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Xier Luo Yu Zhou Bing Zhang Yi Zhang Xiaobo Wang Tong Feng Zhipeng Li Kuiqing Cui Zhiqiang Wang Chan Luo Hui Li Yanfei Deng Fenghua Lu Jianlin Han Yongwang Miao Huaming Mao Xiaoyan Yi Cheng Ai Shigang Wu Alun Li Zhichao Wu Zijun Zhuo Do Da Giang Bikash Mitra Mohammad Farhad Vahidi Shahid Mansoor Sahar Ahmed Al-Bayatti Eka Meutia Sari Neena Amatya Gorkhali Sigit Prastowo Laiba Shafique Guoyou Ye Qian Qian Baoshan Chen Deshun Shi Jue Ruan Qingyou Liu 《国家科学评论(英文版)》2020,7(3):686
Domesticated buffaloes have been integral to rice-paddy agro-ecosystems for millennia, yet relatively little is known about the buffalo genomics. Here, we sequenced and assembled reference genomes for both swamp and river buffaloes and we re-sequenced 230 individuals (132 swamp buffaloes and 98 river buffaloes) sampled from across Asia and Europe. Beyond the many actionable insights that our study revealed about the domestication, basic physiology and breeding of buffalo, we made the striking discovery that the divergent domestication traits between swamp and river buffaloes can be explained with recent selections of genes on social behavior, digestion metabolism, strengths and milk production. 相似文献
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Mary A. Anderson Frank Bowles C. O. Taiwo Jan D. Beckmann L. J. Lewis James R. Liesch Godfrey N. Brown H. L. Elvin Shib K. Mitra Richard F. Behrendt Graeme Kemelfield Hugh W. R. Hawes W. A. Dodd A. L. Tibawi 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1971,17(2):220-251
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Shakya Mitra 《Soccer & Society》2014,15(5):709-719
Spain, for long considered the glorious underachievers of world football, have in the last five years made a spectacular transition. From having a solitary European Championship win in 1964, they have won the last three major international tournaments they have appeared in. This achievement has evoked comparisons with some of the world’s greatest teams. Yet, it was not always so good for Spain; ravaged by the civil war and with infighting amongst different regions, Spain struggled on the international arena despite two immense clubs in Barcelona and Real Madrid. In recent years, the football team has risen above these divisions and ironically, given the long-standing tensions between Catalonia and Spain, the core of their success has been through players from FC Barcelona, the Catalan-based powerhouse. A major catalyst in Spain’s stunning rejuvenation as an international football powerhouse has been midfielder Xavi Hernandez. The interesting fact about Xavi is that not only is he a fabulous player who would have surely won more accolades if he were not in the shadow of Lionel Messi, but also that he is a born and bred Catalan. It is of great interest that the region, with which Spain has had its most bitter relationship, has provided Spain the core of players that has driven them to glory for the last five years. 相似文献
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Necessary and sufficient conditions for reducibility of certain classes of multivariable polynomials are considered. The special case when a polynomial in that class can be factored into a finite product of single variable polynomials is investigated. A set of necessary and sufficient conditions for decomposing a multivariable p.r.f. into a sum of single variable p.r.f.'s is given. Examples to illustrate applications of sum and product separabilities of functions are given. 相似文献
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Given the importance of developing civically engaged and knowledgeable citizens, many have sought to improve the quality of students’ civic education experiences. This article examines one particular effort spearheaded by the Joe Foss Institute, the Civic Education Initiative (CEI). Since the CEI was announced, 18 states have passed legislation that includes a civics test component embedded in the CEI. This conceptual article examines the CEI against research-based practices for teaching civics. It then introduces the policy design framework as a tool for analyzing civic policies like CEI. This political science theory recognizes that policies themselves send important signals that have implications for students’ civic development. We utilize the policy design framework to analyze CEI and, in particular, how CEI is likely to shape students’ civic and political engagement. We conclude with a proposal for future research on civic education using the policy design framework. 相似文献
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Information Retrieval from Documents: A Survey 总被引：4，自引：0，他引：4
Given the phenomenal growth in the variety and quantity of data available to users through electronic media, there is a great demand for efficient and effective ways to organize and search through all this information. Besides speech, our principal means of communication is through visual media, and in particular, through documents. In this paper, we provide an update on Doermann's comprehensive survey (1998) of research results in the broad area of document-based information retrieval. The scope of this survey is also somewhat broader, and there is a greater emphasis on relating document image analysis methods to conventional IR methods.Documents are available in a wide variety of formats. Technical papers are often available as ASCII files of clean, correct, text. Other documents may only be available as hardcopies. These documents have to be scanned and stored as images so that they may be processed by a computer. The textual content of these documents may also be extracted and recognized using OCR methods. Our survey covers the broad spectrum of methods that are required to handle different formats like text and images. The core of the paper focuses on methods that manipulate document images directly, and perform various information processing tasks such as retrieval, categorization, and summarization, without attempting to completely recognize the textual content of the document. We start, however, with a brief overview of traditional IR techniques that operate on clean text. We also discuss research dealing with text that is generated by running OCR on document images. Finally, we also briefly touch on the related problem of content-based image retrieval. 相似文献
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This study assessed the extent to which an Internet-recruited sample of residents of India was supportive of the provision of comprehensive sexual education in school in a country where youth sexual health is poor. We sought to determine whether attitudes differed for those of varying demographic backgrounds (age, sex, education level, religion), the extent of support for comprehensive coverage, the school or age levels deemed appropriate for delivery, and whether own sex education history influenced support. We conducted an anonymous online survey with 1140 Indian adults using crowdsourcing methods. We found widespread support for the provision of sex education to youth in India among members of our largely well educated, middle-class sample. However, most participants believed sex education should be provided relatively late (i.e., in mid- to late-adolescence). Few opposed sex education altogether and attitudes were not predicted by background, own school-based sex education, or parent-child communication about sex. Less than one-third of participants endorsed the coverage of all topics, indicating that support for truly comprehensive coverage was not strong. However, the findings counter politicised efforts to ban sex education by state leaders despite the availability of a progressive, comprehensive curriculum offered by the Central government. 相似文献
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