|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Prognostic value of KIT mutation in gastrointestinal stromal tumors显示文摘AIM: To examine the prevalence and prognostic significance of C-kit gene mutation and analysis the correlation of C-kit gene mutation and the clinicalpathologic parameters of GISTs. METHODS: Eighty-two GISTs were studied for the mutation of C-kit gene by PCR-SSCP, DNA sequence. Statistical comparison were used to analysis the correlation of C-kit gene mutation and clinicalpathology, clinical behavior, recurrence. RESULTS: (1) Mutation-positive and mutation-negative GISTs were 34 and 48,respectively; (2) Among the sepatients with C-kit mutation remained a significantly poor prognosis associated with 59% 3-year survival compared to those whose tumors did not; (3) Tumor size, PCNA index, mitotic cell number, presence of necrosis, microscopic invasion to adjacent tissues, recurrence and distant metastasis among mutation-positive and mutation-negative GISTs were significantly different. CONCLUSION: C-kit mutation is a undoubtedly pivotal event in GIST and may be associated with poor prognosis. Evaluation of C-kit gene mutation may have both prognosis and therapeutic significances. | Xiao-HongLiu Chen-GuangBai QiangXie FeiFeng Zhi-YunXu Da-LieMa | 2005 | World Journal of Gastroenterology2005，11，25： | 5 |
| 2 | Fragmentation study of two brassinolides by ion trap tandem mass spectrometry显示文摘The fragmentation pathways of two isomers of brassinosteroids,28-homobrassinolide(28-h-BL)and 28-epihomobrassinolide(28-eh-BL),have been investigated by tandem mass spectrometry(MSn,n=1,2,3,4)with the electrospray ionization(ESI) source.The ESI mass spectrometric fragmentation pathways of protonated 28-h-BL and 28-eh-BL were comprehensively elucidated,and the principles revealed in this investigation could potentially be used to identify and distinguish brassinosteroids and their isomers. | HUO FeiFeng BAI Yu LIU HuWei | 2010 | Chinese Science Bulletin2010，55，21： | 4 |
| 3 | Scheduling small number of quay cranes with non- interference constraint 显示文摘 | Liu Ming Zheng Feifeng Li Jinfeng | 2015 | Optimization Letters2015，9，2： | 1 |
| 4 | GNSS-based BiSAR imaging using modified range migration algorithm显示文摘This paper proposed a new focusing approach for the bistatic SAR systems with a GNSS(Global Navigation Satellite System) satellite as the transmitter. Because of the long integration time the inherited curvature of the transmitter's trajectory was adopted and the spatial variance of the equivalent velocity was derived under the principal of equivalent slant range model in the system signal model. The proposed focusing approach consists of two-step processing. Firstly, the general Doppler phase from constant velocity of the echo data is focused by modified Stolt mapping. Secondly, the residual nonlinear Doppler phase due to velocity variation is compensated by means of block-processing-based adaptive phase compensation to achieve large scene focusing. The simulation and experimental results validate the proposed algorithm in GNSS-based Bi SAR systems. | ZENG Tao LIU FeiFeng ANTONIOU Michail CHERNIAKOV Mikhail | 2015 | Science China(Information Sciences)2015，58，8： | 1 |
| 5 | Optimal algorithms for the online time series search problem 显示文摘 | XU Yinfeng ZHANG Wenming ZHENG Feifeng | 2011 | Theoretical Computer Science2011，412，3： | 1 |
| 6 | Insulin peptides and their receptors regulate ovarian development and oviposition behavior in Diaphorina citri显示文摘Diaphorina citri is an important vector of Citrus Huanglongbing(HLB)disease.After feeding on young host plant shoots,the population of D.citri can increase significantly.Females also only lay eggs on young shoots.However,there are few studies on the mechanism of this phenomenon.Exogenous nutrient signals can affect the insulin signaling system of D.citri after feeding on young shoots.In this study,the expression of upstreamfactors DclLPl,DclLP2,and DclR in the insulin signaling system of D.citri was upregulated after feeding on young shoots.After being silenced by RNA interference technology,the results showed that the number of oviposited eggs of D.citri was significantly decreased and the ovarian development was inhibited with severe vacuolation.In addition,detection using quantitative reverse transcription-polymerase chain reaction showed that the upstream regulatory gene DcRheb of the target of rapamycin(TOR)pathway and the downstream reproduction-related DcVg gene were also significantly downregulated.These results suggest that feeding upon young shoots may upregulate the expression levels of upstream factors DclLPl,DclLP2,and DclR in the insulin signaling system.The signal will be through upregulating the expression of DcRheb,an upstream gene of the TOR signaling pathway.This in turn influences yolk metabolism,which eventually causes the ovaries of female D.citri to mature and therefore initiate oviposition behavior. | Ziye Wang Delong Tan Feifeng Wana Shuhao Guo Jinhua Liu Andrew G.S.Cuthbertson Baoli Qiu Wen Sang | 2023 | Insect Science2023，30，1： | 1 |
| 7 | Hybrid Evolutionary Algorithms in a SVR Traffic Flow Forecasting Model 显示文摘 | Hong Wei-Chiang Dong Yucheng Zheng Feifeng | 2011 | Applied Mathematics & Com- putation2011，217，15： | 1 |
| 8 | Experimental demonstration of passive BSAR imaging using navigation satellites and a fixed receiver 显示文摘 | Antoniou M Zeng Z Feifeng L | 2012 | IEEE Geoscience and Remote Sensing Letters2012，9，3： | 1 |
| 9 | Experimental dem- onstration of passive BSAR imaging using navigation satel- lites and a fixed receiver显示文摘 | Antoniou M Zeng Z Liu Feifeng | 2012 | IEEE Geoscience and Remote Sensing Letters2012，9，3： | 1 |
| 10 | A new derivatization approach for the rapid and sensitive analysis of brassinosteroids by using ultra high performance liquid chromatography-electrospray ionization triple quadrupole mass spectrometry显示文摘 | Feifeng Huo Xin Wang Yehua Han Yu Bai Wei Zhang Hancheng Yuan Huwei Liu | 2012 | Talanta2012，，： | 1 |
| 11 | Colon cancer stem cell markers CD44 and CD133 in patients with colorectalcancer and synchronous hepatic metastases显示文摘 | Feifeng Jing Hun Kim Chang Kim Young Kim Jae Lee Hyeong Kim | 2015 | International Journal of Oncology2015，，： | 1 |
| 12 | Electrospun advanced nanomaterials for in situ transmission electron microscopy:Progress and perspectives显示文摘Electrospun nanofibers(NFs)have shown excellent properties including high porosity,abundant active sites,controllable diameter,uniform and designable structure,high mechanical strength,and superior resistance to external destruction,which are ideal nanoreactors for in situ characterizations.Among various techniques,in situ transmission electron microscopy(TEM)has enabled operando observation at the atomic level due to its high temporal and spatial resolution combined with excellent sensitivity,which is of great importance for rational materials design and performance improvement.In this review,the basic knowledge of in situ TEM techniques and the advantages of electrospun nanoreactors for in situ TEM characterization are first introduced.The recent development in electrospun nanoreactors for studying the physical properties,structural evolution,phase transition,and formation mechanisms of materials using in situ TEM is then summarized.The electrochemical behaviors of carbon nanofibers(CNFs),metal/metal oxide NFs,and solidelectrolyte interphase for different rechargeable batteries are highlighted.Finally,challenges faced by electrospun nanoreactors for in situ TEM characterization are discussed and potential solutions are proposed to advance this field. | Jingyue Zhao Zulin Li Shiwen Lv Manxi Wang Chuanping Li Xuan Li Hongyang Chen Manxian Li Xiaochuan Chen Feifeng Wang Weiwei Fan Junxiong Wu Ziqiang Wang Xiaoyan Li Yuming Chen | 2023 | InfoMat2023，5，12： | 0 |
| 13 | Monitoring nitrogen concentration of oilseed rape from hyperspectral data using radial basis function显示文摘Remote sensing technology is the important tool of digital earth,it can facilitate nutrient management in sustainable cropping systems.In the study,two types of radial basis function(RBF)neural network approaches,the standard radial basis function(SRBF)neural networks and the modified type of RBF,generalized regression neural networks(GRNN),were investigated in estimating the nitrogen concentrations of oilseed rape canopy using vegetation indices(VIs)and hyperspectral reflectance.Comparison analyses were performed to the spectral variables and the approaches.The Root Mean Square Error(RMSE)and determination coefficients(R2)were used to assess their predictability of nitrogen concentrations.For all spectral variables(VIs and hyperspectral reflectance),the GRNN method produced more accurate estimates of nitrogen concentrations than did the SRBF method at all ranges of nitrogen concentrations,and the better agreements between the measured and the predicted nitrogen concentration were obtained with the GRNN method.This indicated that the GRNN method is prior to the SRBF method in estimation of nitrogen concentrations.Among the VIs,the Modified Chlorophyll Absorption in Reflectance Index(MCARI),MCARI1510,and Transformed Chlorophyll Absorption in Reflectance Index are better than the others in estimating oilseed rape canopy nitrogen concentrations.Compared to the results from VIs,the hyperspectral reflectance data also gave an acceptable estimation.The study showed that nitrogen concentrations of oilseed rape canopy could be monitored using remotely sensed data and the RBF method,especially the GRNN method,is a useful explorative tool for oilseed rape nitrogen concentration monitoring when applied on hyperspectral data. | Fumin Wang Jingfeng Huang Yuan Wang Zhuanyu Liu Dailiang Peng Feifeng Cao | 2013 | International Journal of Digital Earth2013，6，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员