首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献，搜索用时 15 毫秒
1.
何苗 《科教文汇》2007,(1):164-165
Lawrence is regarded as one of most accomplished short story writers in twentieth century, with ＂Odour of Chrysanthemums＂ one of his early works. Through the death of a miner, the text shows how humanity was ruined by industrial civilization. This essay is intended to unveil the destructive force by analyzing the relationship between the husband and wife.  相似文献   

2.
As a research professor at the Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences, Miguel Esteban is the first non-Chinese scientist to chair a major scientific research program in China. Born and educated in Spain and the UK, he worked in Madrid and London as a scholar and physician before joining GIBH in January 2008. Just two years after his arrival, in 2010, Professor Esteban was named by the Chinese Ministry of Science and Technology as the chief scientist of a five-year major research program on stem cell study with a grant up to 28 million yuan (about 4.4 million US dollars). The following is a brief interview between BCAS reporter XIN Ling and the Professor about his work and life in China.  相似文献   

3.
陈艳 《科教文汇》2007,(10S):184-185
This essay is intended to explore some of the elements which bring about the tragic destiny of the heroine, Eustacia. She is a beautiful and romantic woman with violent passions. In her dark beauty, Hardy has painted one of his most memorable portraits. This essay attempts to deal with the topic question primarily from two aspects, the inner world of Eustacia herself and the external world around her. In Hardy＇ s work, human existence is usually depicted as a tragedy determined by powers beyond the individual＇ s command the external pressures of society and the internal compulsions of character.  相似文献   

4.
一个原始的苔类的目——藻苔目在中国的发现   总被引：1，自引：0，他引：1  
 1961, a Japanese specimen of liverworts was named as Takakia lepidozioides by Hattori and Inoue and they treated it to establish a new order Takakiales.  1963, “Le- pidozia ceratophylla” was determined by Grolle as the second  species  of Takakia. Hitherto, they were found in Japan, Malaysia, Nepal, Sikkim, Aleutian Island and the Queen Charlotte Islands separately.  1980, 1982, Wang Mei-zhi collected Takakia lepi- dozioides in the forest ground of Abies delavaya in Bomi and Zayii, Xizang. According to it's features, it is apparet that Takakialens is the most primitive one in liverworts,perhaps it could be treated as a kind of “living fossil”.  相似文献   

5.
The 2004 enlarged summer session of the Leading Group of the Communist Party of China (CPC) at CAS was held July 26-31. It came amid a nationwide campaign to study the important thought of the Three Represents and the scientific approach to development advanced by the CPC Central Committee. The meeting coincided with a crucial moment for the development of CAS, as the Academy is about to kick off the third phase of work for the trial implementation of its Knowledge Innovation Program (KIP). A wide range of issues were discussed at this highly efficient and pragmatic meeting, which is expected to significantly influence the development of CAS.  相似文献   

6.
<正>QIN Liping,a professor of geochemistry at the University of Science and Technology of China(USTC),was presented the 2014 Houtermans Medal by the European Association of Geochemistry in Sacramento in June.She is the fi rst Chinese to receive this award.QIN finished her undergraduate degree at USTC.After earning her PhD from the University of Chicago in 2007,she did her postdoc at the Carnegie Institution for Science in Washington,D.C.under a Carnegie Fellowship.Then she conducted research at the Lawrence Berkeley National Laboratory as a Geological Postdoctoral Fellow.In 2012,QIN was recruited by  相似文献   

7.
<正>Of all human conditions,aging and death are perhaps the most universal.Unfortunately death among elderly populations is often a drawn out and painful affair,as advanced age is accompanied by marked rises in morbidity and mortality due to infectious diseases.Precisely why this is the case has been subject to a great deal of speculation,but one commonly held explanation is referred to as immunosenescence,where the human body undergoes a remodeling of both innate and adaptive immune responses,and some functions are enhanced while others diminished.Both responses are key to the human immune systems,which fights off outside  相似文献   

8.
In the view of Russell and T. S. Eliot, Lawrence is merely a vandal thinker, if they treated him as a thinker. Nevertheless, Lawrencemeant to reconstruct the western civilization pivoting on his own religious philosophy, as he himself said in the letter to Edward GarnettApril 22, 1914:“primarily I am a passionately religious man, and mynovels must be written from the depth of my religious experienceThat I must keep to, because I can only work like that”(Clarke, 27)He always maintained t…  相似文献   

9.
With the globalization of the world, language teaching becomes more important than ever before, and many universities and classroom teachers are active to exploret he most efficient and effective methodology to teach languages to achieve a desirable result. When they seek to improve the quality of language teaching, they often research teaching methodologies by referring to general theories about language and language learning. Theoretical bases and teachers‘ hands-out experience have informed methodologies of language teaching, and methods of language teaching have been improved with the developments about linguistics, psychology and education. But there is a question which extent the information that theory has made available can be used to explore language teaching methodology and of the relevance of theory to language teaching methodology.  相似文献   

10.
The silkworm ( Bombyx mori) is not a worm, but the larva of a moth. First domesticated for silk production about 5,000 years ago, it is a well-studied lepidopteran model system, thanks to its rich repertoire of distinctive mutations affecting virtually every aspect of the organism‘s morphology, development and behavior, as well as its considerable economic importance.  相似文献   

11.
The giant panda (Ailuropoda melanoleuca) is not a relic species, and it can survive, according to scientists. Employing microsatellite and mitochondrial control region (CR) sequences as genetic markers, CAS researchers have obtained some key information about the giant panda and its recent evolution history. Their discovery that the lovely creature still possesses high genetic diversity and evolution potentials challenges the hypothesis suggesting the giant panda is facing an"evolutionary dead-end." The research was reported in a recent issue of Molecular Biology and Evolution by a team of scientists led by Prof.WEI Fuwen of the CAS Institute of Zoology and Prof. Michael W.Bruford of Cardiff University.  相似文献   

12.
Chinese civilization has a long history of 5,000years. It is China's fine tradition to attach importance to ethics and morality, that is "All must regard self-cultivation as the root." Confucius once said that "Benevolence means love of people." He advocated respecting people, concerning about people and caring for people.  相似文献   

13.
<正>Human brain is one of the most complicated systems existing in nature.It is estimated that approximately 1011neurons structure a highly complicated network in an adult brain through interconnection via 1015 synapses,thus research breakthroughs in visualization of the whole brain neural networks with the resolution level of individual neurons could serve as the base for understanding of brain functions and diseases.The Human Connectome is a study designed to run comprehensive analysis,as well as simulation of the neural connections and network structures of brain functions so as to unravel the secrets of how human brains work.The project seeks to,on all levels varying from macro view(encephalic region)to micro angle(individual neurons),present a thorough depiction of the frame network of human  相似文献   

14.
Horseflies are a blood-feeding arthropod, notorious as a common pest of animals and sometimes of humans. While a target of the biological control in green farming and animal husbandry, dried bodies of the females, known as mangchong, are used in traditional Chinese medicine (TCM) to treat cardiovascular diseases. Although the unique drug is believed to contain various bioactive substances, little has been known about its biochemical functions in the secretion of the insect's salivary glands and, in parti...  相似文献   

15.
<正>Verticillium dahliae(V.dahliae)is a soil borne fungal pathogen that infects a broad range of hosts.It is now becoming a major threat to many economically important crops,such as cotton and sunflower.Similar to most filamentous pathogens,V.dahliae secretes effector proteins to overcome plant  相似文献   

16.
Cypripedium subtropicum S.  C. Chen et K. Y. Lang is a phytogeography- cally significant new species with its habit, inflorescence and column very similar to those of Selenipedilum of tropical America.  It is found in Mêdog of southeastern Xi- zang, China.  Its slender leafy stem bears at the summit a many-flowered raceme, am- ounting to 1.5 m in height. Although its ovary is unilocular—this is the reason why we place it in Cypripedium, the column characters resemble those of Selenipedilum. For example, the staminode is rather small and its long stalk is very similar in texture and color to the filament of the fertile stamens. Obviously, it is a primitive new species re- lated to Selenipedilum based on the similarities mentioned above.       In the subfamily Cypripedioideae, as generally recognized, Selenipedilum is  the most primitive genus, from which or whose allies Cypripedium is derived.  Of phyto- geographical significance is the fact that Selenipedilum occurs in Central America and northern South America, while a cypripedium akin to it is discontinuously distributed in subtropical Asia.  This suggests that Selenipedilum or Selenipedilum-like  form be once continually distributed in North America and eastern Asia when the climate there was warmer, as it is in the subtropics today.  The floristic relationship between Central America and subtropical Asia appears to be closer than expected, as shown by the dis- tribution patterns of Tropidia, Erythrodes, etc.  Based on the occurrence of all six sec- tions and particularly the most primitive form in eastern Asia, Cypripedium seems to be of Asian, rather than Central American, origin.  Selenipedilum possesses some very primitive characters, such as trilocular ovary, vanilla-scented fruit, seed with sclerotic testa, simple column and more or less suffrutescent habit.  The latter is considered by Dahlgren & Clifford (1982) to be one of ancestral characters of monocotyledons, which is now very rare not only in Orchidaceae but also in all monocotyledons.  It is indeed necessary to make further investigations on Selenipedilum and also the new species pub-lished here, as well as a detailed comparison between them.  相似文献   

17.
Climate change is real There will always be uncertainty in understanding a system as complex as the world’s climate. However there is now strong evidence that significant global warming is occurring1. The evidence comes from direct measurements of rising surface air temperatures and subsurface ocean temperatures and from phenomena such as increases in average global sea levels, retreating glaciers, and changes to many physical and biological systems. It is likely that most of the warming in r…  相似文献   

18.
<正>Schizotypy is conceptualized as an at-risk trait related to schizophrenia spectrum pathology.Empirical findings have suggested that social anhedonia,a reduced capacity to experience pleasure in social interaction,is one of the important predictors for psychosis.However,most of the previous studies were limited to behavioral findings and very few brain structural and functional studies  相似文献   

19.
<正>As about 80%of global wetland resources are degrading or disappearing,the wetland ecosystem has become one of the most seriously threatened ecosystems in the world.The Tibetan Plateau,which is an area sensitive to global change and a security barrier for the Asian ecosystem,has about 13.19x104 km2 of wetlands of special significance to China.Today,with the increasing  相似文献   

20.
Major depressive disorder （MDD） is one of the most prevalent and disabling mental disorders, .affecting more than 10% of populations worldwide. Modern views on the pathogenesis of MDD suggest that the neural activity of specific brain circuits are altered in response to external stimuli, such as stress, as a result of maladaptive molecular and cellular changes.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号