La1-x Sr, MnO3 （ x ides were prepared through =0, 0.2, 0.4, 0.6） oxsol-gel method with even crystalline size 70 nm, complex permittivity and permeability behavior dependence on Sr contents in the range of 50 - 1800 ...La1-x Sr, MnO3 （ x ides were prepared through =0, 0.2, 0.4, 0.6） oxsol-gel method with even crystalline size 70 nm, complex permittivity and permeability behavior dependence on Sr contents in the range of 50 - 1800 MHz were discussed. When x = 0, for LaMnO3 oxide, the complex permeability keeps a constant number, μ＇τ≌ 0.8, μ＂τ ≌ 1.0 in the frequency range of 50 - 1800 MHz; the complex permittivity decreases as frequency increases, the ε＇τ decreases from 33 to 19 and the ε＂τ decreases from 65 to 5.展开更多
目的:探讨窄谱中波紫外线(NB-UVB)联合点阵激光治疗难治性白癜风患者的疗效及安全性。方法:选取2017年1月-2019年1月在笔者医院就诊的120例难治性白癜风患者纳入研究,选择患者的独立皮损处给予治疗,随机分为两组。实验组:60例,选择NB-UV...目的:探讨窄谱中波紫外线(NB-UVB)联合点阵激光治疗难治性白癜风患者的疗效及安全性。方法:选取2017年1月-2019年1月在笔者医院就诊的120例难治性白癜风患者纳入研究,选择患者的独立皮损处给予治疗,随机分为两组。实验组:60例,选择NB-UVB联合点阵激光治疗;对照组:60例,给予NB-UVB进行治疗。比较两组治疗后的临床疗效及安全性。结果:6个月治疗结束后,实验组治疗有效率86.67%,高于对照组的66.67%。治疗后1、3、6个月,实验组的患者总体评分(Investigator's global assessment,IGA)明显高于对照组(P<0.05)。治疗后,实验组皮损面积小于对照组,平均复色面积大于对照组(P<0.05);实验组皮损修复时间(1.67±0.27)个月,明显低于对照组的(2.02±0.59)个月,有显著性差异,具有统计学意义(P<0.05)。实验组不良反应发生率低于对照组(P<0.05)。结论:NB-UVB联合点阵激光治疗难治性白癜风可提高患者的治疗有效率和IGA评分,治疗过程安全且不良反应少。展开更多
The toxic effects to microorganism induced by nanomaterials have received considerable attentions in the past decades [1]. Herein, two diverse nanomaterials i.e. multi-walled carbon nanotubes (MWCNTs) and mesoporous s...The toxic effects to microorganism induced by nanomaterials have received considerable attentions in the past decades [1]. Herein, two diverse nanomaterials i.e. multi-walled carbon nanotubes (MWCNTs) and mesoporous silica nanospheres (MSNs) were prepared to investigate their deleterious effects on Caenorhabditis. elegans (C. elegans)[2-3]. As shown in Figure 1A, histidine functionalized MWCNTs (his-MWCNTs) were in length of ~500 nm with outer diameter ~20 nm, while fluorescein isothiocyanate dyed MSNs (FITC-MSNs) were in an average diameter of ~70 nm (Figure 1B). Microscopic images display his-MWCNTs having been ingested into intestine of C. elegans after co-incubation for 2 h, as arrowed in Figure 1C and 1E. In contrast, no MSNs were observed to be ingested after co-incubating in the same liquid medium. However, fluorescence microscopic images (Figure 1D and 1F) demonstrate that FITC-MSNs could be ingested by C. elegans after co-incubation for 24 h or longer time via seeding Kingagar plates with FITC-MSNs.展开更多
文摘La1-x Sr, MnO3 （ x ides were prepared through =0, 0.2, 0.4, 0.6） oxsol-gel method with even crystalline size 70 nm, complex permittivity and permeability behavior dependence on Sr contents in the range of 50 - 1800 MHz were discussed. When x = 0, for LaMnO3 oxide, the complex permeability keeps a constant number, μ＇τ≌ 0.8, μ＂τ ≌ 1.0 in the frequency range of 50 - 1800 MHz; the complex permittivity decreases as frequency increases, the ε＇τ decreases from 33 to 19 and the ε＂τ decreases from 65 to 5.
文摘目的:探讨窄谱中波紫外线(NB-UVB)联合点阵激光治疗难治性白癜风患者的疗效及安全性。方法:选取2017年1月-2019年1月在笔者医院就诊的120例难治性白癜风患者纳入研究,选择患者的独立皮损处给予治疗,随机分为两组。实验组:60例,选择NB-UVB联合点阵激光治疗;对照组:60例,给予NB-UVB进行治疗。比较两组治疗后的临床疗效及安全性。结果:6个月治疗结束后,实验组治疗有效率86.67%,高于对照组的66.67%。治疗后1、3、6个月,实验组的患者总体评分(Investigator's global assessment,IGA)明显高于对照组(P<0.05)。治疗后,实验组皮损面积小于对照组,平均复色面积大于对照组(P<0.05);实验组皮损修复时间(1.67±0.27)个月,明显低于对照组的(2.02±0.59)个月,有显著性差异,具有统计学意义(P<0.05)。实验组不良反应发生率低于对照组(P<0.05)。结论:NB-UVB联合点阵激光治疗难治性白癜风可提高患者的治疗有效率和IGA评分,治疗过程安全且不良反应少。
文摘The toxic effects to microorganism induced by nanomaterials have received considerable attentions in the past decades [1]. Herein, two diverse nanomaterials i.e. multi-walled carbon nanotubes (MWCNTs) and mesoporous silica nanospheres (MSNs) were prepared to investigate their deleterious effects on Caenorhabditis. elegans (C. elegans)[2-3]. As shown in Figure 1A, histidine functionalized MWCNTs (his-MWCNTs) were in length of ~500 nm with outer diameter ~20 nm, while fluorescein isothiocyanate dyed MSNs (FITC-MSNs) were in an average diameter of ~70 nm (Figure 1B). Microscopic images display his-MWCNTs having been ingested into intestine of C. elegans after co-incubation for 2 h, as arrowed in Figure 1C and 1E. In contrast, no MSNs were observed to be ingested after co-incubating in the same liquid medium. However, fluorescence microscopic images (Figure 1D and 1F) demonstrate that FITC-MSNs could be ingested by C. elegans after co-incubation for 24 h or longer time via seeding Kingagar plates with FITC-MSNs.
