm/a during 60‐50 Ma, implies that the northern margin (e.g., the Tingri, Gyangze, Gamba, and Zanskar areas) of Greater India almost simultaneously collided with Asia at ∼50 Ma, quasi‐synchronously, and closing the Neo‐Tethys Ocean.
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- 2023
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84. Association of circulating tumor cells and IMP3 expression with metastasis of osteosarcoma
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Shuangwu Dai, Xinxin Shao, Qingzhu Wei, Shaohua Du, Changhe Hou, Haomiao Li, and Dadi Jin
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circulating tumor cells ,EMT ,osteosarcoma ,IMP3 ,metastasis ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
BackgroundCirculating tumor cells (CTCs) have been identified as a prognostic biomarker of tumors such as breast cancer and nasopharyngeal carcinoma, because they are obtained through a simple and noninvasive blood draw or liquid biopsy, but its clinical significance in osteosarcoma is still unclear. In this study, we analyzed the relationship between CTCs and clinicopathological features and discussed whether CTCs could be used as a biomarker for metastasis in osteosarcoma.MethodsWe enrolled 50 osteosarcoma patients with Enneking Stage IIB and Stage III and detected CTCs in 5 ml of peripheral blood samples collected from patients using the Canpatrol® CTC detection platform. Subsequently, multiplex RNA in situ hybridization (RNA-ISH) based on various molecular markers was performed to identify and classify CTCs. The relationships between clinical pathological features and CTC counts, subtypes (epithelial type, E type; hybrid epithelial/mesenchymal type, H type; mesenchymal type, M type), and insulin-like growth factor mRNA-binding protein 3 (IMP3) expression in CTCs were analyzed.ResultsCTCs were detected in 86% (43/50) of the osteosarcoma patients. The CTC counts, especially the total CTCs and H-type CTCs, signifcantly differed between Enneking Stage IIB and Stage III patients (P < 0.05). No significant differences were observed between the CTC count or type and other clinicopathological features (P > 0.05). There were significant differences in the expression of IMP3 in different types of CTCs, and the IMP3 positive rates in E/H/M type CTCs were 38.4, 65.6, and 62.0%, respectively (P < 0.001). Receiver operating characteristic (ROC) curve analysis showed that IMP3-positive CTC count had the best performance for diagnostic metastasis, with the largest area under the curve of 0.873 and cutoff value of four cells/5ml blood (sensitivity = 87.5%; specificity = 82.4%). Serial CTC monitoring in one patient suggested that total CTCs and H-type CTCs were associated with disease progression.ConclusionThis study demonstrates that the CTCs, especially the IMP3-positive CTCs and H/M-type CTCs, are related to the metastasis of osteosarcoma.
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- 2023
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85. A Controlled Clinical Study of Accelerated High-Dose Theta Burst Stimulation in Patients with Obsessive–Compulsive Disorder
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Jin Jiang, Ke Wan, Yueling Liu, Yan Tang, Wenxin Tang, Jian Liu, Jiehua Ma, Chuang Xue, Lu Chen, Huichang Qian, Dandan Liu, Xinxin Shen, Ruijuan Fan, Yongguang Wang, Kai Wang, Gongjun Ji, and Chunyan Zhu
- Subjects
Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Background. Obsessive–compulsive disorder (OCD) is frequently treated using a combination of counseling, drugs, and, more recently various transcranial stimulation protocols, but all require several weeks to months for clinically significant improvement, so there is a need for treatments with faster onset. This study investigated whether an accelerated high-dose theta burst stimulation (ahTBS) protocol significantly improves the efficacy of OCD compared to traditional 1-Hz repetitive transcranial magnetic stimulation (rTMS) in the routine clinical setting. Method. Forty-five patients with OCD were randomized into two groups and treated with ahTBS or 1-Hz rTMS for 5 days. Patients were assessed at baseline at the end of treatment using the Yale–Brown Obsessive–Compulsive Scale (Y-BOCS). Results. After 5 days of treatment, there was a significant decrease in Y-BOCS scores in both groups (p
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- 2023
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86. Morphology and Depositional Processes of a Carbonate-Filled Canyon in the Carboniferous KT-II Formation of the Eastern Precaspian Basin, Kazakhstan: Insight from 3D Seismic Data
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Jiapeng Wu, Xiaodong Cheng, Shanbo Sheng, Leyuan Fan, Kai Guo, Xining Li, Wan Diao, Unmei Tai, Shutang Jin, Shengbin Zhang, and Xinxin Song
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Geology ,QE1-996.5 - Abstract
Canyons in carbonate depositional settings, as important elements of the source-to-sink system, remain poorly studied compared to those in siliciclastic depositional environments. The latest high-resolution three-dimensional seismic data, well logs, and core data at the eastern edge of the Precaspian Basin are used to investigate the geomorphology, infillings, and depositional process of a unique carbonate-filled canyon in the Carboniferous KT-II formation parallel to the carbonate platform, which is distinct from other slope-perpendicular canyons. The canyon has a total length of more than 52.3 km with a nearly N-S orientation and an S-shaped geometry, and the whole canyon can be divided into three segments by two knickpoints. The slope-parallel orientation of the canyon is mainly controlled by the palaeogeomorphology and reverse faults. Due to the collision of the Kazakh and European plates in the early-middle Visean (early Carboniferous), the canyon was formed in a northern tilted, elongated, and restricted palaeotopographic feature between uplifts. The development of reverse faults related to tectonic movement controlled the variations in the width of the canyon and the positions of the knickpoints. Tectonics controlled the orientation and formation of the canyon, while sedimentary processes contributed to its infilling. The well-seismic tie analysis indicated two distinct periods of the canyon fillings, Ss1 and Ss2, which were separated by a second-order sequence boundary. The lower part contained sediments supplied by both sides of the canyon through channels or gullies, and the upper part was dominated by a carbonate platform that prograded from the eastern side of the canyon. The evolution of the canyon can be subdivided into three stages. The increasing stage was mainly characterized by significant upslope erosion through headward retrogressive mass failures in the slope-parallel confined negative relief to form the canyon during the lowstand system tract of Ss1. Subsequently, in the early filling stage, the carbonate factory was productive during the highstand, and massive excess carbonate sediments were transported into the adjacent canyon by channels or gullies on both sides and deposited. The canyon was basically filled, and the morphology became much gentler. During the subsequent late filling stage, the carbonate platform was flooded again during the highstand, and the production rates of the carbonate factory greatly increased. The lateral progradation of carbonate platforms accelerated on the canyon of the early filling stage and further into the inner sag.
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- 2023
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87. Mutations and clinical characteristics of dRTA caused by SLC4A1 mutations: Analysis based on published patients
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Mengge Yang, Qiqi Sheng, Shenghui Ge, Xinxin Song, Jianjun Dong, Congcong Guo, and Lin Liao
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distal renal tubular acidosis ,SLC4A1 ,metabolic acidosis ,mutation ,clinical characteristics ,Pediatrics ,RJ1-570 - Abstract
Background and AimsThe genetic and clinical characteristics of patients with distal renal tubular acidosis (dRTA) caused by SLC4A1 mutations have not been systematically recorded before. Here, we summarized the SLC4A1 mutations and clinical characteristics associated with dRTA.MethodsDatabase was searched, and the mutations and clinical manifestations of patients were summarized from the relevant articles.ResultsFifty-three eligible articles involving 169 patients were included and 41 mutations were identified totally. Fifteen mutations involving 100 patients were autosomal dominant inheritance, 21 mutations involving 61 patients were autosomal recessive inheritance. Nephrocalcinosis or kidney stones were found in 72.27%, impairment in renal function in 14.29%, developmental disorders in 61.16%, hematological abnormalities in 33.88%, and muscle weakness in 13.45% of patients. The age of onset was younger (P
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- 2023
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88. A method to position a simple strip trial to improve trial efficiency and maximise the value of vineyard variability for decision-making
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Xinxin Song, Robert G.V. Bramley, and Katherine J. Evans
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on-farm experimentation, precision agriculture, spatial variation, vineyard trials, viticulture ,Agriculture ,Botany ,QK1-989 - Abstract
The main difficulties grapegrowers and consultants face in obtaining robust trial results include time and labour to collect data and land variability that confounds trial results. Spatial approaches that use whole-field designs, sensing technologies and geostatistical analysis enable more efficient data collection and account for the impact of spatial variation on crop responses while generating statistically robust results. However, the practical application of these approaches for vineyard trials requires affordable automation of measurements of viticultural variables and access to skills for geostatistics. A strip approach has been developed to simplify experimentation by allowing the farmer to use a single crop row to trial and analyse data in a spreadsheet. However, guidance is needed as to how to position trial strips in a vineyard block to reveal likely treatment effects across the entire block. Here, we investigated using a covariate to a response variable of interest to position a strip trial to infer treatment effects beyond the trial strip. Strip trials were simulated for two experiments: one comparing three treatments for vineyard floor management on grape yield and another comparing two spray programs for powdery mildew control. Useful covariates for yield or mildew severity were determined using correlation analyses. Trial results were analysed using a moving pairwise comparison of treatments and a moving average of the covariates. Simulated trial strips that incorporated a range of variation in a useful covariate close to that encountered in the whole block showed how yield or mildew severity varied with the covariates along the strips. Importantly, such results provided information about likely crop responses in other parts of the block according to variation in the covariates, thus contributing to better-informed decision-making. Compared to whole-field approaches, this strip approach is more efficient and simpler for growers to implement.
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- 2023
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89. Reliability of foot posture index (FPI-6) for evaluating foot posture in patients with knee osteoarthritis
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Yi Wang, Zehua Chen, Zugui Wu, Junyi Li, Congcong Li, Jiaman Yang, Weijian Chen, Zixuan Ye, Xinxin Shen, Tao Jiang, Wengang Liu, and Xuemeng Xu
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foot posture ,FPI-6 ,reliability ,knee osteoarthritis ,biomechanics ,Biotechnology ,TP248.13-248.65 - Abstract
Objective: To determine the reliability of FPI-6 in the assessment of foot posture in patients with knee osteoarthritis (KOA).Methods: Thirty volunteers with KOA (23 females, 7 males) were included in this study, assessed by two raters and at three different moments. Inter-rater and test-retest reliability were assessed with Cohen’s Weighted Kappa (Kw) and Intraclass Correlation Coefficient (ICC). Bland-Altman plots and respective 95% limits of agreement (LOA) were used to assess both inter-rater and test-retest agreement and identify systematic bias. Moreover, the internal consistency of FPI-6 was assessed by Spearman’s correlation coefficient.Results: FPI-6 total score showed a substantial inter-rater (Kw = .66) and test-retest reliability (Kw = .72). The six items of FPI-6 demonstrated inter-rater and test-retest reliability varying from fair to substantial (Kw = .33 to .76 and Kw = .40 to .78, respectively). Bland-Altman plots and respective 95% LOA indicated that there appeared no systematic bias and the acceptable agreement of FPI-6 total score for inter-rater and test-retest was excellent. There was a statistically significant positive correlation between each item and the total score of FPI-6, which indicated that FPI-6 had good internal consistency.Conclusion: In conclusion, the reliability of FPI-6 total score and the six items of FPI-6 were fair to substantial. The results can provide a reliable way for clinicians and researchers to implement the assessment of foot posture in patients with KOA.
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- 2023
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90. School victimization and Internet addiction among Chinese adolescents: The mediating roles of life satisfaction and loneliness
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Xinxin Shi and Rulin Wang
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school victimization ,life satisfaction ,loneliness ,Internet addiction ,adolescents ,Psychology ,BF1-990 - Abstract
The present study investigated the possibility of life satisfaction and loneliness mediating the link between school victimization and Internet addiction. A total of 3,363 middle/high school students (45% males; Mage = 15.67 years old, SD = 1.58) completed a series of self-report questionnaires, which included school victimization, life satisfaction, loneliness, and Internet addiction. The findings demonstrated a positive relationship between school victimization and Internet addiction. In addition, life satisfaction and loneliness mediated the link between school victimization and Internet addiction. Overall, these findings contribute to a better understanding of the association between school victimization and Internet addiction. They also extended the GST, providing suggestions for preventing and managing adolescents’ Internet addiction.
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- 2023
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91. The clinical effects of high-frequency oscillatory ventilation in the treatment of neonatal severe meconium aspiration syndrome complicated with severe acute respiratory distress syndrome
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Guang Yang, Yunxia Qiao, Xinxin Sun, Tiandan Yang, Aiying Lv, and Min Deng
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high-frequency oscillatory ventilation ,meconium aspiration syndrome ,acute respiratory distress syndrome ,neonate ,Pediatrics ,RJ1-570 - Abstract
Abstract Objective To explore the efficacy and safety of high-frequency oscillatory ventilation (HFOV) in the treatment of severe meconium aspiration syndrome (MAS) complicated with severe acute respiratory distress syndrome (ARDS). Methods A total of 65 infants with severe MAS complicated with severe ARDS were included in the study. The clinical efficacy of treatment for the HFOV group (n = 31) and the conventional mechanical ventilation (CMV) group (n = 34) was retrospectively analysed. The partial pressure of oxygen (PaO2), partial pressure of carbon dioxide (PaCO2), PaO2/fraction of inspired oxygen (FiO2), and oxygen index values before and at 6, 12, 24, 48, and 72 h after mechanical ventilation, the mechanical ventilation time, oxygen inhalation time, incidence of complications, and outcomes of the two groups were compared. Results At 6, 12, 24, and 48 h after mechanical ventilation, the PaO2 in the HFOV group was significantly higher than in the CMV group, while the PaCO2 in the HFOV group was significantly lower than in the CMV group (P < 0.05). At 6, 12, 24, 48, and 72 h after mechanical ventilation, PaO2/FiO2 in the HFOV group was significantly higher than in the CMV group, and the OI in the HFOV group was significantly lower than in the CMV group (P < 0.05). Mechanical ventilation time, oxygen inhalation time, and the incidence of air leakage were significantly lower in the HFOV than in the CMV group (P < 0.05). Conclusions Overall, HFOV can effectively improve lung ventilation and oxygenation function, shorten ventilator treatment time, and reduce the incidence rate of air leakage for neonatal MAS, making it a safe and effective treatment option.
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- 2021
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92. Bispecific T cell engagers kill resistant cells during KRAS-G12C blockade therapy
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Xinxin Song, Zhuan Zhou, Rui Kang, and Daolin Tang
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KRAS-G12C ,bispecific T cell engagers ,Immunologic diseases. Allergy ,RC581-607 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
The covalent KRAS-G12C inhibitors (G12Ci) are rapidly changing the treatment landscape for advanced non-small cell lung cancer, but drug resistance remains a clinical challenge. Two recent studies have developed bispecific T cell engagers that form a link between T cells and tumor cells to selectively eliminate G12Ci-resistant cells.
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- 2022
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93. Development of field-applicable endogenous internally controlled recombinase-aided amplification (EIC-RAA) assays for the detection of human papillomavirus genotypes 6 and 11 using sample releasing agent
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Anna He, Cheng Fang, Yue Ming, He Tan, Mengyi Zhang, Ruiqing Zhang, Jingyi Li, Mingzhu Nie, Fengyu Li, Yaxin Hu, Xinxin Shen, Xiuge Rong, and Xuejun Ma
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Human papillomavirus 6 and 11 ,Human β-globin gene ,Endogenous internally controlled recombinase-assisted amplification ,Sample releasing agent ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Objective: Human papillomavirus (HPV) 6 and 11 are the two most common low-risk HPV subtypes, accounting for more than 90% of condyloma acuminatum. A simple, accurate and rapid screening method to be applied in community-level hospitals is in high demand. Methods: Endogenous internally controlled recombinase-assisted amplification (EIC-RAA) assays for HPV6 and 11 were performed in a single closed-tube at 39 °C within 30 min. The sensitivity and specificity of EIC-RAA were examined using recombinant plasmids and pre-tested HPV DNA. A total of 233 clinical samples were collected, and the DNA was extracted by traditional multi-step extraction, or sample releasing agent, before analysis by EIC-RAA. For comparison, HPV detection via Quantitative real-time PCR (qPCR) was also performed. Results: The sensitivity of EIC-RAA analysis was 10 copies/reaction for HPV6, 100 copies/reaction for HPV11, and 100 copies/reaction for the human β-globin gene. No cross-reaction was observed with other HPV subtypes. Clinical performance of the EIC-RAA assay achieved a 100% of concordance rate with the commercial HPV qPCR kit. Further, the EIC-RAA assay achieved a 100% of concordance rate when using multi-step extracted DNA and sample releasing agent-processed DNA. Summary: The EIC-RAA assay for HPV6 and 11 detection possesses the advantages of accuracy, simplicity and rapidity, and demonstrates great potential to be used in community-level hospitals for field investigation.
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- 2022
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94. Nontargeted metabolomics study and pharmacodynamic evaluation of bidirectional fermentation for Ganoderma lucidum with Marsdenia tenacissima
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Runtian Li, Zhiguang Zhang, Xinxin Su, Jiaoneng Yu, Lin Lu, and Tongxiang Liu
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Marsdenia tenacissima ,Ganoderma lucidum ,fermentation ,non-target metabolomics ,C21 steroidal glycosides ,pharmacodynamic ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Lung cancer is one of the malignant tumors with the fastest incidence rate and mortality growth and the greatest threat to human health and life. Marsdenia tenacissima is an antitumor of Chinese medicine. However, Marsdenia tenacissima has low bioavailability in the human body and most of its main active substances are aglycones, such as Tenacigenin A, Tenacigenin B. This study aims to produce biotransformation products rich in pungent saponins by using Marsdenia tenacissima as a fermentation medium of Ganoderma lucidum. Non-targeted metabolomics analysis was carried out on the fermentation products after the optimization process. A total of 249 differential metabolites were detected, and the content of saponins increased from 0.1% to 0.41% and most of them were tenacigenin. Furthermore, the biotransformation of C21 steroidal glycosides in Marsdenia tenacissima was the central reaction in this fermentation process. Pharmacodynamics resewed that the anticancer effect of Marsdenia tenacissima was significantly enhanced after fermentation, mainly through inhibiting the growth and apoptosis of cancer cells.
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- 2022
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95. Association of coal mine dust lung disease with Nodular thyroid disease in coal miners: A retrospective observational study in China
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Feng Zhao, Hongzhen Zhang, Dingfei Ren, Chang-ming Li, Yaqi Gu, Yisong Wang, Dekun Lu, Zongyao Zhang, Qi Lu, Xinxin Shi, and Lixin Yang
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coal miners ,underground operating environment ,coal mine dust lung disease ,Nodular thyroid disease ,retrospective observational study ,Public aspects of medicine ,RA1-1270 - Abstract
BackgroundCoal dust is a major risk factor for the occupational health of coal miners, and underground workers with coal mine dust lung disease (Coal miners with coal mine dust lung disease (CMDLD) may have a higher risk of developing Nodular thyroid disease (NTD). The aim of this study was to investigate the relationship between coal mine dust lung disease and the development of Nodular thyroid disease in coal miners.MethodsThis was a clinical retrospective observational study that included 955 male coal miners from 31 different coal mining companies in Huainan, Anhui Province, China, who were examined in April 2021 at the Huainan Occupational Disease Prevention and Control Hospital to collect all their clinical physical examination data, including general conditions, laboratory test indices and imaging indices. Based on the presence or absence of Nodular thyroid disease, 429 cases with Nodular thyroid disease were classified as the diseased group and 526 cases without Nodular thyroid disease were classified as the control group. Logistic regression was used to analyse the correlation between the occurrence of Nodular thyroid disease in coal miners, and further single- and multi-factor logistic regression was used to screen the risk exposure factors for Nodular thyroid disease in coal miners.ResultsAge, coal mine dust lung disease (CMDLD), red blood cells (RBC), mean red blood cell volume (MCV), albumin (ALB), albumin/globulin (A/G), indirect bilirubin (IBIL), globulin (GLOB), total bilirubin (TBil) and myeloperoxidase (MPO) were associated with the development of Nodular thyroid disease in coal miners (p < 0.05) The results of univariate and multifactorial logistic regression analysis showed that CMDLD (OR:4.5,95%CI:2.79–7.51) had the highest OR and CMDLD was the strongest independent risk exposure factor for the development of Nodular thyroid disease in coal miners.ConclusionsThere is a strong correlation between coal mine dust lung disease and Nodular thyroid disease in underground coal miners, and clinicians need to be highly aware of the high risk of NTD in coal miners with CMDLD and adopt individualized clinical prevention strategies.
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- 2022
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96. Mapping Alteration Minerals Using ZY-1 02D Hyperspectral Remote Sensing Data in Coalbed Methane Enrichment Areas
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Li Chen, Xinxin Sui, Rongyuan Liu, Hong Chen, Yu Li, Xian Zhang, and Haomin Chen
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hyperspectral remote sensing ,ZY-1-02D ,Hyperion ,alteration mineral ,coalbed methane enrichment areas ,Science - Abstract
As a clean energy resource, coalbed methane (CBM) is an important industry in China’s dual-carbon strategic planning. Despite the immense potential of CBM resources in China, the current exploration level remains low due to outdated survey technology, impeding large-scale exploration and development. This study investigates the application of hyperspectral data in CBM enrichment areas, specifically focusing on the extraction of alteration minerals in the Hudi coal mine area of the Qinshui Basin using ZY-1 02D and Hyperion hyperspectral data. The hyperspectral alteration mineral identification methods are summarized and analyzed. A method that combines spectral feature matching and diagnostic characteristic parameters is proposed for mineral extraction based on the spectral characteristics of different minerals. The extraction results are verified through field samples using X-ray diffraction analysis. Results show that (1) both ZY-1 02D and Hyperion hyperspectral data yield favorable extraction results for clay and carbonate minerals; (2) the overall accuracy of clay and carbonate minerals extraction is higher using ZY-1 02D data compared with Hyperion data, with accuracies of 81.67% and 79.03%, respectively; (3) the proposed method effectively extracts alteration minerals in CBM enrichment areas using hyperspectral data, thereby providing valuable technical support for the application of hyperspectral data.
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- 2023
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97. A Waterborne Epoxy Composite Coating with Smart Corrosion Resistance Based on 2-Phenylbenzimidazole-5-sulfonic Acid/Layered Double Hydroxide Composite
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Caiyou Ding, Jiongxin Wu, Yuan Liu, Xinxin Sheng, Xiaoling Cheng, Xiaoyan Xiong, and Wenlin Zhao
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ZnAl-layered double hydroxide ,2-phenylbenzimidazole-5-sulfonic acid ,anti-corrosion ,water-based epoxy ,Organic chemistry ,QD241-441 - Abstract
In this study, ZnAl-layered double hydroxide (ZnAl-LDH) was functionalized with 2-phenylbenzimidazole-5-sulfonic acid (PBSA) to prepare ZnAl-PBSA-LDH using a simple one-step method. The electrochemical impedance spectroscopy (EIS) result of the solution phase demonstrated excellent corrosion inhibition performance of ZnAl-PBSA-LDH. Subsequently, 0.6 wt.% ZnAl-PBSA-LDH with shielding effects and active inhibition was incorporated into the water-based epoxy (WEP) for preparing the high-performance anti-corrosion coating (6-ZPL/WEP). The EIS test illustrated that the 6-ZPL/WEP coating maintained a high low-frequency impedance modulus (|Z0.01 Hz|) after 30 days of immersion, which is nearly two orders of magnitude higher compared to that of the blank coating. These results demonstrated that ZnAl-PBSA-LDH could efficiently improve the corrosion resistance of the WEP coating. Therefore, this study introduces new insights into the use of layered double hydroxides (LDHs) in the domain of anti-corrosion.
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- 2023
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98. Elderly’s preferences towards rehabilitation robot appearance using electroencephalogram signal
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Xinxin Sun and Wenkui Jin
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Robots ,Electroencephalogram ,Objective preferences ,Abstract appearance ,Figurative appearance ,Telecommunication ,TK5101-6720 ,Electronics ,TK7800-8360 - Abstract
Abstract Rehabilitation robots are becoming an important means of assisted living for the elderly, and the appearance of rehabilitation robots directly affects the willingness of the elderly to interact with the robots. Much of the current research on robot appearance preferences relies solely on subjective evaluations, which are relatively cheap, but do not reach deep into the brain to get an accurate grasp of how humans respond to robot appearance. Using electroencephalogram signal and questionnaire survey, we studied the preference of the elderly for abstract and figurative robots. The experimental materials are derived from the pictures of 10 robots in the market. The electroencephalogram signal are collected by BrainVision Recorder and processed by BrainVision Analyzer, as well as SPSS statistical analysis. Experiment shows that the peak of figurative robot pictures is higher and the fluctuation is more intense from 350 ms to 600 ms in the central region and the right half of parietal region. While the peak of abstract robot pictures is higher and the fluctuation is more intense in the prefrontal region, and the difference between abstract robot and figurative robot is not obvious in the occipital region. Based on the electroencephalogram signal and experimental results, it provides the possibility for objective preference evaluation of the elderly to the robot designed features.
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- 2021
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99. Magnetostratigraphic Evidence From the Gengma Basin for the Fast Response of the Crustal Rotation of the Northern Part of the Shan‐Thai Block to the India‐Eurasia Convergence
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Xinxin Sun, Yabo Tong, Zhenyu Yang, Junling Pei, Zongwen Pu, Lifu Hou, Shuchen Jin, Zijian Zhang, and Xinyue Li
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southeastern edge of the Tibetan plateau ,Shan‐Thai Block ,magnetostratigraphy ,Early Miocene ,crustal clockwise rotation ,lower crustal flow ,Geophysics. Cosmic physics ,QC801-809 ,Geology ,QE1-996.5 - Abstract
Abstract The Cenozoic tectonic evolution of the southeastern edge of the Tibetan Plateau is interpreted in terms of two alterative dynamic mechanisms: lateral extrusion of coherent lithospheric blocks and viscous lower crustal flow. To contribute to this debate, we conducted a magnetostratigraphic study of the Early Miocene sedimentary strata of the Gengma Basin, in the northern part of the Shan‐Thai Block (STB). The results show that variations in the deposition rate were synchronous with the rate of clockwise rotation during ∼18.05–15.93 Ma, indicating that the crustal clockwise rotation of the northern STB was the driver of the tectonic transformation of the NE‐SW trending strike‐slip system within the STB by at least ∼18.05 Ma. The rapid decrease in the clockwise rotational rate of the Gengma Basin was also synchronous with the sharp decrease in the convergence rate between the Indian Plate (IDP) and Eurasia at ∼17.23 Ma, which is similar to that occurred in the interior of the Tibetan Plateau during the Paleocene and Eocene, demonstrating the fast response of the southeastern edge of the Tibetan Plateau to the convergence of the IDP and Eurasia, in the form of the continuous upper crustal ductile deformation of the Tibetan Plateau and its periphery. The lateral flow of the viscous lower crust beneath the southeastern edge of the Tibetan Plateau may be the predominant driver of the tectonic evolution of the southeastern edge of the Tibetan Plateau since the Early Miocene.
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- 2022
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100. Case report: Spontaneous closure of ventricular pseudoaneurysm post-acute myocardial infarction with non-surgical therapy
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Xinxin Shuai, Xiajun Hu, and Yumiao Wei
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ventricular pseudoaneurysm ,myocardial infarction ,shape ,hemodynamic ,conservative therapy ,outcomes ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Left ventricle (LV) pseudoaneurysm is a rare disorder post-acute myocardial infarction (AMI). Resection or closure of the pseudoaneurysm by surgery is recommended due to the high propensity of pseudoaneurysm rupture while surgery has also high risks. Conservative therapy could be acceptable in small pseudoaneurysms or patients with high surgical risks. Nevertheless, the risk evaluation and grasp of indication are not clear. This case reported an acute cyst-like LV pseudoaneurysm formation post-AMI-induced myocardial free wall rupture (MFWR), and the patient recovered with spontaneous closure of the fissure and shrinkage of the LV pseudoaneurysm through non-surgical therapy. Based on the observations in the echocardiogram, we proposed that intermittent closing of the fissure and interruption of the blood flow between the LV and the pseudoaneurysm due to LV contraction alleviated stress change on the pseudoaneurysm. The narrow fissure, small pseudoaneurysm, and intermittently interrupted blood flow that benefit fissure healing and pseudoaneurysm stabilization could indicate the prognosis of this patient. Drugs like β-blocker that decreased the stress on the pseudoaneurysm also led to the risk reduction of pseudoaneurysm rupture. To our knowledge, this is the first case that reports a spontaneous closure of LV pseudoaneurysm. The size of the fissure and the pseudoaneurysm, as well as the corresponding hemodynamic state, could be valuable to evaluate the risk and prognosis of the pseudoaneurysm. Optimized medical management was also helpful to pseudoaneurysm stabilization.
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- 2022
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