Objective:To investigate the larvicidal and repellent properties of essential oils from various parts of four plant species Cymbopogan citrates,Cinnamomum zeylanicum,Rosmarinus of ficinalis and Zingiber of ficinale ag...Objective:To investigate the larvicidal and repellent properties of essential oils from various parts of four plant species Cymbopogan citrates,Cinnamomum zeylanicum,Rosmarinus of ficinalis and Zingiber of ficinale against Culex tritaeniorhynchus（Cx.tritaeniorhynchus） and Anopheles subpictus（An.subpktus）.Methods:Essential oils were obtained by hydro-distillation method.The mosquitoes were reared in the vector control laboratory and twenty five late third ins tar larvae of Cx.tritaeniorhynchus and An.subpictus were exposed to based on the wide range and narrow range test,essential oil tested at various concentrations ranging from 25 to 250 ppm.The larval mortality was observed after 24 h under the laboratory conditions.The repellent efficacy was determined against two mosquito species at three concentrations viz., 1.0,2.5 and 5.0 mg/cm<sup>2</sup> under laboratory conditions.Results:Results showed all the four plant essential oil produced significant larval mortality against two mosquito species.However,the highest larvicidal activity was observed in the essential oil from Zingiber of ficinale against Cx. tritaeniorhynchus and An.subpktus with the LC<sub>50</sub> and LC<sub>90</sub> values as 98.83,57.98 ppm and 186.55, 104.23 ppm,respectively.All the four essential oil shows significant repellency against Cx. tritaeniorhynchus than An.subpktus.Among four essential oil tested the highest repellency was observed in Zingiber of ficinale,a higher concentration of 5.0 mg/cm<sup>2</sup> provided 100%protection up to 150 and 180 min against Cx.tritaeniorhynchus and An.subpktus,respectively.Conclusions: In this work,it can be concluded that four essential oils which were distilled from Cymbopogan citrates,Cinnamomum zeylanicum,Rosmarinus of ficinalis and Zingiber of ficinale showed promising larvicidal and repellent agent against Cx.tritaeniorhynchus and An.subpktus.展开更多
目的观察^(153)Sm-柠檬酸-羟基磷灰石(HA)滑膜切除术治疗类风湿关节炎(RA)持续性膝关节积液的疗效和安全性。方法常规抗风湿药物治疗无效的 RA 患者43例,共67个持续性积液的膝关节,行^(153)Sm-柠檬酸-HA 滑膜切除术,观察其疗效和不良反...目的观察^(153)Sm-柠檬酸-羟基磷灰石(HA)滑膜切除术治疗类风湿关节炎(RA)持续性膝关节积液的疗效和安全性。方法常规抗风湿药物治疗无效的 RA 患者43例,共67个持续性积液的膝关节,行^(153)Sm-柠檬酸-HA 滑膜切除术,观察其疗效和不良反应。结果注射后24 h 8例患者关节外放射性泄漏占注射总量的百分比均<1%。随访至治疗后3、6、12、24和36个月,总有效率分别为65.7%、85.1%、77.6%、64.2%和56.7%。随访至36个月时,治疗有效的关节复发率为33.3%。治疗有效的关节表现为肿痛缓解,积液量减少,滑膜厚度减小,关节功能活动改善。不良反应主要为一过性关节肿痛加重。结论 ^(153)Sm-柠檬酸-HA 滑膜切除术治疗 RA 持续性膝关节积液短期、中期疗效及安全性较好。展开更多
Post-infectional changes in sugars, ascorbic acid, protein, phenols, chlorophyll and carotene of two Cymbopogons viz., Cymbopogon martinii and Cymbopogon citratus due to leaf rust caused by Puccinia nakanishikii (Diet...Post-infectional changes in sugars, ascorbic acid, protein, phenols, chlorophyll and carotene of two Cymbopogons viz., Cymbopogon martinii and Cymbopogon citratus due to leaf rust caused by Puccinia nakanishikii (Diet) were investigated. All the biochemical constituents decreased in plants infected by the fungal pathogen.展开更多
A new process to synthesize polycrystalline samples of Sr14Cu24O41 was presented. Firstly, dry gel powder of Sr14Cu24O41 was synthesized by the citrates sol-gel method, using Sr（NO3）2, Cu（NO3）2, ethylene glycol an...A new process to synthesize polycrystalline samples of Sr14Cu24O41 was presented. Firstly, dry gel powder of Sr14Cu24O41 was synthesized by the citrates sol-gel method, using Sr（NO3）2, Cu（NO3）2, ethylene glycol and citrate acid as raw materials. Then, polycrystalline samples of Sr14Cu24O41 were prepared by solid-state reaction. Thermal Gravimetric and Differential Thermal Analysis（TG-DTA） showed that the temperature for solid-state reaction is at 942 ℃. The samples are identified to be single phase by X-ray Diffraction（XRD） and Scanning Electron Microscopy（SEM）. The SEM pictures showed that the first-step particles were at even size of about 100 nm by this technique. The electronic transport measurements showed that the doping compound were semiconductor with a crossover temperature T in the Arrhenius plot of the resistivity versus temprature.展开更多
文摘Objective:To investigate the larvicidal and repellent properties of essential oils from various parts of four plant species Cymbopogan citrates,Cinnamomum zeylanicum,Rosmarinus of ficinalis and Zingiber of ficinale against Culex tritaeniorhynchus（Cx.tritaeniorhynchus） and Anopheles subpictus（An.subpktus）.Methods:Essential oils were obtained by hydro-distillation method.The mosquitoes were reared in the vector control laboratory and twenty five late third ins tar larvae of Cx.tritaeniorhynchus and An.subpictus were exposed to based on the wide range and narrow range test,essential oil tested at various concentrations ranging from 25 to 250 ppm.The larval mortality was observed after 24 h under the laboratory conditions.The repellent efficacy was determined against two mosquito species at three concentrations viz., 1.0,2.5 and 5.0 mg/cm<sup>2</sup> under laboratory conditions.Results:Results showed all the four plant essential oil produced significant larval mortality against two mosquito species.However,the highest larvicidal activity was observed in the essential oil from Zingiber of ficinale against Cx. tritaeniorhynchus and An.subpktus with the LC<sub>50</sub> and LC<sub>90</sub> values as 98.83,57.98 ppm and 186.55, 104.23 ppm,respectively.All the four essential oil shows significant repellency against Cx. tritaeniorhynchus than An.subpktus.Among four essential oil tested the highest repellency was observed in Zingiber of ficinale,a higher concentration of 5.0 mg/cm<sup>2</sup> provided 100%protection up to 150 and 180 min against Cx.tritaeniorhynchus and An.subpktus,respectively.Conclusions: In this work,it can be concluded that four essential oils which were distilled from Cymbopogan citrates,Cinnamomum zeylanicum,Rosmarinus of ficinalis and Zingiber of ficinale showed promising larvicidal and repellent agent against Cx.tritaeniorhynchus and An.subpktus.
文摘目的观察^(153)Sm-柠檬酸-羟基磷灰石(HA)滑膜切除术治疗类风湿关节炎(RA)持续性膝关节积液的疗效和安全性。方法常规抗风湿药物治疗无效的 RA 患者43例,共67个持续性积液的膝关节,行^(153)Sm-柠檬酸-HA 滑膜切除术,观察其疗效和不良反应。结果注射后24 h 8例患者关节外放射性泄漏占注射总量的百分比均<1%。随访至治疗后3、6、12、24和36个月,总有效率分别为65.7%、85.1%、77.6%、64.2%和56.7%。随访至36个月时,治疗有效的关节复发率为33.3%。治疗有效的关节表现为肿痛缓解,积液量减少,滑膜厚度减小,关节功能活动改善。不良反应主要为一过性关节肿痛加重。结论 ^(153)Sm-柠檬酸-HA 滑膜切除术治疗 RA 持续性膝关节积液短期、中期疗效及安全性较好。
文摘Post-infectional changes in sugars, ascorbic acid, protein, phenols, chlorophyll and carotene of two Cymbopogons viz., Cymbopogon martinii and Cymbopogon citratus due to leaf rust caused by Puccinia nakanishikii (Diet) were investigated. All the biochemical constituents decreased in plants infected by the fungal pathogen.
基金the National Natural Science Foundation of China(No.10474074)State Key Laboratory of Advanced Technology for Materials Synthesis and Processing(Wuhan University of Technology)(No.WUT 2004 M03)
文摘A new process to synthesize polycrystalline samples of Sr14Cu24O41 was presented. Firstly, dry gel powder of Sr14Cu24O41 was synthesized by the citrates sol-gel method, using Sr（NO3）2, Cu（NO3）2, ethylene glycol and citrate acid as raw materials. Then, polycrystalline samples of Sr14Cu24O41 were prepared by solid-state reaction. Thermal Gravimetric and Differential Thermal Analysis（TG-DTA） showed that the temperature for solid-state reaction is at 942 ℃. The samples are identified to be single phase by X-ray Diffraction（XRD） and Scanning Electron Microscopy（SEM）. The SEM pictures showed that the first-step particles were at even size of about 100 nm by this technique. The electronic transport measurements showed that the doping compound were semiconductor with a crossover temperature T in the Arrhenius plot of the resistivity versus temprature.
