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金融深化对个体行为及其福利的影响分析

财经研究 2010年第6期36卷 14-25,35页

作者：韩其恒李俊青上海财经大学金融学院上海200433 南开大学经济学院天津300380

文章在无限期不确定的分析框架下,分析了金融市场发展程度等经济参数对利率、个体行为及其福利的影响。研究结果表明一国资本市场的不发达会导致该国预防性储蓄的增加和消费波动的增加,同时也会导致该国利率的降低和个体福利的减少。

关键词：不完全资本市场预防性储蓄个体福利

Potential role of tanycyte-derived neurogenesis in Alzheimer's disease

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Neural Regeneration Research 2025年第6期20卷 1599-1612页

作者： Guibo qi han Tang Jianian Hu Siying Kang Song qin Department of Anatomy Histologyand EmbryologySchool of Basic Medical SciencesFudan UniversityShanghaiChina State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science Fudan UniversityShanghaiChina

Tanycytes, specialized ependymal cells located in the hypothalamus, play a crucial role in the generation of new neurons that contribute to the neural circuits responsible for regulating the systemic energy balance. The precise coordination of the gene networks controlling neurogenesis in naive and mature tanycytes is essential for maintaining homeostasis in adulthood. However, our understanding of the molecular mechanisms and signaling pathways that govern the proliferation and differentiation of tanycytes into neurons remains limited. This article aims to review the recent advancements in research into the mechanisms and functions of tanycyte-derived neurogenesis. Studies employing lineage-tracing techniques have revealed that the neurogenesis specifically originating from tanycytes in the hypothalamus has a compensatory role in neuronal loss and helps maintain energy homeostasis during metabolic diseases. Intriguingly,metabolic disorders are considered early biomarkers of Alzheimer's disease. Furthermore,the neurogenic potential of tanycytes and the state of newborn neurons derived from tanycytes heavily depend on the maintenance of mild microenvironments, which may be disrupted in Alzheimer's disease due to the impaired blood–brain barrier ***, the specific alterations and regulatory mechanisms governing tanycyte-derived neurogenesis in Alzheimer's disease remain unclear. Accumulating evidence suggests that tanycyte-derived neurogenesis might be impaired in Alzheimer's disease, exacerbating neurodegeneration. Confirming this hypothesis, however, poses a challenge because of the lack of long-term tracing and nucleus-specific analyses of newborn neurons in the hypothalamus of patients with Alzheimer's disease. Further research into the molecular mechanisms underlying tanycyte-derived neurogenesis holds promise for identifying small molecules capable of restoring tanycyte proliferation in neurodegenerative diseases. This line of investigation could pro

关键词： Alzheimer's disease blood–brain barrier ependymoglial cells hypothalamus metabolic diseases neural stem cells neurogenesis neuroinflammatory diseases neurons tanycyte

Exposure of individuals aged 18-44 years to personal care products in Beijing,China:Exposure profiles,possible influencing factors,and risk assessment

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Journal of Environmental Sciences 2025年第2期148卷 691-701页

作者： Xu Zhang Linxue han qi Sun Xiaochen Wang Xiaojian Hu Xiao Lin Ying Zhu China CDC Key Laboratory of Environment and Population Health National Institute of Environmental HealthChinese Center for Disease Control and PreventionBeijing 100021China The Bureau for Health Inspection and Supervision of Haidian District Beijing 100037China

Personal care products(PCPs)are a class of emerging pollutants that have attracted public concern owing to their harmful effects on humans and the *** data is valuable for insight the levels of PCPs in the human body and can be crucial for identifying potential health *** gain a better understanding of timely exposure profiles and health risk of reproductive-age population to PCPs,we determined six parabens,six benzophenone-type ultraviolet filters,and three disinfectants in 256 urine samples collected from young adults aged 18-44 years in Beijing,*** urinary levels of benzophenone-3(BP-3)and 4-hydroxybenzophenone(4-OHBP)were significantly higher in summer compared to winter,suggesting these compounds have different seasonal usage ***,the total concentration of 15 PCPs in female was 430 ng/mL,approximately two times higher than that in male.P-chloro-m-xylenol(PCMX),as a new type of antibacterial agent,has the greatest level among all target analytes,indicating the increasingly use of this antibacterial alternative *** potential influencing factors that lead to the elevated exposure level of PCPs were *** 19%of the target population had a high hazard index value(greater than 1)which was attributed to exposure to propyl paraben(PrP),benzophenone-1(BP-1),BP-3 and PCMX,indicating that PCPs may pose a relatively high exposure risk at environmental levels that should be a cause for concern.

关键词： Personal care products Hazard quotient Risk assessment Exposure patterns Urine

Stromal vascular fraction: Mechanisms and application in reproductive disorders

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World Journal of Stem Cells 2025年第1期17卷 71-79页

作者： Zhi-han Liu qi-qi Xie Jia-Lyu Huang Department of Clinical Medicine School of Queen MaryNanchang UniversityNanchang 330000Jiangxi ProvinceChina Center for Reproductive Medicine Jiangxi Key Laboratory of Reproductive HealthJiangxi Maternal and Child Health HospitalJiangxi Branch of National Clinical Research Center for Obstetrics and GynecologyNanchang Medical CollegeNanchang 330000Jiangxi ProvinceChina Center for Reproductive Medicine Jiangxi Maternal and Child Health HospitalJiangxi Branch of National Clinical Research Center for Obstetrics and GynecologyNanchang Medical CollegeNanchang 330008Jiangxi ProvinceChina

Stromal vascular fraction(SVF)is a complex mixture derived from adipose tissue,consisting of a variety of *** to its potential for tissue repair,immunomod-ulation,and support of angiogenesis,SVF represents a promising frontier in regenerative medicine and offers potential therapy for a range of disease *** this article,we delve into the mechanisms through which SVF exerts its effects and explore its potential applications in treating both male and female reproductive disorders,including erectile dysfunction,testicular injury,stress urinary incontinence and intrauterine adhesion.

关键词： Stromal vascular fraction Angiogenesis Inflammation Regenerative medicine Reproductive disorders

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深圳成分指数与上海综合指数的稳定分布

数理统计与管理 2007年第2期26卷 341-345页

作者：刘喜华韩其恒青岛大学经济学院山东青岛266071 上海财经大学金融学院上海200433

本文利用最大似然估计法与特征变换法分别对深圳成分指数(SZSI)与上海综合指数(SHCl)的日收益率分布进行了稳定分布的拟合,并进行了比较,验证了SZSI与SHCI日收益率序列的尖峰厚尾现象。

关键词：深圳成分指数上海综合指数稳定分布最大似然估计法特征变换法

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价值型投资在中国证券市场上的有力证据

上海财经大学学报 2007年第1期9卷 79-85页

作者：韩其恒于旭光上海财经大学金融学院上海200433

本文给出了1994年至2005年间价值型投资在中国A股市场中的有力证据。Fama-Mac-Beth回归表明在中国A股市场中存在着显著的市盈率和市净率溢价,1994年至2005年中牛市和熊市的滚动策略显示了我国A股市场中的价值效应,并且风险和收益之间基... 详细信息

本文给出了1994年至2005年间价值型投资在中国A股市场中的有力证据。Fama-Mac-Beth回归表明在中国A股市场中存在着显著的市盈率和市净率溢价,1994年至2005年中牛市和熊市的滚动策略显示了我国A股市场中的价值效应,并且风险和收益之间基本上呈现出收益大、风险大的特征。本文的实证研究结果将有助于中小投资者以及机构投资者的长期投资决策。

关键词：市盈率市净率价值型投资Fama-MacBeth回归滚动策略

Rosaceae phylogenomic studies provide insights into the evolution of new genes

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Horticultural Plant Journal 2025年第1期11卷 389-405页

作者： Lan Jiang Xiaoxu Li Kun Lyu han Wang Zhiyuan Li Wang qi Lin Zhang Yunpeng Cao Anhui Province Key Laboratory of Non-coding RNA Basic and Clinical Transformation(Wannan Medical College) Central LaboratoryYijishan Hospital of Wannan Medical CollegeWuhuAnhui 241000China Beijing Life Science Academy Beijing 102209China CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubei 430074China Center of Economic Botany Core Botanical GardensChinese Academy of SciencesWuhanHubei 430074China Key Laboratory for Tobacco Gene Resources Tobacco Research InstituteChinese Academy of Agricultural SciencesQingdaoShangdong 266000China school of Life Sciences Anhui Agricultural UniversityHefeiAnhui 230036China School of Basic Medical Sciences Hubei University of Chinese MedicineWuhanHubei 430065China

Rosa banksiae,known as Lady Banks'rose,is a perennial ornamental crop and a versatile herb in traditional Chinese *** the lack of genomic resources,we assembled a Hi Fi and Nanopore sequencing-derived 458.58 Mb gap-free telomere-to-telomere high-quality *** genome with a scaffold N50=63.90 *** genome of *** exhibited no lineage-specific whole-genome duplication compared with other *** phylogenomic analysis of 13 Rosaceae and Arabidopsis through a comparative genomics study showed that numerous gene families were lineage-specific both before and after the diversification of *** of these genes are candidates for new genes that have evolved from parental genes through fusion *** genes are divided into three types:Type-I and Type-II genes contain two parental genes that are generated by duplication,distributed in the same and different regions of the genome,respectively;and Type-III can only be detected in one parental ***,Type-I genes are found to have more relaxed selection pressure and lower Ks values than Type-II,indicating that these newly evolved Type-I genes may play important roles in driving phenotypic *** analysis exhibited that newly formed fusion genes can regulate the phenotype traits of plant growth and development,suggesting the functional significance of these *** study identifies new fusion genes that could be responsible for phenotype evolution and provides information on the evolutionary history of recently diverged species in the Rosa *** data represents the major progress in understanding the new fusion genes evolution pattern of Rosaceae and provides an invaluable resource for phylogenomic studies in plants.

关键词： Rosa banksiae Gap-free genome Rosaceae Phenotype Evolutionary patterns

农村劳动力迁移摩擦影响农民工数量与工资结构吗?

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管理科学学报 2018年第1期21卷 13-30页

作者：韩其恒苗二森李俊青上海财经大学金融学院上海200433 南开大学经济学院天津300071

运用世代交叠模型研究了迁移摩擦对城乡劳动力迁移结构变迁的长期动态特征影响.研究表明,在城乡劳动力市场分割的前提下,迁移成本、城镇失业人员的工资和暂时性迁移工人的工作摩擦共同刻画了中国城乡劳动力迁移的动态变化特征.当迁移摩... 详细信息

运用世代交叠模型研究了迁移摩擦对城乡劳动力迁移结构变迁的长期动态特征影响.研究表明,在城乡劳动力市场分割的前提下,迁移成本、城镇失业人员的工资和暂时性迁移工人的工作摩擦共同刻画了中国城乡劳动力迁移的动态变化特征.当迁移摩擦变化时,农村迁移人员会理性地调整对教育的投资,进而会影响到迁移人员的教育结构和数量结构,而教育投资函数的凹函数性质和迁移人员风险厌恶的特征使得技术工对迁移摩擦变动更敏感,引起技术工的劳动供给更明显的变化,进而引起技术工工资更明显变化,为"迁移之谜"出现提供了可能.改善迁移人员的住房条件、医疗保障服务和完善劳动力市场机制,从而降低迁移成本、增加暂时性迁移工人的就业概率,是加快中国城乡迁移进程和解决中国"迁移之谜"的有效政策.

关键词：迁移摩擦迁移之谜工资结构

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变动均值和方差资产配置模型的应用研究

中国管理科学 2018年第2期26卷 107-115页

作者：吴文生盛世杰韩其恒合肥工业大学经济学院安徽合肥230009 上海财经大学金融学院上海200439

本文在均值一方差模型的基础上，以改善估计误差为主线，选取了10种变动均值一方差的资产配置模型，以等权重策略为基准，运用了确定性等价收益和Alpha值为判断准则，同时考虑了允许卖空限制和非允许卖空的情况，实证研究结果表明：虽... 详细信息

本文在均值一方差模型的基础上，以改善估计误差为主线，选取了10种变动均值一方差的资产配置模型，以等权重策略为基准，运用了确定性等价收益和Alpha值为判断准则，同时考虑了允许卖空限制和非允许卖空的情况，实证研究结果表明：虽然在资本市场中配置模型并不能显著战胜等权重策略，但随着投资范围的扩大，模型开始显现配置效果，尤其在Alpha准则下，变动均值一方差资产配置显著。同时本文还将实证结果和目前我国投资者的实际资产配置情况进行了比较，发现了现实配置结构中的不合理之处，并提出了相应的改善建议。最后对4类常用资产进行了模拟研究，其结果也进一步证实了本文的结论。

关键词：资产配置卖空限制均值一方差估计误差