In this paper, we are to report that the 4-dimethylamino azobenzene-4'-sulfonyl chloride (DABS-CI) can be directly synthesized by the reaction of 4-dimethylaminoazobenzene-4'-sulfonyle with phosphorus pentachl...In this paper, we are to report that the 4-dimethylamino azobenzene-4'-sulfonyl chloride (DABS-CI) can be directly synthesized by the reaction of 4-dimethylaminoazobenzene-4'-sulfonyle with phosphorus pentachloride, from which the yield is higher than from chlorosulfonation. (l) The experimental procedure is simple, and the quality and purity determined by I. R. spectra, X-ray diffraction reach, even surpass the same products by SERV A (German) in some respects.展开更多
[ Objective] To observe the expression of telomerase in antler of sika deer during growth stage and thus to provide a new line for revealing the mechanisms of development and regeneration of antlers. [Method] The upda...[ Objective] To observe the expression of telomerase in antler of sika deer during growth stage and thus to provide a new line for revealing the mechanisms of development and regeneration of antlers. [Method] The updated TRAP （Telomedc repeat amplification protocol） argentumdying method was used to detect the activity of telomerase in mesenchyme, precartilage, cartilage and ossification tissue of antler tip during the growth stage. Reverse transcription polymerase chain reaction （RT-PCR） was used to detect the expression of telomerase reverse transcriptase （TERT） in these cells. I-Result] The activity of telomerase was detected in the mesanchyme, precartilage and cartilage but not in the sclerotic tissue. The relative telomerase activity in the mesanchyme, precartilage and cartilage was 91.2, 46.4 and 13.7, respectively. In addition, the results of the expression of TERT gene also supported the detection result of telomerase activity. I-Conclmionl During growth phase, telomerase is expressed in multiplication area of deer antlers, and its activity decreases gradually with further differentiation of cells in antlers. Therefore, telomerase may play a key role in develoomant and rsoaneration of antlers.展开更多
The nonlineat third order optical susceptibility of C_(60) films on roughed glass plate has been studied by using a inode locked Nd:YAG laser emitting 8ps pulsed at 1.064 μm of 0.3 J energy.The large|χ^(3)(-3ω,ω,...The nonlineat third order optical susceptibility of C_(60) films on roughed glass plate has been studied by using a inode locked Nd:YAG laser emitting 8ps pulsed at 1.064 μm of 0.3 J energy.The large|χ^(3)(-3ω,ω,ω,ω)|=2 ×10^(-8) esu for C_(60) films of 15μm thickness has been observed,which is 1O^(3) larger than the value in the bulk C_(60).This is due to surface enhanced effect.展开更多
文摘In this paper, we are to report that the 4-dimethylamino azobenzene-4'-sulfonyl chloride (DABS-CI) can be directly synthesized by the reaction of 4-dimethylaminoazobenzene-4'-sulfonyle with phosphorus pentachloride, from which the yield is higher than from chlorosulfonation. (l) The experimental procedure is simple, and the quality and purity determined by I. R. spectra, X-ray diffraction reach, even surpass the same products by SERV A (German) in some respects.
基金funded by the Changchun Science and Technology Program (08KZ39)
文摘[ Objective] To observe the expression of telomerase in antler of sika deer during growth stage and thus to provide a new line for revealing the mechanisms of development and regeneration of antlers. [Method] The updated TRAP （Telomedc repeat amplification protocol） argentumdying method was used to detect the activity of telomerase in mesenchyme, precartilage, cartilage and ossification tissue of antler tip during the growth stage. Reverse transcription polymerase chain reaction （RT-PCR） was used to detect the expression of telomerase reverse transcriptase （TERT） in these cells. I-Result] The activity of telomerase was detected in the mesanchyme, precartilage and cartilage but not in the sclerotic tissue. The relative telomerase activity in the mesanchyme, precartilage and cartilage was 91.2, 46.4 and 13.7, respectively. In addition, the results of the expression of TERT gene also supported the detection result of telomerase activity. I-Conclmionl During growth phase, telomerase is expressed in multiplication area of deer antlers, and its activity decreases gradually with further differentiation of cells in antlers. Therefore, telomerase may play a key role in develoomant and rsoaneration of antlers.
基金Supported by the National Natuiil Science Foundation of China,S.F.of Zhejiang Province,P.R.C.and Doctoral Foundation of China.
文摘The nonlineat third order optical susceptibility of C_(60) films on roughed glass plate has been studied by using a inode locked Nd:YAG laser emitting 8ps pulsed at 1.064 μm of 0.3 J energy.The large|χ^(3)(-3ω,ω,ω,ω)|=2 ×10^(-8) esu for C_(60) films of 15μm thickness has been observed,which is 1O^(3) larger than the value in the bulk C_(60).This is due to surface enhanced effect.
