检索结果-南通市图书馆

Homophily Exclusion or Homophily Preference? The Influence of the Executive Identity of Nonexecutive Directors on the Focal Firm Executive Pay and Ordinary Employee Pay

引用

Journal of Systems Science and Information 2019年第6期10卷 550-567页

作者： shuai fang Guanghua School of Management Peking UniversityBeijing 100871China

The occupational identity of nonexecutive directors exerts a considerable influence on their way of designing and distributing executive pay as well as ordinary employee pay in the focal *** the status characteristics theory into the corporate governance literature,I theorize that status contest effect comes into play in the process of setting executive pay in the focal firm,specifically when its nonexecutive directors serve as executives on *** often than not,such executive identity triggers the status competition with focal firm executives,which motivates nonexecutive directors to reduce the focal firm executive pay so as to secure and aggrandize their own status within the focal ***,since ordinary employees pose no threat to nonexecutive directors in the focal firm,they tend to increase ordinary employee *** upon the empirical test which adopts the data of China’s Shanghai and Shenzhen A-share listed firms,I find that the greater the focal firm’s nonexecutive director ratio,the less will be the top executives’pay in the focal firm;the greater the focal firm’s nonexecutive director ratio,the greater will be ordinary employees’pay in the focal firm;the greater the focal firm’s nonexecutive director ratio,the smaller will be the pay gap between top executives and ordinary employees in the focal *** addition,I also find that ownership power and gender can moderate the relationship between nonexecutive director ratio and executive pay:top executive ownership can alleviate the negative relationship between focal firm’s nonexecutive directors and top executives’pay;female nonexecutive directors are more likely to increase focal firm’s ordinary employee pay than their male counterparts.

关键词： nonexecutive director status contest executive pay ordinary employee pay

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Epithelial-mesenchymal transition-related circular RNAs in lung carcinoma

引用

Cancer Biology & Medicine 2021年第2期18卷 411-420页

作者： Meina Jiang shuai fang Xiaodong Zhao Chengwei Zhou Zhaohui Gong Department of Biochemistry and Molecular Biology Ningbo University School of MedicineNingbo 315211China Zhejiang Province Key Laboratory of Pathophysiology Ningbo University School of MedicineNingbo 315211China Department of Thoracic Surgery The Affiliated Hospital of Ningbo University School of MedicineNingbo 315020China

The epithelial-mesenchymal transition(EMT)is a highly complex phenotypic conversion during embryogenesis,and is important for metastasis,which contributes to tumor deterioration and poor prognoses of cancer *** carcinoma has a high tendency to develop the *** RNAs(circ RNAs)are involved in EMT-related cell invasion and metastasis in various types of ***,circ RNAs have been found to be a link to EMT-related transcription factors and EMT-associated signaling *** review mainly focuses on the influence of EMT-related circ RNAs on lung *** specifically,the roles of EMT-inducingand EMT-suppressive circ RNAs in lung carcinomas are *** circ RNAs potentially becoming promising biomarkers and therapeutic targets for cancer managements,they will hopefully stimulate the interest of medical workers in the early diagnosis,personalized treatment,and positive prognoses in the era of precision oncology.

关键词： Epithelial-mesenchymal transition circular RNA transcription factor metastasis lung carcinoma

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Enrichment and reconfiguration of titanium-bearing phase in vortex smelting reduction process of vanadium-titanium magnetite

引用

Journal of Iron and Steel Research International 2024年第7期31卷 1582-1589页

作者： Yong-chao Han Zhi-he Dou Rui Zhang Ting-an Zhang shuai fang Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Shenyang 110819LiaoningChina School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

To comprehensively utilize the low-iron high-vanadium-titanium magnetite,a new method of vortex smelting reduction of vanadium-titanium magnetite was proposed,and the enrichment and reconstitution regularity of Ti-bearing phases in the slag was investigated through X-ray fluorescence spectrometry,X-ray photoelectron spectroscopy,X-ray diffraction analysis,and optical *** phase diagram revealed that the preferential crystallization of MgTi_(2)O_(5) can be achieved by adjusting the CaO,MgO,and TiO_(2) contents of *** predominant Ti-bearing phases in the slag obtained from the reduction process are MgxTi_(3_x)O_(5)(0≤x≤1)and CaTiO_(3).FeTiO_(3) is present at carbon-iron ratio(CR)=1.3,while MgTi_(2)O4 and TiC are formed at CR=*** enrichment of TiO_(2) in the slag increases first and then decreases as the CR increases,and at CR=1.1,the enrichment of TiO_(2) in the slag reaches 51.3 wt.%.Additionally,the concentrations of MgxTi_(3_x)O_(5)(0≤x≤1)and CaTiO_(3) in the slag,along with the grain width of MgxTi_(3_x)O_(5)(0≤x≤1),decrease with the increase in CR.

关键词： Vanadium-titanium magnetite Vortex smelting reduction Phase reconfiguration TiO_(2)enrichment

来源：

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

Segmentation Methods for Noise Level Estimation and Adaptive Denoising from a Single Image

Segmentation Methods for Noise Level Estimation and Adaptive...

引用

第25届中国控制与决策会议

作者： shuai fang Qiang Shi Yang Cao Hefei University of Technology University of Science and Technology of China

ISBN: (纸本)9781467355322

In order to significantly remove noise, many computer vision algorithms require that the image noise level is known. In this paper, we present two simple but effective methods to automatically estimate the noise level from a single image using improved adaptive graph-based segmentation. The first method can estimate the noise standard deviation of image contaminated by Gaussian noise or natural noise. The second method is based on point-wise estimation of the image noise. Both of them can be applied to attenuate real noise produced by CCD camera, even if the noise is inhomogeneous. The main advantage of our algorithms compared with others is its speed: its complexity is a linear function of the number of the image pixels. This speed allows noise level estimation to be applied in real-time system. At last, we illustrate the utility of the noise estimation for constant time bilateral filter. Meanwhile, experimental results demonstrate the effectiveness of our algorithms.

关键词： Noise Estimation Image Segmentation Inhomogeneous Noise and Adaptive Denoising

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Protection of Carassius auratus Gibelio against infection by Aeromonas hydrophila using specific immunoglobulins from hen egg yolk

引用

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2006年第11期7卷 922-928页

作者： LI Xiao-liang shuai Jiang-bing fang Wei-huan Institute of Preventive Veterinary Medicine and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine Zhejiang University Hangzhou 310029 China

Specific immunoglobulin (IgY) from egg yolk against Aeromonas hydrophila was produced by immunization of White Leghorn hens with formalin-killed whole cells of A. hydrophila. ELISA test using A. hydrophila as the coating antigen revealed that the specific antibody titer started to increase in the egg yolk at the 13th day post-immunization (P/N=2.18), reached the peak at the 56th day (P/N=13.82), and remained at high level until day 133 (P/N=7.03). The antibody was purified by saturated ammonium sulphate with a recovery rate of 63.5%. The specific IgY inhibited the growth of A. hydrophila at a concentration of 1.0 mg/ml during the 18 h incubation. Pre-treatment of polyploid gibel carps Carassius auratus Gibelio with specific IgY had a protection rate of 60% (6/10) against challenge with A. hydrophila, while none of the fishes in the control groups receiving sterile phosphate buffered saline (PBS) or non-specific IgY survived the challenge. Treatment of fishes with the specific IgY 4 h after the challenge also had lower mortality (70%, 7/10), a 30% reduction against the control PBS or non-specific IgY groups (10/10). These results indicate that specific IgY antibodies could be obtained easily from hens immunized with an inactivated A. hydrophila and could provide a novel alternative approach to control of diseases in fishes caused by this organism.

关键词： Aeromonas hydrophila Immunoglobulins Hen egg yolk Polyploid gibel carps Carassius auratus Gibelio

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of gravel content on the detachment of colluvial deposits in Benggang

引用

Journal of Mountain Science 2022年第11期19卷 3088-3104页

作者： ZHANG Li-ting shuai fang CHEN Li-bo HUANG Yan-he LIN Jin-shi ZHANG Yue GE Hong-li JIANG fang-shi Jinshan Soil and Water Conservation Research Center Fujian Agriculture and Forestry UniversityFuzhou 350002China

Accurately calculating detachment capacity is the most fundamental issue when establishing a soil erosion process *** deposits of Benggang are typical soil-gravel mixtures,whereas the understanding of the soil detachment of colluvial deposits is *** work investigated the effects of the gravel contents on the soil detachment capacity of colluvial deposits and its hydrodynamic *** colluvial sample was collected in Anxi County,Fujian Province,Southeast China,and a small-sample scouring test was *** slope steepness ranged from 18%to 84%,unit discharge ranged from 0.56×10^(-3)to 2.22×10^(-3)m^(2)s^(-1),and gravel content ranged from 0%to 70%.The results indicated that the gravel content is the primary factor that influences the detachment capacity,followed by the discharge and then the *** detachment capacity trend with the gravel content varied over different slopes and *** power represents the best hydrodynamic parameter for modelling the detachment capacity of colluvial deposits and can be used to establish a fitting equation for the colluvium together with the mean weight diameter(MWD)(Nash-Sutcliffe efficiency(NSE)=0.96).As the gravel content increased,the soil erodibility parameters increased several folds,in some cases more than 10 folds,mainly because the soil shear strength decreased ***,as the gravel content increased,the gravel specific surface area increased,the obstruction of gravel to runoff increased,and the energy needed for runoff to overcome gravel obstruction increased,leading to 2-3 folds higher critical shear stress of runoff for soilgravel mixtures compared with pure *** summary,gravel can influence the detachment capacity by changing the soil properties,and the gravel content also affects the relationship between soil detachment capacity and the hydrodynamic *** findings deepen the understanding of the influence of gravel on soil erosion and provide a basis for

关键词： Hydraulic erosion Hydrodynamics Gravel content Soil detachment Erosion resistance Benggang

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Aptamer-conjugated upconversion nanoprobes assisted by magnetic separation for effective isolation and sensitive detection of circulating tumor cells

引用

Nano Research 2014年第9期7卷 1327-1336页

作者： shuai fang Chao Wang Jian Xiang Liang Cheng Xuejiao Song Ligeng Xu Rui Peng Zhuang Liu Institute of Functional Nano & Soft Materials (FUNSOM) Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow University Suzhou Jiangsu 215123 China

Detection of circulating tumor cells （CTCs） plays an important role in cancer diagnosis and prognosis. In this study, aptamer-conjugated upconversion nano- particles （UCNPs） are used for the first time as nanoprobes to recognize tumor cells, which are then enriched by attaching with magnetic nanoparticles （MNPs） and placing in the presence of a magnetic field. Owing to the autofluorescence- free nature of upconversion luminescence imaging, as well as the use of magnetic separation to further reduce background signals, our technique allows for highly sensitive detection and collection of small numbers of tumor cells spiked into healthy blood samples, and shows promise for CTC detection in medical diagnostics.

关键词： circulating tumar cell (CTC)detection upconversion nanoparticles magnetic nanoparticles aptamer

来源：

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

Intraspecific trait variation improves the detection of deterministic community assembly processes in early successional forests,but not in late successional forests

引用

Journal of Plant Ecology 2019年第4期12卷 593-602页

作者： shuai fang Marc William Cadotte Zuoqiang Yuan Fei Lin Ji Ye Zhanqing Hao Xugao Wang Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences BeijingChina Department of Biological Sciences University of Toronto-ScarboroughTorontoONCanada Department of Ecology and Evolutionary Biology University of TorontoTorontoONCanada

Aims Intraspecific trait variation(ITV)has been increasingly recognized to play an important role in understanding the underlying processes influencing community ***,gaps remain in our understanding of how incorporating ITV will influence the relative importance of deterministic(*** filtering,limiting similarity)and stochastic processes in driving community assembly at different successional *** We used data for eight functional traits from 55 woody species in early(24 ha)and late(25 ha)successional temperate forest plot in northeast *** employed an approximate Bayesian com-putation approach to assess the relative contribution of stochastic processes,habitat filtering and limiting similarity in driving commu-nity *** then compared the results with and without intra-specific trait variation to investigate how ITV influences the inferred importance of each *** Findings We found that when analyzing interspecific trait variation only(*** ITV),stochastic processes were observed most frequently in driving community composition,followed by habitat filtering and limiting similarity in both ***,ITV analyses showed that the relative importance of both deterministic processes(habitat filtering and limiting similarity)increased in early successional for-est,but remained virtually unchanged in late successional *** study reveals the distinctive influence of ITV on the inference of underlying processes in a context of succession and reinforces the need to estimate ITV for making correct inferences about underlying ecological processes.

关键词： Changbaishan community assembly functional trait intraspecific trait variation succession

来源：

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

Database and primer selections affect nematode community composition under different vegetations of Changbai Mountain

引用

Soil Ecology Letters 2023年第1期5卷 142-150页

作者： Yixin Sun Xiaofang Du Yingbin Li Xu Han shuai fang Stefan Geisen Qi Li CAS Key Laboratory of Forest Ecology Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China Laboratory of Nematology Wageningen UniversityWageningenThe Netherlands

High-throughput sequencing technology is increasingly used in the study of nematode ***,the annotation difference of commonly used primers and reference databases on nematode community is still *** compared two pairs of primers(3NDf/C_1132rmod,NF1F/18Sr2bR)and three databases(NT_V20200604,SILVA138/18s Eukaryota and PR2_v4.5 databases)on the determination of nematode community from four different vegetation types in Changbai Mountain,including mixed broadleaf-conifer forest,dark coniferous forest,betula ermanii Cham and alpine *** results showed that the selection of different primers and databases influenced the annotation of nematode taxa,but the diversity of nematode community showed consistent pattern among different vegetation *** findings emphasize that it is necessary to select appropriate primer and database according to the target taxonomic *** difference in primers will affect the result of nematode taxa at different classification levels,so sequencing analysis cannot be used for comparison with studies using different *** terms of annotation effect in this study,3NDf/C_1132rmod primers with NT_v20200604 database could provide more information than other combinations at the genus or species levels.

关键词： Soil nematodes Primer Database High-throughput sequencing Community composition

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

LncRNA DPP10-AS1 promotes malignant processes through epigenetically activating its cognate gene DPP10 and predicts poor prognosis in lung cancer patients

引用

Cancer Biology & Medicine 2021年第3期18卷 675-692页

作者： Haihua Tian Jinchang Pan shuai fang Chengwei Zhou Hui Tian Jinxian He Weiyu Shen Xiaodan Meng Xiaofeng Jin Zhaohui Gong Department of Biochemistry and Molecular Biology Ningbo University School of MedicineNingbo 315211China Zhejiang Province Key Laboratory of Pathophysiology Ningbo University School of MedicineNingbo 315211China Department of Thoracic Surgery The Affiliated Hospital of Ningbo University School of MedicineNingbo 315020China Department of Thoracic Surgery The Affiliated Lihuili Hospital of Ningbo UniversityNingbo 315048China

Objective:The purpose of this study was to explore the function and gene expression regulation of the newly identified lnc RNA DPP10-AS1 in lung cancer,and its potential value as a prognostic ***:q RT-PCR and Western blot were conducted to detect the expression of DDP10-AS1 and DPP10 in lung cancer cell lines and *** effects of DDP10-AS1 on DPP10 expression,cell growth,invasion,apoptosis,and in vivo tumor growth were investigated in lung cancer cells by Western blot,rescue experiments,colony formation,flow cytometry,and xenograft animal ***:The novel antisense lnc RNA DPP10-AS1 was found to be highly expressed in cancer tissues(P<0.0001),and its upregulation predicted poor prognosis in patients with lung cancer(P=0.0025).Notably,DPP10-AS1 promoted lung cancer cell growth,colony formation,and cell cycle progression,and repressed apoptosis in lung cancer cells by upregulating DPP10 ***,DPP10-AS1 facilitated lung tumor growth via upregulation of DPP10 protein in a xenograft mouse ***,DPP10-AS1 positively regulated DPP10 gene expression,and both were coordinately upregulated in lung cancer ***,DPP10-AS1 was found to associate with DPP10 m RNA but did not enhance DPP10 m RNA *** of DPP10-AS1 and DPP10 contributed to their coordinate upregulation in lung ***:These findings indicated that the upregulation of the antisense lnc RNA DPP10-AS1 promotes lung cancer malignant processes and facilitates tumorigenesis by epigenetically regulating its cognate sense gene ***10-AS1 may serve as a candidate prognostic biomarker and a potential therapeutic target in lung cancer.

关键词： Antisense long noncoding RNA DPP10-AS1 hypomethylation malignant process lung cancer

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：