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| 1 | The differences and similarities between two-sample t-test and paired t-test显示文摘临床研究中经常遇到比较实验组和对照组之间的结果。双样本t检验(又称为独立样本t检验)和配对t检验可能是运用于比较两个样本之间均值的最广泛的统计方法。然而,这两种方法的运用会产生混淆,从而导致使用不当。本文中,我们讨论了这两种t检验之间的异同性,并运用三个范例来阐述双样本t检验和配对t检验的计算过程。 | 徐曼菲 Drew FRALICK Julia Z.ZHENG Bokai Wang Xin M.TU Changyong FENG | 2017 | 上海精神医学2017，29，3： | 8 |
| 2 | 数据分析中的对数转换和意义(英文)显示文摘对数转换的方法在生物医学和社会心理研究中处理非正态数据时被广泛应用。本文重点介绍该传统方法在处理非正态数据时存在的严重问题。尽管通常认为对数转换可以减少数据的变异性,使数据更符合正态分布,但是通常并非如此。此外,对数转换后的数据得出的标准统计测试结果往往和未转化的原始数据不相关。我们通过使用模拟数据示例来说明这些问题。我们认为如果采用数据转换,必须非常谨慎应用。我们建议研究者在大多数情况下摒弃这些处理非正态数据的传统方法,选择采用较新的不依赖于数据分布的方法:如广义估计方程(GEE)。 | Changyong FENG Hongyue WANG Naiji LU Tian CHEN Hua HE Ying LU Xin M.TU | 2014 | 上海精神医学2014，26，2： | 7 |
| 3 | 单因素与多因素逻辑回归的不一致性(英文)显示文摘逻辑回归是研究协变量对二元结果影响的一种常用的统计方法。它已被广泛应用于临床试验和观察性研究。然而,单因素回归得到的结果和多元逻辑回归得到的结果往往是相互矛盾的。在多元回归中可能对结果会显示出非常强烈的影响的一个协变量在单因素回归中可能不会,反之亦然。这些事实在生物医学研究中并没有引起足够的重视。误用逻辑回归在医学出版物中非常普遍。在本文中,我们研究了单因素和多因素逻辑回归分析的不一致性,并在多元逻辑回归分析的模型部分中给出建议。 | Hongyue WANG Jing PENG Bokai WANG Xiang LU Julia Z.ZHENG Kejia WANG Xin M.TU Changyong FENG | 2017 | 上海精神医学2017，29，2： | 5 |
| 4 | Palaeoecological Analysis of Trace Fossil Sinusichnus sinuosus from the Middle Triassic Guanling Formationin Southwestern China显示文摘The Luoping Biota discovered from the early Middle Triassic(Anisian) Guanling Formation of southwestern China represents a fully recovered shallow marine ecosystem, marking the end point of Early Triassic biotic recovery following the end-Permian mass extinction. Contemporaneously preserved are prolific trace fossils, which offer good opportunities to understand the palaeoecology of marine invertebrates from a fully recovered shallow marine ecosystem. Here we present a newly discovered sinuous branching burrow from the fossil-bearing unit in Member II of the Guanling Formation. Several features, including the horizontal regular sinuous nature, the branching pattern, typical H-junction, and the small wavelength/amplitude ratio of these sinuous structures within the burrow systems justify assignment of these traces as Sinusichnus sinuosus, a trace possibly produced by decapod crustaceans. Close association of S. sinuosus with Rhizocorallium commune suggests a deposit-feeding strategy of these trace makers. The newly reported Anisian material from the Guanling Formation in Luoping represents first report of Sinusichnus from South China. The global record of Sinusichnus occurrence suggests that these burrows might have an older history than Early Middle Triassic. | Mao Luo Yi-Ming Gong G. R. Shi Zhong-Qiang Chen Jinyuan Huang Shixue Hu Xueqian Feng Qiyue Zhang Changyong Zhou Wen Wen | 2018 | Journal of Earth Science2018，29，4： | 4 |
| 5 | 三种常用危险度测量方法之间的关系:相对危险度、危险差和比值比(英文)显示文摘概述:相对危险度(relative risk)、危险差(risk difference)和比值比(odds ratio)是最常用的三种比较不同群体之间疾病风险的方法。虽然它们在生物医学和社会心理学研究中广泛流行,但是尚无文献明确这三种方法之间的关系。许多研究人员误以为它们之间的关系是单调变化的,即某种测量方式中较高(或较低)的值与其它测量方式中的较高(或较低)的值相关。本文中,我们讨论了三个定理,并提供例子解释之前大部分研究人员所认为这三种方法之间的关系是不对的;这些测量方法相互之间并没有逻辑关系。研究人员在说明不同种测量方法之间的相关性时或结合使用不同种风险测量方法所得的研究结果时必须非常谨慎。 | Changyong FENG Hongyue WANG Bokai WANG Xiang LU Hao SUN Xin M.TU | 2016 | 上海精神医学2016，28，1： | 2 |
| 6 | 有效性试验、非劣效性试验、和等效试验之间的比较(英文)显示文摘概述:一种新型药物或治疗的效果通常是通过临床随机对照试验获得的。然而,假设的设定对生物医学研究者来说仍然是具有挑战性的问题。在本调查中,我们讨论了有效性试验、非劣效性试验、和等效性试验。这三类试验对治疗效果均有不同的假设。我们比较了这些试验中的假设并提供了样本量计算公式。 | Bokai WANG Hongyue WANG Xin M. TU Changyong FENG | 2017 | 上海精神医学2017，29，6： | 2 |
| 7 | The Effect of Core Material, Veneering Porce- lain, and Fabrication Technique on the Biaxial Flexural Strength and Weibull Analysis of Selected Dental Ceramics 显示文摘 | Wei-Shao Lin DDS Carlo Ercoli DDS Changyong Feng PhD | 2012 | Journal ofProsthodontics2012，21，5： | 1 |
| 8 | The influence of chitosan hydrogel on stem cell engraftment, survival and homing in the ischemic myocardial microenvironment显示文摘 | Zhiqiang Liu Haibin Wang Yan Wang Qiuxia Lin Anning Yao Feng Cao Dexue Li Jin Zhou Cuimi Duan Zhiyan Du Yanmeng Wang Changyong Wang | 2011 | Biomaterials2011，，11： | 1 |
| 9 | Suppression of the Heating Effect in a Geometric Logic Gating in a Strong Driving Assisted Cavity QEDScheme 显示文摘 | CHEN Changyong FENG Mang | 2008 | Phys Rev A2008，77，01： | 1 |
| 10 | 赢率-医学研究中一个直观而易于解释的综合结果(英文)显示文摘对于医学研究中的多个结果,研究人员总是需要选择是否使用一个综合性结果(综合多个结果后所得的)作为主要结果。在本文中,我们回顾了治疗效果的一个新测量方式-赢率,它可以很容易地用于具有多个优先级结果的研究中。并且,我们在这块领域也提出了一些研究课题。 | hongyue wang jing peng juila z.zheng bokai wang xiang lu chongshu chen xin m.tu changyong feng | 2017 | 上海精神医学2017，29，1： | 1 |
| 11 | 辛普森悖论的范例(英文)显示文摘概述:辛普森悖论普遍存在于很多领域。它具有数据的条件性和边缘性解释之间的不一致特征。在本文中,我们通过一些例子来阐述辛普森悖论是如何在连续性、分类和时间-事件数据中产生的。 | Bokai WANG Pan WU Brian KWAN Xin M.TU Changyong FENG | 2018 | 上海精神医学2018，30，2： | 1 |
| 12 | 精神医学中的生物统计学(15) 对观察性数据和聚类数据应用生存分析评估个体和环境的自杀危险因素(英文)显示文摘1.Introduction Survival analysis concerns the time from a well-defined origin to some event of interest, such as the time from surgery to death of a cancer patient, the time from wedding to divorce, and the time between the first and second suicide attempts.Although originated in research on the active lifetime of light bulbs and other electric devices, modern applications of survival analysis include many non-survival events.Thus, survival analysis may be more appropriately called the time-to-event analysis. | Kerry Louise KNOX Alina BAJORSKA Changyong FENG Wan TANG Pan WU Xin Ming TU | 2013 | 上海精神医学2013，25，3： | 1 |
| 13 | Machine learning methods in psychiatry: a brief introduction显示文摘Machine learning(ML)techniques have been widely used to address mental health questions.We discuss two main aspects of ML in psychiatry in this paper,that is,supervised learning and unsupervised learning.Examples are used to illustrate how ML has been implemented in recent mental health research. | Zhirou Zhou Tsung-Chin Wu Bokai Wang Hongyue Wang Xin M Tu Changyong Feng | 2020 | General Psychiatry2020，33，1： | 1 |
| 14 | The p-value and model specification in statistics显示文摘SUMMARY The p value has been widely used as a way to summarise the significance in data analysis. However, misuse and misinterpretation of the p value is common in practice. Our result shows that if the model specification is wrong, the distribution of the p value may be inappropriate, which makes the decision based on the p value invalid. | Bokai Wang Zhirou Zhou Hongyue Wang Xin M Tu Changyong Feng | 2019 | General Psychiatry2019，32，3： | 0 |
| 15 | Sample sizes based on three popular indices of risks显示文摘Sample size justification is a very crucial part in the design of clinical trials. In this paper, the authors derive a new formula to calculate the sample size for a binary outcome given one of the three popular indices of risk difference.The sample size based on the absolute difference is the fundamental one, which can be easily used to derive sample size given the risk ratio or OR. | Hongyue Wang Bokai Wang Xin M Tu Jinyuan Liu Changyong Feng | 2018 | General Psychiatry2018，31，6： | 0 |
| 16 | Inconsistency between overall and subgroup analyses显示文摘Suppose we have a sample of subjects in two treatment groups.To study the difference of the treatment effects,we can analyse the data using all subjects(overall analysis).We may also divide the subjects into several subgroups based on some covariates of interest(eg,gender),and study the treatment effects within each subgroup.The results of these two analyses may be different or even in opposite directions.In this paper,we give a general sufficient condition of consistency between the overall and subgroup analyses. | Hongyue Wang Bokai Wang Xin M Tu Changyong Feng | 2022 | General Psychiatry2022，35，3： | 0 |
| 17 | Thermal runaway propagation behavior of the Cell-to-Pack battery system显示文摘Structurally compact battery packs significantly improve the driving range of electric vehicles.Technologies like Cell-to-Pack increase energy density by 15%-20%.However,the safety implications of multiple tightly-packed battery cells still require in-depth research.This paper studies thermal runaway propagation behavior in a Cell-to-Pack system and assesses propagation speed relative to other systems.The investigation includes temperature response,extent of battery damage,pack structure deformation,chemical analysis of debris,and other considerations.Results suggest three typical patterns for the thermal runaway propagation process:ordered,disordered,and synchronous.The synchronous propagation pattern displayed the most severe damage,indicating energy release is the largest under the synchronous pattern.This study identifies battery deformation patterns,chemical characteristics of debris,and other observed factors that can both be applied to identify the cause of thermal runaway during accident investigations and help promote safer designs of large battery packs used in large-scale electric energy storage systems. | Huaibin Wang Qinzheng Wang Zhenyang Zhao Changyong Jin Chengshan Xu Wensheng Huang Zhuchen Yuan Shuyu Wang Yang Li Yanhong Zhao Junli Sun Xuning Feng | 2023 | Journal of Energy Chemistry2023，，9： | 0 |
| 18 | 比较两组连续性结果的样本计算显示文摘概述:所有的临床研究都需要对样本量进行辨证。然而,对于众多生物医学和临床研究人员来说,把握度和样本量看起来就像一个统计学家的魔术。在本文中,我们讨论了把握度和样本量的计算,并说明生物医学和临床研究人员在该分析的可行性和意义中具有重要作用。因此,把握度分析的确是一个互动的过程,并且科学研究人员和统计人员在研究团队中是平等合作的伙伴。 | Julia Z. ZHENG Yangyi LI Tuo LIN Angelica ESTRADA Xiang LU Changyong FENG | 2017 | 上海精神医学2017，29，4： | 0 |
| 19 | 生物医学研究中因检测范围所限致数据缺失时简单填补法对人口几何均数推断的影响(英文)显示文摘概述:在生物医学和社会心理学研究中采用样本几何均值估计、比较人口几何均值的方法十分普遍。然而,由于测量工具的检测局限,有时无法观察到测量的实际值。处理这个问题的一种常见做法是用较小的正值常数来替代缺失值,然后在这些填补数据基础上进行统计推断。然而,这种简单的填补方法对推论的影响还没有研究过。我们在本文中阐明了这种简单的填补方法可能会大幅度地改变一项研究所报告的结果,因此即使检测限非常小,也会使结果难以解释。 | Hongyue WANG Guangqing CHEN Xiang LU Hui ZHANG Changyong FENG | 2015 | 上海精神医学2015，27，5： | 0 |
| 20 | Thermal safety boundary of lithium-ion battery at different state of charge显示文摘Thermal runaway(TR)is a critical issue hindering the large-scale application of lithium-ion batteries(LIBs).Understanding the thermal safety behavior of LIBs at the cell and module level under different state of charges(SOCs)has significant implications for reinforcing the thermal safety design of the lithium-ion battery module.This study first investigates the thermal safety boundary(TSB)correspondence at the cells and modules level under the guidance of a newly proposed concept,safe electric quantity boundary(SEQB).A reasonable thermal runaway propagation(TRP)judgment indicator,peak heat transfer power(PHTP),is proposed to predict whether TRP occurs.Moreover,a validated 3D model is used to quantitatively clarify the TSB at different SOCs from the perspective of PHTP,TR trigger temperature,SOC,and the full cycle life.Besides,three different TRP transfer modes are discovered.The interconversion relationship of three different TRP modes is investigated from the perspective of PHTP.This paper explores the TSB of LIBs under different SOCs at both cell and module levels for the first time,which has great significance in guiding the thermal safety design of battery systems. | Hang Wu Siqi Chen Yan Hong Chengshan Xu Yuejiu Zheng Changyong Jin Kaixin Chen Yafei He Xuning Feng Xuezhe Wei Haifeng Dai | 2024 | Journal of Energy Chemistry2024，91，4： | 0 |
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