Objective To study the effects and the mechanisms of extract from a leguminous plant （Ammopiptanthus mongolicus cheng f.） （JAl ） in northwest China on inducing apoptosis and inhibiting proliferation of HepG2 hepat...Objective To study the effects and the mechanisms of extract from a leguminous plant （Ammopiptanthus mongolicus cheng f.） （JAl ） in northwest China on inducing apoptosis and inhibiting proliferation of HepG2 hepatocarcinoma cell in vitro. Methods The HepG2 cell line was used as target cells. The effect of 3A 1 on HepG2 cell growth was detected by microculture tetrazolium assay （MTr）, flow cytometry assay, DNA agarose gel electrophoresis and transmission electronic microscopy. The expressive effect of the wt-p53 in HepG2 cells was analyzed with p53 protein test-reagent. Results JAl not only had significant anti-proliferative effects depending upon time and dosage, but also induced apoptosis of HepG2 cells. Apoptotic typical morphological changes were observed in JAl-treated HepG2 cells under transmission electronic microscope, ＂Sub-G 1＂ phase peak occurred in flow cytometry and DNA ＂ladder＂ was found in DNA agarose gel electrophoresis. The expression of the wt-p53 increased in vitro, and 3Al-treated HepG2 and the positive cell percentage of the wt-p53 protein also increased. Conclusions JAl could obviously induce apoptosis and inhibit proliferation of HepG2 cells in vitro, and these effects are closely related with the increase of wt-p53 expression. JAl can be used as a good source of medicinal plant for the treatment of hepatocarcinoma.展开更多
This paper presents ambient noise analysis during rough weather, using time series measurements from an automated noise measurement system in the shallow southwest Bay of Bengal during October–November 2010. The peri...This paper presents ambient noise analysis during rough weather, using time series measurements from an automated noise measurement system in the shallow southwest Bay of Bengal during October–November 2010. The period witnessed low-pressure events including depressions and cyclones, with JAL cyclone passing close to the measurement site. The time series noise level shows a shift in mid-October, after which deep depressions and cyclones formed, with an average increase of 5–10 dB in the lower band and 2–3 dB in the higher band of frequencies. Furthermore, correlation between noise level and wave height(data from wave rider buoy deployed at the site) for sea state scale 3 and above shows good correlation with an increase in noise level with increase in wave height, the effect being most pronounced at 0.5 kHz. The noise captured during JAL was analysed to identify the spectrum components due to convective precipitation and heavy wind/wave activity and shows anomalously high levels during the crossing of the cyclone. Rain noise spectra from the rain bands associated with the wall of the cyclone are reported. This has been correlated with radar refl ectivity measurements to ascertain the presence of rain, and discriminate between convective and stratiform types. Also, vertical directionality pattern of ambient noise during JAL showed clearly distinct surface contributions. On the whole, knowledge of ambient noise fields during high sea states and precipitation is useful in optimizing SONAR performance. The findings at the study site have been compared with measurements from other shallow water locations during rough weather.展开更多
Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） for the natural sciences, sponsored by the Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences and Science...Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） for the natural sciences, sponsored by the Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences and Science Press. It is published by Science Press and Springer-Verlag Berlin Heidelberg bimonthly.展开更多
Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） for the natural sciences, sponsored by the Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Science Pr...Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） for the natural sciences, sponsored by the Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Science Press and China Society of Natural Resources. It is published by Science Press and Springer-Verlag Berlin Heidelberg bimonthly.展开更多
Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） in the natural sciences, sponsored by Xinjiang Institute of Ecology and Geography and Science Press of Chinese Academy of Scien...Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） in the natural sciences, sponsored by Xinjiang Institute of Ecology and Geography and Science Press of Chinese Academy of Sciences, and published by Science Press. JAL is a quarterly journal, issued on the third month in each quarter.展开更多
Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） in the natural sciences, sponsored by Xinjiang Institute of Ecology and Geography and Science Press of Chinese Academy of Scien...Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） in the natural sciences, sponsored by Xinjiang Institute of Ecology and Geography and Science Press of Chinese Academy of Sciences, and published by Science Press. JAL is a quarterly journal, issued on the third month in each quarter.展开更多
On July 15,2011,the editorial office of the Journal of Arid Land（JAL） received an e-mail transmitted through Prof.ZHU Cheng,the consultant of the Chinese Society of University Journals in Natural Sciences and the st...On July 15,2011,the editorial office of the Journal of Arid Land（JAL） received an e-mail transmitted through Prof.ZHU Cheng,the consultant of the Chinese Society of University Journals in Natural Sciences and the standing director of China Editology of Science Periodicals. The e-mail was sent by Mariana Boletta, the Senior Editor of Thomson Reuters, who said that JAL has been selected for coverage in Science Citation Index Expanded （SCIE）and Current Contents/Agriculture, Biology ＆ Environmental Sciences, beginning from the initial issue in 2009.展开更多
通讯晶片公司Nazomi Communications日前宣布Sony Ericsson，采用该公司的专利型Java平台加速处理器技术，以强化高阶行动电话中Java处理能力。Nazomi JA108与Sony Ericsson PDC平台的成功合作，证实该技术为最有效的解决方案，并可提供...通讯晶片公司Nazomi Communications日前宣布Sony Ericsson，采用该公司的专利型Java平台加速处理器技术，以强化高阶行动电话中Java处理能力。Nazomi JA108与Sony Ericsson PDC平台的成功合作，证实该技术为最有效的解决方案，并可提供Sony Ericsson PDC电话用户一优质且快速的Java使用环境。展开更多
基金This research was supported by the National Key Technologies R&D Program of China (No. 2001BA901A33)
文摘Objective To study the effects and the mechanisms of extract from a leguminous plant （Ammopiptanthus mongolicus cheng f.） （JAl ） in northwest China on inducing apoptosis and inhibiting proliferation of HepG2 hepatocarcinoma cell in vitro. Methods The HepG2 cell line was used as target cells. The effect of 3A 1 on HepG2 cell growth was detected by microculture tetrazolium assay （MTr）, flow cytometry assay, DNA agarose gel electrophoresis and transmission electronic microscopy. The expressive effect of the wt-p53 in HepG2 cells was analyzed with p53 protein test-reagent. Results JAl not only had significant anti-proliferative effects depending upon time and dosage, but also induced apoptosis of HepG2 cells. Apoptotic typical morphological changes were observed in JAl-treated HepG2 cells under transmission electronic microscope, ＂Sub-G 1＂ phase peak occurred in flow cytometry and DNA ＂ladder＂ was found in DNA agarose gel electrophoresis. The expression of the wt-p53 increased in vitro, and 3Al-treated HepG2 and the positive cell percentage of the wt-p53 protein also increased. Conclusions JAl could obviously induce apoptosis and inhibit proliferation of HepG2 cells in vitro, and these effects are closely related with the increase of wt-p53 expression. JAl can be used as a good source of medicinal plant for the treatment of hepatocarcinoma.
文摘This paper presents ambient noise analysis during rough weather, using time series measurements from an automated noise measurement system in the shallow southwest Bay of Bengal during October–November 2010. The period witnessed low-pressure events including depressions and cyclones, with JAL cyclone passing close to the measurement site. The time series noise level shows a shift in mid-October, after which deep depressions and cyclones formed, with an average increase of 5–10 dB in the lower band and 2–3 dB in the higher band of frequencies. Furthermore, correlation between noise level and wave height(data from wave rider buoy deployed at the site) for sea state scale 3 and above shows good correlation with an increase in noise level with increase in wave height, the effect being most pronounced at 0.5 kHz. The noise captured during JAL was analysed to identify the spectrum components due to convective precipitation and heavy wind/wave activity and shows anomalously high levels during the crossing of the cyclone. Rain noise spectra from the rain bands associated with the wall of the cyclone are reported. This has been correlated with radar refl ectivity measurements to ascertain the presence of rain, and discriminate between convective and stratiform types. Also, vertical directionality pattern of ambient noise during JAL showed clearly distinct surface contributions. On the whole, knowledge of ambient noise fields during high sea states and precipitation is useful in optimizing SONAR performance. The findings at the study site have been compared with measurements from other shallow water locations during rough weather.
文摘Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） for the natural sciences, sponsored by the Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences and Science Press. It is published by Science Press and Springer-Verlag Berlin Heidelberg bimonthly.
文摘Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） for the natural sciences, sponsored by the Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Science Press and China Society of Natural Resources. It is published by Science Press and Springer-Verlag Berlin Heidelberg bimonthly.
文摘Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） in the natural sciences, sponsored by Xinjiang Institute of Ecology and Geography and Science Press of Chinese Academy of Sciences, and published by Science Press. JAL is a quarterly journal, issued on the third month in each quarter.
文摘Journal of Arid Land （JAL） is an international journal （ISSN 1674-6767; CN 65-1278/K） in the natural sciences, sponsored by Xinjiang Institute of Ecology and Geography and Science Press of Chinese Academy of Sciences, and published by Science Press. JAL is a quarterly journal, issued on the third month in each quarter.
文摘On July 15,2011,the editorial office of the Journal of Arid Land（JAL） received an e-mail transmitted through Prof.ZHU Cheng,the consultant of the Chinese Society of University Journals in Natural Sciences and the standing director of China Editology of Science Periodicals. The e-mail was sent by Mariana Boletta, the Senior Editor of Thomson Reuters, who said that JAL has been selected for coverage in Science Citation Index Expanded （SCIE）and Current Contents/Agriculture, Biology ＆ Environmental Sciences, beginning from the initial issue in 2009.
文摘通讯晶片公司Nazomi Communications日前宣布Sony Ericsson，采用该公司的专利型Java平台加速处理器技术，以强化高阶行动电话中Java处理能力。Nazomi JA108与Sony Ericsson PDC平台的成功合作，证实该技术为最有效的解决方案，并可提供Sony Ericsson PDC电话用户一优质且快速的Java使用环境。
