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141.
We investigate the behavior of a one-dimensional two component dynamical system. The dynamical equations are obtained by extracting an essence out of equations which describe the behavior of a biochemical reaction catalyzed by an allosteric protein. The obtained dynamical equations are similar to van der Pol equations. The dynamical equations are solved numerically. In the continuous system, a solitary wave is found to occur in certain ranges of the parameter space. The condition of occurrence of the solitary wave is investigated. The solitary wave can be induced by various initial perturbations, including rectangular ones with space-wise length longer than a certain critical value. The property of the solitary wave is similar to that of the impulses in nervous systems. In the discrete system, a spatially locked solitary pattern is found to occur in certain ranges of the parameter space. 相似文献
142.
Science China Life Sciences - The stereotaxic brain atlas is a fundamental reference tool commonly used in the field of neuroscience. Here we provide a brief history of brain atlas development and... 相似文献
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A. E. Vedernikov T. V. Anan’ina A. A. Kokhanenko V. N. Stegniy 《Russian Journal of Genetics》2010,46(10):1152-1153
The distribution of sequences homologous to the Calliphora erythrocephala Mg. sex chromosome was studied in Protophormia terranovae R-D and Lucilia sp. The chromatin structure was found to be similar in regions containing homologous DNA sequences. 相似文献
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Bin Zhang Liyao Qiu Wei Xiao Hong Ni Lunhao Chen Fan Wang Weihao Mai Jintao Wu Aimin Bao Hailan Hu Hui Gong Shumin Duan Anan Li Zhihua Gao 《Neuron》2021,109(2):331-346.e7
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147.
S. S. Anan’ev Yu. L. Bakshaev P. I. Blinov V. A. Bryzgunov V. V. Vikhrev S. A. Dan’ko A. A. Zelenin E. D. Kazakov Yu. G. Kalinin A. S. Kingsep V. D. Korolev E. A. Smirnova G. I. Ustroev A. S. Chernenko V. A. Shchagin 《Plasma Physics Reports》2010,36(7):601-608
Results are presented from experimental studies of the parameters of an X-pinch-based neutron source made of 70- to 80-μm-diameter deuterated polyethylene fibers. At currents of up to 1.7 MA and a current rise time of ~150 ns, hot plasma spots were observed in the fiber crossing region. The formation of hot spots was accompanied by the generation of short soft X-ray pulses with a duration of 2–4 ns, as well as by neutron emission. The neutron energy was measured using the time-of-flight technique in four directions, at 0°, 90°, 180°, and 270° with respect to the load axis. The mean energy of the neutrons emitted along the axis towards the anode and cathode was found to be 2.0 ± 0.2 and 2.6 ± 0.1 MeV, respectively, and that of neutrons emitted in two opposite directions along the radius, 2.5 ± 0.1 and 2.4 ± 0.1 MeV. The maximum neutron yield at a current amplitude of 1.6 MA was of 1010 neutrons per shot. 相似文献
148.
Chaojuan Yang Yonglu Tian Feng Su Yangzhen Wang Mengna Liu Hongyi Wang Yaxuan Cui Peijiang Yuan Xiangning Li Anan Li Hui Gong Qingming Luo Desheng Zhu Peng Cao Yunbo Liu Xunli Wang Min-hua Luo Fuqiang Xu Wei Xiong Liecheng Wang Xiang-yao Li Chen Zhang 《蛋白质与细胞》2022,(3):203-219
Many people affected by fragile X syndrome(FXS)and autism spectrum disorders have sensory processing deficits,such as hypersensitivity to auditory,tactile,and v... 相似文献
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