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In vivo whole-cell recording from the tectum of Xenopus tadpoles showed that repetitive dimming-light stimulation applied to the contralateral eye resulted in persistent enhancement of glutamatergic inputs, but not GABAergic or glycinergic inputs, on tectal neurons. This enhancement can be attributed to potentiation of retinotectal synapses.

在生体培养爪蟾蝌蚪四叠体中,以微暗的环境下激发对侧的的眼睛,可造成强烈激化麸胺酸型的突触传导,但却不激发胺基苯甲酸型与甘胺酸型的突触传导。

In the sonograms of Psittacula Agapornis after the section of right side NXIIts the ascending parts of the tone disappeared. This causes their vocalizations became the descendent-call.

牡丹鹦鹉在断右侧NXlltS后其声图中音调上升支消失,因而其叫声变为以降音调为主的降调叫声;在断左侧NXlltS后的声图中,其基本音以上的谐波成分减弱或消失而在断双侧神经后其声图表现为一系列具有较低基频的宽带谐波谱。

P-π conjugated polyamic acid was synthesized by the poly-condensation of benzoguanamine and pyromellitic dianhydride under microwave irradiation. Then PAA was grafted with different side-chain containing azobenzol groups through azo coupling reaction.

选取苯代三聚氰胺和均苯四酸二酐为单体进行微波辐射溶液聚合反应,所得的聚酰胺酸与对位取代基不同的苯胺重氮盐偶合接枝,从而合成了一系列新的具有三阶非线性光学活性的侧链型聚合物。

Photochromic reaction rate constant of G2 in CHCl3 and THF was 10-1 s-1, but that of photochromic side-chain polysiloxanes containing azophenyl moieties was 10-8 s-1, thus the photoresponsitive rate of the liquid crystalline dendrimer G2 is 107 times larger than that of the latter.

G2的光致变色反应速率常数的数量级为10-1 s-1,而含偶氮端基侧链聚硅氧烷的光致变色反应速率常数的数量级为10-8 s-1,因此,液晶树枝状大分子的光响应速率比后者快107倍。

For both series of heteroleptic tris rare earth compounds, the characteristic phthalocyanine dianion IR bands for Pc2- and O OPc2- at ca. 1329 and 1380 cm-1 attributed to the pyrrole stretching and the symmetric C-H bending of -CH3 groups in octyloxy side chains of OOPc rings together with some small contribution from the isoindole stretching vibrations,re specteively,are simultaneously found in their IR spectra.

在这两个不对称三明治型稀土配合物系列的红外光谱中发现了这样一种特性,即酞菁阴离子Pc~(2-)和OOPc~(2-)的特征波段在1329cm~(-1)和1380cm~(-1)之间,这是因为吡咯的伸缩振动和OOPc环中八烷氧基侧链上-CH_3基团的对称C-H的弯曲振动共同作用于吲哚环的伸缩振动。

Shearing force can induce molecular orientation with different mesomorphic behaviors at different temperature. Electric field induce biphenyl mesogens align parallel to the direction of applied electric field.

通过本论文的工作,阐述了含联苯液晶基元的硬主链型侧链液晶聚炔及其单体的结晶与液晶行为、结晶形貌和外场诱导的分子取向行为,为开发新型高性能材料提供必要的结构依据。

Leaves deciduous; petiole 3-4 cm, nearly glabrous; leaf blade ovate or ovate-oblong, 9-13 × ca. 8 cm, papery, abaxially densely rufous pubescent on veins, adaxially glabrous, base subcordate, margin doubly serrulate with adpressed acute teeth, 3-lobed; middle lobes triangular-ovate, apex acuminate; lateral lobes in upper part of blade, much shorter and apex acute.

叶脱落 叶柄3-4厘米,近无毛;叶片卵形的或卵状长圆形, 9-13 *长约8厘米,纸质,密被红棕色短柔毛在脉上,正面无毛,基部近心形,边缘重细锯齿具紧贴锐尖齿,3裂;三角状心形的中间裂片,先端渐尖;叶片的侧的裂片在上半部分,很多短和先端锐尖。

Leaves obovate or suborbicular, coarsely crenate; 3 connectives obliquely ascending, central connective erect, longer than lateral connectives; thecae at base of connectives

叶倒卵形的或近圆形,具粗圆齿; 3个连词斜升,中心的药隔直立,长于侧的药隔;连词的囊在基部 12 Chloranthus henryi 宽叶金粟兰

Nectar glands confluent, subtending bases of all stamens; median glands sometimes toothlike and free, rarely absent; lateral glands semiannular or annular.

蜜腺合流河,全部雄蕊的对着基部;有时的中间的腺体齿状和离生,很少无;侧的腺体semiannular或环状。

We adopt a similar discotic liquid crystalline synthesis way to synthesize target molecules 7, 11, 15, 19, 21 in this article. The target molecules have a central triphenylene core and different side chains including triphenylamine derivatives and carbazole molecules. We observe these molecules optical and electrochemical properties and the effect of hole-transport layers in organic light emitting diode.

本篇论文的研究主旨是采用类似盘状液晶的合成方式,以三伸苯作为分子的核心,藉由改变不同的三苯胺及咔唑醚基侧链来合成目标化合物7、11、15、19、21,并观察分子的光学性质变化,电化学行为,以及作为电洞传输材料在有机电激发光元件上的效果。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。