Gracilaria lemaneiformis Bory is an economically important alga that is primarily used for agar production.Although tetraspores are ideal seeds for the cultivation of G.lemaneiformis,the most popular culture method is...Gracilaria lemaneiformis Bory is an economically important alga that is primarily used for agar production.Although tetraspores are ideal seeds for the cultivation of G.lemaneiformis,the most popular culture method is currently based on vegetative fragments,which is labor-intensive and time-consuming.In this study,we optimized the conditions for tetraspore release and evaluated the photosynthetic activities of different colonies formed from the branches of G.lemaneiformis using a PAM(pulse-amplitude-modulated) measuring system.The results showed that variations in temperature and salinityhad significant effects on tetraspore yield.However,variations in the photon flux density(from 15 μmol m-2 s-1 to 480 μmol m-2 s-1) had no apparent effect on tetraspore yield.Moreover,the PAM-parameters Y(I),Y(Ⅱ),ETR(I),ETR(Ⅱ) and Fv/Fm of colonies formed from different branches showed the same trend:parameter values of first generation branches>second generation branches>third generation branches.These results suggest that the photosynthetic activities of different colonies of branches changed with the same trend.Furthermore,photosynthesis in G.lemaneiformis was found to be involved in vegetative reproduction and tetraspore formation.Finally,the first generation branches grew slowly,but accumulated organic compounds to form large numbers of tetraspores.Taken together,these results showed that the first generation branches are ideal materials for the release of tetraspores.展开更多
Inflammatory Bowel Disease （IBD） was a chronic inflammatory disease of the digestive tract especially in small and large intestines that induced by indomethacin. Potency of ethanol and ethyl acetate extract from bro...Inflammatory Bowel Disease （IBD） was a chronic inflammatory disease of the digestive tract especially in small and large intestines that induced by indomethacin. Potency of ethanol and ethyl acetate extract from brown seaweed （Sargassum duplicatum Bory） against indomethacin induced jejunum damage was evaluated in Rattus norvegicus. Control rats induced by corn oil orally. IBD rats induced by indomethacin of 15 mg/kg body weight （bw） orally and incubated for 7 days. Therapy rats were treated orally by brown seaweed extract of 100 mg/kg bw respectively for seven days. Based on phytochemistry test, Sargassum duplicatum Bory extract contains flavonoids, phlorotanin, and alkaloid. The result of preparative Thin Layer Chromatography （TLC） and Infra Red （IR） spectrum of extract spots showed the same result （function group similarity） with gallic acid standard as polyphenol. Sargassum duplicatum Bory extract decreased Malondialdehid （MDA） level （54.20%） significantly using Thiobarbituric Acid （TBA） assay, repaired ZO-1 and occludin protein expressions by immunohistochemistry and repaired jejunum damage by histological observation.展开更多
英国启动“伦敦东城”超大型规划项目2015年10月12日晚,英国伦敦市长鲍里斯·约翰逊（Boris Johnson）在“新伦敦建筑”总部晚会上,宣布启动超大型城市更新规划项目——伦敦东城（City of East London）。该规划将作为一个发展框架...英国启动“伦敦东城”超大型规划项目2015年10月12日晚,英国伦敦市长鲍里斯·约翰逊（Boris Johnson）在“新伦敦建筑”总部晚会上,宣布启动超大型城市更新规划项目——伦敦东城（City of East London）。该规划将作为一个发展框架,成为大伦敦各地方政府法定规划政策中的一部分,以帮助他们在辖区内选定优先开发的区域。展开更多
1916年12月10日,法国社会党的一位普通党员鲍里斯·苏瓦林（Boris Souvarine）在法国社会党报纸《人民报》（Le journal populaire）上刊登了一篇题为《致我们在瑞士的朋友们》（A nos amis qui sont en Suisse）的公开信。1917年1...1916年12月10日,法国社会党的一位普通党员鲍里斯·苏瓦林（Boris Souvarine）在法国社会党报纸《人民报》（Le journal populaire）上刊登了一篇题为《致我们在瑞士的朋友们》（A nos amis qui sont en Suisse）的公开信。1917年1月,列宁也以公开信的方式写了一封回信。由于法国书报检查机关的的干预,本已排入法国另一家社会党报纸《真理报》（La verite）1918年1月24日的列宁回信未能见报,报纸当天开天窗出版。史称《真理报》开天窗事件。展开更多
在世界卫生组织疾病统计中,肿瘤的发生率和病死率均很高,肿瘤的诊断和治疗已成为当今医学研究的热点和难点。肿瘤细胞中特异和异常表达的因子是肿瘤诊疗的潜在靶标。肿瘤睾丸抗原(cancer-testis antigen,CTA)印记位点调节物兄弟因子(the...在世界卫生组织疾病统计中,肿瘤的发生率和病死率均很高,肿瘤的诊断和治疗已成为当今医学研究的热点和难点。肿瘤细胞中特异和异常表达的因子是肿瘤诊疗的潜在靶标。肿瘤睾丸抗原(cancer-testis antigen,CTA)印记位点调节物兄弟因子(the brother of the regulator of imprinted sites,BORIS)在多种肿瘤组织中特异性高表达,与肿瘤发生、发展以及恶性程度密切相关。BORIS通过调节启动子区域的甲基化水平影响原癌基因c MYC、乳腺癌基因BRCA1等下游靶基因的表达,改变肿瘤细胞生物学活性和分化干性,促进肿瘤细胞的增殖、转移、侵袭。本文综述了BORIS在癌症发生、发展中的作用,阐述了BORIS在癌症诊疗中的研究价值和应用前景。展开更多
The European Community’s Single Market plan to chop down many barriers to free trade and movement of people became effective on January 1 after seven years of hard bargaining between the 12 member states. After 74 ye...The European Community’s Single Market plan to chop down many barriers to free trade and movement of people became effective on January 1 after seven years of hard bargaining between the 12 member states. After 74 years under the umbrella of a federation created from the ruins of the Austro-Hungarian Empire, 10 million Czechs and five million Slovaks became citizens of separate countries from January 1, 1993. Russian President Boris Yeltsin and US President George Bush signed the START-Ⅱ arms reduc-展开更多
作为一个存在之实体的俄罗斯音乐理论思想,在西方几乎还不为人知。《新格罗夫》词典关于“分析”和“理论,理论家”的条目中没有提到俄罗斯的理论家们,仅在所附文献书目中,各列入了一部著作:阿萨菲耶夫(Boris Asaf’yev)的《作为过程的...作为一个存在之实体的俄罗斯音乐理论思想,在西方几乎还不为人知。《新格罗夫》词典关于“分析”和“理论,理论家”的条目中没有提到俄罗斯的理论家们,仅在所附文献书目中,各列入了一部著作:阿萨菲耶夫(Boris Asaf’yev)的《作为过程的曲式》(Musical Formas Pro-cess)及其续篇《音调》(Intonation)(莫斯科,1930,1947),和丘林(YuryTiulin)的专论《二十世纪音乐的理论问题》(TheoreticalProblems of 20th-century Music,莫斯科,1967);在“分析”条目中还有马泽尔(LevMazel)1967发表的德文论文《艺术与文学》(Kunst und Literatur)。许多人都知道,柴科夫斯基写过一本和声教科书,塔涅耶夫写过一本内容丰富的对位法;懂俄文的读者在苏联的音乐学和评论著作中会见到过“音调”这个词。展开更多
基金Supported by the National Natural Science Foundation of China(No.30830015)the National Key Technology Research and Development Program of the 11th Five-Year Plan(No.2006BAD09A04)the National High Technology Research and Development Program of China(863Program,Nos.2006AA10A402,2007AA09Z406,2006AA05Z112,2006AA10A413)
文摘Gracilaria lemaneiformis Bory is an economically important alga that is primarily used for agar production.Although tetraspores are ideal seeds for the cultivation of G.lemaneiformis,the most popular culture method is currently based on vegetative fragments,which is labor-intensive and time-consuming.In this study,we optimized the conditions for tetraspore release and evaluated the photosynthetic activities of different colonies formed from the branches of G.lemaneiformis using a PAM(pulse-amplitude-modulated) measuring system.The results showed that variations in temperature and salinityhad significant effects on tetraspore yield.However,variations in the photon flux density(from 15 μmol m-2 s-1 to 480 μmol m-2 s-1) had no apparent effect on tetraspore yield.Moreover,the PAM-parameters Y(I),Y(Ⅱ),ETR(I),ETR(Ⅱ) and Fv/Fm of colonies formed from different branches showed the same trend:parameter values of first generation branches>second generation branches>third generation branches.These results suggest that the photosynthetic activities of different colonies of branches changed with the same trend.Furthermore,photosynthesis in G.lemaneiformis was found to be involved in vegetative reproduction and tetraspore formation.Finally,the first generation branches grew slowly,but accumulated organic compounds to form large numbers of tetraspores.Taken together,these results showed that the first generation branches are ideal materials for the release of tetraspores.
文摘Inflammatory Bowel Disease （IBD） was a chronic inflammatory disease of the digestive tract especially in small and large intestines that induced by indomethacin. Potency of ethanol and ethyl acetate extract from brown seaweed （Sargassum duplicatum Bory） against indomethacin induced jejunum damage was evaluated in Rattus norvegicus. Control rats induced by corn oil orally. IBD rats induced by indomethacin of 15 mg/kg body weight （bw） orally and incubated for 7 days. Therapy rats were treated orally by brown seaweed extract of 100 mg/kg bw respectively for seven days. Based on phytochemistry test, Sargassum duplicatum Bory extract contains flavonoids, phlorotanin, and alkaloid. The result of preparative Thin Layer Chromatography （TLC） and Infra Red （IR） spectrum of extract spots showed the same result （function group similarity） with gallic acid standard as polyphenol. Sargassum duplicatum Bory extract decreased Malondialdehid （MDA） level （54.20%） significantly using Thiobarbituric Acid （TBA） assay, repaired ZO-1 and occludin protein expressions by immunohistochemistry and repaired jejunum damage by histological observation.
文摘英国启动“伦敦东城”超大型规划项目2015年10月12日晚,英国伦敦市长鲍里斯·约翰逊（Boris Johnson）在“新伦敦建筑”总部晚会上,宣布启动超大型城市更新规划项目——伦敦东城（City of East London）。该规划将作为一个发展框架,成为大伦敦各地方政府法定规划政策中的一部分,以帮助他们在辖区内选定优先开发的区域。
文摘1916年12月10日,法国社会党的一位普通党员鲍里斯·苏瓦林（Boris Souvarine）在法国社会党报纸《人民报》（Le journal populaire）上刊登了一篇题为《致我们在瑞士的朋友们》（A nos amis qui sont en Suisse）的公开信。1917年1月,列宁也以公开信的方式写了一封回信。由于法国书报检查机关的的干预,本已排入法国另一家社会党报纸《真理报》（La verite）1918年1月24日的列宁回信未能见报,报纸当天开天窗出版。史称《真理报》开天窗事件。
文摘在世界卫生组织疾病统计中,肿瘤的发生率和病死率均很高,肿瘤的诊断和治疗已成为当今医学研究的热点和难点。肿瘤细胞中特异和异常表达的因子是肿瘤诊疗的潜在靶标。肿瘤睾丸抗原(cancer-testis antigen,CTA)印记位点调节物兄弟因子(the brother of the regulator of imprinted sites,BORIS)在多种肿瘤组织中特异性高表达,与肿瘤发生、发展以及恶性程度密切相关。BORIS通过调节启动子区域的甲基化水平影响原癌基因c MYC、乳腺癌基因BRCA1等下游靶基因的表达,改变肿瘤细胞生物学活性和分化干性,促进肿瘤细胞的增殖、转移、侵袭。本文综述了BORIS在癌症发生、发展中的作用,阐述了BORIS在癌症诊疗中的研究价值和应用前景。
文摘The European Community’s Single Market plan to chop down many barriers to free trade and movement of people became effective on January 1 after seven years of hard bargaining between the 12 member states. After 74 years under the umbrella of a federation created from the ruins of the Austro-Hungarian Empire, 10 million Czechs and five million Slovaks became citizens of separate countries from January 1, 1993. Russian President Boris Yeltsin and US President George Bush signed the START-Ⅱ arms reduc-
文摘作为一个存在之实体的俄罗斯音乐理论思想,在西方几乎还不为人知。《新格罗夫》词典关于“分析”和“理论,理论家”的条目中没有提到俄罗斯的理论家们,仅在所附文献书目中,各列入了一部著作:阿萨菲耶夫(Boris Asaf’yev)的《作为过程的曲式》(Musical Formas Pro-cess)及其续篇《音调》(Intonation)(莫斯科,1930,1947),和丘林(YuryTiulin)的专论《二十世纪音乐的理论问题》(TheoreticalProblems of 20th-century Music,莫斯科,1967);在“分析”条目中还有马泽尔(LevMazel)1967发表的德文论文《艺术与文学》(Kunst und Literatur)。许多人都知道,柴科夫斯基写过一本和声教科书,塔涅耶夫写过一本内容丰富的对位法;懂俄文的读者在苏联的音乐学和评论著作中会见到过“音调”这个词。
