OBJECTIVE:To establish the RP-HPLC method for determination of methyl hydroxybenzoate and ethyl hydroxybenzoate in oral liquid preparations METHODS:The Nova-Park C18 column(3 9mm×150mm,5μm)was used The mobile phase consisted of acetonitrile-water(25∶75)at a flow rate of 1ml/min,the detection wavelength was set at 254nm and the sensitivity was set at 0 01 AUFS RESULTS:The linear ranges of methyl hydroxybenzoate and ethyl hydroxybenzoate were 0 4 412～13 2 360μg/ml(r=0 9 999) and 0 6 672～20 0 160μg/m...

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Under stimulation of glutamic acid, [Ca2+]i in soma increased from 100 nM to 1 μM, and [Ca2+]i in spines increased from 50 nM to 300 nM. These results prove that monitoring calcium concentration in spine with Cameleon is feasible.

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It was found that the per centages of CD14+, HLA-DR+ and CD86+ cells and the relative intensity of fluorescence were significantly re-duced when the Mo/Mφ were treated with IVIG. Also, IVIG could inhibit the activation of the Mo/Mφ induced by GM-CSF and LPS.

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It will decrease when the pointing angle increases,and vice versa.By giving a pixel size of 20 μm for a detector,an orbit altitude of 600 km and a beam deflexion angle low than 30° for the imaging spectrometer, the effective focal length of the telescope was calculated(400,470 or 435 mm),and the relation curves between the relative ratios of ground resolution and the beam deflexions were presented.

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The numbers stand out in white from the black background, the indicators in the traditional red colour of BMW M GmbH are particularly clear and easy to monitor A special feature typical of a BMW M Car is the rev counter with its variable warning field informing the driver while the engine is warming up of the speed range currently available as a function of engine oil temperature.

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Monitored on the spot, the deformation characters of these supporting constructions are studied. Campared the calculation translocatins with the monitored translocations, the thesis believes that the translocation can be calculated by the method of "m", when the supporting structures produce small information. The translocation can be calculated by the mothod of "rigid frusta" or "the experiential expressions of shanghai area", when the supporting structures such as cement-soil wall in soft soil area produce big information.

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After operating for 80 days, the phase of acidification revealed a diameter of granular sludge up to 2～8 mm, a sludge concentration of 73.61 kg·m -3 , a gas-producing rate of 740.0 mL·g -3 COD removed , and a COD volume load...

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The optical dot gain results from basically the light scattering in substrates. In ink-jet printing the ink penetration changes the optics of the coating of the substrates including the light scattering coefficient and absorption coefficient. So it affects the optical dot gain greatly. The application of Kubelka-Munk Theory in halftones is also studied, and so an ink penetration model is established using K-M theory. The penetration depth and the scattering and absorption coefficients are decided.

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In the aspect of Adjustment of humidity and Heat-absorbing among these flowers, Begonia semperflorens showed much effect than others, and the value of heat-absorbing comes the biggest in July (the heat-absorbing value is 13804.53 kj.m-2.d-1), and the Colcus blumci Benth.

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The tetraploids of C.reticulata from the localities with the altitude of over 1800 m were gross-morphologically similar to the hexaploids, but those growing between 1100 ～1800 m were different to some extent from the hexaploids.

中海拔(1800m)以上的四倍體的云南山茶花外部形態(tài)特征與六倍體類型比較相似久久精品小视频，而低海拔(1100～1800 m)的四倍體類型的外部形態(tài)特征則有些不同桃色AV网站，但核形態(tài)結構是比較相似的。