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1Roles, Functions, and Mechanisms of Long Non-coding RNAs in Cancer显示文摘Long non-coding RNAs(lnc RNAs) play important roles in cancer. They are involved in chromatin remodeling, as well as transcriptional and post-transcriptional regulation, through a variety of chromatin-based mechanisms and via cross-talk with other RNA species. lnc RNAs can function as decoys, scaffolds, and enhancer RNAs. This review summarizes the characteristics of lnc RNAs, including their roles, functions, and working mechanisms, describes methods for identifying and annotating lnc RNAs, and discusses future opportunities for lnc RNA-based therapies using antisense oligonucleotides.Yiwen Fang Melissa J. Fullwood 2016Genomics, Proteomics & Bioinformatics2016,14,1:63
2Structure and coalbed methane occurrence in tectonically deformed coals显示文摘Research on structure of tectonically deformed coals(TDC) is a key issue in coal and gas outburst prevention and coalbed methane(CBM) exploitation.This paper presents a summary on the research progress in TDC's structural-genetic classification,tectonic strain influence on coal microstructure,coal porosity system,coal chemical structure and constituents,and their relationship with the excess coalbed methane.Previous studies suggested that tectonic deformation had significant influence on coal microstructure,coal super microstructure,and even chemical macromolecular structure.The main mechanisms of coal deformation are the tectonic stress degradation and polycondensation metamorphism(dynamical metamorphism).Besides,under different deformation mechanisms,the ultra-and micro-structure and chemical constituents of TDC presented distinct characteristics.Based on these achievements,we propose one possible evolutionary trend of TDC with different deformation mechanisms,and suggest that the coal and gas outburst in the TDC,especially in the mylonitic coals,may be not only controlled by geological structure,but also influenced by the tectonic stress degradation of ductile deformation.Therefore,further study on TDC should be focused on the controlling mechanism of deformation on structure and composition of coal,generation conditions and occurrence state of excess coalbed methane from deformation mechanism of coal.HOU QuanLin LI HuiJun FAN JunJia JU YiWen WANG TianKai LI XiaoShi WU YuDong 2012Science China Earth Sciences2012,55,11:49
3Micro-structural evolution and their effects on physical properties in different types of tectonically deformed coals显示文摘The macromolecular structure of tectonically deformed coals(TDC)may be determined by the deformation mechanisms of coal.Alterations of the macromolecular structure change the pore structure of TDC and thereby impact physical properties such as porosity and permeability.This study focuses on structure and properties of TDC from the Huaibei and Huainan coal mining areas of southern North China.Relationships between the macromolecular structure and the pore structure of TDC were analyzed using techniques such as X-ray diffraction,high-resolution transmission electron microcopy,and the low-temperature nitrogen adsorption.The results indicated that the directional stress condition can cause the arrangement of basic structural units(BSU)more serious and closer.And,the orientation is stronger in ductile deformed coal than in brittle deformed coal.Tectonic deformation directly influences the macromolecular structure of coal and consequently results in dynamic metamorphism.Because the size of BSU in brittle deformed coal increases more slowly than in ductile deformed coal,frictional heating and stress-chemistry of shearing areas might play a more important role,locally altering coal structure under stress,in brittle deformed coal.Strain energy is more significant in increasing the ductile deformation of coal.Furthermore,mesopores account for larger percentage of the nano-scale pore volume in brittle deformed coals,while mesopores volume in ductile deformed coal diminishes rapidly along with an increase in the proportion of micropores and sub-micropores.This research also approved that the deformations of macromolecular structures change nano-scale pore structures,which are very important for gas adsorption and pervasion space for gas.Therefore,the exploration and development potential of coal bed methane is promising for reservoirs that are subjected to a certain degree of brittle deformation(such as schistose structure coal,mortar structure coal and cataclastic structure coal).It also holds promise for TDC resulting from wrinkle structure coal of low ductile deformation and later superimposed by brittle deformation.Other kinds of TDC suffering from strong brittle-ductile and ductile deformation,such as scale structure coal and mylonitic structure coal,are difficult problems to resolve.Yiwen Ju Kray Luxbacher Xiaoshi Li Guochang Wang Zhifeng Yan Mingming Wei Liye Yu 2014International Journal of Coal Science & Technology2014,1,3:43
4Relationship between nano-scale deformation of coal structure and metamorphic-deformed environments显示文摘There is a more consanguineous relation be-tween nano-scale deformation of coal structure and meta-morphic-deformed environment. In different metamor-phic-deformed environments, deformation in the coal struc-ture can occur not only at micro-scale, but also at nano-scale, and even leads to the change of molecular structure and nano-scale pore (<100 nm) structure. The latter is the main space absorbing coalbed methane. Through X-ray diffraction (XRD) and liquid–nitrogen absorption methods, the charac-teristics of macromolecular and nano-scale pore structures of coals in different metamorphic-deformed environments and deformational series of coals have been studied. By combin-ing with high-resolution transmission electron microcopy (HRTEM), the macromolecular and nano-scale pore struc-tures are also directly observed. These results demonstrate that the stacking Lc of the macromolecular BSU in tectonic coals increases quickly from the metamorphic-deformed environment of low rank coals to that of high rank coals. For different deformed tectonic coals, in the same metamor-phic-deformed environment, the difference of Lc is obvious. These changes reflect chiefly the difference of different tem-perature and stress effect of nano-scale deformation in tec-tonic coals. The factor of temperature plays a greater role in the increase of macromolecular structure parameters Lc, the influence of stress factor is also important. With the stress strengthening, Lc shows an increasing trend, and La /Lc shows a decreasing trend. Therefore, Lc and La /Lc can be used as the indicator of nano-scale deformation degree of tectonic coals. With increasing temperature and pressure, especially oriented stress, the orientation of molecular structure be-comes stronger, and ordering degree of C-nets and the ar-rangement of BSU are obviously enhanced. For the deforma-tion of nano-scale pore structure, in the same metamor-phic-deformed environment, along with the strengthening of stress, the ratio of mesopores to its total pores volume of tec-tonic coals reduces to a large extent, the ratio of volume of micropores and the pores whose diameters are lower than micropores increases, and sub-micropores and ultra- micro-pores can be found. Moreover, the ratio of specific surface area of mesopores to its total pores reduces rapidly while theamount of sub-micropores increases more quickly. The duc-tile structure coal has a change in pore parameters similar to that of weak brittle deformation. There are differences in the deformation and evolution of nano-scale pore structure of different kinds of tectonic coals formed in different meta-morphic-deformational environments. In short, temperature and confining pressure play some role in the change of nano-scale pore structure parameters, whereas stress has important influence on the evolution of characteristic parameters in nano-scale pore structure of tectonic coals.JU Yiwen JIANG Bo HOU Quanlin WANG Guiliang 2005Chinese Science Bulletin2005,50,16:40
5New research progress on the ultrastructure of tectonically deformed coals显示文摘The structure of tectonically deformed coals shows some characteristics and regulations on the ultra-scale when influenced by different factors such as temperature,pressure and directional stress.Deformations of the macromolecular structure may induce changes in the nano-scale pore structure,which are very important for gas adsorption and pervasion.The geological impact of different mechanisms of deformation on different types of ultrastructure of tectonically deformed coals is not only of significance as a topic for scientific research, but also in studying environments of metamorphism-deformation at differing metamorphic stages.This research is also very important in studying the accumulation and occurrence conditions of coalbed methane gas,mechanisms of coal and gas outbursts,predictions of coalbed methane resources and dangers of coal and gas outbursts.This paper analyzes current research,within China and other countries, in the ultrastructure of tectonically deformed coals.The research includes(1) structural models of tectonically deformed coals;(2) the relationship between ultrastructure and stress;(3) the structure of tectonically deformed coals and its strain environment.These results are also based on our own experiments including vitirnite reflectance(R_(o,max)),X-ray diffraction(XRD) and nuclear magnetic resonance (NMR(CP/MAS + TOSS)).We discuss the important effects of the structure of tectonically deformed coals and their physical properties,and then point out some problems concerning the research progress of tectonically deformed coals.Yiwen Ju,Xiaoshi Li Laboratory of Computational Geodynamics,College of Earth Science,Graduate University of Chinese Academy of Sciences,Beijing 100049,China 2009Progress in Natural Science:Materials International2009,19,11:29
6Rice RING protein OsBBI1 with E3 ligase activity confers broad-spectrum resistance against Magnaporthe oryzae by modifying the cell wall defence显示文摘新兴的证据建议 E3 ligases 在多样的生物过程起关键作用,包括在植物的天生的有免疫力的回答。然而,在植物的 E3 ligase 参与的机制天生的免疫是不清楚的。我们报导那米饭基因, OsBBI1,与 E3 ligase 活动编码戒指手指蛋白质,调停用途广泛的疾病抵抗。OsBBI1 的表示被米饭强风真菌 Magnaporthe oryzae,以及化学 inducers 导致, benzothiadiazole 和水杨酸酸。生物化学的分析表明那 OsBBI1 蛋白质在 vitro 拥有 E3 ubiquitin ligase 活动。基因分析表明在一根 Tos17 插入线的 OsBBI1 功能的损失增加了危险性,当在转基因的植物的 OsBBI1 的 overexpression 授与提高的抵抗到 M 的多重赛跑时。oryzae。这显示 OsBBI1 对强风真菌调制用途广泛的抵抗。OsBBI1-overexpressing 植物由 M 在感染地点在房间墙中在酉分的混合物的房间和蛋白质的 cross-linking 显示出 H2O2 累积的高水平。oryzae 与相比野类型(WT ) 植物。房间墙在 OsBBI1-overexpressing 植物是更厚的并且在变异的植物更薄比在 WT 植物。我们的结果建议 OsBBI1 由修改房间墙防卫回答调制用途广泛的抵抗到强风真菌。OsBBI1 的功能的描述为在米饭对最破坏的疾病构造用途广泛的抵抗提供卓见进 E3 调停 ligase 的天生的免疫,和一个实际工具。Wei Li Sihui Zhong Guojun Li Qun Li Bizeng Mao Yiwen Deng Huijuan Zhang Longjun Zeng Fengming Song Zuhua He 2011Cell Research2011,21,5:30
7Behavior and mechanism of the adsorption/desorption of tectonically deformed coals显示文摘The physical and chemical texture of tectonically deformed coals produced by various formational mechanisms are different from those of primary coals,thus resulting in major differences among the physical properties of the reservoirs of these coals. We have studied the adsorption/desorption be-havior of tectonically deformed coals by the use of isothermal adsorption/desorption experiments un-der equilibrium moisture condition. Experiments of isothermal adsorption/desorption of methane or multi-component gases have indicated that,the adsorption curves of coals with a low degree of tec-tonic deformation conform to the type of isothermal adsorption curve described by the Langmuir equation; the methane adsorption curves of coals with strong tectonic deformation cannot be de-scribed by the Langmuir equation. The adsorption/desorption process of methane and multi-compo-nent gases in the deformed coals is not consistent with primary coals,which form an effect of hys-teresis in different kinds of tectonically deformed coals. With the change of pore structure of tectoni-cally deformed coals at reservoir condition,the added adsorbed CH4 in the experiments is desorbed on the pore surface of coals during the pressure reduction process. Thus,the result shows that the ad-sorption volume in the process of desorbing is greater than that in adsorbing. Because of the defor-mation,structural change,and transformation of the adsorption potential field of coals,it is essential to form a new kind of isothermal adsorption curve and the hysteresis effect of the desorption process.JU YiWen JIANG BO HOU QuanLin TAN YongJie WANG GuiLiang XIAO WenJiao 2009Chinese Science Bulletin2009,54,1:26
8Clinical features and treatment status of hemifacial spasm in China显示文摘Wang Lin Hu Xingyue Dong Hongjuan Wang Wenzhao Huang Yue Jin Lingjing Luo Yumin Zhang Weixi Lian Yajun Liang Zhanhua Shang Huifang Feng Yabo wu Yiwen Chen Jun Luo Weifeng Wan Xinhua 2014Chinese Medical Journal2014,,5:20
9Spectra response from macromolecular structure evolution of tectonically deformed coal of different deformation mechanisms显示文摘Coals with different deformation mechanisms(brittle deformation,brittle-ductile deformation,and ductile deformation) repre-sent different ways in macromolecular structure evolution based on the metamorphism.The evolution of coal structure could affect the occurrence condition of coalbed methane(CBM) because the nanopore structure affected by macromolecular struc-ture is the most important reservoir for CBM.This paper analyzes the evolutions and mechanisms of structure and functional group of tectonically deformed coals(TDCs) collected from Huainan-Huaibei coalfield using X-ray diffraction(XRD),Raman spectroscopy,and Fourier Transform Infrared(FTIR) spectroscopy methods.The results show that the macromolecular struc-ture evolutions of TDC are different from the primary structure coal as a result of the different metamorphic grade and defor-mation mechanisms.The different deformation mechanisms variously affect the process of functional group and polyconden-sation of macromolecular structure.Furthermore,the tectonic deformation leads to secondary structural defects and reduces the structure stability of TDC.The coupled evolution on stacking and extension caused by the changes of secondary structural de-fects results from different deformation mechanisms.We consider that the changes of chemical structure and secondary struc-tural defects are the primary reasons for the various structure evolutions of TDC compared with primary structure coal.LI XiaoShi JU YiWen HOU QuanLin LIN Hong 2012Science China Earth Sciences2012,55,8:18
10Numerical Investigation of Flow Separation Control on a Highly Loaded Compressor Cascade by Plasma Aerodynamic Actuation显示文摘To discover the characteristic of separated flows and mechanism of plasma flow control on a highly loaded compressor cascade, numerical investigation is conducted. The simulation method is validated by oil flow visualization and pressure distribution. The loss coefficients, streamline patterns, and topology structure as well as vortex structure are analyzed. Results show that the numbers of singular points increase and three pairs of additional singular points of topology structure on solid surface generate with the increase of angle of attack, and the total pressure loss increases greatly. There are several principal vortices inside the cascade passage. The pressure side leg of horse-shoe vortex coexists within a specific region together with passage vortex, but finally merges into the latter. Corner vortex exists independently and does not evolve from the suction side leg of horse-shoe vortex. One pair of radial coupling-vortex exists near blade trailing edge and becomes the main part of backflow on the suction surface. Passage vortex interacts with the concentrated shedding vortex and they evolve into a large-scale vortex rotating in the direction opposite to passage vortex. The singular points and separation lines represent the basic separation feature of cascade passage. Plasma actuation has better effect at low freestream velocity, and the relative reductions of pitch-averaged total pressure loss coefficient with different actuation layouts of five and two pairs of electrodes are up to 30.8% and 26.7% while the angle of attack is 2°. Plasma actuation changes the local topology structure, but does not change the number relation of singular points. One pair of additional singular point of topology structure generates with plasma actuation and one more reattachment line appears, both of which break the separation line on the suction surface.ZHAO Xiaohu LI Yinghong WU Yun ZHU Tao LI Yiwen 2012Chinese Journal of Aeronautics2012,25,3:17
11Cuckoo search with varied scaling factor显示文摘Lijin WANG Yilong YIN Yiwen ZHONG 2015Frontiers of Computer Science2015,9,4:15
12MHD Flow Control of Oblique Shock Waves Around Ramps in Low-temperature Supersonic Flows显示文摘This article is devoted to experimental study on the control of the oblique shock wave around the ramp in a low-temperature supersonic flow by means of the magnetohydrodynamic(MHD) flow control technique.The purpose of the experiments is to take advantage of MHD interaction to weaken the oblique shock wave strength by changing the boundary flow characteristics around the ramp.Plasma columns are generated by pulsed direct current(DC) discharge,the magnetic fields are generated by Nd-Fe-B rare-earth permanent magnets and the oblique shock waves in supersonic flow are generated by the ramp.The Lorentz body force effect of MHD interaction on the plasma-induced airflow velocity is verified through particle image velocimetry(PIV) measurements.The experimental results from the supersonic wind tunnel indicate that the MHD flow control can drastically change the flow characteristics of the airflow around the ramp and decrease the ratio of the Pitot pressure after shock wave to that before it by up to 19.66%,which leads to the decline in oblique shock wave strength.The oblique shock waves in front of the ramp move upstream by the action of the Lorentz body force.The discharge characteristics are analyzed and the MHD interaction time and consumed energy are determined with the help of the pulsed DC discharge images.The interaction parameter corresponding to the boundary layer velocity can reach 1.3 from the momentum conservation equation.The velocity of the plasma column in the magnetic field is much faster than that in the absence of magnetic field force.The plasma can strike the neutral gas molecules to transfer momentum and accelerate the flow around the ramp.Su Changbing,Li Yinghong,Cheng Bangqin,Wang Jian,Cao Jun,Li Yiwen Engineering College,Air Force Engineering University,Xi’an 710038,China 2010Chinese Journal of Aeronautics2010,23,1:15
13Genome of Wild Mandarin and Domestication History of Mandarin显示文摘官员(柠檬 reticulata ) 是世界范围的最重要的柠檬庄稼之一。它的驯服被相信发生在华南,它是四几千年的官员耕作的中心之一。我们在 Nanling 区域附近收集了官员的自然野人口并且在附近栽培了 landraces。我们发现柠檬性的酸水平戏剧性地在栽培官员被减少。理解 ? 官员驯服的基因基础,我们 de novo 装配了野官员的一个草稿染色体并且分析了一套 104 个柠檬染色体。我们发现 Mangshan 官员是一种原始类型并且二个独立驯服事件发生了,分别地导致在北方和南方 Nanling 山的二组栽培官员(MD1 和 MD2 ) 。二个瓶颈和有效人口尺寸的二扩大为栽培官员的 MD1 组被识别。然而,在 MD2 组织 ? 在人口尺寸有长、连续的减少。MD1 和 MD2 官员从栽培 pummelo 种类显示出种间的基因渗入的不同模式。我们在官员的驯服期间在选择下面可能在基因在柠檬酸盐内容的规定包含了的 aconitate hydratase (ACO ) 识别了高分叉的一个区域,它是。这研究为现存野官员人口的地理起源提供具体基因证据并且使驯服和官员的进化历史清楚些。Lun Wang Fa He Yue Huang Jiaxian He Shuizhi Yang Jiwu Zeng Chongling Deng Xiaolin Jiang Yiwen Fang Shaohua Wen Rangwei Xu Huiwen Yu Xiaoming Yang Guangyan Zhong Chuanwu Chen Xiang Yan Changfu Zhou Hongyan Zhang Zongzhou Xie Robert M. Larkin Xiuxin Deng Qiang Xu 2018Molecular Plant2018,11,8:14
14Comparison of coalbed gas generation between Huaibei-Huainan coalfields and Qinshui coal basin based on the tectono-thermal modeling显示文摘The geothermal history and the tectonic subsidence history of the Huaibei-Huainan coalfields were reconstructed by using the vitrinite reflectance data, and their correlative restriction on coalbed gas generation of Huaibei-Huainan coalfields and Qinshui coal basin was discussed. The burial, thermal, and maturity histories of are similar between Huaibei coalfield and Huainan coalfield, obviously different from those of Qinshui coal basin. Based on the tectono-thermal evolution characters of Huaibei-Huainan coalfields and Qinshui basin, the process of coalbed gas generation can be divided into three stages: (1) During Early Mesozoic, both in Huaibei-Huainan and Qinshui, the buried depth of Permian coal seams increased rapidly, which resulted in strong metamorphism and high burial temperature of coal seams. At this stage, the coal rank was mainly fat coal, and locally reached coking coal. These created an environment favoring the generation of thermogenic gas. (2) From Late Jurassic to Cretaceous, in the areas of Huaibei-Huainan, the strata suffered from erosion and the crust became thinning, and the Permian coal-bearing strata were uplifted to surface. At this stage, the thermogenic gas mostly escaped. Conversely, in Qinshui basin, the cover strata of coal seams kept intact during this stage, and the thermogenic gas were mostly preserved. Furthermore, with the interaction of magmatism, the burial temperature of coal seams reached higher peak value, and it was suitable for the secondary generation of thermogenic gas. (3) From Paleogene onward, in area of Huainan-Huaibei, the maturity of coal and burial temperature were propitious to the generation of secondary biogenic gases. However, in Qinshui basin, the maturity of coal went against genesis of second biogenic gas or thermogenic gas. By comparison, Huaibei-Huainan coalfields are dominated by thermogenic gas with a significant biogenic gas and hydrodynamic overprint, whereas Qinshui basin is dominated mainly by thermogenic gas.WU YuDong JU YiWen HOU QuanLin HU ShengBiao PAN JieNan FAN JunJia 2011Science China Earth Sciences2011,54,7:13
15Rice functional genomics:decades'efforts and roads ahead显示文摘Rice(Oryza sativa L.)is one of the most important crops in the world.Since the completion of rice reference genome sequences,tremendous progress has been achieved in understanding the molecular mechanisms on various rice traits and dissecting the underlying regulatory networks.In this review,we summarize the research progress of rice biology over past decades,including omics,genome-wide association study,phytohormone action,nutrient use,biotic and abiotic responses,photoperiodic flowering,and reproductive development(fertility and sterility).For the roads ahead,cutting-edge technologies such as new genomics methods,high-throughput phenotyping platforms,precise genome-editing tools,environmental microbiome optimization,and synthetic methods will further extend our understanding of unsolved molecular biology questions in rice,and facilitate integrations of the knowledge for agricultural applications.Rongzhi Chen Yiwen Deng Yanglin Ding Jingxin Guo Jie Qiu Bing Wang Changsheng Wang Yongyao Xie Zhihua Zhang Jiaxin Chen Letian Chen Chengcai Chu Guangcun He Zuhua He Xuehui Huang Yongzhong Xing Shuhua Yang Daoxin Xie Yaoguang Liu Jiayang Li 2022Science China(Life Sciences)2022,65,1:12
16Preliminary Experimental Investigation on MHD Power Generation Using Seeded Supersonic Argon Flow as Working Fluid显示文摘这篇论文在 magnetohydrodynamic (MHD ) 上论述初步的试验性的调查把播种的超声的氩流动用作工作液体的发电。氦和氩被用作司机并且在一条吃惊隧道分别地驾驶气体。平衡接触表面操作模式被用来获得高温度气体,并且传导性被增加种子 K2CO3 粉末进驾驶的节获得。在嘴入口总数压力的条件下面是 0.32 MPa,全部的温度 6 504 K,磁场密度大约 0.5 T 和嘴插头速度 1 959 m/s,正式就职电压和分割 MHD 发电隧道的电线走火电流被测量,并且试验性的结果同意理论计算;平均传导性是从电压和电流的特征计算的大约 20 S/m。当负担因素是 0.5 时, MHD 发电隧道的最大的力量密度到达 4.797 1 MW/m3,和最大的热含量抽取率是 0.34% 。最后,为煤气的州的参数的间接测试的原则和方法被导出并且分析。LI Yiwen LI Yinghong LU Haoyu ZHU Tao ZHANG Bailing CHEN Feng ZHAO Xiaohu 2011Chinese Journal of Aeronautics2011,24,6:11
17Anti-tumor activity and immunological modification of ribosome-inactivating protein (RIP) from Momordica charantia by covalent attachment of polyethylene glycol显示文摘使核糖体失去活性的蛋白质(裂开) 是酶的一个家庭那 depurinate rRNA 并且禁止蛋白质生合成。这里,我们报导纯化,导致 apoptosis 活动,和聚乙烯乙二醇(木钉) 修正从痛苦的甜瓜种子裂开。蛋白质有 N-Asp-Val-Ser-Phe-Arg 的一个同质的 N 终端序列。而且, RIP 显示了强壮的导致 apoptosis 活动和压制的癌症细胞生长。这可能被归因于 caspases-3 的激活。使它可得到为在 vivo 申请, immunogenicity 裂开被化学修正与 20 kDa (mPEG ) 减少 2-Lys-NHS。PEGylated 和 non-PEGylated 的抑制活动对癌症房间裂开比对正常 PEGylated 的房间,和 antigenicity 裂开的强壮得多显著地被减少。我们的结果建议 PEGylated 裂开可能潜在地作为反癌症被开发药。Mengen Li Yiwen Chen Zhongyu Liu Fubing Shen Xiaoxiao Bian Yanfa Meng 2009Acta Biochimica et Biophysica Sinica2009,41,9:11
18An Optimization Algorithm for Service Composition Based on an Improved FOA显示文摘Large-scale service composition has become an important research topic in Service-Oriented Computing(SOC). Quality of Service(Qo S) has been mostly applied to represent nonfunctional properties of web services and to differentiate those with the same functionality. Many studies for measuring service composition in terms of Qo S have been completed. Among current popular optimization methods for service composition, the exhaustion method has some disadvantages such as requiring a large number of calculations and poor scalability. Similarly,the traditional evolutionary computation method has defects such as exhibiting slow convergence speed and falling easily into the local optimum. In order to solve these problems, an improved optimization algorithm, WS FOA(Web Service composition based on Fruit Fly Optimization Algorithm) for service composition, was proposed, on the basis of the modeling of service composition and the FOA. Simulated experiments demonstrated that the algorithm is effective, feasible, stable, and possesses good global searching ability.Yiwen Zhang Guangming Cui Yan Wang Xing Guo Shu Zhao 2015Tsinghua Science and Technology2015,20,1:11
19Pressure balance and imbalance in the optic nerve chamber: The Beijing Intracranial and Intraocular Pressure (iCOP) Study显示文摘To determine the interdependence of intracranial pressure(ICP) and intraocular pressure(IOP) and how it affects optic nerve pressures, eight normal dogs were examined using pressure-sensing probes implanted into the left ventricle, lumbar cistern, optic nerve subarachnoid space in the left eye, and anterior chamber in the left eye. This allowed ICP, lumbar cistern pressure(LCP), optic nerve subarachnoid space pressure(ONSP) and IOP to be simultaneously recorded. After establishing baseline pressure levels, pressure changes that resulted from lowering ICP(via shunting cerebrospinal fluid(CSF) from the ventricle) were recorded. At baseline, all examined pressures were different(ICP>LCP>ONSP), but correlated(P<0.001). As ICP was lowered during CSF shunting, IOP also dropped in a parallel time course so that the trans-lamina cribrosa gradient(TLPG) remained stable(ICP-IOP dependent zone). However, once ICP fell below a critical breakpoint, ICP and IOP became uncoupled and TLPG changed as ICP declined(ICP-IOP independent zone). The optic nerve pressure gradient(ONPG) and trans-optic nerve pressure gradient(TOPG) increased linearly as ICP decreased through both the ICP-IOP dependent and independent zones. We conclude that ICP and IOP are coupled in a specific pressure range, but when ICP drops below a critical point, IOP and ICP become uncoupled and TLPG increases. When ICP drops, a rise in the ONPG and TOPG creates more pressure and reduces CSF flow around the optic nerve. This change may play a role in the development and progression of various ophthalmic and neurological diseases, including glaucoma.Ruowu Hou Zheng Zhang Diya Yang Huaizhou Wang Weiwei Chen Zhen Li Jinghong Sang Sumeng Liu Yiwen Cao Xiaobin Xie Ruojing Ren Yazhuo Zhang Bernhard A. Sabel Ningli Wang 2016Science China(Life Sciences)2016,59,5:11
20GJB2 mutation spectrum in deaf population in a typical southeastern area of China显示文摘Mutations in GJB2 gene are the most frequently found mutations in patients with nonsyndromic hearing impairment. However, the spectrum and prevalence of mutations in this gene vary among different ethnic groups. In China, 30,000 infants are born with congenital hearing impairment annually. In order to provide appropriate genetic testing and counseling to the families, we investigated the molecular etiology of nonsyndromic deafness in 103 unrelated school children attending Nantong School for the Deaf and Mute in Jiangsu Province, China. The coding exon of the GJB2 gene was PCR amplified and sequenced. Sixty two GJB2 mutant alleles were identified in 35.9% (37/103) of the patients. Twenty five patients carried two pathogenic mutations and 12 patients carried one mutant allele. The 235delC was the most common mutation accounting for 69.4% (43/62) of GJB2 mutant alleles. The GJB2 mutant alleles accounted for 30.1% (62/206) of all chromosomes responsible for nonsyndromic hearing impairment. Testing of the 3 most prevalent deleterious frame shift mutations in this cohort detected 100% of all GJB2 mutant alleles. These results demonstrate that an effective genetic testing of GJB2 gene for patients and families with nonsyndromic hearing impairment is possible.DAI Pu1*, YOU Yi-wen2*, CUI Jing-hong2*, YU Fei1, HAN Bing 1, KANG Dong-yang1, YUAN Hui-jun1, HAN Dong-yi1, 1. Department of Otolaryngology, PLA General Hospital, Beijing, People’s Republic China, 100853 2. Department of Otolaryngology, Nantong University Affiliated Hospital, Nantong, Jiangsu Province, People’s Republic China, 226001 *Pu Dai, Yiwen You, Jinghong Cui contribute equally to this paper 2006Journal of Otology2006,1,2:10
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