6,098 results on '"Dan Zhao"'
Search Results
2. A dual-labeled dataset and fusion model for automatic teeth segmentation, numbering, and state assessment on panoramic radiographs
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Wenbo Zhou, Xin Lu, Dan Zhao, Meng Jiang, Linlin Fan, Weihang Zhang, Fenglin Li, Dezhou Wang, Weihuang Yin, and Xin Liu
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Deep learning ,Instance segmentation ,Classification ,Panoramic radiograph ,Teeth segmentation ,Dentistry ,RK1-715 - Abstract
Abstract Background Recently, deep learning has been increasingly applied in the field of dentistry. The aim of this study is to develop a model for the automatic segmentation, numbering, and state assessment of teeth on panoramic radiographs. Methods We created a dual-labeled dataset on panoramic radiographs for training, incorporating both numbering and state labels. We then developed a fusion model that combines a YOLOv9-e instance segmentation model with an EfficientNetv2-l classification model. The instance segmentation model is used for tooth segmentation and numbering, whereas the classification model is used for state evaluation. The final prediction results integrate tooth position, numbering, and state information. The model’s output includes result visualization and automatic report generation. Results Precision, Recall, mAP50 (mean Average Precision), and mAP50-95 for the tooth instance segmentation task are 0.989, 0.955, 0.975, and 0.840, respectively. Precision, Recall, Specificity, and F1 Score for the tooth classification task are 0.943, 0.933, 0.985, and 0.936, respectively. Conclusions This fusion model is the first to integrate automatic dental segmentation, numbering, and state assessment. It provides highly accurate results, including detailed visualizations and automated report generation.
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- 2024
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3. Secular variation and risk factors of preterm birth in Hainan, the Free Trade Port in China from 2010 to 2021
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Qing Luo, Weijia Wu, Chao Li, Anping Zhao, Dan Zhao, Chuican Huang, and Lichun Fan
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Preterm birth ,Risk factors ,Infant ,China ,The Free Trade Port ,Gynecology and obstetrics ,RG1-991 - Abstract
Abstract Objectives Preterm delivery rates have increased obviously worldwide over the past decade, yet reliable epidemiological studies on the incidence of preterm birth and temporal trends are not available in Hainan, The Free Trade Port in China. We aimed to describe the rate of preterm birth and trends between 2010 and 2021 and to primarily explore risk factors associated with preterm birth in Hainan, China. Methods This was an observational study was based on data from the Hainan Provincial Birth Certificate System (HPBCS) for live births between 1 January 2010 and 31 December 2021. We included pregnancies resulting in at least one live birth, with newborns born at a gestational age of 28 weeks or greater, or with a birth weight of 1000 g or more. The outcome were preterm birth rates and their trends over time. Potential risk factors were collected, including infant gender, maternal age, paternal age, maternal ethnicity, paternal ethnicity, home address, and single or multiple pregnancies. The logistic regression model was used to assess the relationship between preterm birth and potential risk factors. Results A total of 1,537,239 live births and 86,328 preterm births were investigated, giving a total preterm birth rate of 5.62%. The overall preterm birth rate increased from 4.47% in 2010 to 7.12% in 2021 (compound annual growth rate [CAGR] 4.32). The CAGR of late preterm birth is consistent with the overall preterm birth rate (4.32%). The fastest growth is observed in the rate of very preterm births (5.53%), while the rate of moderate preterm births exhibits the slowest growth (3.87%). Infant gender, multiple pregnancy, home address, parental age, and ethnicity had significant effects on preterm birth. Conclusion The preterm birth rate was increasing year by year from 2010 to 2021 in Hainan, The Free Trade Port in China. Incidence of preterm births in Hainan Province in relation to multiple pregnancies, infant sex, parental age, parental race and residential address.
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- 2024
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4. DNA vaccines against GPRC5D synergize with PD-1 blockade to treat multiple myeloma
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Praveen Neeli, Perry Ayn Mayson A. Maza, Dafei Chai, Dan Zhao, Xen Ping Hoi, Keith Syson Chan, Ken H. Young, and Yong Li
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Immunologic diseases. Allergy ,RC581-607 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Multiple myeloma (MM), a hematological malignancy of the bone marrow, remains largely incurable. The orphan G protein-coupled receptor, GPRC5D, which is uniquely expressed in plasma cells and highly expressed in MM, is a compelling candidate for immunotherapy. In this study, we investigated the efficacy of a combination of DNA vaccine encoding mouse GPRC5D and PD-1 blockade in preventing and treating MM using the 5TGM1 murine model of MM. The mouse vaccine alone was effective in preventing myeloma growth but required PD-1 antibodies to inhibit established MM tumors. We next evaluated the prophylactic and therapeutic efficacy of a nanoplasmid vector encoding human GPRC5D in several murine syngeneic tumor models. Similar results for tumor inhibition were observed, as human GPRC5D-specific T cells and antibodies were induced by DNA vaccines. Taken together, these findings underscore the potential of GPRC5D-targeted DNA vaccines as versatile platforms for the treatment and prevention of MM.
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- 2024
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5. Effectiveness of inactivated COVID-19 vaccines in preventing COVID-19-related hospitalization during the Omicron BF.7-predominant epidemic wave in Beijing, China: a cohort study
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Dan Zhao, Ying Sun, Juan Li, Xiaomei LI, Ying Ma, Zhiqiang Cao, Jiaojiao Zhang, Jiaxin Ma, Jia Li, Quanyi Wang, Luodan Suo, Daitao Zhang, and Peng Yang
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COVID-19 ,Inactivated vaccine ,Vaccine effectiveness ,Hospitalization ,Cohort study ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background To estimate vaccine effectiveness(VE) against COVID-19-related hospitalization for inactivated vaccines during the Omicron BF.7-predominant epidemic wave in Beijing, China. Methods We recruited a cohort in Beijing on 17 and 18 December 2022, collected status of vaccination and COVID-19-related hospitalization since 1 November 2022 and prospectively followed until 9 January 2023. A Poisson regression model was used to estimate the VE. Results 16(1.15%) COVID-19-related hospitalizations were reported in 1391 unvaccinated participants; 7(0.25%) in 2765 participants with two doses, resulting in a VE of 70.89%(95% confidence interval[CI] 26.25 to 87.73); 32(0.27%) in 11,846 participants with three doses, with a VE of 65.25%(95% CI 32.24 to 81.83). The VE of three doses remained above 64% at 1 year or more since the last dose. Elderly people aged ≥ 60 years had the highest hospitalization incidence(0.66%), VE for two doses was 74.11%(95%CI: − 18.42 to 94.34) and VE for three doses was 80.98%(95%CI:52.83 to 92.33). We estimated that vaccination had averted 65,007(95%CI: 12,817 to 97,757) COVID-19-related hospitalizations among people aged ≥ 60 years during the BF.7-predominant period in Beijing. Conclusion Inactivated COVID-19 vaccines were effective against COVID-19-related hospitalization, especially for the elderly population who have increased risk of severe disease owing to SARS-CoV-2 infection.
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- 2024
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6. The mediating effect of sleep quality on solid cooking fuel use and psychological distress among rural older adults: evidence from Shandong, China
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Jingjing Luo, Dan Zhao, Tingting Gao, Xuehong Wang, Xueqing Wang, Shujun Chai, Jiayan Li, and Chengchao Zhou
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Solid fuels ,Psychological distress ,Sleep quality ,Older adults ,Geriatrics ,RC952-954.6 - Abstract
Abstract Background Exposure to indoor air pollution from solid cooking fuel use may increase mental disorders risk through pathways such as oroxidative stress, neuroinflammation, or cerebrovascular damage. However, few studies have explored the underlying mechanism between solid cooking fuel use and psychological distress. The present study aims to investigate the mediating role of sleep quality on the relationship between solid cooking fuel use and psychological distress among older adults in rural Shandong, China. Methods This study used the cross-sectional data from the second follow-up survey of the Shandong Rural Elderly Health Cohort (SREHC). A total of 3,240 rural older adults were included in the analysis. Logistic regression and the Karlson, Holm, and Breen (KHB) mediation analyses were performed to investigate the relationship between solid cooking fuel use and psychological distress, as well as the mediating role of sleep quality in this association. Results This study found that solid cooking fuel use was significantly and positively associated with psychological distress among older adults in rural Shandong, China (OR = 1.38, 95% CI: 1.12,1.70). Mediation analysis revealed that sleep quality mediated the association between solid cooking fuel use and psychological distress among older adults (β = 0.06, P = 0.011). The mediation effect accounted for 16.18% of the total effect. Conclusions Our study showed that solid cooking fuel use was associated with psychological distress among rural older adults, and sleep quality mediated this association. Interventions should focus on addressing cooking fuel types and poor sleep quality to reduce psychological distress. In the future, more aggressive environmental protection policies would be needed to lessen the adverse effects of indoor air pollution on the health of older adults in rural China.
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- 2024
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7. Does contracting family doctor promote primary healthcare utilization among older adults? - evidence from a difference-in-differences analysis
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Peipei Fu, Yi Wang, Dan Zhao, Shijun Yang, and Chengchao Zhou
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Family doctor contracted services ,Healthcare utilization ,Difference in differences ,Rural China ,Geriatrics ,RC952-954.6 - Abstract
Abstract Introduction In 2016, the Chinese government officially scaled up family doctor contracted services (FDCS) scheme to guide patients’ health seeking behavior from tertiary hospitals to primary health facilities. Methods This study evaluated the overall gate-keeping effects of this scheme on healthcare utilization of rural residents by using a difference-in-differences (DiD) design. The analysis was based on Shandong Rural Elderly Health Cohort 2019 and 2020. Participants who contracted FDCS in second round and were not contracted with a family doctor in the first round were regarded as treatment group. In total, 310 respondents who have used medical care were incorporated for final study. Results Participants who contracted FDCS (treatment group) experienced a significant decline in the mean level of first-contact health-care facilities, decreasing from 2.204 to 1.981. In contrast, participants who did not contract FDCS (control group), showed an increasing trend in the mean level of first-contact health-care facilities, rising from 2.128 to 2.445. Our results showed that contracting FDCS is associated with approximately 0.54 extra lower mean level of first-contact health-care facilities (P = 0.03, 95% CI: -1.03 to 0.05), which suggests an approximately 24.5% reduction in the mean first-contact health-care facility level for participants compared with contracted FDCS than those who did not. Conclusions The study suggested primary healthcare quality should be strengthened and restrictive first point of contact policy should be enacted to establish ordered healthcare seeking behavior among rural residents.
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- 2024
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8. Temperature seasonality and soil phosphorus availability shape ginseng quality via regulating ginsenoside contents
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Dehua Wu, Feng Xiong, Hongyang Wang, Siqi Liu, Jitong Zhu, Dan Zhao, Jian Yang, Wenqi Ma, Lanping Guo, and Chuanzhi Kang
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Panax gingseng ,Ginsenoside ,Environmental factors ,Secondary metabolite ,Botany ,QK1-989 - Abstract
Abstract The accumulation of secondary metabolites in Panax ginseng Meyer (P. ginseng) exhibits significant geographical variation, normally due to environmental factors. The current study aimed at elucidating the key environmental factors modulating the accumulation of secondary metabolites in P. ginseng. Plant and the associated soil samples were collected from ten geographical locations within the latitudinalrange of 27.09°N − 42.39°N and longitudinal range of 99.28°E − 128.19°E. 12 secondary metabolites in P. ginseng toots were measured. And the correlation between secondary metabolites with a series of soil properties and 7 climatic factors were investigated through Pearson’s correlation, mantel test, random forest and pathway analysis. The results revealed that climatic factors were stronger drivers of ginseng secondary metabolite profile than soil nutrients. Specifically, temperature seasonality (TS) and soil available phosphorus (AP) were the most effective environments to have significantly and positively influence on the secondary metabolites of ginseng. This findings contribute to identifying optimal cultivation areas for P. ginseng, and hopefully establishing methods for interfering/shaping microclimate for cultivating high-quality P. ginseng.
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- 2024
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9. Integrative microbiome and metabolome profiles reveal the impacts of periodontitis via oral-gut axis in first-trimester pregnant women
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Tianfan Cheng, Ping Wen, Rong Yu, Feng Zhang, Huijun Li, Xiaoyi Xu, Dan Zhao, Fang Liu, Weilan Su, Zheng Zheng, Hong Yang, Jilong Yao, and Lijian Jin
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Periodontitis ,Pregnancy ,Microbiome ,Metabolome ,Gut ,Integrative analysis ,Medicine - Abstract
Abstract Background Periodontitis results from host-microbe dysbiosis and the resultant dysregulated immunoinflammatory response. Importantly, it closely links to numerous systemic comorbidities, and perplexingly contributes to adverse pregnancy outcomes (APOs). Currently, there are limited studies on the distal consequences of periodontitis via oral-gut axis in pregnant women. This study investigated the integrative microbiome-metabolome profiles through multi-omics approaches in first-trimester pregnant women and explored the translational potentials. Methods We collected samples of subgingival plaques, saliva, sera and stool from 54 Chinese pregnant women at the first trimester, including 31 maternal periodontitis (Perio) subjects and 23 Non-Perio controls. By integrating 16S rRNA sequencing, untargeted metabolomics and clinical traits, we explored the oral-gut microbial and metabolic connection resulting from periodontitis among early pregnant women. Results We demonstrated a novel bacterial distinguisher Coprococcus from feces of periodontitis subjects in association with subgingival periodontopathogens, being different from other fecal genera in Lachnospiraceae family. The ratio of fecal Coprococcus to Lachnoclostridium could discriminate between Perio and Non-Perio groups as the ratio of subgingival Porphyromonas to Rothia did. Furthermore, there were differentially abundant fecal metabolic features pivotally enriched in periodontitis subjects like L-urobilin and kynurenic acid. We revealed a periodontitis-oriented integrative network cluster, which was centered with fecal Coprococcus and L-urobilin as well as serum triglyceride. Conclusions The current findings about the notable influence of periodontitis on fecal microbiota and metabolites in first-trimester pregnant women via oral-gut axis signify the importance and translational implications of preconceptional oral/periodontal healthcare for enhancing maternal wellbeing.
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- 2024
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10. Electrically tunable infrared optics enabled by flexible ion-permeable conducting polymer-cellulose paper
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Chaoyang Kuang, Shangzhi Chen, Mingna Liao, Aiman Rahmanudin, Debashree Banerjee, Jesper Edberg, Klas Tybrandt, Dan Zhao, and Magnus P. Jonsson
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Electronics ,TK7800-8360 ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
Abstract Materials that provide dynamically tunable infrared (IR) response are important for many applications, including active camouflage and thermal management. However, current IR-tunable systems often exhibit limitations in mechanical properties or practicality of their tuning modalities, or require complex and costly fabrication methods. An additional challenge relates to providing compatibility between different spectral channels, such as allowing an object to be reversibly concealed in the IR without making it appear in the visible range. Here, we demonstrate that conducting polymer-cellulose papers, fabricated through a simple and cheap approach, can overcome such challenges. The papers exhibit IR properties that can be electrochemically tuned with large modulation (absolute emissivity modulation of 0.4) while maintaining largely constant response in the visible range. Owing to high ionic and electrical conductivity, the tuning of the top surface can be performed electrochemically from the other side of the paper even at tens of micrometer thicknesses, removing the need for overlaying electrode and electrolyte in the optical beam path. These features enabled a series of electrically tunable IR devices, where we focus on demonstrating dynamic radiative coolers, thermal camouflage, anti-counterfeiting tags, and grayscale IR displays. The conducting polymer-cellulose papers are sustainable, cheap, flexible and mechanically robust, providing a versatile materials platform for active and adaptive IR optoelectronic devices.
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- 2024
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11. Experimental and crystal plasticity finite element study of dynamic shear behavior of CoCrNiSi0.3 medium-entropy alloy
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Huiqing Fang, Dan Zhao, Wenjun Wu, Guang Hu, Tao Jin, Ji Qiu, Jianjun Wang, Shengguo Ma, Tuanwei Zhang, and Zhihua Wang
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Medium-entropy alloys ,Dynamic shear behavior ,Dislocation density-based crystal plasticity ,Micro-scale damage ,Mining engineering. Metallurgy ,TN1-997 - Abstract
Single-phase CrCoNi-based medium-entropy alloys (MEAs) have garnered considerable attention as a promising class of metallic materials. However, despite this growing interest, the dynamic mechanical response of CrCoNi-based MEAs at high strain rate remains controversial. The dynamic shear mechanical behavior of CoCrNiSi0.3 was characterized through Hopkinson-bar experiment utilizing hat-shaped specimen. In this study, a damage model based on the maximum shear strain of each slip system was chosen to describe the damage initiation and evolution. Combined with this micro-scale damage and dislocation density-based crystal plasticity theory, two constitutive models were proposed to perform predictions of the dynamic shear behavior of CoCrNiSi0.3. The strain rate effect, adiabatic temperature rising, damage evolution, and twin volume fraction during dynamic shear deformation were tracked by investigating the influence of resolved shear stress, dislocation density, texture evolution, and twinning systems shear strain. The presented model effectively predicts the deformation state of specimen, the formation and evolution of Adiabatic Shear Bands (ASBs), and the variations in strain rate and temperature at different locations within the shear region. Adiabatic Shear Bands and texture evolution are caused by the local dislocation density rising and misorientation distributions.
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- 2024
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12. A scoring system based on inflammatory and nutritional indicators to predict the long-term survival of patients with non-metastatic nasopharyngeal carcinoma
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Wei-ning Fang, Hai-xia Wu, Zhu-peng Wu, Zhao-dong Fei, Dan Zhao, Fei Chen, Cheng Lin, and Li-qin Ma
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Nasopharyngeal carcinoma ,Inflammatory indicators ,Nutritional status ,Inflammation-nutrition risk score ,Prognosis assessment ,Medicine ,Science - Abstract
Abstract To develop a simple scoring system based on baseline inflammatory and nutritional markers to predict the long-term prognosis of patients with nasopharyngeal carcinoma (NPC). Conducted a retrospective analysis of clinical data from 1024 newly diagnosed non-metastatic NPC patients. A total of 15 pre-treatment inflammatory and nutritional markers were collected as candidate variables. Receiver operating characteristic (ROC) curves were used to determine the optimal cutoff points for each parameter. Survival analysis was performed using Kaplan–Meier method and Cox regression analysis. Besides, the Inflammation Nutrition Risk Score (INRS) was calculated for each patient by assigning each independent prognostic factor a score of 1. Multivariate Cox regression analysis showed that serum albumin (ALB), systemic immune-inflammation index, and monocyte count (M) were independent prognostic factors for OS (P
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- 2024
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13. Assessing teleconnection influences on the spatial and temporal patterns of meteorological drought in Northwest China
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Akinwale T. Ogunrinde, Xue Xian, Paul Adigun, Ifeoluwa S. Adawa, Dan Zhao, Zhanghong Xing, and Igbekoyi J. Temitope
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Trend analysis ,wavelet analysis ,global climate indices ,drought index ,change point detection ,Geography. Anthropology. Recreation ,Geology ,QE1-996.5 - Abstract
This study delves into the complex relationship between teleconnection patterns and meteorological drought in Northwest China, highlighting the crucial influence of global circulation indices on regional drought dynamics. By analyzing precipitation and temperature data from 1962 to 2022 using the CN05.1 datasets and incorporating various global circulation indices, the study employs the Standardized Precipitation Evapotranspiration Index (SPEI) to delineate drought conditions. Utilizing the Modified Mann-Kendall test and segmented models for trend and change point detection, along with cross wavelet transforms (XWT) and wavelet coherence (WTC) analysis to examine the impact of 15 global circulation indices, the study uncovers significant spatial and temporal climatic variations. Findings indicate a significant increase in temperature and precipitation, with March-April-May (MAM) season showing pronounced drought severity mainly due to a significant temperature rise with a value of 0.0420 °C/year. Change point analysis reveals pivotal shifts in climate, highlighting the region’s susceptibility to climate change. The study identified strong correlations between drought occurrences and global circulation indices like the Artic Oscillation (AO), Atlantic Multidecadal Oscillation (AMO), Pacific Decadal Oscillation (PDO) and the Southern Oscillation Index (SOI), especially within a 4–8 year timeframe, pointing to the significant role of teleconnections in affecting local drought conditions. These insights are vital for formulating effective drought management and climate adaptation strategies in arid and semi-arid regions, offering valuable guidance for policymakers and researchers focused on improving water resource management and enhancing climate resilience in such vulnerable environments.
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- 2024
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14. Thermoacoustic heat pump utilizing medium/low-grade heat sources for domestic building heating
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Yiwei Hu, Kaiqi Luo, Dan Zhao, Zhanghua Wu, Yupeng Yang, Ercang Luo, and Jingyuan Xu
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Thermoacoustic heat pump ,Thermodynamics ,Heat pump ,Medium/low-grade heat ,Domestic heating ,Environmental technology. Sanitary engineering ,TD1-1066 ,Building construction ,TH1-9745 - Abstract
Thermoacoustic heat pumps are a promising heating technology that utilizes medium/low-grade heat to reduce reliance on electricity. This study proposes a single direct-coupled configuration for a thermoacoustic heat pump, aimed at minimizing system complexity and making it suitable for domestic applications. Numerical investigations were conducted under typical household heating conditions, including performance analysis, exergy loss evaluation, and axial distribution of key parameters. Results show that the proposed thermoacoustic heat pump achieves a heating capacity of 5.7 kW and a coefficient of performance of 1.4, with a heating temperature of 300 °C and a heat-sink temperature of 55 °C. A comparison with existing absorption heat pumps reveals favorable adaptability for large temperature lift applications. A case study conducted in Finland over an annual cycle analyzes the economic and environmental performance of the system, identifying two distinct modes based on the driving heat source: medium temperature (≥250 °C) and low temperature (
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- 2024
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15. Association between weight-adjusted waist index and risk of diabetes mellitus type 2 in United States adults and the predictive value of obesity indicators
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XinMeng Li, Dan Zhao, and Hongkun Wang
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Weight-adjusted-waist index ,Diabetes mellitus type 2 ,Obesity ,NHANES ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The weight-adjusted waist index (WWI) is a quantitative anthropometric index that can be applied to evaluate obesity. This study examined the relationship between adult United States (US) residents’ risk of diabetes mellitus type 2 (T2DM) and WWI. Methods The NHANES (National Health and Nutrition Examination Survey) 2001–2018 provided the data for this investigation. This study used multifactorial logistic regression analysis, smoothed curve fitting, subgroup analysis, and interaction tests to assess the association between WWI and T2DM. Additionally, threshold effects were calculated using a two-stage linear regression model. The receiver operating characteristic(ROC) curves evaluated the diagnostic ability of the WWI and commonly used obesity indicators. Results 20,477 participants were enrolled in the analysis, and patients with greater levels of WWI had a higher prevalence of T2DM. WWI and T2DM have a non-linear relationship, with a positive association found on the left side of the breakpoint (WWI = 12.35) (OR = 1.82, 95%CI:1.64–2.02), whereas, on the right side, no such relationship was found (OR = 0.9, 95%CI:0.61–1.34). For every unit rise in WWI, the probability of having T2DM increased by 67% after controlling for all other variables (OR:1.67,95%CI:1.53–1.83). Based on subgroup analyses, individuals under 40 had a higher correlation between WWI and T2DM (P
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- 2024
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16. An excellent combination of strength and ductility via hierarchical precipitation structures in Co-free medium-entropy alloys
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Jiaxin Zhang, Shengguo Ma, Xiaoxiao Liu, Junwei Qiao, Jianjun Wang, Dan Zhao, Zhiming Jiao, Tuanwei Zhang, Bin Xu, and Zhihua Wang
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Medium-entropy alloy ,Precipitation strengthening ,Strain-hardening behavior ,Mining engineering. Metallurgy ,TN1-997 - Abstract
A Co-free non-equiatomic Ni2·5CrFeAl0·25Ti0.25 medium-entropy alloy (MEA) with an excellent strength-ductility synergy was fabricated, which shows a multiphase structure composed of face-centered cubic (FCC), L12 (ordered FCC), and Cr-rich body-centered cubic (BCC) phase by thermomechanical processing. Specifically, the aged sample displays the outstanding yield tensile strength (YTS, ∼1188 MPa), ultimate tensile strength (UTS, ∼1560 MPa) and work-hardening rate (WHR, ∼4.5 GPa) values as well as an acceptable plasticity of ∼16.6%. Theoretical calculations suggest that precipitation strengthening significantly contributes to achieving the fascinating tensile strength among various strengthening contributors. Further analyses reveal that multiple nanoscale stacking-fault (SF) networks are activated during plastic deformation in the aged alloy. Accordingly, the dual effects consisting of the hierarchical precipitation structure and SF networks lead to the combination of excellent tensile strength and strain-hardening capacity.
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- 2024
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17. Effect of Resistant Starch on the Physicochemical Properties and Structure of Sweet Potato Starch Noodles
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Xueli GAO, Dan ZHAO, Guanghui LI, Yonghui WANG, Shenghua HE, Jihong HUANG, Heqing ZHANG, and Weiyun GUO
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resistant starch ,noodle ,physicochemical properties ,structure ,digestive performance ,Food processing and manufacture ,TP368-456 - Abstract
In order to investigate the effects of adding corn resistant starch (CRS) and sweet potato resistant starch (SRS) to starch noodles (SNs) on their physicochemical properties and structural quality, the changes in texture quality, breakage rate, sensory quality, microstructure, and in vitro digestibility of the two types of resistant starch noodles (RSNs) prepared with resistant starch (RS) added at 5.0, 7.5, 10.0, 12.5 and 15.0 g/100 g, respectively were measured. The results showed that the hardness and chewiness of corn resistant starch noodles (CRSNs) are higher than those of sweet potato resistant starch noodles (SRSNs) when the amounts of the two RSes added are the same, and the hardness and chewiness of both RSNs showed a decreasing trend when the addition amount of RS increases. The increase in the amount of RS added had a significant (P
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- 2024
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18. The efficacy of lumbar erector spinae plane block for postoperative analgesia management in patients undergoing lumbar unilateral bi-portal endoscopic surgery: a prospective randomized controlled trial
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Dan Zhao, Hongkun Wang, Xin Liu, Zhenfeng Gao, Chao Sun, and Quanyi Zhang
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Lumbar ,Erector spinae plane block ,Unilateral bi-portal endoscopic ,Quality of recovery ,Postoperative analgesia management ,Anesthesiology ,RD78.3-87.3 - Abstract
Abstract Background The efficacy and reliability of erector spinae plane block (ESPB) in posterior open lumbar spine surgery has been demonstrated; however, few randomized controlled trials of lumbar ESPB (L-ESPB) in lumbar unilateral bi-portal endoscopic (UBE) surgery have been reported. Methods A total of 120 patients, aged 18 to 65 (who underwent elective lumbar UBE surgery under general anesthesia and exhibited an American Society of Anesthesiologists physical status of I to III) were randomly assigned in a 1:1 ratio to the ESPB group and the Control group. Ultrasound(US)-guided unilateral single-shot 0.25% ropivacaine L-ESPB was performed in the ESPB group, but not in the control group. Postoperative analgesic strategy for all patients: patient controlled intravenous analgesia (PCIA, diluted and dosed with fentanyl alone) was initiated immediately after surgery combined with oral compound codeine phosphate and ibuprofen sustained release tablets (1 tablet containing ibuprofen 200 mg and codeine 13 mg, 1 tablet/q12h) commenced 6 h postoperatively. We collected and compared patient-centred correlates intraoperatively and 48 h postoperatively. The primary outcomes were intraoperative and postoperative opioid consumption and postoperative quality of recovery-15 (QoR-15) scores. Results Compared to the control group (n = 56), the ESPB group (n = 58) significantly reduced intraoperative remifentanil consumption (estimated median difference − 280 mcg, 95% confidence interval [CI] − 360 to − 200, p
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- 2024
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19. Spatial iTME analysis of KRAS mutant NSCLC and immunotherapy outcome
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Dan Zhao, Haiqing Li, Isa Mambetsariev, Tamara Mirzapoiazova, Chen Chen, Jeremy Fricke, Deric Wheeler, Leonidas Arvanitis, Raju Pillai, Michelle Afkhami, Bihong T. Chen, Martin Sattler, Loretta Erhunmwunsee, Erminia Massarelli, Prakash Kulkarni, Arya Amini, Brian Armstrong, and Ravi Salgia
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract We conducted spatial immune tumor microenvironment (iTME) profiling using formalin-fixed paraffin-embedded (FFPE) samples of 25 KRAS-mutated non-small cell lung cancer (NSCLC) patients treated with immune checkpoint inhibitors (ICIs), including 12 responders and 13 non-responders. An eleven-marker panel (CD3, CD4, CD8, FOXP3, CD68, arginase-1, CD33, HLA-DR, pan-keratin (PanCK), PD-1, and PD-L1) was used to study the tumor and immune cell compositions. Spatial features at single cell level with cellular neighborhoods and fractal analysis were determined. Spatial features and different subgroups of CD68+ cells and FOXP3+ cells being associated with response or resistance to ICIs were also identified. In particular, CD68+ cells, CD33+ and FOXP3+ cells were found to be associated with resistance. Interestingly, there was also significant association between non-nuclear expression of FOXP3 being resistant to ICIs. We identified CD68dim cells in the lung cancer tissues being associated with improved responses, which should be insightful for future studies of tumor immunity.
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- 2024
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20. A Bayesian network for estimating hypertension risk due to occupational aluminum exposure
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Le Zhao, Jinzhu Yin, Jiaping Huan, Xiao Han, Dan Zhao, Jing Song, Linping Wang, Huifang Zhang, Baolong Pan, Qiao Niu, and Xiaoting Lu
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Bayesian networks ,hypertension ,occupational aluminum exposure ,Medicine (General) ,R5-920 - Abstract
Abstract Background The correlation between metals and hypertension, such as sodium, zinc, potassium, and magnesium, has been confirmed, while the relationship between aluminum and hypertension is not very clear. This study aimed to evaluate the correlation between plasma aluminum and hypertension in electrolytic aluminum workers by the Bayesian networks (BN). Methods In 2019, 476 male workers in an aluminum factory were investigated. The plasma aluminum concentration of workers was measured by inductively coupled plasma mass spectrometry. The influencing factors on the prevalence of hypertension were analyzed by the BN. Results The prevalence of hypertension was 23.9% in 476 male workers. The risk of hypertension from plasma aluminum in the Q2, Q3, and Q4 groups was 5.20 (1.90–14.25), 6.92 (2.51–19.08), and 7.33 (2.69–20.01), respectively, compared with that in the Q1 group. The risk of hypertension from the duration of exposure to aluminum of >10 years was 2.23 (1.09–4.57), compared without aluminum exposure. Area under the curve was 0.80 of plasma aluminum and the duration of exposure to aluminum was based on covariates, indicating that aluminum exposure had important predictive value in the prevalence of hypertension in the occupational population. The results of the study using the BN model showed that if the plasma aluminum of all participants was higher than Q4 (≥47.86 µg/L) and the participants were drinking, smoking, diabetes, central obesity, dyslipidemia, and aged >50 years, the proportion of hypertension was 71.2%. Conclusions The prevalence of hypertension increased significantly with the increase of plasma aluminum level.
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- 2024
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21. Benchmarking compound activity prediction for real-world drug discovery applications
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Tingzhong Tian, Shuya Li, Ziting Zhang, Lin Chen, Ziheng Zou, Dan Zhao, and Jianyang Zeng
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Chemistry ,QD1-999 - Abstract
Abstract Identifying active compounds for target proteins is fundamental in early drug discovery. Recently, data-driven computational methods have demonstrated promising potential in predicting compound activities. However, there lacks a well-designed benchmark to comprehensively evaluate these methods from a practical perspective. To fill this gap, we propose a Compound Activity benchmark for Real-world Applications (CARA). Through carefully distinguishing assay types, designing train-test splitting schemes and selecting evaluation metrics, CARA can consider the biased distribution of current real-world compound activity data and avoid overestimation of model performances. We observed that although current models can make successful predictions for certain proportions of assays, their performances varied across different assays. In addition, evaluation of several few-shot training strategies demonstrated different performances related to task types. Overall, we provide a high-quality dataset for developing and evaluating compound activity prediction models, and the analyses in this work may inspire better applications of data-driven models in drug discovery.
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- 2024
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22. From Static to Dynamic Structures: Improving Binding Affinity Prediction with Graph‐Based Deep Learning
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Yaosen Min, Ye Wei, Peizhuo Wang, Xiaoting Wang, Han Li, Nian Wu, Stefan Bauer, Shuxin Zheng, Yu Shi, Yingheng Wang, Ji Wu, Dan Zhao, and Jianyang Zeng
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binding affinity ,drug discovery ,graph transformer ,molecular dynamics ,Science - Abstract
Abstract Accurate prediction of protein‐ligand binding affinities is an essential challenge in structure‐based drug design. Despite recent advances in data‐driven methods for affinity prediction, their accuracy is still limited, partially because they only take advantage of static crystal structures while the actual binding affinities are generally determined by the thermodynamic ensembles between proteins and ligands. One effective way to approximate such a thermodynamic ensemble is to use molecular dynamics (MD) simulation. Here, an MD dataset containing 3,218 different protein‐ligand complexes is curated, and Dynaformer, a graph‐based deep learning model is further developed to predict the binding affinities by learning the geometric characteristics of the protein‐ligand interactions from the MD trajectories. In silico experiments demonstrated that the model exhibits state‐of‐the‐art scoring and ranking power on the CASF‐2016 benchmark dataset, outperforming the methods hitherto reported. Moreover, in a virtual screening on heat shock protein 90 (HSP90) using Dynaformer, 20 candidates are identified and their binding affinities are further experimentally validated. Dynaformer displayed promising results in virtual drug screening, revealing 12 hit compounds (two are in the submicromolar range), including several novel scaffolds. Overall, these results demonstrated that the approach offer a promising avenue for accelerating the early drug discovery process.
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- 2024
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23. Anisotropic Spin Fluctuations Induced by Spin‐Orbit Coupling in a Misfit Layer Compound (LaSe)1.14(NbSe2)
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Min Shan, Shunjiao Li, Ye Yang, Dan Zhao, Jian Li, Linpeng Nie, Zhimian Wu, Yanbing Zhou, Lixuan Zheng, Baolei Kang, Tao Wu, and Xianhui Chen
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2D transition metal dichalcogenides ,misfit layer compounds ,spin fluctuations ,spin‐orbit coupling ,weak antilocalization effect ,Science - Abstract
Abstract Spin‐orbit coupling (SOC) has significant effects on the superconductivity and magnetism of transition metal dichalcogenides (TMDs) at the 2D limit. Although 2D TMD samples possess many exotic properties different from those of bulk samples, experimental characterization in this field is still limited, especially for magnetism. Recent studies have revealed that bulk misfit layer compounds (MLCs) with (LaSe)1.14(NbSe2)n = 1,2 exhibit an Ising superconductivity similar to that of heavily electron‐doped NbSe2 monolayers. This offers an opportunity to study the effect of SOC on the magnetism of 2D TMDs. Here, the possible SOC effect in (LaSe)1.14(NbSe2) is investigated by measuring nuclear magnetic resonance (NMR) and electrical transport. It is found that the LaSe layer not only functions as a charge reservoir for transferring electrons into the NbSe2 layer but also remarkably influences the local electronic environment around the 93Nb nuclei. More importantly, the significant SOC induces both a weak antilocalization (WAL) effect and anisotropic spin fluctuations in noncentrosymmetric NbSe2 layers. The present work contributes to a deep understanding of the role of the SOC effect in 2D TMDs and supports MCLs as an intriguing platform for exploring exotic physical properties within the 2D limit.
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- 2024
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24. Utility of Circulating Tumor DNA Assay in Identifying Mutations and Guiding Matched Targeted Therapy in Lung Cancers
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Kun Li, Nana Zhang, Bing Xu, Zichen Liu, Dan Zhao, Yujie Dong, Jing Mu, Haifeng Lin, Guangyu Shan, Sihang Gao, Bo Yu, Xiaoxi Pan, Yanrong Wang, Dongxing Zhang, Nanying Che, and Xiaoyong Ji
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background: Tumor genomic profiling has a significant impact on the selection of targeted therapy. Circulating tumor DNA (ctDNA) has emerged as a noninvasive, and reproducible assay compared with tissue biopsy. We aimed to evaluate its utility in identifying mutations and guiding targeted therapy for lung cancer. Methods: A total of 173 lung cancer patients underwent next-generation sequencing (NGS) using a targeted enrichment panel covering 20 lung cancer-related genes. The performance of the ctDNA NGS assay in identifying genetic mutations or alterations was compared with tissue biopsy and droplet digital PCR (ddPCR). The treatment response to epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) therapies based on the ctDNA assay results was also assessed. Results: The ctDNA was detected in 61.85% of patients. Tissue mutations were detected in paired ctDNA in 38.57% of cases, while ctDNA mutations were detected in paired tissues in 89.1% of cases. The ctDNA increased the number of advanced non-small cell lung cancer (NSCLC) patients who received NCCN-recommended genetic testing by 12%. The concordance between ddPCR and ctDNA was relatively high reaching 99.43%. EGFR T790M/C797S c.G2390C and EGFR T790M/C797S c.T2389A were detected in tissue and ctDNA, respectively, in patient 01015. Moreover, ctDNA assay identified the EGFR T790M mutation, which was missed by tissue biopsy in patient 01149, who developed drug resistance after 1 year of EGFR-TKI therapy. Of the 17 patients who received EGFR-TKI targeted therapies based on the ctDNA NGS results, 12 patients achieved a partial response and two patients had stable disease. Conclusions: The results demonstrated that the ctDNA assay could partially overcome tumor heterogeneity in detecting mutations and provide complementary information on tumor genomic profiles. Moreover, the presence of EGFR mutations in ctDNA could offer valuable guidance for selecting appropriate EGFR-TKI treatment for advanced lung cancer patients. However, it is important to note that the ctDNA NGS assay has certain limitations in fully identifying all genomic alterations present in the tumor.
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- 2024
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25. Atomic‐iodine‐substituted polydiacetylene nanospheres with boosted intersystem crossing and nonradiative transition through complete radiative transition blockade for ultraeffective phototherapy
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Dan Zhao, Lingling Zhang, Mingming Yin, Zhenyan He, Fang Fang, Minle Zhan, Sidan Tian, Fanling Meng, and Liang Luo
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blocked fluorescence emission ,heavy atom effect ,morphology transformation ,phototherapy ,polydiacetylene aggregate ,Chemistry ,QD1-999 ,Biology (General) ,QH301-705.5 - Abstract
Abstract The energy dissipation pathways of a photosensitizer for phototherapies, including photodynamic therapy (PDT) and photothermal therapy (PTT), compete directly with that of its fluorescence (FL) emission. Enriching heavy atoms on the π‐conjugated systems and aggregation‐caused quenching are two effective methods to turn off the FL emission of photosensitizers, which is expected to boost the intersystem crossing (for PDT) and nonradiative transition (for PTT) of photosensitizers for maximized phototherapeutic efficacy. Following this approach, an all‐iodine‐substituted polydiacetylene aggregate poly(diiododiacetylene) (PIDA) has been developed, which shows a superior near infrared absorption (ε808nm = 26.1 g−1 cm−1 L) with completely blocked FL, as well as high efficiency of reactive oxygen species generation (nearly 45 folds of indocyanine green) and photothermal conversion (33.4%). To make the insoluble fibrillar PIDA aggregates favorable for systemic administration, they are converted into nanospheres through a pre‐polymerization morphology transformation strategy. The in vivo study on a 4T1 tumor‐bearing mouse model demonstrates that PIDA nanospheres can almost eliminate the tumor entirely in 16 days and prolong the survival time of mice to over 60 days, validating their effective phototherapeutic response through the strategy of inhibiting FL for boosted intersystem crossing and nonradiative transition.
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- 2024
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26. Effectiveness of digital health interventions in improving mental health of older adults with mild cognitive impairment: A systematic review and meta-analysis protocol
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An Huang, Xueqi Liu, An Gu, Dan Zhao, Cheng Huang, and Lina Wang
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Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Background Mental health issues are highly prevalent in older adults with mild cognitive impairment (MCI). Digital Health Interventions (DHIs) for individuals with MCI have proven effective in improving cognitive function, but their impact on mental health has received less attention. Objective Reporting a protocol for a systematic review and meta-analysis to evaluate the effectiveness of DHIs for older adults with MCI, focusing on mental health outcomes both overall and within homogeneous subgroups. Methods A systematic review and meta-analysis of randomized controlled trials will be conducted, with searches performed in the Cochrane Library, PubMed, Embase, Web of Science, CINAHL, CNKI, and WanFang date from inception to March 2024. Mental health outcomes are the primary outcome. Risk of bias will be assessed with the Cochrane Collaboration tool, and evidence quality will be evaluated with Grading of Recommendations Assessment, Development, and Evaluation. If sufficient studies are available, subgroup analysis will assess variations based on population and intervention characteristics, including types and modalities of DHIs, intervention settings, session frequency, and duration, focusing on specific mental health outcomes and both short- and long-term effects. Additionally, sensitivity analysis and meta-regression analysis will identify sources of other potential heterogeneity. Conclusion The protocol will guide a systematic review and meta-analysis to determine the effectiveness of DHIs in improving mental health of older adults with MCI. This effort will enhance understanding and optimization of DHIs, vital for reducing mental health disparities and improving psychotherapy access for older adults with MCI. PROSPERO registration number CRD42024522342
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- 2024
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27. Acoustic cavitation-induced microstructure evolution in ultrasonically brazed Al/Cu joints using Zn-Al alloy fillers
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Dan Zhao, Dan Li, Yong Xiao, Mingyu Li, and Wen Chen
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Al/Cu joint ,Zn-Al alloy ,Acoustic cavitation ,Interfacial reaction ,Tensile strength ,Chemistry ,QD1-999 ,Acoustics. Sound ,QC221-246 - Abstract
Tailoring the phase constitutions of the interfacial reaction layers under the assistance of ultrasonic vibration is a convenient method to fabricate high-strength Al/Cu brazing joints. In this study, 1060-Al and T2-Cu dissimilar metals were ultrasonically brazed with Zn-3Al (wt. %) filler metals. Effects of ultrasonic brazing time on the microstructure and mechanical properties of joints were investigated. Results showed that the CuZn5 intermetallic compound (IMC) layer and Cu-based diffusion layer were created on the Cu substrate surface in the joint ultrasonically brazed at 400 ℃ for 2 s. However, the CuZn5 IMC layer was gradually transformed into a thin Al4.2Cu3.2Zn0.7 IMC layer by increasing the ultrasonic vibration time to 15 s. A well-matched coherent interface was formed between the Al4.2Cu3.2Zn0.7 ternary phase and the Cu-based diffusion layer. The phase transition of the Cu-side interfacial layer correlated closely with the acoustic cavitations induced super-saturation regions near the Cu substrate surface. The measured tensile strength of the Al/Zn-3Al/Cu joint ultrasonically brazed for 15 s was 89.3 MPa, which was approximately 2.5 times higher than that brazed for 2 s, and the tensile failure mainly occurred at the interface between the Al4.2Cu3.2Zn0.7 layer and the Cu-based diffusion layer.
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- 2024
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28. Effect of placental mesenchymal stem cells on promoting the healing of chronic burn wounds
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Jinli Xiao, Qing Zhang, Bowen Wu, Maomao Wang, Yongzhao Zhu, Dan Zhao, Fang Zhao, and Yan Xie
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Chronic burn wounds ,Placental mesenchymal stem cells ,Fibroblasts ,Keratinocytes ,Wound healing ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
The treatment of chronic burn wounds is difficult in clinical practice. The ideal therapy is required to be continuously explored. Mesenchymal stem cells revolutionize the treatment of many diseases. The placental mesenchymal stem cells (PMSCs) have the characteristics of easy access, strong proliferation ability and multi-directional differentiation potential. The aim of this study was to investigate the potential of PMSCs in chronic burn wound healing. In this study, species of bacteria of 317 patients with chronic burn wounds have been analyzed. Samples of chronic burn wound fluid were collected from representative patients and then co-cultured with cells. In vitro studies showed that chronic burn wound fluid inhibited the proliferation of human keratinocytes and fibroblasts, while PMSCs can counteract the effects of burn wound fluid on inhibiting the proliferation and migration of human keratinocytes and fibroblasts. In addition, in vivo studies showed that a rat chronic burn wound model was successfully created. The expression of MMP-2, MMP-9, MDA, IL-6 and TNF-α in chronic burn wounds was significantly higher than that in acute burn wounds. Finally, the rat chronic burn wound model was used to verify that placental mesenchymal stem cell transplantation increased the wound healing rate, decreased the wound healing time, and promoted wound healing by increasing the thickness of epidermis and promoting the expression of P63 and CK10. The findings provide support for the hypothesis that PMSCs promote the repair of chronic burn wounds and key scientific data for the application of PMSCs as a new method for treating chronic burn wounds.
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- 2024
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29. Numerical investigation on acoustic damping characteristics of dual Helmholtz resonators in presence of a grazing flow
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He Zhao, Dan Zhao, and Xu Dong
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Control engineering systems. Automatic machinery (General) ,TJ212-225 ,Acoustics. Sound ,QC221-246 - Abstract
In this study, the acoustic damping performances of the dual Helmholtz resonators were numerically evaluated using a 3D model. The grazing flow passes tangentially through the resonator neck, with a Mach number range of 0 ≤ Ma ≤ 0.1. The numerical model operates by solving the linearized Navier–Stokes equations. The current model is validated through a comparison with experimental data. The model is then utilized to explore the effects of the dual Helmholtz resonators on acoustic transmission loss performance in the presence of a grazing flow. Three key parameters are examined: 1) different implementation configurations of the dual Helmholtz resonators (including Models (b), (c), and (d)), 2) the mean temperature of the grazing flow, and 3) the axial distance between the dual Helmholtz resonators. For comparison, the acoustic damping performance of these dual Helmholtz resonators is compared to the single Helmholtz resonator case (Model (a)). The maximum transmission loss of Model (c) is significantly higher, recording values of 91%, 89.4%, and 92.5% than those observed for Model (a) at Ma = 0, Ma = 0.05, and Ma = 0.1, respectively. It is observed that the dual Helmholtz resonators dramatically increase the transmission loss. Model (c) is demonstrated to be associated with the most significant damping on the acoustic plane waves in comparison with that of Model (a). Additionally, the maximum transmission loss of Model (c) is 23.23 dB, 30.32 dB, and 34.58 dB at mean temperatures of 300 K, 600 K, and 900 K, respectively. Therefore, increasing the mean temperature is shown to be beneficial to enhance transmission losses in the presence of the grazing flow. Furthermore, under Ma = 0.1, the resonant frequency of Model (c) is 127 Hz, 152 Hz, and 172 Hz, corresponding to mean temperatures of 300 K, 600 K, and 900 K. It can be concluded that increasing the temperature has the effect of broadening the resonant frequency, especially at a high grazing flow Mach number. However, increasing the mean temperature results in a reduction of transmission loss in the absence of the grazing flow. In the case of Model (c), a 32 cm axial distance results in a 5.6% larger transmission loss at Ma = 0 and a 26.4% larger loss at Ma = 0.1 compared to a 16 cm axial distance. This indicates that increasing the axial distance between the dual Helmholtz resonators improves transmission loss.
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- 2024
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30. Nogo-B inhibition facilitates cholesterol metabolism to reduce hypercholesterolemia
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Chao Xue, Peng Zeng, Ke Gong, Qian Li, Zian Feng, Mengyao Wang, Shasha Chen, Yanfang Yang, Jiaqi Li, Shuang Zhang, Zequn Yin, Yingquan Liang, Tengteng Yan, Miao Yu, Ke Feng, Dan Zhao, Xiaoxiao Yang, Xia Zhang, Likun Ma, Yasuko Iwakiri, Liang Chen, Xiaoqiang Tang, Yuanli Chen, Houzao Chen, and Yajun Duan
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CP: Metabolism ,Biology (General) ,QH301-705.5 - Abstract
Summary: The strategy of lowering cholesterol levels by promoting cholesterol excretion is still lacking, and few molecular targets act on multiple cholesterol metabolic processes. In this study, we find that Nogo-B deficiency/inhibition simultaneously promotes hepatic uptake of cholesterol and cholesterol excretion. Nogo-B deficiency decreases cholesterol levels by activating ATP-binding cassette transporters (ABCs), apolipoprotein E (ApoE), and low-density lipoprotein receptor (LDLR) expression. We discover that Nogo-B interacts with liver X receptor α (LXRα), and Nogo-B deficiency inhibits ubiquitination degradation of LXRα, thereby enhancing its function on cholesterol excretion. Decreased cellular cholesterol levels further activate SREBP2 and LDLR expression, thereby promoting hepatic uptake of cholesterol. Nogo-B inhibition decreases atherosclerotic plaques and cholesterol levels in mice, and Nogo-B levels are correlated to cholesterol levels in human plasma. In this study, Nogo-B deficiency/inhibition not only promotes hepatic uptake of blood cholesterol but also facilitates cholesterol excretion. This study reports a strategy to lower cholesterol levels by inhibiting Nogo-B expression to promote hepatic cholesterol uptake and cholesterol excretion.
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- 2024
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31. TRIM59 is required for mouse GC-1 cell maintenance through modulating the ubiquitination of AXIN1
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Tiantian Wu, Hui Zhou, Lulu Wang, Jianxin Tan, Wenxin Gao, Yibo Wu, Dan Zhao, Cong Shen, Bo Zheng, Xiaoyan Huang, and Binbin Shao
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TRIM59 ,GC-1 cells ,AXIN1 ,Ubiquitination ,β-catenin signaling ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Tripartite motif-containing protein 59 (TRIM59) is a biomarker for multiple tumors with crucial roles. However, the specific role of TRIM59 in germ cells remains largely unknown. Here, we investigated the effects and underlying regulatory mechanisms of TRIM59 on germ cells using the mouse spermatogonial cell line GC-1. Our results demonstrated that TRIM59 promoted proliferation and inhibited apoptosis of GC-1 cells. Mechanistically, TRIM59 maintained GC-1 cell behaviors through ubiquitination of AXIN1 to activate β-catenin signaling. Furthermore, activation of β-catenin signaling reversed the effects mediated by Trim59 knockdown in GC-1 cells. Collectively, our study revealed a major role and regulatory mechanism of TRIM59 in GC-1 cells, which sheds new light on the molecular pathogenesis of defects in spermatogenesis and may provide therapeutic targets for treatment of male infertility.
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- 2024
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32. Artificial light at night decreases phyllosphere microbial diversity and functionality in grassland plants
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Zhihui Wang, Wanting Peng, Xinyu Li, Dan Zhao, Li Chen, Yunrui Yang, Jinyu Chen, and Hongyi Wang
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artificial light at night ,phyllosphere microorganism ,grassland ,microbial community structure ,Ecology ,QH540-549.5 - Abstract
With the rapid expansion of artificial light in the global nocturnal environment, the ecological impacts of artificial light at night (ALAN) on plant communities have garnered increasing research interest. However, the role of phyllosphere microorganisms as mediators in the regulation between ALAN and plants remains unclear. In this study, we conducted a field experiment in natural grassland plots, employing two treatments: one with no artificial light at night (control) and another with artificial light at night (ALAN). We then investigated the response of phyllosphere microorganisms in three grassland plant species (Leymus chinensis, Vicia sepium, and Aster altaicus) to ALAN exposure. The results revealed that the constructive species L. chinensis demonstrated a markedly higher diversity of phyllosphere bacteria and fungi compared to V. sepium and A. altaicus and thus had the most abundant microbial community. However, ALAN exposure reduced the diversity of phyllosphere bacteria and fungi in all three plant species to varying degrees. ALAN induced certain changes to the phyllosphere bacterial community composition, particularly manifesting in a reduction in the abundance of beneficial bacteria, including Sphingomonas, Hymenobacter, Methylobacterium-Methylorubrum, and Bacillus. Compared with phyllosphere bacterial communities, the alterations in phyllosphere fungal communities were more sensitive, characterized by a significant decrease in the abundance of certain fungi, including Zymoseptoria, Mycosphaerella, Cladosporium, and Epicoccum. The functional predictions of phyllosphere bacteria and fungi further corroborate these conclusions. In summary, ALAN exposure may suppress the functional capacity of phyllosphere microorganisms in grassland plants while decreasing the probability of fungal pathogen occurrence.
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- 2024
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33. Deciphering Mechanisms of CO2‑Selective Recognition over Acetylene within Porous Materials
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Zhaoqiang Zhang and Dan Zhao
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Chemical engineering ,TP155-156 ,Biotechnology ,TP248.13-248.65 - Abstract
Reverse adsorption of carbon dioxide (CO2) from acetylene (C2H2) presents both significant importance and formidable challenges, particularly in the context of carbon capture, energy efficiency, and environmental sustainability. In this Review, we delve into the burgeoning field of reverse CO2/C2H2 adsorption and separation, underscoring the absence of a cohesive materials design strategy and a comprehensive understanding of the CO2-selective capture mechanisms from C2H2, in contrast to the quite mature methodologies available for C2H2-selective adsorption. Focusing on porous materials, the latest advancements in CO2-selective recognition mechanisms are highlighted. The review establishes that the efficacy of CO2 recognition from C2H2 relies intricately on a myriad of factors, including pore architecture, framework flexibility, functional group interactions, and dynamic responsive behaviors under operating conditions. It is noted that achieving selectivity extends beyond physical sieving, necessitating meticulous adjustments in pore chemistry to exploit the subtle differences between CO2 and C2H2. This comprehensive overview seeks to enhance the understanding of CO2-selective recognition mechanisms, integrating essential insights crucial for the advancement of future materials. It also lays the groundwork for innovative porous materials in CO2/C2H2 separation, addressing the pressing demand for more efficient molecular recognition within gas separation technologies.
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- 2024
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34. The impact of hypertension follow-up management on the choices of signing up family doctor contract services: does socioeconomic status matter?
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Xuehong Wang, Jie Chu, Dan Zhao, Tingting Gao, Jingjing Luo, Xueqing Wang, Shujun Chai, Jiayan Li, Jingjie Sun, Peilong Li, and Chengchao Zhou
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Hypertension follow-up management ,Family doctor contract services ,Socioeconomic status ,Medicine (General) ,R5-920 - Abstract
Abstract Background This study aimed to explore the association between hypertension follow-up management and family doctor contract services, as well as to examine whether socioeconomic status (SES) had an interaction effect on this relationship among older adults in China. Methods We used data from the sixth National Health Service Survey of Shandong Province, China, including 3,112 older adults (age ≥ 60 years) with hypertension in 2018. Logistic regression models and a margins plot were used to analyze the role of SES in the relationship between hypertension follow-up management and family doctor contract services. Results The regular hypertension follow-up management rate and family doctor contracting rate were 81.8% and 70.9%, respectively, among older adults with hypertension. We found that participants with regular hypertension follow-up management were more likely to sign family doctor contract services (OR=1.28, 95%CI: 1.04, 1.58, P=0.018). The interaction effect occurred in the groups who lived in rural areas (OR=1.55, 95%CI: 1.02, 2.35), with high education level (OR=0.53, 95%CI: 0.32, 0.88) and had high incomes (OR=0.53, 95%CI: 0.35, 0.81). Conclusions Our findings suggested that regular hypertension follow-up management was associated with family doctor contract services and SES influenced this relationship. Primary health care should improve the contracting rate of family doctors by strengthening follow-up management of chronic diseases. Family doctors should focus on improving services quality and enriching the content of service packages especially for older adults with higher income and education level.
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- 2024
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35. Expression patterns of mechanosensitive ion channel PIEZOs in irreversible pulpitis
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Wenying Yang, Lu Lin, Shucheng Hu, Bin Jiang, Ruhan Yang, Weijun Yu, Jiaqi Tang, Dan Zhao, Yuting Gu, Min Jin, Jin Li, and Eryi Lu
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Irreversible pulpitis ,Mechanosensitive ion channels ,PIEZO1 ,PIEZO2 ,Inflammation ,Pain ,Dentistry ,RK1-715 - Abstract
Abstract Background Mechanosensitive ion channel PIEZOs have been widely reported to involve inflammation and pain. This study aimed to clarify expression patterns of PIEZOs and their potential relations to irreversible pulpitis. Materials and methods Normal pulp tissues (n = 29) from patients with impacted third molars and inflamed pulp tissues (n = 23) from patients with irreversible pulpitis were collected. Pain levels were assessed using a numerical rating scale. PIEZO expressions were measured using real-time PCR and then confirmed using GEO datasets GSE77459, immunoblot, and immunohistochemistry staining. Correlations of PIEZO mRNA expression with inflammatory markers, pain markers, or clinical pain levels were evaluated using Spearman’s correlation analysis. Univariate analysis was conducted to analyze PIEZO expressions based on pain description and clinical examinations of cold test, percussion, palpation, and bite test. Results Compared with normal pulp tissues, mRNA expression levels of PIEZO1 were significantly increased in inflamed pulp tissues, while PIEZO2 was significantly decreased, which was further confirmed in GSE77459 and on a protein and histological level. The positive correlation of the mRNA expression levels between PIEZO1 and inflammatory markers, as well as between PIEZO2 and pain markers, was verified. PIEZO2 expression was also positively correlated with pain levels. Besides, irreversible pulpitis patients who reported continuous pain and who detected a positive response to cold stimulus exhibited a higher expression level of PIEZO2 in the inflamed pulp tissues. By contrast, patients reporting pain duration of more than one week showed a higher expression level of PIEZO1. Conclusions This study demonstrated the upregulation of PIEZO1 and the downregulation of PIEZO2 in irreversible pulpitis and revealed the potential relation of PIEZO1 and PIEZO2 to inflammation and pain. These findings suggested that PIEZOs might play critical roles in the progression of irreversible pulpitis and paved the way for further investigations aimed at novel therapies of irreversible pulpitis by targeting PIEZOs.
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- 2024
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36. Higgs boson pair production and decay at NLO in QCD: the b b ¯ γγ $$ b\overline{b}\gamma \gamma $$ final state
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Hai Tao Li, Zong-Guo Si, Jian Wang, Xiao Zhang, and Dan Zhao
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Higgs Production ,Higher-Order Perturbative Calculations ,Nuclear and particle physics. Atomic energy. Radioactivity ,QC770-798 - Abstract
Abstract The Higgs boson pair production at the LHC provides a probe to the Higgs boson self-coupling. The higher-order QCD corrections in this process are sizable and must be taken into account in comparison with data. Due to the small cross section, it is necessary to consider at least one of the Higgs bosons decaying to bottom quarks. The QCD corrections to the decay processes would also be important in such cases. We present a full calculation of the total and differential cross sections for the b b ¯ γγ $$ b\overline{b}\gamma \gamma $$ final state with next-to-leading order (NLO) QCD corrections. After applying typical kinematic cuts in the final state, we find that QCD NLO corrections in the decay decrease the LO result by 19% and reduce the scale uncertainties by a factor of two. The QCD corrections to the invariant mass m jjγγ distribution, the transverse momentum spectra of the leading bottom quark jet and photon are significant and can not be approximated by a constant factor.
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- 2024
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37. Annual Variation of Shellfish Community Structure in Intertidal Zone of Changshan Islands
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Guangyu GE, Liqing ZHOU, Hao JING, Zhou WU, Biao WU, Xiujun SUN, Zhihong LIU, Yumin YANG, and Dan ZHAO
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changshan islands ,intertidal zone ,shellfish ,diversity index ,Aquaculture. Fisheries. Angling ,SH1-691 - Abstract
To understand the seasonal variations in shellfish community structure, the composition and diversity of shellfish in the intertidal zone of the Changshan Archipelago, China, were investigated. We investigated the composition and diversity of shellfish species in the intertidal zone (including NCD1, NCD2, BCD1, BCD2, TJD1, TJD2, DQD1, DQD2, NHD1, and NHD2) of five representative islands and 10 survey stations in the Changshan Archipelago during the low tide period in July and October 2021 and February and May 2022, and the water quality parameters of point water and interstitial water were analyzed. The results showed that the bottom material of the Changshan Archipelago was generally rock or gravel and the salinity fluctuated with the seasons. The salinity was high in summer and fall while low in spring and winter, with an average of 30.92±0.84. Compared with spring, summer, and fall, the temperature changed significantly in winter, with an average of (4.51±0.32) ℃ and the highest temperature being 23.48 ℃ during spring, summer, and fall. In general, the dissolved oxygen in the main islands of Changshan Archipelago (North and South Changshan Islands) was relatively low, with an average of (8.59±0.38) mg/L, while that in Tuoji Island, Daqin Island, and Nanhuangcheng Island was relatively high, with an average of (9.95±0.51) mg/L. A total of 12 species of shellfish were collected in this survey, including Crassostrea sp., Monodonta labio Linnaeus, Littorina brevicula, Mytilus galloprovincialis, Patelloida pygmaea, Chlorostoma rustica, Reishia clavigera, Thais luteostoma, Ocinebrellus inornata, Cellana toreuma, Ruditapes philippinarum, and Rapana venosa. The number of shellfish species in each season was the highest in spring, with an average of eight species, followed by in fall, with an average of six species. Winter had the least number of shellfish species collected, with an average of four species. In addition, the North and South Changshan Islands presented the most shellfish species at eight and nine species, respectively. The number of shellfish collected in DQD was the least (six species). There were differences in shellfish density at different survey sites, among which DQD2 had the highest density, with an average density of 41.26 ind./m2. The lowest density was in NCD2, and the average density was 13.71 ind./m2. In the same season, the shellfish density at different survey sites was different, the proportion of dominant species at different survey sites was also different. In spring, the density of Crassostrea sp., Cellana toreuma, and Chlorostoma rustica was high, while in summer, the density of Crassostrea sp., Mytilus galloprovincialis, Littorina brevicula, and Cellana toreuma was high. In fall, the density of Crassostrea sp., Littorina brevicula, and Mytilus galloprovincialis was the highest, while in winter, the density of Crassostrea sp., Patelloida pygmaea, and Cellana toreuma was the highest. The species diversity (H´) of shellfish in each tidal area of the survey site is shown as middle tidal zone (1.44) > low tidal zone (1.40) > high tidal zone (0.44). Overall, the average shellfish species diversity in the 10 survey sites was spring (1.26) > winter (1.21) > fall (1.11) > summer (0.95). The average evenness index of species (J´) in the 10 survey stations was 0.55, among which the evenness index of DQD2, NCD2, NHD2, and TJD1 shellfish was 0.67, 0.64, 0.64, and 0.55, respectively. The evenness index of shellfish in each tidal area of the survey site was in order of middle tidal zone (0.67) > low tidal zone (0.59) > high tidal zone (0.29). The seasonal change was not obvious. The average shellfish abundance at the survey site was 0.533, including 0.82, 0.68, 0.60, and 0.53 shellfish abundance at NCD2, NHD2, BCD2, and NCD1, respectively. The abundance index of shellfish in each tidal area of the survey site was in order of middle tidal zone (0.56) > low tidal zone (0.52) > high tidal zone (0.17). Overall, the average shellfish abundance in the 10 survey sites was spring (0.681) > fall (0.573) > summer (0.458) > winter (0.418). Seasons (temperatures) have the most obvious impact on the diversity and abundance of intertidal shellfish resources. Anthropogenic activities, such as aquaculture and tourism, also affect the distribution and quantity of shellfish species. The results of this study not only enrich the data of intertidal shellfish resources on islands in China but also provide basic information and reference for biodiversity and environmental protection of intertidal shellfish on the Changshan Islands.
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- 2024
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38. Micro-damage model of gas-bearing coal under load and instability identification criteria
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Baisheng NIE, Dan ZHAO, Mengxia WANG, Xianfeng LIU, Peng LIU, Bozhi DENG, Xiyang ZHU, Feng QIN, Xinyu MA, Jiuhong ZHAO, and Shoujian PENG
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pore space ,instability discrimination ,micro-damage ,coal skeleton ,coal and gas outburst ,Geology ,QE1-996.5 ,Mining engineering. Metallurgy ,TN1-997 - Abstract
The distribution of pores and skeletons within coal reservoirs significantly affects the migration of gases and the occurrence of gas dynamic disasters. To further explore the micro-damage mechanisms in gas-containing coal, a detailed study of the micro-damage process in gas-containing coal was conducted. Atomic force microscopy was employed to conduct in-situ tests on the surfaces of protruding and non-protruding coal samples before and after loading. The results indicate that the surface structure of the coal samples changes after loading, with a reduction in closed pore diameter, damage to some pores, and a tendency for connectivity between adjacent closed pores. Before loading, the pores in coal samples exhibit irregular distribution, while after loading, pore connectivity increases, and the number of open pore throats slightly increases. Loading leads to a reduction in the modulus of coal skeleton in protruding coal samples due to pore connectivity, while non-protruding coal samples experience internal structure compaction, resulting in a slight increase in elastic modulus due to their higher strength. Micro-damage types and concepts in coal were defined, and the stress distribution characteristics around coal pores and the coal skeleton were analyzed, revealing the micro-damage mechanisms in gas-containing coal under different conditions. Simultaneously, the factors influencing the closed-cell micro-gas explosion were discussed. The stress at the end of a slender elliptical hole is greater along the hole wall, making it more susceptible to closed-cell micro-gas explosions. Two forms of occurrence of open-pore micro-damage were described, revealing the constraining effect of the "bottleneck effect" on micro-damage. Inherent fractures were identified as the weak link in the coal skeleton, and the evolution of their rupture was analyzed. Utilizing theories such as linear elastic fracture mechanics, elastic-plastic mechanics, and permeation mechanics, criteria for detecting pore damage and coal instability under stress disturbances were established. The micro-damage characteristics of gas-containing coal and the mechanisms inducing coal and gas outbursts were summarized, and the research direction of coal and gas outburst was prospected.
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- 2024
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39. Harnessing strong aromatic conjugation in low-dimensional perovskite heterojunctions for high-performance photovoltaic devices
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Bo Li, Qi Liu, Jianqiu Gong, Shuai Li, Chunlei Zhang, Danpeng Gao, Zhongwei Chen, Zhen Li, Xin Wu, Dan Zhao, Zexin Yu, Xintong Li, Yan Wang, Haipeng Lu, Xiao Cheng Zeng, and Zonglong Zhu
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Science - Abstract
Abstract Low-dimensional/three-dimensional perovskite heterojunctions have shown great potential for improving the performance of perovskite photovoltaics, but large organic cations in low-dimensional perovskites hinder charge transport and cause carrier mobility anisotropy at the heterojunction interface. Here, we report a low-dimensional/three-dimensional perovskite heterojunction that introduces strong aromatic conjugated low-dimensional perovskites in p-i-n devices to reduce the electron transport resistance crossing the perovskite/electron extraction interface. The strong aromatic conjugated π-conjugated network results in continuous energy orbits among [Pb2I6]2− frameworks, thereby effectively suppressing interfacial non-radiative recombination and boosting carrier extraction. Consequently, the devices achieved an improved efficiency to 25.66% (certified 25.20%), and maintained over 95% of the initial efficiency after 1200 hours and 1000 hours under ISOS-L-1I and ISOS-D-1 protocols, respectively. The chemical design of strong aromatic conjugated molecules in perovskite heterojunctions provides a promising avenue for developing efficient and stable perovskite photovoltaics.
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- 2024
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40. Research on the flow stability and noise reduction characteristics of quasi-periodic elastic support skin
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Lu Chen, Shao-gang Liu, Dan Zhao, Li-qiang Dong, Kai Li, Shuai Tang, Jin Cui, and Hong Guo
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Flow stability ,Quasi-period ,Flexible wall ,Elastic support element ,Hydrodynamic noise ,Military Science - Abstract
To enhance flow stability and reduce hydrodynamic noise caused by fluctuating pressure, a quasi-periodic elastic support skin composed of flexible walls and elastic support elements is proposed for fluid noise reduction. The arrangement of the elastic support element is determined by the equivalent periodic distance and quasi-periodic coefficient. In this paper, a dynamic model of skin in a fluid environment is established. The influence of equivalent periodic distance and quasi-periodic coefficient on flow stability is investigated. The results suggest that arranging the elastic support elements in accordance with the quasi-periodic law can effectively enhance flow stability. Meanwhile, the hydrodynamic noise calculation results demonstrate that the skin exhibits excellent noise reduction performance, with reductions of 10 dB in the streamwise direction, 11 dB in the spanwise direction, and 10 dB in the normal direction. The results also demonstrate that the stability analysis method can serve as a diagnostic tool for flow fields and guide the design of noise reduction structures.
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- 2024
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41. Challenges and Opportunities in Preserving Key Structural Features of 3D-Printed Metal/Covalent Organic Framework
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Ximeng Liu, Dan Zhao, and John Wang
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Metal–organic frameworks ,Covalent organic frameworks ,3D printing ,Microstructure ,Monolith ,Technology - Abstract
Highlights A comprehensive investigation on the research states of 3D-printed metal/covalent organic frameworks (M/COFs) is conducted with the discussion on the M/COF-mixed monolith and M/COF-covered monolith separately. Recent advances in design strategies regarding both the paste/scaffold formation and the 3D-printing/covering process for preserving the better structural features of M/COFs (surface area, porosity, and micromorphology) in their 3D printed monolith are overviewed and discussed.
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- 2024
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42. Catastrophic health expenditure and health-related quality of life among older adults in Shandong, China: the moderation effect of daily care by adult children
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Jiayan Li, Tingting Gao, Dan Zhao, Shujun Chai, Jingjing Luo, Xuehong Wang, Xueqing Wang, Jingjie Sun, Peilong Li, and Chengchao Zhou
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Catastrophic health expenditure ,Health-related quality of life ,Adult children ,Daily life caregiver ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Catastrophic health expenditure (CHE) has a considerable impact on older people in later life, but little is known about the relationship between catastrophic health expenditure and health-related quality of life (HRQOL). The aim of this study was to examine the relationship between catastrophic health expenditure and health-related quality of life in older people, and to explore whether the daily care provided by adult children is a moderator in this relationship. Methods Data from the sixth National Health Services Survey in Shandong Province, China. The sample consisted of 8599 elderly people (age ≥ 60 years; 51.7% of female). Health-related quality of life was measured by the health utility value of EQ-5D-3 L. Interaction effects were analyzed using Tobit regression models and marginal effects analysis. Results The catastrophic health expenditure prevalence was 60.5% among older people in Shandong, China. catastrophic health expenditure was significantly associated with lower health-related quality of life (β= − 0.142, P
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- 2024
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43. Adult head and neck rhabdomyosarcoma: radiotherapy- based treatment, outcomes, and predictors of survival
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Dan Zhao, Fang Zhou, Weixin Liu, Zhou Huang, Xiaolong Xu, Baomin Zheng, Changqing Liu, Chujie Bai, Jiayong Liu, Yan Sun, Weihu Wang, and Shaowen Xiao
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Head and neck ,Adult ,Rhabdomyosarcoma ,Prognosis ,Radiotherapy ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Adult head and neck rhabdomyosarcoma (HNRMS) is an exceptionally rare malignancy, and there is a paucity of data and research dedicated to understanding its characteristics and management in adult populations. This study aimed to assess the outcomes and identify survival predictors in adult HNRMS. Methods We retrospectively evaluated 42 adult patients (> 16 years) with HNRMS who received radiotherapy (RT)-based treatment at our institute between 2008 and 2022. We analysed the clinical characteristics and prognosis of these patients, including the locoregional recurrence-free survival (LRFS), progression-free survival (PFS), and overall survival (OS), using the Kaplan–Meier method. The chi-square and Fisher’s exact tests were used to analyse differences between groups for dichotomous and categorical variables, respectively. Survival rates were calculated using the Kaplan–Meier method. Prognostic variables were assessed through univariate Cox analyses. Results The median patient age was 28 years (range, 16–82 years). Alveolar RMS was the most common histological type, observed in 21 patients (50.0%), followed by embryonal in 16 patients (38.1%). The anatomic sites of origin were orbital in one (2.4%), parameningeal in 26 (61.9%), and non-orbital/non-parameningeal in 15 (35.7%) patients. Nineteen patients (45.2%) had regional lymph node metastasis, and five patients (11.9%) presented with distant metastatic disease. Distant metastasis (n = 17) was the primary cause of treatment failure. At a median follow-up of 47.0 months, the 5-year LRFS, PFS, and OS rates were 69.0%, 39.7%, and 41.0%, respectively. Univariate analysis revealed that tumour size, lymph node involvement, and the local treatment pattern (surgery and RT vs. RT alone) were significant predictors of survival. Conclusions The main failure pattern in patients with HNRMS receiving RT-based treatment was distant metastasis. Tumour size > 5 cm and lymph node involvement were predictors of worse LRFS. Multimodality local treatment, combining surgery and RT, is effective and provides survival benefits.
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- 2024
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44. A new treatment of concealed penis: symmetrical pterygoid flap surgery
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Peng Jing, Dan Zhao, Qiao Wu, and Xiaohou Wu
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Penis ,Surgical Flaps ,Therapeutics ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
ABSTRACT Purpose: Considerable controversy exists regarding the surgery for concealed penis. We describe a new technique for repairing concealed penis by symmetrical pterygoid flap surgery. Methods: From January 2016 to July 2022, we evaluated 181 cases of concealed penis that were surgically treated using the symmetrical pterygoid flap surgery. We measured the penile size preoperative and 2, 4, 12 weeks, and 1 year postoperative to confirm the improvement. A questionnaire was administered to the patients and parents to assess satisfaction regarding penile size, morphology, and hygiene. Result: The perpendicular penile length was1.59±0.32cm preoperative and 3.82±1.02 cm after the procedure (p < 0.05), and 4.21±1.91cm after one year of postoperative (p < 0.05). The overall satisfaction of patients was 97.89%, while the overall satisfaction of older children patients (age>7) was 75.24%. Parents focus more on the penile exposure size, while patients focus more on the penile morphology. Almost every patient had postoperative penile foreskin edema. However, this symptom had spontaneously resolved by 4-6 weeks. The complications such as skin necrosis, tissue contracture, or wound infection were 4.42%. Conclusion: The symmetrical pterygoid flap surgery is an effective surgical technique for the management of concealed penis in children producing predictable results and excellent satisfaction of the parents and patients.
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- 2024
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45. Okara protein extracted by alternating ultrasonic/alkali treatment and its improved physicochemical and functional properties
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Lu Tang, Xiaolin Liu, Shiru Bai, Dan Zhao, Xuzhen Guo, Dandan Zhu, Guiying Su, Bei Fan, Bo Wang, Liang Zhang, and Fengzhong Wang
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Okara ,Protein ,Alkali ,Ultrasound ,Functional properties ,Emulsion stability ,Chemistry ,QD1-999 ,Acoustics. Sound ,QC221-246 - Abstract
Okara protein (OP) is a potential plant-based protein that is beneficial to human health. In this work, an alternating ultrasonic/alkali treatment method with non-continued cavitation and thermal energy output was used to extract protein (AUA-OP) from okara to enhance the functional properties of OP and improve the stability of OP-based emulsions. The purity of AUA-OP was greater than 80%. Compared with traditional (physical-assisted) alkali treatment, FTIR and SDS-PAGE revealed that AUA-OP retained the chemical structure of the protein, but the number of ultrasound-induced exposure sites increased, with increased fluorescence intensity, surface hydrophobicity, and absolute ζ-potential. After alternating ultrasonic/alkali treatment, the protein particles were looser and smaller. In addition, the water/oil holding capacity, EAI, and ESI of AUA-OP further increased. The viscosity of the AUA-OP-stabilized emulsion was also greater. Finally, a 28-day emulsion storage assay revealed that the AUA-OP-stabilized emulsion was stable with a relatively low droplet size and creaming index, indicating great potential for the development of stable protein-based emulsions.
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- 2024
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46. Crosstalk among plant hormone regulates the root development
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Yuru Ma, Jiahui Xu, Jiahong Qi, Dan Zhao, Mei Jin, Tuo Wang, Yufeng Yang, Haojia Shi, Lin Guo, and Hao Zhang
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ram ,hormone ,auxin ,cytokinin ,brassinosteroid ,crosstalk ,Plant ecology ,QK900-989 ,Biology (General) ,QH301-705.5 - Abstract
The plant root absorbs water and nutrients, anchors the plant in the soil, and promotes plant development. Root is developed from root apical meristem (RAM), which is formed during embryo stage and is maintained by dividing stem cells. Plant hormones have a predominant role in RAM maintenance. This review evaluates the functional crosstalk among three major hormones (auxin, cytokinin, and brassinolide) in RAM development in Arabidopsis, integrating a variety of experimental data into a regulatory network and revealing multiple layers of complexity in the crosstalk among these three hormones. We also discuss possible directions for future research on the roles of hormones in regulating RAM development and maintenance.
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- 2024
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47. Iron overload impact on peripheral blood cells, lymphocytes and karyotypes in newly diagnosed myelodysplastic syndromes (MDS) patients: a single-center retrospective analysis
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Lixiang Duan, Wenjun Yu, Xiaolin Jiao, Ying Sun, Yao Fang Ma, Le Li, Zeqiang Nie, and Dan Zhao
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iron overload ,myelodysplastic syndrome ,lymphocyte subsets ,peripheral blood cells ,karyotype ,Biotechnology ,TP248.13-248.65 ,Life ,QH501-531 - Abstract
We conducted a retrospective analysis of 68 newly diagnosed myelodysplastic syndrome (MDS) patients who were treated in the Department of Hematology at Yuncheng Central Hospital affiliated to Shanxi Medical University from October 2017 to March 2022. Based on the serum ferritin (SF) level, the newly diagnosed MDS patients were divided into two groups: iron overload (IOL) group (SF > 1000 ng/mL) and non-iron overload (NIOL) group(SF ≤ 1000 ng/mL). General clinical data, peripheral blood cells, lymphocyte subsets and marrow karyotypes were compared. We found that MDS patients with IOL had lower hemoglobin (Hb), lower reticulocyte (RET) counts, and lower absolute natural killer (NK) cell counts compared with NIOL group (p
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- 2024
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48. Innovative prevention and control of coccidiosis: targeting sporogony for new control agent development
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Dan Zhao, Jingxia Suo, Lin Liang, Ruiying Liang, Rongqiong Zhou, Jiabo Ding, Xianyong Liu, Xun Suo, Sixin Zhang, and Xinming Tang
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chicken coccidiosis ,life cycle ,sporogony ,developmental regulation ,control agent ,Animal culture ,SF1-1100 - Abstract
ABSTRACT: Coccidiosis is one of the most significant diseases affecting the poultry industry, with recent estimates indicating that it causes annual losses exceeding £10 billion globally. Increasing concerns over drug residues and resistance have elevated the importance of safe and effective vaccines as the primary method for controlling coccidiosis and other animal diseases. However, current commercial live vaccines for coccidiosis can negatively impact the feed conversion rates of young broilers and induce subclinical symptoms of coccidiosis, limiting their widespread adoption. Eimeria species, the causative agents of coccidiosis, exhibit unique biological characteristics. Their life cycle involves 2 or more generations of schizogony and 1 generation of gametogony within the host, followed by sporogony in a suitable external environment. Sporogony is crucial for Eimeria oocysts to become infectious and propagate within the host. Focusing on the sporogony process of Eimeria presents a promising approach to overcoming technical challenges in the efficient control of coccidiosis, addressing the urgent need for sustainable and healthy farming practices. This paper systematically reviews existing control strategies for coccidiosis, identifies current challenges, and emphasizes the research progress and future directions in developing control agents targeting sporogony. The goal is to provide guidance for the formulation of scientific prevention and control measures for coccidiosis.
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- 2024
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49. Neurological activation during verbal fluency task and resting-state functional connectivity abnormalities in obsessive-compulsive disorder: a functional near-infrared spectroscopy study
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Yongjun Qiao, Xiaohui Song, Jin Yan, Wenxiu Pan, Chinhsuan Chia, Dan Zhao, Chuanxin M. Niu, Qing Xie, and Haiyan Jin
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obsessive-compulsive disorder ,functional near-infrared spectroscopy ,verbal fluency task ,functional connectivity ,brain activation ,Psychiatry ,RC435-571 - Abstract
ObjectiveThis study aims to investigate the activation of frontotemporal functional brain areas in patients with Obsessive-Compulsive Disorder (OCD) during a Verbal Fluency Task (VFT), and to compare their brain functional connectivity in a resting state with that of healthy controls. The goal is to deepen our understanding of the neuropathological mechanisms underlying OCD.Methods32 patients with OCD and 32 controls matched for age, gender, handedness, and years of education participated in this study, they were divided into OCD group and healthy comtrol group. We conducted VFT task tests and 10-minute resting state tests on both groups by using functional Near-Infrared Spectroscopy (fNIRS). The VFT was utilized to assess the activation (beta values) and the integral and centroid values of the frontal and bilateral temporal lobes, including brain areas BA9 and 46 (dorsolateral prefrontal cortex), BA10 (frontal pole), BA45 (inferior frontal gyrus), BA21 (middle temporal gyrus), and BA22 (superior temporal gyrus). We evaluated the functional connectivity levels of these areas during the resting state. Differences in these measures between OCD patients and healthy controls were analyzed using two-sample independent t-tests and non-parametric Mann-Whitney U tests.ResultsDuring VFT, OCD had smaller integral values(z=5.371, p
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- 2024
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50. Effects of vitamin D supplementation on muscle strength in middle-aged and elderly individuals: a retrospective, propensity score-matched study
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Peiyao Qi, Xiaomin Fu, Dan Zhao, Chunlin Li, Yanhui Lu, and Nan Li
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vitamin D ,supplementation ,muscle strength ,retrospective studies ,propensity score ,Nutrition. Foods and food supply ,TX341-641 - Abstract
IntroductionThe aim of this study is to investigate the impact of vitamin D supplementation on the muscle strength of the elderly.MethodsThis retrospective, propensity score-matched study included 160 middle-aged and elderly individuals from a community in Beijing, China. The control group (n=110) received health education and lifestyle guidance, while the intervention group (n=50) was given oral vitamin D supplementation in addition to health education and lifestyle guidance. All participants underwent laboratory tests, muscle function, and physical function at baseline and follow-up.ResultsIn the propensity score-matched cohort of 41 patients per group, the levels of serum calcium and 25-hydroxyvitamin D in both groups were improved significantly by the end of the study (p
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- 2024
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