ESSENTIAL

作品数:798被引量:1986H指数:20
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Calicin is a key sperm head-shaping factor essential for male fertility被引量:1
《Science Bulletin》2022年第23期2395-2397,共3页Wei Yan 
Sperm are produced in the testis through a process termed spermatogenesis, which includes three phases-mitotic (proliferation and differentiation of spermatogonia), meiotic (differentiation of spermatocytes), and hapl...
关键词:男性生育 精子头部 DIFFERENTIATION 
Untangling the interactions among the Sustainable Development Goals in China被引量:9
《Science Bulletin》2022年第9期977-984,M0004,共9页Junze Zhang Shuai Wang Prajal Pradhan Wenwu Zhao Bojie Fu 
supported by the National Natural Science Foundation of China(41991230);the National Key Research and Development Program of China(2017YFA0604701);Prajal Pradhan acknowledges funding from the German Federal Ministry of Education and Research for the BIOCLIMAPATHS project(01LS1906A)under the Axis-ERANET call;reviewed by Ministry of Natural Resources of the People’s Republic of China(GS(2021)8701)。
Understanding the interactions(synergies and trade-offs)among the Sustainable Development Goals(SDGs)is crucial for enhancing policy coherence between different sectors.However,spatial differences in the SDG interacti...
关键词:Sustainable Development Goals Essential needs GOVERNANCE Objectives INTERACTIONS 
Mapping essential urban land use categories in China(EULUC-China):preliminary results for 2018被引量:58
《Science Bulletin》2020年第3期182-187,共6页Peng Gong Bin Chen Xuecao Li Han Liu Jie Wang Yuqi Bai Jingming Chen Xi Chen Lei Fang Shuailong Feng Yongjiu Feng Yali Gong Hao Gu Huabing Huang Xiaochun Huang Hongzan Jiao Yingdong Kang Guangbin Lei Ainong Li Xiaoting Li Xun Li Yuechen Li Zhilin Li Zhongde Li Chong Liu Chunxia Liu Maochou Liu Shuguang Liu Wanliu Mao Changhong Miao Hao Ni Qisheng Pan Shuhua Qi Zhehao Ren Zhuoran Shan Shaoqing Shen Minjun Shi Yimeng Song Mo Su Hoi Ping Suen Bo Sun Fangdi Sun Jian Sun Lin Sun Wenyao Sun Tian Tian Xiaohua Tong Yihsing Tseng Ying Tu Hong Wang Lan Wang Xi Wan Zongming Wang Tinghai Wu Yaowen Xie Jian Yang Jun Yang Man Yuan Wenze Yue Hongda Zeng Kuo Zhang Neng Zhang Tao Zhang Yu Zhang Feng Zhao Yichen Zheng Qiming Zhou Nicholas Clinton Zhiliang Zhu Bing Xu 
partially supported by the National Key Research and Development Program of China(2016YFA0600104);supported by donations made by Delos Living LLC,and the Cyrus Tang Foundation;supported by the National Natural Science Foundation of China(41471419);Beijing Institute of Urban Planning;supported by the Fundamental Research Funds for the Central Universities(CCNU19TD002).
Land use reflects human activities on land.Urban land use is the highest level human alteration on Earth,and it is rapidly changing due to population increase and urbanization.Urban areas have widespread effects on lo...
关键词:EULUC-China 土地利用类型 
Lipophagy is essential for lipid metabolism in fish被引量:1
《Science Bulletin》2018年第14期879-882,共4页Jing wang Si-Lan Han Ling-Yu Li Dong-Liang Lu Samwel Mchele Limbu Dong-Liang Li Mei-Ling Zhang Zhen-Yu Du 
supported by the National Basic Research Program of China(2014CB138603)
Lipophagy is a form of autophagy in mammals.In this cellular process,lipid droplets(LDs)are degraded through the lysosomal degradative pathway[1].During lipophagy,LDs sequestrated in autophagosomes are delivered to ly...
关键词:类脂化合物 新陈代谢  哺乳动物 生物功能 脊椎动物 ing LD 
GCC box in Arabidopsis PDF1.2 promoter is an essential and sufficient cis-acting element in response to MeJA treatment被引量:2
《Chinese Science Bulletin》2004年第23期2476-2480,共5页XIEBingyan LUXiangyang YANGYuhong HUANGRongfeng 
The expression of Arabidopsis PDF1.2 gene is regulated by jasmonic acid (JA) and ethylene (ET). It also has been well documented that GCC box is an element re- sponsive to ET,however, the responsive mechanism of JA in...
关键词:PDF1.2基因 茉莉酮酸 乙烯 植物 甲基茉莉酮酸酯 
Upstream CRP-binding site is not essential for CRP-cAMP-mediated inhibition on the nifU promoter被引量:1
《Chinese Science Bulletin》2002年第21期1821-1825,共5页LI Zhiting ZHANG Weijia WANG Yiping 
This work was supported in part by the National Natural Science Foundation of China (Grant No. 39925017), the International Cooperation Program (Grant No. 2001AA214211), the "863" Program (Grant No. 2001AA214021) and the "973" Program (Grant No. 2001C
When the NifA-mediated activation of Kleb-siella pneumontae nifU promoter is recreated in Escherichia coli, it has been observed that CRP-cAMP has an inhibitory effect on the nifU promoter. Sequence analysis indicates...
关键词:CRP-cAMP the nifU PROMOTER gene regulation. 
Essential natures of Carlin-type gold mineralization in the Zhenxun Basin
《Chinese Science Bulletin》1999年第S2期238-240,共3页MA Jianqin~1 and ZHANG Fuxin~2 1. Institute of Geochemistry, Chinese Academy of Science, Guiyang 550002, China Present address: Highway Egineer College, Xi’an Highway University, Xi’an 710064, China 2. Department of Geology, Northwest University, Xi’an, 710069, China 
THE Zhen’ an-Xunyang (Zhen-Xun) Basin, located in the center of the Qinling Minor Plate in the Qinling orogen, develped and evoluted from the Devonian to the Triassic. The basin and its basement aresimilar to that of...
关键词:Carlin TYPE GOLD MINERALIZATION Zhenxun Basin. 
A new C~*-algebra and its essential commutant
《Chinese Science Bulletin》1999年第3期204-207,共4页Jinshan Liu Yunxin Zhang Kunyu Guo 
A new C~* -algebra E+E_* is established. It contains the large Hankel algebra N^G produced by all Toeplitz operators and Hankel operators. It is the proper algebra of B (H^2) and its essential commutant is obtained, w...
关键词:ESSENTIAL COMMUTANT TOEPLITZ OPERATOR HANKEL operator. 
Essential commutant of analytic Toeplitz operators
《Chinese Science Bulletin》1997年第7期548-552,共5页Ding, XH Sun, SH 
LET Bn be the unit ball of Cn. The n-dimensional vector space over the complex field C, Sn=(?)Bn is the boundary of Bn. We use σ to denote the unique rotation-...
关键词:TOEPLITZ OPERATORS INNER function ESSENTIAL commutant. 
Essential point set of convolution power of a probability measure on locally compact topological semigroup被引量:1
《Chinese Science Bulletin》1995年第14期1155-1159,共5页刘锦萼 房俊岭 俞绍宏 
Project supported by the Natural Science Foundation of Shandong Province.
Many authors have studied the limit hehavior of the sequence of probability measureon a topological group or scmigroup.As to the description of the limit behavior of the sequence by the essential point setof the convo...
关键词:LOCALLY compact SEMIGROUP PROBABILITY measure COMPLETELY simple SEMIGROUP ESSENTIAL point. 
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