检索结果-南通市图书馆

Primary squamous cell carcinoma with sarcomatoid differentiation of the kidney associated with ureteral stone obstruction: A case report

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2022年第32期10卷 11942-11948页

作者： Xue-Hua Liu Qian-Ming Zou jia-dong cao Zhi-Chao Wang Department of Urology Surgery Fangcun Hospital of Guangdong Provincial Hospital of traditional Chinese MedicineGuangzhou 510120Guangdong ProvinceChina

BACKGROUND Primary squamous cell carcinoma(SCC)with sarcomatoid differentiation of the kidney was rarely *** disease is usually related to renal stones,and due to a lack of symptoms and radiological features,patients usually attend the hospital with late stage *** SUMMARY A 54-years-old female presented with left flank pain and an abdominal mass for 6 *** studies revealed that the left kidney was enlarged and massive hydronephrosis was present.A stone was seen in the ureteropelvic *** patient subsequently underwent left radical nephrectomy,and histopathological examination of the mass revealed a poorly differentiated renal SCC with sarcomatoid *** primary surgery,the patient received four cycles of *** months later,the patient developed adrenal,lymph,and uterine appendage *** SCC of the kidney has a poor prognosis,and should be considered in patients with a renal mass,long-standing urinary calculi and massive hydronephrosis.

关键词： Squamous cell carcinoma Sarcomatoid differentiation Kidney Ureteral stone Case report

Mitophagy in acute central nervous system injuries:regulatory mechanisms and therapeutic potentials

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第9期20卷 2437-2453页

作者： Siyi Xu Junqiu jia Rui Mao Xiang cao Yun Xu Department of Neurology Nanjing Drum Tower HospitalClinical College of Jiangsu UniversityNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalChinese Academy of Medical Science&Peking Union Medical CollegeNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases Nanjing UniversityNanjingJiangsu ProvinceChina jiangsu Key Laboratory for Molecular Medicine Medical School of Nanjing UniversityNanjingJiangsu ProvinceChina Nanjing Neurology Medical Center NanjingJiangsu ProvinceChina

Acute central nervous system injuries,including ischemic stro ke,intracerebral hemorrhage,subarachnoid hemorrhage,traumatic brain injury,and spinal co rd injury,are a major global health *** optimal therapies and improving the long-term neurological functions of patients with acute central nervous system injuries are urgent *** are susceptible to damage after acute central nervous system injury,and this leads to the release of toxic levels of reactive oxygen species,which induce cell ***,a selective form of autophagy,is crucial in eliminating redundant or damaged mitochondria during these *** evidence has highlighted the significant role of mitophagy in acute central nervous system *** this review,we provide a comprehensive overview of the process,classification,and related mechanisms of *** also highlight the recent developments in research into the role of mitophagy in various acute central nervous system injuries and drug therapies that regulate *** the final section of this review,we emphasize the potential for treating these disorders by focusing on mitophagy and suggest future research paths in this area.

关键词： autophagy intracerebral hemorrhage ischemic stroke mitochondria mitochondrial biogenesis mitochondrial quality control mitophagy spinal cord injury subarachnoid hemorrhage traumatic brain injury

基于自适应格网数字水深模型的水下地形匹配定位算法

在线全文

学校读者我要写书评

暂无评论

中国惯性技术学报 2017年第4期25卷 488-494页

作者：刘现鹏张立华贾帅东曹鸿博海军大连舰艇学院海洋测绘系大连116018 海军大连舰艇学院海洋测绘工程军队重点实验室大连116018

为了解决当前的水下地形匹配定位算法未考虑格网大小随海底地形变化而自动调整的问题,提出了一种基于自适应格网数字水深模型的水下地形匹配定位算法。首先,引入基于四叉树的自适应格网模型,改进其局部格网的相似性评估指标与构网约束方... 详细信息

为了解决当前的水下地形匹配定位算法未考虑格网大小随海底地形变化而自动调整的问题,提出了一种基于自适应格网数字水深模型的水下地形匹配定位算法。首先,引入基于四叉树的自适应格网模型,改进其局部格网的相似性评估指标与构网约束方法;然后,设计匹配区的确定及待匹配航迹的选取策略,给出待匹配航迹的水深值的计算方法,构建出目标匹配定位的地形相关组合算子。实验结果表明:提出的算法相比于基于等距离的规则格网模型的算法有以下优势:1)在地形特征丰富区域的定位精度明显提高;2)可以避免出现地形特征越明显匹配定位精度越低的情况;3)能一定程度地克服水深系统误差对定位精度的影响。

关键词：自适应网格数字水深模型地形相关水下匹配

Viscosity and structure relationship with equimolar substitution of cao with MgO in the cao–MgO–Al_(2)O_(3)–SiO_(2)slag melts

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 70-79页

作者： Yong Hou Shuo Zhang Jie Dang jia Guo Hanghang Zhou Xuewei Lü College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials Chongqing UniversityChongqing 400044China

Currently,the Al_(2)O_(3)content in the high-alumina slag systems within blast furnaces is generally limited to 16wt%–18.5wt%,making it challenging to overcome this *** most studies that concentrated on managing the MgO/Al_(2)O_(3)ratio or basicity,this paper explored the effect of equimolar substitution of MgO for cao on the viscosity and structure of a high-alumina cao-MgO-Al_(2)O_(3)-SiO_(2)slag system,providing theoretical guidance and data to facilitate the application of high-alumina *** results revealed that the viscosity first decreased and then increased with higher MgO substitution,reaching a minimum at 15mol%MgO *** transform infrared spectroscopy(FTIR)results found that the depths of the troughs representing[SiO_(4)]tetrahedra,[AlO_(4)]tetrahedra,and Si-O-Al bending became progressively deeper with increased MgO *** of the Raman spectra showed that the average number of bridging oxygens per Si atom and the X_(Q^(3))/X_(Q^(2))(X_(Q^(i))is the molar fraction of Q^(i) unit,and i is the number of bridging oxygens in a[SiO_(4)]tetrahedral unit)ratio increased from 2.30 and 1.02 to 2.52 and 2.14,respectively,indicating a progressive polymerization of the silicate structure.X-ray photoelectron spectroscopy(XPS)results highlighted that non-bridging oxygen content decreased from 77.97mol% to 63.41mol% with increasing MgO concentration,whereas bridging oxygen and free oxygen contents *** analysis demonstrated a gradual increase in the polymerization degree of the tetrahedral structure with the increase in MgO ***,bond strength is another important factor affecting the slag *** occurrence of a viscosity minimum can be attributed to the complex evolution of bond strengths of non-bridging oxygens generated during depolymerization of the[SiO_(4)]and[AlO_(4)]tetrahedral structures by cao and MgO.

关键词： aluminosilicate viscosity structure spectroscopy

Optimizing the key parameter to accelerate the recovery of AMOC under a rapid increase of greenhouse gas forcing

在线全文

学校读者我要写书评

暂无评论

Atmospheric and Oceanic Science Letters 2025年第1期18卷 39-45页

作者： Haolan Ren Fei Zheng Tingwei cao Qiang Wang International Center for Climate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina College of Oceanography Hohai UniversityNanjingChina CAS Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of Sciences and Pilot National Laboratory for Marine Science and Technology(Qingdao)QingdaoChina

Atlantic Meridional Overturning Circulation(AMOC)plays a central role in long-term climate variations through its heat and freshwater transports,which can collapse under a rapid increase of greenhouse gas forcing in climate *** studies have suggested that the deviation of model parameters is one of the major factors in inducing inaccurate AMOC *** this work,with a low-resolution earth system model,the authors try to explore whether a reasonable adjustment of the key model parameter can help to re-establish the AMOC after its *** a new optimization strategy,the extra freshwater flux(FWF)parameter is determined to be the dominant one affecting the AMOC’s *** traditional ensemble optimal interpolation(EnOI)data assimilation and new machine learning methods are adopted to optimize the FWF parameter in an abrupt 4×CO_(2) forcing experiment to improve the adaptability of model parameters and accelerate the recovery of *** results show that,under an abrupt 4×CO_(2) forcing in millennial simulations,the AMOC will first collapse and then re-establish by the default FWF parameter ***,during the parameter adjustment process,the saltier and colder sea water over the North Atlantic region are the dominant factors in usefully improving the adaptability of the FWF parameter and accelerating the recovery of AMOC,according to their physical relationship with FWF on the interdecadal timescale.

关键词： Recovery of AMOC 4×CO_(2)forcing Key parameter Parameter estimation Data assimilation Machine learning

Unraveling post-growth mechanisms of monolayer CsPbBr3 nanocubes:Laser-enhanced transformations and cathodoluminescence-electron microscopy correlations

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 146-156页

作者： Mingxing Li Xiaoge Wang Xiaofan cao Zhiqun He Chunjun Liang Mingxing Chen Jing Ju Fangtian You Key Laboratory of Luminescence and Optical Information Ministry of Education Institute of Optoelectronic Technology Beijing Jiaotong University Beijing National Laboratory for Molecular Sciences (BNLMS) College of Chemistry and Molecular Engineering Peking University

Lead-halide perovskite nanoparticles（LHP NPs） are highly promising materials for next-generation displays and solid-state lighting due to their exceptional optical properties. However, their inherent instability presents a significant challenge. Recent advances have demonstrated that optoelectronic devices based on monolayer nanoparticle films exhibit both high luminescence efficiency and long-term *** research demonstrates that mobility limitations and anisotropic alignments in CsPbBr3nanocube monolayer films are key to their stabilization, hindering spontaneous growth through face-to-face fusion and resulting in the formation of connecting necks in a diagonal direction. Introducing laser irradiation confirmed this by significantly accelerating nanocubes growth, increasing mobility, and enhancing local structural ordering, leading to larger and more regularly shaped nanosheets. Fourier transform infrared spectroscopy and energy dispersive spectroscopy line-scan analyses indicated that laser irradiation did not disrupt the ligand structure. Transmission electron microscopy and correlative cathodoluminescence electron microscopy revealed the effects of post-growth and heterogeneous structures, including enhanced luminescence and inhomogeneous intensity in the nanosheets. These findings deepen the understanding of the post-growth mechanism of monolayer nanoparticles and the structure-emission correlation and highlight the unique role of laser irradiation in directing the formation of well-defined and regular nanostructures.

关键词： Post-growth mechanism Heterogeneous structure Single-particle spectroscopy Laser irradiation

国内经皮肾镜取石术后发生全身炎症反应综合征相关因素的Meta分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国内镜杂志 2017年第9期23卷 11-19页

作者：翁湘涛曹家栋何君伟王树声向松涛古炽明甘澍广州中医药大学广东广州510403 广东省中医院泌尿外科广东广州510120

目的探讨国内经皮肾镜取石术(PCNL)后发生全身炎症反应综合征(SIRS)的危险因素。方法计算机检索国内有关PCNL术后发生SIRS的相关研究,时间截止至2016年10月,采用Rev Man5.3进行Meta分析。结果共纳入18个研究,5 323例患者,Meta分析结果显... 详细信息

目的探讨国内经皮肾镜取石术(PCNL)后发生全身炎症反应综合征(SIRS)的危险因素。方法计算机检索国内有关PCNL术后发生SIRS的相关研究,时间截止至2016年10月,采用Rev Man5.3进行Meta分析。结果共纳入18个研究,5 323例患者,Meta分析结果显示:(1)单因素分析结果 :肾功能不全[OR=2.78,95%CI(1.96,3.95),P=0.000]、术前尿培养细菌阳性[OR=3.41,95%CI(1.89,6.15),P=0.000]、术前尿常规白细胞异常[OR=3.78,95%CI(3.02,4.72),P=0.000]、糖尿病[OR=2.14,95%CI(1.33,3.45),P=0.002]、结石细菌培养阳性[OR=5.14,95%CI(2.46,10.73),P=0.000]和手术时间≥120 min[OR=2.31,95%CI(1.40,3.82),P=0.001]是PCNL术后发生SIRS的危险因素;(2)多因素分析显示:术前尿培养细菌阳性[OR=6.83,95%CI(2.82,16.57),P=0.000]、术前尿常规白细胞异常[OR=5.43,95%CI(3.51,8.41),P=0.000]、糖尿病[OR=2.85,95%CI(1.45,5.58),P=0.002]、结石细菌培养阳性[OR=4.30,95%CI(1.30,14.21),P=0.020]和手术时间≥120 min[OR=2.72,95%CI(1.62,4.59),P=0.000]是PCNL术后发生SIRS的独立危险因素。结论糖尿病、术前尿培养细菌阳性、术前尿常规白细胞异常、结石细菌培养阳性和手术时间是PCNL术后发生SIRS的独立危险因素,受纳入研究数量和质量影响,需开展更多高质量研究证实上述结论。

关键词：经皮肾镜取石术(PCNL) 全身炎症反应综合征(SIRS) Meta分析

Consistency Research of Negative Electrode Pasting for MH/Ni High Power Battery

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2004年第z1期22卷 342-343页

作者： Zhang Zhong Liu dong cao Shengbiao Li jianping jia Chunming Inner Mongolia Rare Earth Ovonic High-Power MH/Ni Battery Co. Ltd.Baotou 014030 China Inner Mongolia Rare Earth Ovonic High-Power MH/Ni Battery Co.Ltd.Baotou 014030 China Inner Mongolia Rare Earth Ovonic High-Power MH/Ni Battery Co.Ltd.Baotou 014030 China Inner Mongolia Rare Earth Ovonic High-Power MH/Ni Battery Co.Ltd.Baotou 014030 China Inner Mongolia Rare Earth Ovonic High-Power MH/Ni Battery Co.Ltd.Baotou 014030 China

It is discovered that the consistency of negative electrode is one of the main influences on battery performance, since the main raw material in negative electrode is metal hydride powder, ingredients, particle distribution and density of the powder could influence the pasting consistency in some *** the study of MH powder characteristics, through the modification of the coating die, the consistency of negative electrode is improved efficiently.

关键词： nickel metal hydride battery consistency metal hydride powder

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

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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： Metal hydride Ni catalysts Carbonate Metal-carbonate interface