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正Prof.Dr.Zhou Mingzhen(1918-1996),also known as Minchen Chow,was the founder of mammalian paleontology in China and a worldwide well-known Chinese vertebrate paleontologist.He assisted Yang Zhongjian(C.C.Young),founder of vertebrate paleontology in China,in formulating the development of the Institute of Vertebrate Paleontology and Paleoanthropology(IVPP),Chinese Academy of Sciences(CAS),and succeeded to the Director of the IVPP after 相似文献
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LI Chuan-Kui 《古脊椎动物学报》2017,55(2)
Prof.Dr.Yang (1897-1979) was not only a vertebrate paleontologist,but also a brilliant geologist,educator,and poet.His VP career can be divided roughly into two periods:in the early years,1927-1937,he studied mainly the Zhoukoudian and other Late Cenozoic mammalian faunas of northern China;after 1938,his main research interest shifted to the Mesozoic dinosaurs and synapsids. 相似文献
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Professor Ching Chun Li (C. C. Li), one of the greatest geneticists in the world and a pioneer of genetics in China, passed away fifteen years ago (Fig. 1). Let us remember him together.**Do you know who the greatest, world-renown Chinese geneticist is?" The answer,**C. C. Li, of course!” would puzzle most, if not all, of us;many in our generation don't know Who is Who (Atte ntion! Li, not Lee, the latter of which was gen erally used as the general spelli ng of that gen eration)(Fig. 2). 相似文献
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Amara Sidiki Traoré Kouadio Ignace Kouassi Moussa Koné Jacques Gignoux Sébastien Barot 《Journal of Plant Ecology》2022,15(5):1049
The spatial distributions and associations of plant species in a stand can provide essential information about their dynamics. However, since tree spatial distribution and association depend on factors that operate at different scales, disentangling the effects of environmental heterogeneity and plant–plant interactions requires the choice of a suitable null model for spatial analysis. We analyzed the spatial distributions of the same savanna palm tree populations that were studied, the underlying hypothesis being that these distributions have changed in 20 years. To remove the effect of large-scale environmental heterogeneity, the inhomogeneous L-function under the heterogeneous Poisson null model was used. We showed: (i) unlike 20 years ago, adults had a regular distribution instead of an aggregated distribution in the grass savanna; (ii) although the spatial distribution of seedlings and juveniles was always aggregated, we observed a decrease in the size of the aggregates (intensities); (iii) except for juveniles, no other stages were associated with nutrient-rich patches, which was also different 20 years ago; (iv) we did not observe any particular difference in structure between two study sites, only that female palm trees were spatially associated with entire-leafed seedlings in the reserve while they were spatially independent in the rural area. Our study supports the hypothesis that the spatial distributions have partially changed, and that the management of spatial heterogeneity has improved and given more precision in the results. 相似文献
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ZHUANG Wen-Ying 《菌物学报》2013,32(3):315-315
<正>Everybody at the age of 88 years old is called 米寿("Mi-shou" in Chinese pronunciation)in China.May 28,2013 will be Prof.Richard P.Korf's 88th birthday.Prof.Korf first visited the Department of Mycology,Institute of Microbiology,Chinese Academy of Sciences(CAS)in 1981 after he attended the International Botanical Congress in Sydney,Australia.He 相似文献
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《Cell research》2005,15(6):406-406
Prof. Ming Yeh, the Deputy Editor-in-Chief and one of the founders of Cell Research, passed away on May 25, 2005, after a battle with cancer. She was 74 years old, born September 30,1930 in Fuzhou, Fujiang Province, China.Over the last three decades, Prof… 相似文献
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Two years ago, it was found that the RNA expressed from the promoter in the 3'-untranslated region (UTR) of a gene, i.e. independent 3'-UTR RNA, exists widely in human, mouse, and fly [1]. 相似文献
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Ji-Long Liu 《遗传学报》2015,42(5)
<正>"Why do arginine and pyrimidines have to be considered together?"This was the question I asked when I was invited by Barbara Zimmermann to attend the 23rd International Conference on Arginine and Pyrimidines(ICAP)three years ago.The meeting was held in the summer of 2012 at Bogota,Columbia,known as the"the Athens of South America".I am not alone in wanting to know more about the relationship between arginine and pyrimidines.Last summer,when I was organising the next ICAP meeting at Oxford(Aughey et al.,2014),one of my colleagues asked me,"Why such a weird name for a conference?"I am not sure if I had given her a satisfying answer and I was enthused to find out what the reasons may be. 相似文献
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Po Tien 《Virologica Sinica》2007,22(1):I0001-I0001
First of all, I would like to introduce the predecessor of "Virologica Sinica (to be published in English) and its history of development. I was honored to participate in it. " Acta Virologica Sinica" (in Chinese with English abstract), which was first published in 1980, was the first virological journal issued in China. The editor in chief was Prof. Dr. Shangyin Gao (1909-1989), who was a famous virologist. He was the director of 相似文献
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《Journal of biophotonics》2020,13(4)
The above article from the Journal of Biophotonics, published online on 9 January 2018 in Wiley Online Library as Early View ( https://onlinelibrary.wiley.com/doi/abs/10.1002/jbio.201700354 ), and in Volume 11, e201700354, has been retracted by agreement between the authors (Hong Zhong, Lin Lu, Yuanhao Wang, Hongxing Yang), Prof. Sailing He, Prof. Jurgen Popp (Editor‐in‐Chief) and Wiley‐VCH GmbH & Co. KGaA. The retraction has been agreed because the submitting author Hong Zhong failed to acknowledge the true authorship of the presented study which was originally conducted by a group led by Prof. Sailing He in South China Normal University, Guangzhou of China. REFERENCE Zhong H, Lu L, Wang Y, Yang H. Single layer molybdenum disulfide as an optical nanoprobe for 2 photon luminescence and second harmonic generation cell imaging. J. Biophotonics 2018 ;11:e201700354. https://doi.org/10.1002/jbio.201700354 相似文献
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《昆虫分类学报》编辑部 《昆虫分类学报》2003,25(4):318-318
Prof.ManiwasbornatTanjorein1910andaafterbrillianteducationalcareer,settledintoavariedprofessionalcareer,mainlyasateacherandguideforhundredsofstudentsofresearchinEntomology,spanningawidevarietyofinstitutessuchasZoologicalSurveyofIndia,Calcutta,ImperialAgriculturalInstituteofPusainDelhi(astheIndianAgiculturalResearchInstitutewasthenknown),ProfessorofZoologyinSt.JohnsCollege,AgraandProfessorEmeritus,BotanyDepartmentofPresidencyCollege,Madras.HefoundedtheprestigiousSchoolofEntomologyIn… 相似文献
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利用扫描电镜观察了青城细辛(Asarum splendens)的花器官发生过程。青城细辛的花器官为轮状结构,向心发生,依次为两轮3基数的花被原基,两轮6基数的雄蕊原基和一轮6基数的心皮原基。两轮花被原基互生,只有外轮(先发生的一轮)花被原基完全发育,而内轮(后发生的一轮)花被原基在发育过程中逐渐退化。两轮雄蕊原基为离心发生:位于内侧的一轮雄蕊原基先发生,每两个原基正对第一轮发生的花被原基,外侧的一轮雄蕊原基后发生,与内轮雄蕊原基互生。心皮与内侧的一轮雄蕊互生。 相似文献
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A precise inference of past demographic histories including dating of demographic events using bayesian methods can only be achieved with the use of appropriate molecular rates and evolutionary models. Using a set of 596 mitochondrial cytochrome c oxidase I (COI) sequences of two sister species of European green crabs of the genus Carcinus (C. maenas and C. aestuarii), our study shows how chronologies of past evolutionary events change significantly with the application of revised molecular rates that incorporate biogeographic events for calibration and appropriate demographic priors. A clear signal of demographic expansion was found for both species, dated between 10,000 and 20,000 years ago, which places the expansions events in a time frame following the Last Glacial Maximum (LGM). In the case of C. aestuarii, a population expansion was only inferred for the Adriatic-Ionian, suggestive of a colonization event following the flooding of the Adriatic Sea (18,000 years ago). For C. maenas, the demographic expansion inferred for the continental populations of West and North Europe might result from a northward recolonization from a southern refugium when the ice sheet retreated after the LGM. Collectively, our results highlight the importance of using adequate calibrations and demographic priors in order to avoid considerable overestimates of evolutionary time scales. 相似文献
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D. P. Agarwal H. W. Goedde H. G. Benkmann G. Flatz A. G. Rahimi S. Kaifie H. Delbrück 《Human genetics》1976,33(1):67-72
Summary The C3 phenotype distribution was studied in 4 different populations from Afghanistan. The gene frequencies of C3s allele were: Tajiks (0.8547), Pushtoons (0.8812), Hazaras (0.9036) and Osbeks (0.8530). These values were significantly higher than in European populations studied previously. No significant differences were found between the mean serum levels of C3, C4 and C3-proactivator among 4 population groups. A higher concentration of IgG, IgA and IgM was observed in Afghanistan sera than reported for Europeans.Supported by the Stiftung Volkswagenwerk.Dedicated to Prof. J. Kühnau on his 75th birthday. 相似文献
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青城细辛的花器官发生 总被引:1,自引:0,他引:1
利用扫描电镜观察了青城细辛(Asarum splendens)的花器官发生过程。青城细辛的花器官为轮状结构,向心发生,依次为两轮3基数的花被原基,两轮6基数的雄蕊原基和一轮6基数的心皮原基。两轮花被原基互生,只有外轮(先发生的一轮)花被原基完全发育,而内轮(后发生的一轮)花被原基在发育过程中逐渐退化。两轮雄蕊原基为离心发生:位于内侧的一轮雄蕊原基先发生,每两个原基正对第一轮发生的花被原基,外侧的一轮雄蕊原基后发生,与内轮雄蕊原基互生。心皮与内侧的一轮雄蕊互生。 相似文献
19.
Schafer WR 《Current biology : CB》2005,15(17):R723-R729
Because of its small and well-characterized nervous system and amenability to genetic manipulation, the nematode Caenorhabditis elegans offers the promise of understanding the mechanisms underlying a whole animal's behavior at the molecular and cellular levels. In fact, this goal was a primary motivation behind the development of C. elegans as an experimental organism 40 years ago. Yet it has proven surprisingly difficult to obtain a mechanistic understanding of how the C. elegans nervous system generates behavior, despite the existence of a 'wiring diagram' that contains a degree of information about neural connectivity unparalleled in any organism. This review describes three types of information--molecular data on cellular neurochemistry, temporal information about neural activity patterns, and behavioral data on the consequences of neural ablation and manipulation--that, along with genetic analysis, may ultimately lead to a complete functional map of the C. elegans nervous system. 相似文献
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Abad-Zapatero C 《Structure (London, England : 1993)》2005,13(6):845-848
On a glorious spring day in the American Midwest, friends, colleagues, collaborators, and alumni of Prof. M.G. Replacement gathered together at the campus of Purdue University, West Lafayette, Indiana to celebrate 40 years of structural biology and honor the man behind it all: M.G. Rossmann. The date also corresponded approximately to MGR's 75th birthday. It was a memorable occasion for several reasons. An earlier meeting 10 years ago did also render homage to Michael (New Directions in Protein-Structure Relationships: Symposium in Honor of Professor M.G. Rossmann's 65th Birthday, Purdue University, October 21, 1995), but on this occasion the symposium was much more encompassing of structural biology and had a more global character. A large number of featured speakers presented and discussed advances in vast areas of structural biology and came from the four corners of the world to share their work with the new generations of structural biologists currently being trained at Purdue University. 相似文献