Objective To evaluate the application of phasecontrast cine magnetic resonance imaging (MRI) in endoscopic aqueductoplasty for patients with obstructive hydrocephalus. Methods The clinical diagnosis of hydrocephalus d...Objective To evaluate the application of phasecontrast cine magnetic resonance imaging (MRI) in endoscopic aqueductoplasty for patients with obstructive hydrocephalus. Methods The clinical diagnosis of hydrocephalus due to aqueduct obstruction in 23 patients was confirmed by phase contrast cine MRI examination.展开更多
The geomagnetic field(GMF)is an environmental cue that provides directional information for animals.The intensity of GMF is varied over space and time.Variations in the GMF intensity afect the navigation of animals an...The geomagnetic field(GMF)is an environmental cue that provides directional information for animals.The intensity of GMF is varied over space and time.Variations in the GMF intensity afect the navigation of animals and their physiology.In this study,the phototaxis of the migratory insect rice planthopper Nilaparvata lugens(N.lugens)and frataxin in N.lugens(NI-fh),which is a mitochondrial protein required for cellular iron homeostasis and iron-sulfur cluster assembly,were investigated by using different intensities of magnetic field.From the results,individuals of N.lugens showed decreased phototaxis when reared and tested in a behavioral arena under a strong magnetic field.Besides the reduction in performance,an accompanying ffect of the strong magnetic field condition was a reduced level of Nl-fh-messenger RNA,and a NI-fh knockdown indeed impaired the phototactic behavior in a tested sample of insects.This leads to the conclusion that the expression of frataxin is dependent on the strength of the surrounding magnetic field and that functional frataxin facilitates phototactic behavior in N.lugens.展开更多
The complexMn ￡¨C ￡±￡3 H ￡? N￡2OBr ￡(c)￡2￡¨C￡μH￡μN￡(c)2·3C5H5 N has been synthesized and characterized by X-Ray diffraction,IR and variable temperature(?10to ?￡2￡*￡?K￡(c)magnetic s...The complexMn ￡¨C ￡±￡3 H ￡? N￡2OBr ￡(c)￡2￡¨C￡μH￡μN￡(c)2·3C5H5 N has been synthesized and characterized by X-Ray diffraction,IR and variable temperature(?10to ?￡2￡*￡?K￡(c)magnetic susceptibility￡(r)X-Ray dif fraction result for the single crystal shows that the crysta l belongs to monoclinic,space group P21￡ˉc￡?a￡1/2￡±￡(r)￡°￡1￡?￡1￡¨￡3￡(c)nm￡?b￡1/2￡2￡(r)￡°￡1￡°￡3￡¨￡μ￡(c)nm￡?c￡1/2￡2￡(r)￡°￡′￡?￡±￡¨￡?￡(c)nm￡?|?￡1/2￡1￡*￡(r)￡3￡?￡?￡¨￡?￡(c)￡?V￡1/2￡′￡(r)6&獭?￡¨￡2￡(c)nm￡3￡?Z ￡1/2￡′￡?Dc￡1/2￡±￡(r)47g·cm-3 。展开更多
文摘Objective To evaluate the application of phasecontrast cine magnetic resonance imaging (MRI) in endoscopic aqueductoplasty for patients with obstructive hydrocephalus. Methods The clinical diagnosis of hydrocephalus due to aqueduct obstruction in 23 patients was confirmed by phase contrast cine MRI examination.
基金We thank Wei Pan for generous assistance in the setup and maintenance of magnetic field equipment of solenoidal coils.This research was supported by the National Nat-ural Science Foundation of China(3167085,31870367,31470454)the Natural Science Foundation of Jiangsu Province Youth Fund(BK20160717)the Natural Sci-ence Foundation ofChina for Young Scholars(31701787).
文摘The geomagnetic field(GMF)is an environmental cue that provides directional information for animals.The intensity of GMF is varied over space and time.Variations in the GMF intensity afect the navigation of animals and their physiology.In this study,the phototaxis of the migratory insect rice planthopper Nilaparvata lugens(N.lugens)and frataxin in N.lugens(NI-fh),which is a mitochondrial protein required for cellular iron homeostasis and iron-sulfur cluster assembly,were investigated by using different intensities of magnetic field.From the results,individuals of N.lugens showed decreased phototaxis when reared and tested in a behavioral arena under a strong magnetic field.Besides the reduction in performance,an accompanying ffect of the strong magnetic field condition was a reduced level of Nl-fh-messenger RNA,and a NI-fh knockdown indeed impaired the phototactic behavior in a tested sample of insects.This leads to the conclusion that the expression of frataxin is dependent on the strength of the surrounding magnetic field and that functional frataxin facilitates phototactic behavior in N.lugens.
文摘The complexMn ￡¨C ￡±￡3 H ￡? N￡2OBr ￡(c)￡2￡¨C￡μH￡μN￡(c)2·3C5H5 N has been synthesized and characterized by X-Ray diffraction,IR and variable temperature(?10to ?￡2￡*￡?K￡(c)magnetic susceptibility￡(r)X-Ray dif fraction result for the single crystal shows that the crysta l belongs to monoclinic,space group P21￡ˉc￡?a￡1/2￡±￡(r)￡°￡1￡?￡1￡¨￡3￡(c)nm￡?b￡1/2￡2￡(r)￡°￡1￡°￡3￡¨￡μ￡(c)nm￡?c￡1/2￡2￡(r)￡°￡′￡?￡±￡¨￡?￡(c)nm￡?|?￡1/2￡1￡*￡(r)￡3￡?￡?￡¨￡?￡(c)￡?V￡1/2￡′￡(r)6&獭?￡¨￡2￡(c)nm￡3￡?Z ￡1/2￡′￡?Dc￡1/2￡±￡(r)47g·cm-3 。
