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The Content of Statistical Requirements for Authors in Biomedical Research Journals

Chinese Medical Journal 2016年第20期129卷 2491-2496页

作者： Tian-Yi Liu Si-Yu Cai xiao-Lu Hie Ya-Qi Lyu xiao-xia peng Guo-Shuang Feng Department of Epidemiology and Biostatistics School of Public HealthCapital Medical UniversityBeijing 100069China Center of Clinical Epidemiology and Evidence-based Medicine Beijing Children's HospitalCapital Medical UniversityBeijing 100045China

Background：Robust statistical designing,sound statistical analysis,and standardized presentation are important to enhance the quality and transparency of biomedical *** systematic review was conducted to summarize the statistical reporting requirements introduced by biomedical research journals with an impact factor of 10 or above so that researchers are able to give statistical issues＇ serious considerations not only at the stage of data analysis but also at the stage of methodological ***：Detailed statistical instructions for authors were downloaded from the homepage of each of the included journals or obtained from the editors directly via ***,we described the types and numbers of statistical guidelines introduced by different press *** of statistical reporting guideline as well as particular requirements were summarized in frequency,which were grouped into design,method of analysis,and presentation,***,updated statistical guidelines and particular requirements for improvement were summed ***：Totally,21 of 23 press groups introduced at least one statistical *** than half of press groups can update their statistical instruction for authors gradually relative to issues of new statistical reporting *** addition,16 press groups,covering 44 journals,address particular statistical *** most of the particular requirements focused on the performance of statistical analysis and transparency in statistical reporting,including ＂address issues relevant to research design,including participant flow diagram,eligibility criteria,and sample size estimation,＂ and ＂statistical methods and the reasons.＂ Conclusions：Statistical requirements for authors are becoming increasingly *** requirements for authors remind researchers that they should make sufficient consideration not only in regards to statistical methods during the research design,but also standardized statistical

关键词： Biomedical Research Journal Statistical Reporting Requirement Systematic Review

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Cosinor-rhythmometry for 24-h urinary sodium,potassium,creatinine excretion in the Chinese adult population

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Chinese Medical Journal 2021年第5期134卷 539-545页

作者： Ya-Guang peng Jing-Jing Feng Ying Zhang Kun Li Si-Yu Cai Ruo-Hua Yan xiao-xia peng Center for Clinical Epidemiology&Evidence-based Medicine National Center for Children's HealthBeijing Children's HospitalCapital Medical UniversityBeijing 100045China department of Nursing Administration and Rehabilitation Research National Institute of Hospital AdministrationBeijing 100044China Department of Diseases Prevention and Control Third HospitalPeking UniversityBeijing 100191China Center for Endocrine Metabolism and Immune Diseases Beijing Luhe HospitalCapital Medical UniversityBeijing 101149China

Background:The low accuracy of equations predicting 24-h urinary sodium excretion using a single spot urine sample contributed to the misclassification of individual sodium intake *** application of single spot urine sample is limited by a lack of representativity of urinary sodium excretion,possibly due to the circadian rhythm in urinary *** study aimed to explore the circadian rhythm,characteristics,and parameters in a healthy young adult Chinese population as a theoretical foundation for developing new ***:Eighty-five participants(mean age 32.4 years)completed the 24-h urine ollction by sccessively cllecing each of the single-voided specimens within 24 *** concentrations of the urinary sodium,potassium,and creatinine for cach voided specimen were *** analysis was applied to explore the circadian rhythm of the urinary sodium,potassium,and creatinine *** excretion per hour was computed for analyzing the change over time with repeated-measures analysis of variance and a cubic spline ***:The metabolism of urinary sodium,potassium,and creatinine showed different patterns of circadian rhythm,although the urinary sodiurm excretion showed non-significant parameters in the cosinor model.A significant circadian rhythm of urinary creatinine excretion was observed,while the circadian rhythm of sodium was less significant than that of *** circadian rhythm of urinary sodium and creatinine excretion showed synchronization to some extent,which had a nocturnal peak and fell to the lowest around noon to *** contrast,the peak of potassium was observed in the morning and dropped to the lowest point in the *** hourly urinary excretion followed a similar circadian ***:It is necessary to consider the circadian rhythm of urinary sodium,potassium,and creatinine excretion in adults while exploring the estimation model for 24-h urinary sodium excretion using spot urine.

关键词： Circadian rhythm Sodium urinary excretion Cosinor analysis Spot urine 24-h urine

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Generalized Product of Iteration Function System

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Computer Aided Drafting,Design and Manufacturing 2005年第2期15卷 44-49页

作者： ZHAO Ting-ting WEI xiao-peng xia Jun-tian SANG Lin University Key Lab of Information Science ＆ Engineering Dalian University Dalian 116622 China

The definition of generalized product of fractal is first put forward for the research on the relations between original fractal and its product of fractal when the transformations of iteration function system （IFS） are incomplete. Then the representations of generalized product of IFS are discussed based on the theory of the product of fractal. Furthermore, the dimensional relations between the product of fractal and its semi-product are obtained. The dimensional relations of self-similar set are discussed. Finally, the examples for rendering fractal graphs are given. These results posses potentials in image compression and pattern recognition.

关键词： fractal iteration function system product of fractal semi-product of fractal generalized product of fractal

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Sleep Duration and Factors Related to Sleep Loss in 3-14-Year-Old Children in Beijing： A Cross-Sectional Survey

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Chinese Medical Journal 2018年第15期131卷 1799-1807页

作者： xiao-Dan Li Jun Tai Zhi-Fei Xu Gui-xiang Wang Yun-xiao Wu Jiang-Nan Du Jie Zhang xiao-xia peng Xin Ni Department of Otorhinolaryngology-Head and Neck Surgery Beijing Children's Hospital Capital Medical University Beijing 100045 China Department of Respiratory Beijing Children's Hospital Capital Medical University Beijing 100045 China Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery Beijing Pediatric Research Institute Beijing Children's Hospital Capital Medical University Beijing 100045 China Center for Clinical Epidemiology and Evidence-based Medicine Beijing children's Hospital Capital Medical University Beijing 100045 China

Background： It is known that short sleep duration adversely affects children＇s behavior and physical development. This study aimed to investigate the status of sleep duration in 3-14-year-old children in Beijing and explore the related factors of sleep loss with them. Methods： In this study, a cross-sectional study of random stratified cluster sampling was conducted on 3-14-year-old children and adolescents in Beijing. According to the proportion of children in each district and school, the final cohort included a total of 11 kindergartens, 7 primary schools, and 8 junior high schools from 7 districts of Beijing. Children of sampled classes were included, and their parents were invited to fill a series of questionnaires including the simplified Chinese version of Pediatric Sleep Questionnaire, Sleep Questionnaire Scale, and Hong Kong-Children Sleep Questionnaire about the performance of the last 6 months. Results： Out of the total 11,420 questionnaires, 9198 questionnaires were valid and effective with the response rate of 80.54%. The age of the investigated children was 8.8 ± 3.8 years, including 4736 males and 4462 females. The daily sleep duration of children in Beijing was 9.7 ± 0.7 h. The prevalence of sleep loss （〈9 h/day） of children in Beijing was 11.8%. The daily sleep duration of children aged 〈6, 6 ≤ age 〈11, and ≥11 years was 9.7 ± 0.6 h, 9.6 ± 0.6 h, and 9.5 ± 0.8 h, respectively. The sleep duration reduced significantly in children aged ≥11 years as compared to younger children in Beijing which was mainly contributed by the variation tendency of sleep duration on weekdays. The multivariate logistic regression analysis identified factors associated with sleep loss （P 〈 0.05）： male （odds ratio [OR] = 1.32, 95% confidence interval [CI ]： 1.15-1.51 ）, age ≥11 years （OR = 2.37, 95% CI： 1.92-2.93）, overweight （OR = 1.34, 95% CI： 1.17-1.54）, family history of snoring （OR - 1.35, 95% CI： 1.13-1.61 ） and activities before bedtime with watching TV （OR = 1.24, 95

关键词： Child Cross-Sectional Survey Sleep Duration

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Potential dependence in electrocatalysis: a theoretical perspective

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Science China Chemistry 2025年第1期68卷 21-25页

作者： Leyu Liu Zhaoming xia Zeyu Wang Yinjuan Chen Hai xiao Department of Chemistry Tsinghua University Fundamental Science Center of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou University

Electrocatalysis is a key technology for the new energy era and sustainable development, serving as the interface for interconversion of electrical and chemical energies, which spans a wide spectrum of applications in sustainable energy and environmental engineering. Electrocatalytic reactions including electrochemical CO2reduction reaction （eCO2RR）, hydrogen evolution reaction （HER）, and oxygen evolution/reduction reactions （OER/ORR）, hold essential promise for renewable energy technologies as well as complement the biogeochemical carbon and oxygen cycles.

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太兴铁路穿越吕梁山段越岭方案研究

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铁道标准设计 2017年第7期61卷 28-31页

作者：夏晓鹏中铁工程设计咨询集团有限公司太原设计院太原030013

为确定太原至兴县铁路穿越吕梁山脉的方案,设计人员进行了大范围的线路比选。通过对工程所经地区控制选线的因素进行说明,结合地方规划和环境敏感点等着重选取沿湫水河的大石林沟垭口方案和沿蔚汾河的野鸡山垭口方案进行研究,从工程规... 详细信息

为确定太原至兴县铁路穿越吕梁山脉的方案,设计人员进行了大范围的线路比选。通过对工程所经地区控制选线的因素进行说明,结合地方规划和环境敏感点等着重选取沿湫水河的大石林沟垭口方案和沿蔚汾河的野鸡山垭口方案进行研究,从工程规模、工程投资、地方规划、环境保护等方面进行比较分析,最终确定沿湫水河的大石林沟垭口方案为合理越岭方案。通过对越岭方案研究过程进行论述,提出了一种设计思路,可为类似工程提供一定的借鉴作用。

关键词：太兴铁路越岭方案环境敏感点地方规划

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Electrochemical conversion of methane to bridge the gap in the artificial carbon cycle

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Journal of Energy Chemistry 2025年第1期100卷 286-308页

作者： Yuhao peng Yuefeng Song Ihar Razanau Juanxiu xiao Wei xiao Di Hu Guoxiong Wang College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Dalian Institute of Chemical Physics Chinese Academy of Sciences Laboratory of Physical-Chemical Technologies SSPA Scientific and Practical Materials Research Centre of NAS of Belarus State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University Department of Chemical and Environmental Engineering University of Nottingham Ningbo China

Methane, an abundant one-carbon（C1） resource, is extensively used in the industrial production of vital fuels and value-added chemicals. However, current industrial methane conversion technologies are energy-and carbon-intensive, mainly due to the high activation energy required to break the inert C–H bond, low selectivity, and problematic side reactions, including CO2emissions and coke deposition. Electrochemical conversion of methane（ECM） using intermittent renewable energy offers an attractive solution, due to its modular reactor design and operational flexibility across a broad spectrum of temperatures and pressures. This review emphasizes conversion pathways of methane in various reaction systems, highlighting the significance and advantages of ECM in facilitating a sustainable artificial carbon cycle. This work provides a comprehensive overview of conventional methane activation mechanisms and delineates the complete pathways of methane conversion in electrolysis contexts. Based on surface/interface chemistry, this work systematically analyzes proposed reaction pathways and corresponding strategies to enhance ECM efficiency towards various target products, including syngas, hydrocarbons, oxygenates, and advanced carbon materials. The discussion also encompasses opportunities and challenges for the ECM process, including insights into ECM pathways, rational electrocatalyst design, establishment of benchmarking protocols, electrolyte engineering, enhancement of CH4conversion rates, and minimization of CO2emission.

关键词： Activation energy

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Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： xiao xiang Feng Gao Yu-Gui peng peng Wu Zong-Lin Li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

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CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-peng Wang Guo-Cui Mao Hui-Lin Jiang Bao-xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： CO 2 methanation Metal hydride Ni catalysts Carbonate Metal-carbonate interface

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基于视感知特征的多光谱高保真降维方法研究

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光谱学与光谱分析 2017年第1期37卷 177-182页

作者：梁金星万晓霞卢玮朋武汉大学印刷与包装系湖北武汉430079

为解决多光谱数据在降维压缩过程中的颜色精度保持问题,提出一种基于人眼视觉感知特征的多光谱数据高保真降维压缩方法(VPCM)。研究首先依据人眼视觉响应的非线性解析特征,成功构建了同时综合人眼光谱特征与色度特征的变换函数,并通过... 详细信息

为解决多光谱数据在降维压缩过程中的颜色精度保持问题,提出一种基于人眼视觉感知特征的多光谱数据高保真降维压缩方法(VPCM)。研究首先依据人眼视觉响应的非线性解析特征,成功构建了同时综合人眼光谱特征与色度特征的变换函数,并通过进一步构造的优化函数对其进行修正,以针对不同的样本集找到最佳变换方向,而后利用修正后的视觉特征变换函数对光谱样本集进行空间变换(Γ(S)=C),然后利用主成分分析方法对经视觉特征函数变换后样本集光谱数据进行降维压缩处理,并通过逆变换重构出样本集光谱数据(Γ-1(C)=^S),进行降维评价。实验选取四类具有典型代表性的数据集作为测试样本,分别以D50/2°条件下的CIELab色差和75组典型照明光源(钨丝灯、荧光灯和LED灯)下的平均同色异谱指数(MMI)作为色度主要评价指标,同时对比了Lab-PQR和2-XYZ两种较为先进的光谱降维算法。实验结果为VPCM方法的MMI值最小,其次是LabPQR,而2-XYZ的表现较差;VPCM方法在75组光源下对四组样本集的平均重构色差ΔEab也为最小,且最大样本平均色差及方差均要小于其他两种方法;VPCM方法的重构光谱精度介于Lab-PQR和2-XYZ之间,Lab-PQR的重构光谱精度最高。实验结果显示新方法色度压缩精度整体优于对比的两种方法,在变换参考条件下具有良好的色差稳定性,能够较好的应用于多光谱数据色度高保真压缩。

关键词：多光谱视觉特征函数光谱降维主成分分析色度精度

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