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Chd protein is able to dorsalize mesoderm and to neuralize ectoderm in Xenopus gastrula explants at 1 nM.

Chd蛋白质可以使中胚叶背部化，也可以背化1海哩的爪蟾肠胚外植体里面的外胚层。

The study on effective gain cross section shows that there is a flat gain shape between 1530～1580 nm, which proves that the wide-band property of the glass is much better than that of phosphate glasses.

对反映宽带性能的有效增益截面的研究表明，该镱铒共掺氟磷酸盐玻璃在1530～1580 nm之间有一平坦的有效增益截面谱线，证明其宽带特性明显优于掺铒磷酸盐玻璃。

The analysis indicates that only SWNTs with diameters larger than about 1.5 nm can be modeled as isotropic thin shell model with constant thickness and elastic moduli.

结果表明只有直径约大于1.5 nm 的单壁管，可以用常厚度、常弹性模量的各向同性超薄壳模型。

The photodegradation of organometallic compounds in aqueous solution was studied using a microwave electrodeless UV lamp(irradiating mainly 206 nm UV).

整个研究以期为206 nm紫外光降解有机废水的应用提供依据，并为污水深度处理和饮用水的深度净化提供技术支持。

Carbon nanotubes were formed electrolytically in the LiCl melt with the diameters in the range of 75~100 nm, but β-Sn-filled carbon nanotubes were generated in molten LiCl+1.0%SnCl2 mixtures.

在 LiCl 熔盐中可得到直径为75~100 nm 的纳米碳管；在 LiCl+1.0 %SnCl2熔盐中可生成β-Sn 填充的纳米碳管。

The luminescence properties were investigated with PL and PLE spectra.Emission peaks were at about 450 nm.This emission was ascribed to the recombination between the sulfur vacancy-related electron trap donor having an energy level just below the conduction band and the Ag-related hole trap acceptor above the valence band.

通过发射光谱和激发光谱对产品的光学性质进行研究，发射峰位于450 nm左右，归属于硫空位相关的电子陷阱施主和银相关的空穴陷阱受主的复合；激发峰位于333 nm左右，归属于ZnS基质的带边吸收。

An excitation band at 218 nm is also observed in the excitation spectra, which corresponds to the electron transition from the ground state to the conduction band.

在其激发光谱中观测到218 nm的激发峰，这归属于电子从Mn2+基态到导带的电荷转移跃迁所致。

The calculation results show that the Nd3+ and Th4+ would occupy the Pb sites near , and restrict the 420 nm absorption band by compensating the electronegative charges of .

计算结果表明， Nd3+和Th4+将占据PWO晶体中周围的Pb位，对的电荷补偿抑制了PWO晶体中420nm吸收带。

Results: The prepared AmB-PBCA nanoparticle had a regular spherical or elliptic surface, with a mean diameter of (69.01±28.56) nm. The curve of standard AmB was linear within the range of 1.12-5.60μg/ml: D405=0.1634c+0.0066 (r=0.9993). The average recovery of AmB-PBCA-NP was 99.93%, showing the solution of AmB-PBCA-NP was stable within 12 h. The nanoparticles showed a sustained drug release in vitro within 24 h. The optimized recipe was: DextranT-70 stabilizer without sodium deoxycholate, with a mean encapsulation rate of 56.10% and a drug loading rate of 82%.

结果：制备的AmB-PBCA-NP外观呈圆或类圆形，平均粒径(69.01±28.56)nm，分散均匀；AmB标准品在1.12~5.60μg/ml范围内的线性回归方程为：D405=0.1634c+0.0066，r=0.9993，AmB-PBCA-NP的平均回收率为99.93%，其溶液在12h内稳定性较好；体外释放实验表明24h体外释放具有一定的缓释性；实验发现最优化的处方为稳定剂采用DextranT-70，且不加助溶剂脱氧胆酸钠，其包封率及载药量均比较高，分别为56.10%、82%。

Methods The influence factors of pretreatment conditions were studied by orthogonal test according to the content of toluene and naphthalene in the eluate and its UV absorbance(254 nm).

方法采用正交试验设计以洗脱液中甲苯、萘的量及其紫外吸收值为指标(254 nm)，考察了D-101型大孔吸附树脂预处理过程中的影响因素。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"