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Double Hilbert transform on D（R2）

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Frontiers of Mathematics in China 2013年第4期8卷 783-799页

作者： xiaona cui Rui WANG Dunyan YAN School of Mathematical Sciences University of Chinese Academy of Sciences Beijing 100049 China Sch-oolof Mathematics Jilin University Changchun 130012 China

We introduce a space DHH =D（R2） H2H1D（R2）, where D（R2） is the testing function space whose functions are infinitely differentiable and have bounded support, and H2H1D（R2） is the space the double Hilbert transform acting on the testing function space. We prove that the double Hilbert transform is a homeomorphism from DHH onto itself.

关键词： Double Hilbert transform vanishing moments homeomorphism

Boundedness for a Class of Operators on Weighted Morrey Space with RD-measure

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Journal of Partial Differential Equations 2022年第4期35卷 395-408页

作者： cui xiaona LU Yongjin LI Mengmeng Department of Mathematics and Information Science Henan Normal UniversityXinxiang 453007China Department of Mathematics and Statistics Oakland UniversityRochesterMI48309USA College of International Education Henan Normal UniversityXinxiang 453007China.

this paper,we study a class of sublinear operators and their commutators with a weighted BMO *** first give the definition of a weighted Morrey space Lpo(X)where X is an RD-measure and w is the weight *** weighted Morrey spaces arise from studying the local behavior of solutions to certain partial differential *** will show that the aforementioned class of operators and their communtators with a weighted BMO function are bounded in the weighted Morrey space LPpto(X)provided that the weight function w belongs to the Ap(μ)-class and satisfiesthereverseHolder'scondition.

关键词： Weighted Morrey space RD-measure commutator

NUA and ESD4 negatively regulate ABA signaling during seed germination

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Stress Biology 2022年第1期2卷 211-222页

作者： xiaona cui Mengyang Lv Yuanyuan Cao Ziwen Li Yan Liu Zhenzhen Ren Hairong Zhang College of Life sciences Henan Agricultural UniversityZhengzhou 450002China State Key Laboratory of Wheat and Maize Crop Science Henan Agricultural UniversityZhengzhou 450002China

The phytohormone abscisic acid(ABA)plays important roles in plant growth,development and adaptative responses to abiotic ***1-related protein kinase 2s(SnRK2)are key components that activate the ABA core signaling *** PORE ANCHOR(NUA)is a component of the nuclear pore complex(NPC)that involves in deSU-MOylation through physically interacting with the EARLY IN SHORT DAYS 4(ESD4)SUMO ***,it is not clear how NUA functions with SnRK2 and ESD4 to regulate ABA *** our study,we found that nua loss-of-function mutants exhibited pleiotropic ABA-hypersensitive *** also found that ABA-responsive genes remarkably up-regulated in nua by exogenous *** nua snrk2.2 snrk2.3 triple mutant and nua abi5 double mutant partially rescued the ABA-hypersensitive phenotype of nua,thereby suggesting that NUA is epistatic to ***,we observed that esd4-3 mutant was also *** and ESD4 were further demonstrated to physically interact with SnRK2s and negatively regulate ABA signaling by reducing SnRK2s *** together,our findings uncover a new regulatory mechanism that can modulate ABA signaling.

关键词： ABA signaling SnRK2 SUMOylation NUA ESD4

幔源岩浆在地壳中分层侵位的控制因素:二维热-力学模拟

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岩石学报 2024年第4期40卷 1087-1101页

作者：崔晓娜陈林中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029 中国科学院大学地球与行星科学学院北京100049

幔源岩浆在地壳内的上升和聚集样式不仅依赖于岩浆自身的性质,还取决于围岩的强度和热状态。已有数值和物理模型大多关注岩浆自身物性对其上升过程的影响,而对围岩流变强度或热状态如何影响岩浆的上升和聚集过程的研究相对薄弱,尤其是... 详细信息

幔源岩浆在地壳内的上升和聚集样式不仅依赖于岩浆自身的性质,还取决于围岩的强度和热状态。已有数值和物理模型大多关注岩浆自身物性对其上升过程的影响,而对围岩流变强度或热状态如何影响岩浆的上升和聚集过程的研究相对薄弱,尤其是周期性的幔源岩浆在壳内分层侵位的受控因素仍然不清楚。本文利用二维热-力学数值模拟方法,通过发展多期岩浆脉冲和岩墙生成算法,研究了岩浆从深部地幔上升至地壳内部侵位的动力学过程,系统测试了地壳(围岩)地温梯度(上、下地壳的地温梯度分别以GUC和GLC表示)和地壳强度对岩浆上升过程和聚集样式的影响。模拟结果表明:(1)地壳地温梯度对岩浆的侵位深度有重要影响,岩浆侵入冷地壳(GUC=GLC=12.5K/km),岩浆主体在岩石圈深度聚集,地表的相对高差小于140m;岩浆侵入温地壳(GUC=GLC=15K/km)在下地壳底部聚集形成岩浆房,上升至上、下地壳界面,岩浆房上方的地表地形呈现中心拗陷两翼隆起的形态,地表最大高程可达3km;岩浆侵入热地壳(GUC=GLC=17.5K/km)仅在下地壳底部聚集形成岩浆房,地形演化特征与温地壳背景的情况类似,但最大高程小于1.5km。(2)在同等地壳地温梯度条件下,上、下地壳的相对强度决定了岩浆的聚集样式:下地壳的强度越弱,岩浆更易在下地壳聚集形成岩浆房;上地壳的强度越弱,岩浆更易在地表喷发。进一步分析表明:岩浆的聚集样式受地壳地温梯度与地壳流变分层性的共同控制,地壳越热且流变强度分层性越显著则越有利于岩浆在地壳中的多层级侵位;每一期岩浆脉冲的供给均会导致岩浆房内部的超压值骤增。我们的模拟结果对理解火山喷发前壳内岩浆的赋存状态及岩浆活动区的地形演化具有启示意义。

关键词：岩浆地壳地温梯度粘度数值模拟

Local Well-Posedness and Blow Up Criterion for the Inviscid Boussinesq System in Holder Spaces

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Journal of Partial Differential Equations 2012年第3期25卷 220-238页

作者： cui xiaona DOU Changsheng JIU Quansen School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China LCP Institute of Applied Physics and Computational MathematicsBeijing 100088China School of Mathematical Sciences Capital Normal UniversityBeijing 100048China

We prove the local in time existence and a blow up criterion of solution in the Holder spaces for the inviscid Boussinesq system in RN,N ≥ 2, under the assumptions that the initial values θo,uo ∈ Cr, with 1 〈 r ≠ 2.

关键词： Inviscid Boussinesq system local well-posedness blow-up criterion.

Identification of key genes and pathways in mild and severe nonalcoholic fatty liver disease by integrative analysis

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Chronic Diseases and Translational Medicine 2021年第4期7卷 276-286页

作者： Jin Feng Tianjiao Wei xiaona cui Rui Wei Tianpei Hong Department of Endocrinology and Metabolism Peking University Third HospitalBeijing 100191China

Background:The global prevalence of nonalcoholic fatty liver disease(NAFLD)is *** pathogenesis of NAFLD is multifaceted,and the underlying mechanisms are *** conducted data mining analysis to gain a better insight into the disease and to identify the hub genes associated with the progression of ***:The dataset GSE49541,containing the profile of 40 samples representing mild stages of NAFLD and 32 samples representing advanced stages of NAFLD,was acquired from the Gene Expression Omnibus *** expressed genes(DEGs)were identified using the R programming *** Database for Annotation,Visualization and Integrated Discovery(DAVID)online tool and Search Tool for the Retrieval of Interacting Genes/Proteins(STRING)database were used to perform the enrichment analysis and construct protein-protein interaction(PPI)networks,***,transcription factor networks and key modules were *** hub genes were validated in a mice model of high fat diet(HFD)-induced NAFLD and in cultured HepG2 cells by real-time quantitative ***:Based on the GSE49541 dataset,57 DEGs were selected and enriched in chemokine activity and cellular component,including the extracellular *** transcription factors associated with DEGs were indicated from PPI *** expression of five hub genes(SOX9,CCL20,CXCL1,CD24,andCHST4),which were identified from the dataset,was also observed in the livers of HFD-induced NAFLD mice and in HepG2 cells exposed to palmitic acid or advanced glycation end ***:The hub genesSOX9,CCL20,CXCL1,CD24,andCHST4 are involved in the aggravation of *** results offer new insights into the underlying mechanism of NAFLD progression.

关键词： Nonalcoholic fatty liver disease Fatty liver Computational biology

NCP1/At MOB1A plays key roles in auxin-mediated Arabidopsis development

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NCP1/At MOB1A plays key roles in auxin-mediated Arabidopsis ...

青蒿对新西兰断奶肉兔生长性能和免疫性能的影响研究

2016年全国植物生物学大会

作者： xiaona cui Zhiai Guo Lizhen Song Yanli Wang Youfa Cheng Key Laboratory of Plant Molecular Physiology Institute of BotanyChinese Academy of Sciences University of Chinese Academy of Sciences

MOB1 protein is a core component of the Hippo signaling pathway in animals,where it is involved in controlling tissue growth and tumor suppression. Plant MOB1 proteins display high sequence homology to animal MOB1 proteins,but little is known regarding their role in plant growth and development. Herein we report the critical roles of Arabidopsis MOB1(At MOB1A) in auxin-mediated development in Arabidopsis. We found that loss-of-function mutations in At MOB1 A completely eliminated the formation of cotyledons when combined with mutations in PINOID(PID),which encodes a Ser/Thr protein kinase that participates in auxin signaling and transport. We show ed that atmob1 a was fully rescued by its Drosophila counterpart,suggesting functional conservation. The atmob1 a pid double mutants phenocopied several well-characterized mutant combinations that are defective in auxin biosynthesis or transport. Moreover,we demonstrated that atmob1 a greatly enhanced several other known auxin mutants,suggesting that At MOB1 A plays a key role in auxinmediated plant development. The atmob1 a single mutant displayed defects in early embryogenesis and had shorter root and smaller flowers than wild type plants. At MOB1 A is uniformly expressed in embryos and suspensor cells during embryogenesis,consistent with its role in embryo development. At MOB1 A protein is localized to nucleus,cytoplasm,and associated to plasma membrane,suggesting that it plays roles in these subcellular localizations. Furthermore,we showed that disruption of At MOB1 A led to a reduced sensitivity to exogenous auxin. Our results demonstrated that At MOB1 A plays an important role in Arabidopsis development by promoting auxin signaling.

关键词： NCP1/At MOB1A Hippo pathway auxin embryogenesis

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黑龙江畜牧兽医 2023年第8期 101-105页

作者：崔晓娜山东畜牧兽医职业学院山东潍坊261061

为了研究青蒿在新西兰断奶肉兔生产中的应用效果,试验按照单因素试验设计将240只28日龄、体重相近(710 g左右)的新西兰断奶肉兔随机分为4组(对照组、试验Ⅰ组、试验Ⅱ组、试验Ⅲ组),每组10个重复,每个重复6只,公母各半,对照组仅饲喂基... 详细信息

为了研究青蒿在新西兰断奶肉兔生产中的应用效果,试验按照单因素试验设计将240只28日龄、体重相近(710 g左右)的新西兰断奶肉兔随机分为4组(对照组、试验Ⅰ组、试验Ⅱ组、试验Ⅲ组),每组10个重复,每个重复6只,公母各半,对照组仅饲喂基础日粮,试验Ⅰ组、试验Ⅱ组、试验Ⅲ组分别饲喂基础日粮+2%、4%、6%青蒿粉,青蒿粉等量替代基础日粮中的花生秧,预试期7 d,正试期40 d,测定各组生长性能(初始重、终末重、平均日增重、平均日采食量和料重比)、血清生化指标(总蛋白、白蛋白、球蛋白水平和尿素氮、葡萄糖、总胆固醇浓度)、免疫指标[免疫球蛋白G(IgG)、免疫球蛋白M(IgM)水平]、屠宰性能(屠宰率、全净膛率和半净膛率)和免疫器官指数(肝脏指数、胸腺指数、脾脏指数、圆小囊指数、蚓突指数)。结果表明:与对照组比较,各试验组的初始重、终末重、平均日增重、平均日采食量和料重比均差异不显著(P>0.05),血清总蛋白、白蛋白、球蛋白、IgG水平,尿素氮、血清葡萄糖、血清胆固醇浓度差异不显著(P>0.05)。各试验组的血清IgM水平显著高于对照组(P0.05)。各试验组的肝脏指数、脾脏指数和圆小囊指数均高于对照组;试验Ⅲ组的肝脏指数显著高于对照组(P0.05)。说明日粮中添加青蒿对新西兰断奶肉兔的生长性能和屠宰性能影响不大,但能够提高血清IgM水平和部分免疫器官指数,在本试验条件下综合来看,添加6%青蒿粉的效果较好。

关键词：青蒿新西兰断奶肉兔生长性能屠宰性能免疫器官指数

乘积函数的双Hilbert变换和Bedrosian等式

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中国科学：数学 2018年第10期48卷 1253-1266页

作者：崔晓娜燕敦验河南师范大学数学与信息科学学院新乡453007 中国科学院大学数学科学学院北京100049

本文研究双Hilbert变换的性质,并对于f∈L^p(R^2), g∈L^q(R^2), p^(-1)+q^(-1)≤1,探讨在双Hilbert变换作用下Bedrosian等式H_2H_1(fg)=fH_2H_1g成立的充要条件,其中H_2H_1是双Hilbert变换.

关键词：双Hilbert变换 Bedrosian等式乘积函数