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A case study on Landscape Component Niche based on Landscape Pattern Indices: Yanchi,Ningxia Province, China

Research in Cold and Arid Regions 2020年第1期12卷 22-33页

作者： XiaoNing Zhang XueLu liu Ghanney Philip xiaodan li QuanXi Wang YaNan Xu TingTing Hui College of Resources and Environmental Sciences Gansu Agricultural UniversityLanzhouGansu 730070China College of Management Gansu Agricultural UniversityLanzhouGansu 730070China

Yanchi County is located in the agro-pastoral ecotone and belongs to the ecologically fragile area of Northwest *** is important to study the evolution of landscape pattern to curb its environmental *** order to intuitively show how the landscape pattern of the study area changes over time,Landsat Thematic Mappers(TM)and Landsat Operational Land Imager(Oli)data of 1991,2000,2010 and 2017 were *** paper attempts to apply niche theories and methods into landscape ecology,and constructs a niche model of landscape components by using"n-dimentional hypervolume niche theory"and landscape pattern *** evaluating the spatial and temporal evolution of niche from the perspective of two-dimensional space to reflect the changes of landscape pattern in the study area over the past 26 years,new theories and methods were introduced for the characterization of landscape *** results indicate that:1)The larger the attribute and dominance value of landscape components,the higher the ecological niche and the stronger the control effect on the overall landscape.2)The ecological niche of each landscape component was significantly different,just as its control effect on the overall landscape.3)The dynamic change of the ecological niche of each landscape component was different,with grassland,unused land and arable land always in a high dominant position,although the ecological niche of construction land and water area was always *** general,the introduction of niche theory into the landscape ecology provided a new method to study the changes in regional landscape pattern.

关键词： landscape pattern landscape component niche landscape stability landscape dominance

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Reviving “Old Cities”

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China's Foreign Trade 2014年第1期 48-49页

作者： li xiaodan

The generation of 1980s,and their younger relatives and friends,all have pieces of memories of lanes and alley-ways,let alone people of older *** living in a city,I was familiar with lanes and alleyways,as I used to play along the lanes where my grandpa and grandma *** that time,the lane was centre of the city,and along the winding alley I could buy hawthorn cake and ice cream,pass by stuffed-bun houses,or meet neighbors making sugar figures,selling

关键词： familiar cream winding younger genera friends Old

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Construction of self-sensitized liErF4:0.5%Tm^3+@liYF4 upconversion nanoprobe for trace water sensing

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Nano Research 2020年第10期13卷 2803-2811页

作者： ling Zhang xiaodan li Wang Wang Xu Zhao Xu Yan Chenguang Wang Haoqiang Bao Yang Lu Xianggui Kong Fengmin liu Xiaomin liu Geyu Lu State Key Laboratory of Integrated Optoelectronics hilin Key Laboratory of Advanced Gas SensorsCollege of Electronic Science and EngineeringJjilin UniversityChangchun 130012China Department of Respiratory Medicine The First Hospitaljilin UniversityChangchun 130021China State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PlhysicsChinese Academy of ScienceChangchun 130033China

liErF4 was commonly used as a dipolar-coupled antiferromagnet,and was rarely considered as a luminescent ***,we achieved the strong red upconversion emission of liErF4 simply by an inert shell coating,i.e.,liErF4@*** to the unique and intrinsic ladder-like energy levels of Er3+ions,this liErF4 core–shell nanostructures present red emission(~650 nm)under multi-band excitation in the near-infrared(NIR)region(~808,~980,and^1,530 nm).A brighter and monochromic red emission can be further obtained via doping 0.5%Tm3+into the liErF4 core,i.e.,liErF4:0.5%Tm3+@*** enriched Er3+ions and strong monochromic red emission natures make liErF4:0.5%Tm3+@liYF4 nanocrystals very sensitive for trace water probing in organic solvents with detection limit of 30 ppm in acetonitrile,50 ppm in dimethyl sulfoxide(DMSO),and 58 ppm in N,N-dimethylformamide(DMF)under excitation of 808 *** to their superior chemical and physical stability,these nanoprobes exhibit excellent antijamming ability and recyclability,offering them suitable for real-time and long-term water monitoring.

关键词： liErF4 water detection upconversion emission sensor self-sensitized

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Atomization Inhalation of Terbutaline and Budesonide Efficiently Improved Immunity and Lung Function of AECOPD Patients

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Cellular & Molecular Immunology 2008年第4期5卷 287-291页

作者： Guilan Xiong lijun Xu liu Wei xiaodan li Department of Respiratory Medicine The First Hospital of Jilin UniversityChangchun 130021 China

Chronic obstructive pulmonary disease （COPD） is a syndrome of chronic progressive airflow limitation as a result of chronic inflammation of the airways and lung parenchyma. COPD patients always have airway hyperreactivity （AHR）, so how to reduce AHR becomes the key purpose of clinical treatment. It is hypothesized that combined inhalation of corticosteroids and β2-agonists can reduce the AHR in COPD. In this study, atomization inhalation of budesonide and terbutaline plus conventional therapies was applied to treat AECOPD （acute exacerbation of chronic obstructive pulmonary disease） patients for two weeks. The results showed that additional inhalation of budesonide and terbutaline could upregulate serum IL-2 levels, the percentages of CD3^＋ T and CD4^＋ T cells, and CD4/CD8 ratio, and decrease eosinophils and serum CRP level more efficiently than conventional treatment in patients with AECOPD. And the lung function of the atomization inhalation group was improved more obviously after the treatment compared with the conventional treatment group. Thus, atomization inhalation of terbutaline and budesonide can control AECOPD effectively, and has wide clinical perspective in controlling and preventing the exacerbation of COPD. Cellular ＆ Molecular Immunology. 2008;5（4）：287-291.

关键词： AECOPD T lymphocyte subset IL-2 eosinophil C-reactive protein

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Anti-oxidant effect of picroside II in a rat model of cerebral ischemia/reperfusion injury

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Neural Regeneration Research 2011年第15期6卷 1141-1146页

作者： li Sun xiaodan li ling Wang lihua Qin Yunliang Guo Zhen Zhou Department of Neurology Second Affiliated Hospital of Qingdao University Medical College Qingdao 266043 Shandong Province China Institute of Cerebrovascular Diseases Qingdao University Medical College Qingdao 266021 Shandong Province China Department of Anatomy and Histoembryology Peking University Health Science Center Beijing 100191 China

Picroside II,the major active component of picroside,has been shown to induce PC12 cell axonal growth and relieve free radical *** vivo experiments have demonstrated that picroside II can improve neurological function in rats with cerebral ischemia/reperfusion *** the present in vivo study,enzyme-linked immunosorbent assay and immunohistochemistry revealed that picroside II increased superoxide dismutase content and reduced inducible nitric oxide synthase content in the ischemic *** effects of picroside II were similar to those of salvianic acid A sodium,an active control *** results indicate that picroside II exerts a neuroprotective effect,possibly by downregulating inducible nitric oxide synthase expression,increasing superoxide dismutase activity,and inhibiting neuronal apoptosis.

关键词： picroside II salvianic acid A sodium brain ischemia reperfusion injury apoptosis inducible nitric oxide synthase superoxide dismutase neural regeneration

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Ultrahigh “Relative Energy Density” and Mass Loading of Carbon Cloth Anodes for K-Ion Batteries

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CCS Chemistry 2021年第2期3卷 791-799页

作者： Junpeng Xie Jinliang li xiaodan li Hang Lei Wenchen Zhuo Xibo li Guo Hong Kwun Nam Hui likun Pan Wenjie Mai Siyuan Laboratory Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New MaterialsDepartment of PhysicsJinan UniversityGuangzhou 510632 Institute of Applied Physics and Materials Engineering(IAPME) University of Macao.Department of Physics and ChemistryFaculty of Science and TechnologyUniversity of MacaoMacao SAR 999078 Department of Chemistry Jinan UniversityGuangzhou 510632 Shanghai Key Laboratory of Magnetic Resonance School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200062

Mass loading and potential plateau are the two most important issues of potassium(K)-ion batteries(KIBs),but they have long been ignored in previous ***,we report a simple and scalable method to fabricate acidized carbon clothes(A-CC)as high mass loading(13.1 mg cm−2)anode for KIBs,which achieved a reversible areal-specific capacity of 1.81 mAh cm−2 at 0.2 mA cm−***,we have proposed the concept of“relative energy density”to reasonably evaluate the electrochemical performance of the *** to our calculation method,the A-CC electrode exhibited an ultrahigh relative energy density of 46 Wh m−2 in the initial charge process and remained at 40 Wh m−2 after 50 ***,we performed the operando Raman spectroscopy(ORS)to investigate the K-ion storage *** believe that our work might provide a new guideline for the evaluation of anode performance,thereby,opening an avenue for the development of commercial anode.

关键词： acidized carbon clothes relative energy density high mass loading operando Raman spectra,K-ion batteries

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Picroside Ⅱ down-regulates matrix metalloproteinase-9 expression following cerebral ischemia/reperfusion injury in rats

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Neural Regeneration Research 2010年第18期5卷 1403-1407页

作者： Xiang li Xinying Xu Zhen li Yunliang Guo Qin li xiaodan li Zhen Zhou Department of Ultrasound Affiliated Hospital of Qingdao University Medical College Qingdao 266003 Shandong Province China Institute of Cerebrovascular Disease Qingdao University Medical College Qingdao 266003 Shandong Province China Yuhuangding Hospital Qingdao University Medical College Qingdao 266003 Shandong Province China Experimental Center of Surgery Qingdao University Medical College Qingdao 266003 Shandong Province China

Studies have shown that Picroside Ⅱ attenuates inflammatory reactions following brain ischemia through the inhibition of the TLR-4-NF-KB signal transduction pathway, and ameliorates cerebral edema through the reduction of aquaporin-4 expression. Matrix metalloproteinase-9 （MMP-9）, located downstream of the TLR-4-NF-KB signal transduction pathway, can degrade the neurovascular matrix, damage the blood-brain barrier to induce cerebral edema, and directly result in neuronal apoptosis and brain injury, Therefore, the present study further observed MMP-9 expression in the brain tissues of rats with cerebral ischemia/reperfusion injury following Picroside Ⅱ treatment. Results demonstrated that Picroside Ⅱ significantly reduced MMP-9 expression in ischemic brain tissues, as well as neuronal apoptosis and brain infarct volume, suggesting Picroside Ⅱ exhibits neuroprotection by down-regulating MMP-9 expression and inhibiting cell apoptosis.

关键词： Picroside Ⅱ cerebral ischemia/reperfusion injury apoptosis matrix metalloproteinase-9 rats neural regeneration

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The College Video English Visual-audio-oral Learning System

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教育研究前沿（中英文版） 2019年第3期9卷 183-188页

作者： Jianghui liu Hongting Wang xiaodan li Education Technology Center Experimental Teaching CenterGuangdong University of Foreign StudiesGuangzhou 510006China School of Business Guangdong University of Foreign StudiesGuangzhou 510006China School of English Education Guangdong University of Foreign StudiesGuangzhou 510006China

In order to respond to the need of social development,cultivate international talents,and improve the current English teaching mode,this paper studies video English visual-audio-oral learning system based on machine learning from the perspective of teaching and learning video *** mainly analyzes the knowledge discovery process of machine learning,the design and application of video English visual-audio-oral learning *** is found that the video English visual-audio-oral learning system based on machine learning has much higher level of practicality and efficiency compared with the traditional English language teaching in real *** application of this system can also be of great significance in changes on language learning modes and methods in the future.

关键词： Video English Visual-audio-oral Learning Machine Learning Learning System

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A novel nomogram for predicting mortality in patients with stroke: a survival analysis based on the MIMIC-Ⅲ clinical database

A novel nomogram for predicting mortality in patients with s...

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2021年中国肿瘤标志物学术大会暨第十五届肿瘤标志物青年科学家论坛

作者： xiaodan li Minmin li Guangzhou Overseas Chinese Hospital

Background: Stroke is a procedure of sudden cerebral ischemia, which is the second largest cause of death around the world. We aim to develop and validate a nomogram for predicting the overall survival of patients, suffering from stroke, during the initial 24 hours fllowing ***: All data utilized in this study were obtained from the MIMIC-Ⅲ(Medical Information Mart for Intensive Care Ⅲ) database. Based on the multivariate Cox regression, the data were analyzed and then the performance of the novel nomogram that assessed the 30-day, 180-day, and 360-day allcause mortality rates for stroke patients were evaluated, using Harrell’s concordance index(C-index) and the area under the receiver operating characteristic curve(AUC). Calibration curve and decision curve(DCA), meanwhile, were introduced to test the clinical value and effectiveness of our prediction ***: A total of 767 patients with stroke were randomly split into a derivation(n=536) and validation(n=231) cohort at a ratio of 7:3. Multivariate Cox regression showed that eleven independent predictors including age, weight, ventilation, cardiac arrythmia, cancer, OASIS score, DiasBP,bicarbonate, chloride, red blood cells and white blood cells palyed an important role in the surval of stroke patients. The predicted values were compared using C-indexes, calibration plots and ***: The proposed nomogram performed favourable predictive accuracy for stroke, which were provided with the potential to contribute to clinical decision-making and treatment, as well as providing consultation services for patients.

关键词： stroke,nomogram MIMIC-Ⅲ database Mortality rate

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A novel nomogram to predict mortality in patients with stroke: a survival analysis based on the MIMIC-Ⅲ clinical database

A novel nomogram to predict mortality in patients with strok...

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2021年中国肿瘤标志物学术大会暨第十五届肿瘤标志物青年科学家论坛

作者： xiaodan li Minmin li The First Affiliated Hospital of Jinan University

Background: Stroke is a procedure of sudden cerebral ischemia, which is the second largest cause of death around the world. We aim to develop and validate a nomogram model to predict the mortality in ICU patients, suffering from ***: All data involved in this study was extracted from the Medical Information Mart for Intensive Care Ⅲ database(MIMIC-Ⅲ). Based on the multivariate Cox regression, the data was analyzed and then the performance of the novel nomogram that assessed the patient’s overall survival at 30, 180,and 360 days after a stroke was evaluated, using Harrell’s concordance index(C-index) and the area under the receiver operating characteristic curve(AUC). Calibration curve and decision curve(DCA),meanwhile, were introduced to test the clinical value and effectiveness of our prediction ***: A total of 767 patients with stroke were randomly split into a derivation(n=536) and validation(n=231) cohort at a 7:3 ratio. Multivariate Cox regression showed that eleven independent predictors including age, weight, ventilation, cardiac arrythmia, cancer, OASIS score, DiasBP, bicarbonate,chloride, RBC and WBC played a significant role in the survival of stroke individuals. The nomogram model was validated basing on C-indexes, calibration plots and ***: The plotted nomogram performed a quite accurate ability of predicting the stroke ending,which were equipped with the potential contributing to clinical decision-making and treatment, as well as providing consultation services for patients.

关键词： stroke nomogram MIMIC-Ⅲ mortality

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