Acrochaete leptochaete （Huber） Nielsen （Chaetophoraceae, Chlorophyta） was isolated from the macroalgae Chaetomorpha collected from intertidal pools in Rongcheng, Shandong, China. 18S rDNA combined with ITS regions...Acrochaete leptochaete （Huber） Nielsen （Chaetophoraceae, Chlorophyta） was isolated from the macroalgae Chaetomorpha collected from intertidal pools in Rongcheng, Shandong, China. 18S rDNA combined with ITS regions were used to ascertain the morphological identification of the isolated material. Based on the unialgal culture, asexual reproduction and growth characteristics of A. leptochaete were investigated over wide ranges of temperature and irradiance. Results revealed that asexual reproduction of A. leptochaete could be realized by biflagellate zoospores. The zoospores germinated directly to give self- replicating generations. Zoospore germination was bipolar. A temperature range from 13-21 ℃ and a lower irradiance of 36 μmol/（m2.s） were most favorable for the growth ofA. leptochaete. Thallus organization, an important taxonomic criterion for the genus Acrochaete, was affected markedly by temperature and irradiance. Our results extend the knowledge about the species＇ general biology and its morphological plasticity. For classification and identification of a simple microphytic algae like A. leptochaete, which are traditionally placed in the class Chaetophoraceae, we propose that molecular tools associated with culture observations are applied.展开更多
With the rapid development of information networks and the overall development of e-commerce, online marketing has continued to assault the traditional business marketing model and methods of operation, and it makes g...With the rapid development of information networks and the overall development of e-commerce, online marketing has continued to assault the traditional business marketing model and methods of operation, and it makes great effects on existing business concepts and ideas from different angles and levels. For these weaker small and medium-sized enterprises, network marketing with its low cost, wide range of applications, the effect of strong natural advantages becomes marketing approach of small and medium-sized enterprises which they can hold up and afford, which also provides unprecedented opportunity for small and medium-sized enterprises to have the opportunity to compete with large-scale enterprises on the same stage.展开更多
This paper is built on the study of one key blog-Wang Xiaofeng＇s No Guess （2006-2011） to explore how a Chinese intellectual uses his satirical skills in the blogosphere, how his blog reshapes the form of political ...This paper is built on the study of one key blog-Wang Xiaofeng＇s No Guess （2006-2011） to explore how a Chinese intellectual uses his satirical skills in the blogosphere, how his blog reshapes the form of political culture, and how the blogosphere through such interventions proceeds in the development of political communications in China. Two key issues are addressed in the paper. Firstly, drawing on the concept of ＂blogging culture＂, the author argues that blogging has potentially reconfigured political information around people＇s everyday lives, offering alternative modes of ＂public talk＂. The case of Wang Xiaofeng shows that satire can be used to make fun of the state, policies, and established ideologies, improving a previously restricted communicative environment toward more open. Secondly, the rise in the value placed on individualism in China, and the rise of peer-to-peer media mean that bloggers who pursue self-expression simultaneously through such self-expression. In other words, Wang Xiaofeng＇s No Guess blog demonstrates that individual opinions across the blogosphere have implicitly challenged political discourse; however, they always have to struggle with an ongoing censorship, negotiate an unstable discursive space and thus, can only enjoy a limited success.展开更多
In this study, we made references to past literatures and developed an e-learning training program for CSL （Chinese as a Second Language） teachers. The class was held from July to August, 2010, in Chinese Culture Un...In this study, we made references to past literatures and developed an e-learning training program for CSL （Chinese as a Second Language） teachers. The class was held from July to August, 2010, in Chinese Culture University （Taiwan）, and we designed a performance-evaluation questionnaire with the Delphi method. Three months after the training program was completed, the questionnaire was given to the 30 students of the class, and they were asked to answer questions regarding their use of e-learning in the actual practice. We also asked 5 teachers to conduct experimental e-learning for us to video-record and observe. This effort allows us to discuss the use of e-learning among CSL teachers in Taiwan, come up with a conclusion and suggestions, and use the findings as references for course-planning and policies or research regarding the digital learning of Chinese.展开更多
OBJECTIVE:To develop Clinical practice s of Traditional Chinese Medicine(TCM) for acute upper respiratory tract infection(AURI) in children;TCM is usedalone or administered together with antibiotics.METHODS:Under the ...OBJECTIVE:To develop Clinical practice s of Traditional Chinese Medicine(TCM) for acute upper respiratory tract infection(AURI) in children;TCM is usedalone or administered together with antibiotics.METHODS:Under the guidance of evidence-based medicine concept,in strict accordance with the rules of international s development,as well as on the basis of evidence of clinical research of TCM,the s solicited opinions from clinical experts and methodologists in TCM and Western Medicine.GRADE standard was applied to form experts' consensus.RESULTS:The s standardized classification of TCM patterns and TCM treatments in children with AURI,including prescription,Chinese patent medicine,non-drug treatment and prevention.CONCLUSION:Follows the principle of "evidence based,consensus supplemented,and experience referred",these s were formulated,but the quality of evidence of included studies were relatively low.Further refinement of the s should be needed as deeper clinical studies as available in future.展开更多
The rapid endothelialization of tissue-engineered blood vessels(TEBVs) can effectively prevent thrombosis and inhibit intimal hyperplasia. The traditional Chinese medicine ingredient icariin is highly promising for th...The rapid endothelialization of tissue-engineered blood vessels(TEBVs) can effectively prevent thrombosis and inhibit intimal hyperplasia. The traditional Chinese medicine ingredient icariin is highly promising for the treatment of cardiovascular diseases.β-cyclodextrin sulfate is a type of hollow molecule that has good biocompatibility and anticoagulation properties and exhibits a sustained release of icariin. We studied whether icariin-loaded β-cyclodextrin sulfate can promote the endothelialization of TEBVs. The experimental results showed that icariin could significantly promote the proliferation and migration of endothelial progenitor cells; at the same time, icariin could promote the migration of rat vascular endothelial cells(RAVECs). Subsequently,we used an electrostatic force to modify the surface of the TEBVs with icariin-loaded β-cyclodextrin sulfate, and these vessels were implanted into the rat common carotid artery. After 3 months, micro-CT results showed that the TEBVs modified using icariin-loaded β-cyclodextrin sulfate had a greater patency rate. Scanning electron microscopy(SEM) and CD31 immunofluorescence results showed a better degree of endothelialization. Taken together, icariin-loaded β-cyclodextrin sulfate can achieve anticoagulation and rapid endothelialization of TEBVs to ensure their long-term patency.展开更多
During 1970s, the residential remains of the Yangshao Period were discovered at the Dadiwan site in Qin＇an County, Gansu Province, China. With carbon-14 dating, scanning electron microscope （SEM）, thermal expansion...During 1970s, the residential remains of the Yangshao Period were discovered at the Dadiwan site in Qin＇an County, Gansu Province, China. With carbon-14 dating, scanning electron microscope （SEM）, thermal expansion analyzer, polarizing microscope （PLM）, and X ray diffraction （XRD）, the microstructures and chemical compositions of the pottery shard, floor materials of the housing site, kunkur, calcined kunkur, ginger nut （calcium concretion） from the Dadiwan site were analyzed and re- searched. Analysis and simulation tests were also carried out to study the hydratability of calcined ginger nut and calcined kunkur, and the manufacturing process of the residential floors. The research shows that the floor was made of a light concrete formed by the mixture of aggregate of calcinated ginger nut （locally deposited）, red clay and kunkur. The dicalcium silicate （C2S） from the floor material of the housing site is one of the main constituents of modem cement, and the floor is also similar to modem concrete in nature. Therefore, the floor material of the housing site at the Dadiwan site was the earliest man-made concrete in the world ever discovered.展开更多
基金Supported by the National Natural Science Foundation of China (Nos.31070185, 40876081 and 31093440)the Knowledge Innovation Program of Chinese Academy of Sciences (No. KSCX2-YW-Z-018)+6 种基金the Science and Technology Plan Project of Guangdong Province (No. 2011B031100010)the Team Project of Natural Science Foundation of Guangdong Province(No. S2011030005257)the Talent Introduction Projects of Guangdong Province Universities and Collegesthe Grant of Key Laboratory of Integrated Marine Monitoring and Applied Technologies for Harmful Algal Blooms, S.O.A., MATHAB (No. MATHAB20100301)the Science and Technology Plan Project of Shantou City (No. 2011-162)the Startup Projects (Nos. 09400133 and 09400134)the Grant for Youth Teachers of Shantou University, P. R. China
文摘Acrochaete leptochaete （Huber） Nielsen （Chaetophoraceae, Chlorophyta） was isolated from the macroalgae Chaetomorpha collected from intertidal pools in Rongcheng, Shandong, China. 18S rDNA combined with ITS regions were used to ascertain the morphological identification of the isolated material. Based on the unialgal culture, asexual reproduction and growth characteristics of A. leptochaete were investigated over wide ranges of temperature and irradiance. Results revealed that asexual reproduction of A. leptochaete could be realized by biflagellate zoospores. The zoospores germinated directly to give self- replicating generations. Zoospore germination was bipolar. A temperature range from 13-21 ℃ and a lower irradiance of 36 μmol/（m2.s） were most favorable for the growth ofA. leptochaete. Thallus organization, an important taxonomic criterion for the genus Acrochaete, was affected markedly by temperature and irradiance. Our results extend the knowledge about the species＇ general biology and its morphological plasticity. For classification and identification of a simple microphytic algae like A. leptochaete, which are traditionally placed in the class Chaetophoraceae, we propose that molecular tools associated with culture observations are applied.
文摘With the rapid development of information networks and the overall development of e-commerce, online marketing has continued to assault the traditional business marketing model and methods of operation, and it makes great effects on existing business concepts and ideas from different angles and levels. For these weaker small and medium-sized enterprises, network marketing with its low cost, wide range of applications, the effect of strong natural advantages becomes marketing approach of small and medium-sized enterprises which they can hold up and afford, which also provides unprecedented opportunity for small and medium-sized enterprises to have the opportunity to compete with large-scale enterprises on the same stage.
文摘This paper is built on the study of one key blog-Wang Xiaofeng＇s No Guess （2006-2011） to explore how a Chinese intellectual uses his satirical skills in the blogosphere, how his blog reshapes the form of political culture, and how the blogosphere through such interventions proceeds in the development of political communications in China. Two key issues are addressed in the paper. Firstly, drawing on the concept of ＂blogging culture＂, the author argues that blogging has potentially reconfigured political information around people＇s everyday lives, offering alternative modes of ＂public talk＂. The case of Wang Xiaofeng shows that satire can be used to make fun of the state, policies, and established ideologies, improving a previously restricted communicative environment toward more open. Secondly, the rise in the value placed on individualism in China, and the rise of peer-to-peer media mean that bloggers who pursue self-expression simultaneously through such self-expression. In other words, Wang Xiaofeng＇s No Guess blog demonstrates that individual opinions across the blogosphere have implicitly challenged political discourse; however, they always have to struggle with an ongoing censorship, negotiate an unstable discursive space and thus, can only enjoy a limited success.
文摘In this study, we made references to past literatures and developed an e-learning training program for CSL （Chinese as a Second Language） teachers. The class was held from July to August, 2010, in Chinese Culture University （Taiwan）, and we designed a performance-evaluation questionnaire with the Delphi method. Three months after the training program was completed, the questionnaire was given to the 30 students of the class, and they were asked to answer questions regarding their use of e-learning in the actual practice. We also asked 5 teachers to conduct experimental e-learning for us to video-record and observe. This effort allows us to discuss the use of e-learning among CSL teachers in Taiwan, come up with a conclusion and suggestions, and use the findings as references for course-planning and policies or research regarding the digital learning of Chinese.
文摘OBJECTIVE:To develop Clinical practice s of Traditional Chinese Medicine(TCM) for acute upper respiratory tract infection(AURI) in children;TCM is usedalone or administered together with antibiotics.METHODS:Under the guidance of evidence-based medicine concept,in strict accordance with the rules of international s development,as well as on the basis of evidence of clinical research of TCM,the s solicited opinions from clinical experts and methodologists in TCM and Western Medicine.GRADE standard was applied to form experts' consensus.RESULTS:The s standardized classification of TCM patterns and TCM treatments in children with AURI,including prescription,Chinese patent medicine,non-drug treatment and prevention.CONCLUSION:Follows the principle of "evidence based,consensus supplemented,and experience referred",these s were formulated,but the quality of evidence of included studies were relatively low.Further refinement of the s should be needed as deeper clinical studies as available in future.
基金supported by the National Science Fund for Distinguished Young Scholars (31625011)the National Key Research and Development Program (2016YFC1101100)+1 种基金the National Key Research and Development Plan Young Scientists Program (2017YFA0106000)the Young Elite Scientists Sponsorship Program by Cast (YESS20160180)
文摘The rapid endothelialization of tissue-engineered blood vessels(TEBVs) can effectively prevent thrombosis and inhibit intimal hyperplasia. The traditional Chinese medicine ingredient icariin is highly promising for the treatment of cardiovascular diseases.β-cyclodextrin sulfate is a type of hollow molecule that has good biocompatibility and anticoagulation properties and exhibits a sustained release of icariin. We studied whether icariin-loaded β-cyclodextrin sulfate can promote the endothelialization of TEBVs. The experimental results showed that icariin could significantly promote the proliferation and migration of endothelial progenitor cells; at the same time, icariin could promote the migration of rat vascular endothelial cells(RAVECs). Subsequently,we used an electrostatic force to modify the surface of the TEBVs with icariin-loaded β-cyclodextrin sulfate, and these vessels were implanted into the rat common carotid artery. After 3 months, micro-CT results showed that the TEBVs modified using icariin-loaded β-cyclodextrin sulfate had a greater patency rate. Scanning electron microscopy(SEM) and CD31 immunofluorescence results showed a better degree of endothelialization. Taken together, icariin-loaded β-cyclodextrin sulfate can achieve anticoagulation and rapid endothelialization of TEBVs to ensure their long-term patency.
文摘During 1970s, the residential remains of the Yangshao Period were discovered at the Dadiwan site in Qin＇an County, Gansu Province, China. With carbon-14 dating, scanning electron microscope （SEM）, thermal expansion analyzer, polarizing microscope （PLM）, and X ray diffraction （XRD）, the microstructures and chemical compositions of the pottery shard, floor materials of the housing site, kunkur, calcined kunkur, ginger nut （calcium concretion） from the Dadiwan site were analyzed and re- searched. Analysis and simulation tests were also carried out to study the hydratability of calcined ginger nut and calcined kunkur, and the manufacturing process of the residential floors. The research shows that the floor was made of a light concrete formed by the mixture of aggregate of calcinated ginger nut （locally deposited）, red clay and kunkur. The dicalcium silicate （C2S） from the floor material of the housing site is one of the main constituents of modem cement, and the floor is also similar to modem concrete in nature. Therefore, the floor material of the housing site at the Dadiwan site was the earliest man-made concrete in the world ever discovered.
