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| 1 | Stimulatory Effects of NMDA on Intracellular Ca^(2+) Nonlinear Kinetic Model in Rat Dorsal Root Ganglion Neurons显示文摘The present study revealed the stimulatory effects of NMDA on intracellular ca 2+ concentration in rat dorsal root ganglion (DRG) neurons. Fura 3/AM, an intracellular calcium fluorescent indicator was used to monitor the fluctuation of 〔ca 2+ 〕 i. Here we present the evidence that (1) Confocal microscopy resolved the cells of three different sizes, based on which a cell diameter distribution histogram was drawn. The fluorescence signals originated from the cells of different sizes, small size (diameter<30μm), medium size (diameter between 30 to 50μm),and large size (diameter>50μm); presumably intracellular Ca 2+ concentration was different in the cells of different sizes. (2) The time related variation of fluorescence intensity was observed. In particular, the fluorescence intensity in 0 Ca 2+ bath solution was affected by the application of high ca 2+ solution. (3) In 0 ca 2+ bath solution the intracellular Ca 2+ concentration nonlinear properties of distinct diameter cells was described. (4) A kind of SETAR model was fitted with a medium sized cell.(5)The residuals from the fitted model were tested to see whether they were plausibly Gaussian. These findings indicated that in distinct types of cells intracellular Ca 2+ concentration had different characteristics in different DRG neurons, and contributed to different functions of these neurons. Besides, the established threshold autoregressive model can share intracellular ca 2+ with the main nonlinear kinetic | LAN Tong Han 1, LI Guo Hua 2, LI Zhi Wang 2, LIN Jia Rui 11 Department of Biomedical Engineering,Huazhong University of Science and Technology, Wuhan 430074,China 2 Department of Molecular and Cellular Neurobiology, Research Center of Experimental Medicine, Huazhong University of Science and Technology, Tongji Medical college, Wuhan 430030,China | 2002 | Chinese Journal of Biomedical Engineering(English Edition)2002，11，4： | 3 |
| 2 | Holation friction pressingriveting of AZ31 magnesium alloy sheet 显示文摘 | Dimn 11 Y Han G K Wang M X el al | 2014 | Materials and De-sign2014，54，： | 1 |
| 3 | An assessment of extraction versus nonextraction orthodontic treatment using the peer assessment rating(PAR) index显示文摘 | Holman J K Hans M G Nelson S et ' 11 | 1998 | Angle Orthod1998，68，6： | 1 |
| 4 | Incidence and mortality of female breast cancer in Jiangsu, China 显示文摘 | Wu 11 Han RQ Zhou JY | 2014 | Asian Pacific journal of cancer prevention : APJCP2014，15，6： | 1 |
| 5 | Intelligence in relation to obe- meta-analysi 显示文摘 | Yu ZB Han SP Cao XG sity:a systematic review and 2010 11:656 670 | 2010 | Obes Rev2010，，： | 1 |
| 6 | Improved paging scheme based on distribution density information of users in mobile communication systems显示文摘 | Kwon C W Han 11 Cho D H | 2003 | IEICE Trans Commun2003，86，4： | 1 |
| 7 | Synthesis, Crystal Structure and Magnetic Property of Disodium Biscarbonato cobaltate(Ⅱ) Tetrahydrate, Na_2Co(CO_3)_2·4H_2O显示文摘The title compound, Na 2Co(CO 3) 2·4H 2O, was synthesized by dropwise addition of 1.0 mL of 1 mol/L Co(CH 3COO) 2 to 50 mL of aqueous solution containing 7.0 g(66.0 mmol) of Na 2CO 3 and 2.5 g(29.8 mmol) of NaHCO 3 under stirring. A rose colored rhombohedral crystal grew by the slow evaporation of the solution of the title compoud at room temperature. The crystal structure was established on the basis of the single crystal X ray diffraction data. Na 2Co(CO 3) 2·4H 2O crystallizes in the monoclinic space group C2/c with a =0.856 6(1) nm, b =0.714 6(1) nm, c = 1 438 7(2) nm, β =97.59(1)° , V =0.873 0(2) nm 3 , D x=2.260 g/cm 3, F (000)=596, M r=296 99, μ (Mo K α)=21.06 cm -1 , Z =4 and the final R(F) =0.032 and wR(F 2) =0.068 on the basis of 947 reflections ( F 2 ≥ 2σ(F 0 2)). The crystal consists of H 2O molecules, Na + ions and 2D 2 ∞[Co(CO 3) 2] 2- layers extending parallel to (001). H 2O molecules and Na + cations are located between the 2D layers. Each Co atom is tetrahedrally coordinated by four O atoms from four CO 2- 3 groups with d (Co\O)=0.206 5(2) nm, 0.207 6(2) nm and the angle of O\Co\O is in the range of 97.7(1)°—128.5(1)°. The CO 2- 3 group bridging two Co atoms via two O atoms deviates from D 3h symmetry with d (C\O)=0.127 2(3)\0.129 9(3) nm and the angle of O\C\O is in the range of 119.5(2)°\123.4(2)°. Each Na atom, with two close Na neighbours at 0.338 4(2) nm and 0 346 7(2) nm, respectively, is octahedrally coordinated by six O atoms from four H 2O molecules and two carbonate groups belonging to two layers with d (Na\O)=0.232 7(2)\0.241 1(2) nm. Of two crystallographically different H 2O molecules, one forms hydrogen bonds to two CO 3 2- groups of one 2D layer, and the other to those from two different 2D layers. Na 2Co(CO 3) 2·4H 2O is antiferromagnetic below 16 K, and between 30\300 K its magnetic behaviour obeys Curie Weiss law χ m(cm 3·mol -1 )=2.625/( T -12.1) with μ eff =4.5 B.M. at 298 K. | ZHENG Yue Qing *, YE Yu Han and HU Fu Tao(Chemistry Department, Ningbo University, Ningbo 315211, P. R. China)PETERS Karl and von SCHNERING Hans Georg(Max Planck Institut für Festkrperforschung, D 70569 Stuttgart, Germany) (Received Nov. 11, 199 | 1999 | Chemical Research in Chinese Universities1999，15，4： | 0 |
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