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Translating Surfaces of the Non-parametric Mean Curvature Flow in Lorentz Manifold M^(2)×R^(*)

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Chinese Annals of Mathematics,Series B 2021年第2期42卷 297-310页

作者： Li CHEN Dan-Dan HU Jing MAO ni xiang Faculty of Mathematics and Statistics Key Laboratory of Applied Mathematics of Hubei ProvinceHubei UniversityWuhan 430062China

In this paper, for the Lorentz manifold M^(2)× R with M^(2) a 2-dimensional complete surface with nonnegative Gaussian curvature, the authors investigate its spacelike graphs over compact, strictly convex domains in M^(2), which are evolving by the nonparametric mean curvature flow with prescribed contact angle boundary condition, and show that solutions converge to ones moving only by translation.

关键词： Translating surfaces Mean curvature flow Lorentz manifolds

Abundant Semigroups with a Quasi-ideal Quasi-adequate Transversal

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Acta Mathematica Sinica,English Series 2009年第10期25卷 1653-1664页

作者： xiang Fei ni Yan Feng LUO Hai Zhou CHAO Department of Mathematics Lanzhou University Lanzhou 730000 P. R. China Department of Mathematics LongQiao School of Lanzhou Commerical College Lanzhou 730000 P. R. China

Characterization theorems for abundant sernigroups having a quasi-ideal quasi-adequate transversal are obtained. Our results generalize and amplify the related results of Satio on regular semigroup obtained in 1985 and Kong obtained in 2007 respectively. Some recent results on this topic given by Guo-Shum are strengthened. In particular, the structure of such an abundant semigroup is described.

关键词： abundant semigroup quasi-ideal Q-transversal

Primary intestinal lymphangiectasia presenting as limb convulsions:A case report

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World Journal of Clinical Cases 2022年第18期10卷 6234-6240页

作者： Yun Cao Xiao-Hong Feng Hai-xiang ni Department of Endocrinology The First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Traditional Chinese Medicine)Hangzhou 310006Zhejiang ProvinceChina

BACKGROUND Primary intestinal lymphangiectasia(PIL)is a rare protein-losing enteropathy characterized by abnormally dilated lymphatic structures,resulting in leakage of lymph(rich in protein,lymphocytes,and fat)from the intestinal mucosal and submucosal layers and thus hypoproteinemia,lymphopenia,hypolipidemia,and pleural *** SUMMARY A 19-year-old Chinese male patient complained of recurrent limb convulsions for the last 1 *** investigations revealed low levels of calcium and magnesium along with hypoproteinemia and high parathyroid hormone levels,whereas gastroscopy exhibited chronic non-atrophic gastritis and duodenal lymphatic *** gastric biopsy showed moderate chronic inflammatory cell infiltration distributed around a small mucosal patch in the descending duodenum followed by lymphatic dilatation in the mucosal lamina propria,which was later diagnosed as *** following appropriate mediumchain triglycerides nutritional support significantly improved the patient’s *** Since several diseases mimic the clinical symptoms displayed by PIL,like limb convulsions,low calcium and magnesium,and loss of plasma proteins,it is imperative to conduct a detailed analysis to avoid any misdiagnosis while pinpointing the correct clinical diagnosis and simultaneously ruling out other clinical aspects in the reported cases without any past disease history.A careful assessment should always be made to ensure an accurate diagnosis in a timely manner so that the patient can be delivered quality health services for a positive health outcome.

关键词： Protein-losing enteropathy Primary intestinal lymphangiectasia Limb convulsions Adult Case report

Changes of adipocytokine expression after diabetic rats received sitagliptin and the molecular mechanism

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Asian Pacific Journal of Tropical Medicine 2016年第9期9卷 872-875页

作者： Qiao-Min Wu Hai-xiang ni Xiao Lu Endocrinology Department First Affiliated Hospital of Zhejiang Chinese Medical University Zhejiang Chinese Medical University

Objective:To study the effect of sitagliptin on adipocytokines expression in diabetic rats and its molecular ***:Male SD rats were chosen and randomly divided into NC group,T2DM group,SP group and SP+LY *** group received conventional breeding,T2DM group,SP group and SP+LY group received intraperitoneal injection of streptozotocin after 12 weeks of high-fat diet to establish diabetes animal model,SP group received sitagliptin intervention and SP+LY group received sitagliptin combined with PI3 K inhibitor LY294002 intervention.6 weeks after the intervention,serum was collected to determine the levels of biochemical indexes and adipocytokines,and visceral adipose tissue was collected to determine expression levels of ***:Serum TC,TG,LDL-C,FBG,FINS,Leptin and Chemerin levels as well as HOMA-IR of T2DM group were higher than those of NC group,and HDL-C,Adiponectin and Omentin-1 levels were significantly lower than those of NC group; serum TC,TG,LDL-C,FBG,FINS,Leptin and Chemerin levels as well as HOMA-IR of SP group were lower than those of T2DM group,and HDL-C,Adiponectin and Omentin-1 levels were significantly higher than those of T2DM group; Leptin and Chemerin levels in serum and visceral adipose tissue of SP+LY group were higher than those of SP group while Adiponectin and Omentin-1 levels were significantly lower than those of SP ***:Sitagliptin can regulate the expression of adipocytokines in adipose tissue of diabetic rats through PI3K-AKT pathway.

关键词： Diabetes mellitus Sitagliptin Adipocytokines Phosphatidylcholine 3-kinase

Large Solutions to Complex Monge-Ampère Equations: Existence, Uniqueness and Asymptotics

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Chinese Annals of Mathematics,Series B 2011年第4期32卷 569-580页

作者： ni xiang Xiaoping YANG Faculty of Mathematics and Computer Science Hubei University Wuhan 430000 China School of Science Nanjing University of Science and Technology Nanjing 210094 China

The authors consider the complex Monge-Ampere equation det（uij） = ψ（z, u, △↓u） in bounded strictly pseudoconvex domains Ω, subject to the singular boundary condition u =∞ on δΩ. Under suitable conditions on ψ, the existence, uniqueness and the exact asymptotic behavior of solutions Monge-Ampere equations are established to boundary blow-up problems for the complex

关键词： Complex Monge-Ampere equation Boundary blow-up Plurisubharmonic Pseudoconvex Asymptotics

Aggregation-induced emission luminogen-assisted stimulated emission depletion nanoscopy for super-resolution mitochondrial visualization in live cells

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Nano Research 2018年第11期11卷 6023-6033页

作者： Dongyu Li xiang ni Xiaoyan Zhang Liwei Liu Junle Qu Dan Ding Jun Qian State Key Laboratory of Modern Optical Instrumentation Centre for Optical and Electromagnetic Research Zhejiang Provincial Key Laboratory for Sensing Technologies Zhejiang University Hangzhou 310058 China State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Bioactive Materials Ministry of Education and College of Life Sciences Nankai University Tianjin 300071 China Key Laboratory of Optoelectrical Devices and Systems Ministry of Education Shenzhen University Shenzhen 518060 China Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy Cancer Institute Xuzhou Medical University Xuzhou 221004 China

Aggregation-induced emission luminogens (AIEgens) are fluorescent agents that are ideal for bioimaging and have been widely used for organelle targeting, cellular mapping, and tracing. Owing to their promising characteristics, AIEgen-based nanoparticles have recently been used for the stimulated emission depletion (STED) super-resolution imaging of fixed cells. In the present study, and for the first time, we used an AIEgen for dynamic STED nanoscopic imaging of a specific organelle in live cancer cells. TPA-T-CyP is a synthetic red&niR-emitting luminogen with AIE features that can spontaneously and specifically aggregate on mitochondria without the need for encapsulation or surface modification. The STED efficiency of aggregated TPA-T-CyP can reach more than 80%, and super-resolution imaging of TPA-T-CyP-stained mitochondria in live HeLa cells is possible, with a lateral spatial resolution of 74 nm. We found that TPA-T-CyP enabled the dynamic visualization of mitochondria, and the motion, fusion, and fission of mitochondria were clearly observable on a super-resolution scale. AIEgen-based super-resolution organelle visualization has great potential for many basic biomedical studies.

关键词： aggregation-induced emission stimulated emission depletion nanoscopy mitochondria dynamic visualization

Nerve coblation for treatment of trigeminal neuralgia: A case report

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World Journal of Clinical Cases 2019年第9期7卷 1060-1065页

作者： Xiao-Hui Yang Yan Li Li-Qiang Yang Bai-Shan Wu Jia-xiang ni Department of Pain Medicine Capital Medical University Xuanwu Hospital Department of Pain Medicine Aerospace Central Hospital National Clinical Research Center for Geriatric Disorders

BACKGROUND Trigeminal neuralgia(TN) is a severe type of neuropathic pain which is often inadequately managed using conventional therapies. In this report, we present the first case of TN treated with gasserian ganglion nerve coblation(NC).CASE SUMMARY A 58-year-old man presented with right facial pain, mostly localized in the right zygomatic zone, alveolar region, and jaws. Similar to acupuncture and shock pain, the pain lasted about five seconds after each attack before resolving unaided. A diagnosis of TN was made, after which treatment with acupuncture therapy and oral carbamazepine was given. However, the pain was not satisfactorily controlled. Subsequently, gasserian ganglion NC of the right trigeminal nerve guided by computed tomography(CT) was performed on the patient. Following this procedure, the right zygomatic, alveolar, submandibular,and cheek pain disappeared completely. The right zygomatic and alveolar areas experienced mild numbness(level II). At 1-, 2-, 3-, and 6-mo follow-ups after surgery, the patient was painless and the numbness score was level *** CT-guided gasserian ganglion(NC) is an effective treatment for TN and is associated with less or no postoperative numbness or hypoesthesia in comparison with current standard-of-care approaches.

关键词： Nerve coblation Trigeminal neuralgia Gasserian ganglion Computed tomography guided Case report

Atomic Simulation of Structure and Deformation＇s Influence on the Mechanical Properties of Single-walled Carbon Nanotubes

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Chinese Journal of Chemical Physics 2006年第4期19卷 294-300页

作者： xiang-gui ni Yu Wang Zhong Zhang Xiu-xi Wang CAS Key Laboratory of Mechanical Behavior and Design of Materials University of Science and Technology of China Hefei 230025 China

Tensile deformation behaviors and the Poisson＇s ratio of single-walled carbon nanotubes （SWCNTs） are numerically studied, using the molecular dynamics （MD） inethod. Effects of several structural features of crystal cells of SWCNTs, i.e., the size, chirality and strain, on their mechanical properties are analyzed systematically. The simulations indicate that Armchair SWCNTs （8, 8）-（22, 22） and Zigzag SWCNTs （9,0）- （29,0） can be stretched by 35%-38% and 20%-27% without sign of plasticity, respectively. The Young＇s modulus of SWCNTs under tension ranges from 960 GPa to 750 GPa as their radii increase. The Young＇s modulus of zigzag SWCNTs is higher than that of armchair SWCNTs. Additionally, three SWCNTs （9,9）, （12,6） and （16,0） are investigated to obtain their Poisson＇s ratio under tensile and compressive loading. The results show that the Poisson＇s ratio of nanotubes decreases generally as the strain increases. Under the same tensile strain, the Poisson＇s ratio decreases as the chiral angles of SWCNTs decrease, while their Polsson＇s ratios increase under the same compressive strain.

关键词： Single-walled carbon nanotube Chiral dependence Size dependence Strain dependence Poisson's ratio

一类非严格拟凸域上复Monge-Ampère方程弱解的存在性研究

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南京理工大学学报 2009年第6期33卷 806-808,813页

作者：向妮南京理工大学理学院江苏南京210094 湖北大学数学与计算机科学学院湖北武汉430062

为了研究拟凸域上复Monge-Ampère方程弱解的存在性,利用区域的边界性质构造下解。在下解蕴涵解的理论基础上得到了一类特殊的拟凸区域上弱解的存在性。研究结果表明下解的构造依赖于特殊区域的边界性质。

关键词：复Monge-Ampère方程多重下调和函数拟凸域存在性