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| 1 | Dasycarine, a New Quinoline Alkaloid from Dictamnus dasycarpus显示文摘Dasycarine, a new quinoline alkaloid along with five known compounds, dictamine, dihydroobacunone, obacunone, fraxinellone and β-sitosterol, were isolated from Dictamnus dasycarpus. The structure of dasycarine was identified as 4, 5, 8- trimethoxyl -3- (3- methyl -2- butenyl)- 2- quinone by 1D and 2D NMR techniques. | Jin CHEN Jing Sheng TANG Jun TIAN You Ping WANG Feng E WU | 2000 | Chinese Chemical Letters2000，11，8： | 7 |
| 2 | Operation Efficiency and Influencing Factors of Listed Companies of Swine Industry:Empirical Analysis Based on Data of 16 Listed Companies in 2010-2014显示文摘Listed companies of the swine industry,as an important form of agricultural industrialized operation,are typical representatives of large-scale production and the level of their operation efficiency exerts a direct influence on the healthy development of the swine industry.Using the DEA-based Malmquist method,this paper made a static and dynamic evaluation of the operation efficiency of 16 listed companies in China's swine industry in 2010-2014. It obtained following results:( i) The overall efficiency of listed companies of China's swine industry remained at high level and the development trend was excellent.( ii) Different types of enterprises had difference in the overall efficiency,pure technical efficiency and scale efficiency. In general,pig feed processing companies had the best performance,followed by slaughtering and deep processing companies,and swine breeding companies were the worst.( iii) The total factor productivity characterized by the Malmquist index declined year by year in 2010-2013 and was improved in 2014,mainly due to technological progress.( iv) The total asset turnover ratio,equity concentration,and R & D management level had a significantly positive impact on the operation efficiency of listed companies in the swine industry,while the human capital had a significantly negative impact. | Mengqi YOU Zhenhong QI Ai’e WANG Xinrui LI Weihong HUANG Wenbin WAN | 2017 | Asian Agricultural Research2017，9，3： | 2 |
| 3 | Reproductive Biology and Prospects for Conservation of Caldesia parnassifolia (Alismataceae)——A Threatened Monocot in China显示文摘Caldesia parnassifolia (Bassi ex Linn.) Parl. in China has declined in number in r ecent years and is increasingly faced with the risk of extirpation arising from anthropogenic changes associated with rapid urbanization and expansion of both agriculture and infrastructure. To aid in provision of the data needed for effective conservation of the species, studies on the habitat, pollination ecology, and breeding system of C. parnassifolia were carried out on natural populations occurring in Southeastern China. Flowering in the study populations extended for more than eighty days beginning in early summer. Floral anthesis occurred in the morning hours and proceeded rapidly, lasting about 45 min. Flowers lasted ca. 8 h. Caldesia parnassifolia is self\|compatible; however autogamy resulted in lower seed set than geitonogamy and xenogamy as well as free pollination. The data on pollen/ ovule (P∶O) ratio is consistent with a partially selfing and outcrossing mating system. Interpopulational crosses yielded similar seed set to within\|population crosses. Agamospermy did not occur in the study populations. Propagation is achieved through seeds as well as through turions which commonly occur in the inflorescences. Flies (Insecta; Diptera) were the most frequent visitors to the flowers of C. parnassifolia; however bees (Insecta; Hymenoptera) composed a larger proportion of effective pollinators. The Syrphidae species Sphaerophoria indiana (Bigot) presents evidence of oligolectic foraging behavior. Recommendations are made on the immediate steps necessary for conservation of Caldesia species in China. | Gituru Wahiti Robe rt, Wang Qing\|feng , Wang Yong, Guo You\|hao Colleg e of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China | 2003 | Wuhan University Journal of Natural Sciences2003，8，01A： | 2 |
| 4 | Dynamic modulussimulation of the asphalt concrete using the X-raycomputed tomography images显示文摘 | You Z P Adhikari S Kutay M E | 2009 | Materials andStructures2009，42，5： | 1 |
| 5 | Isolation and characterization of 23 polymorphic microsatellite markers for diversity and stock analysis in tiger shrimp (Penaeus monodon) 显示文摘 | Yu W P Chou H H You E M | 2004 | Mol Eco Notes2004，4，： | 1 |
| 6 | DynamicModulus Simulation of the Asphalt Concrete Using the X-ray Computed Tomography Images 显示文摘 | YOU Zhanping ADHIKARI S KUTAY M E | 2009 | Materials andStructures2009，42，5： | 1 |
| 7 | Directconverison of cellulose into polyols or H2 over P t/N a (H )-Z S M -5 显示文摘 | YOU S J BEAK I G KIM Y T JEONG K E CHAE H J KIM T W KIM C U KIM T J CHUNG Y M OH S H PARK E D | | Korean J Chem Eng0，28，3： | 1 |
| 8 | A hydrated ethylenediammonium salt of a new polymeric polyoxoanion (H2en)4·3H2O显示文摘 | LUAN G Y WANG E B YOU W S | 2000 | Acta Cryst2000，56，： | 1 |
| 9 | Arachidonic acid metabolites, hydrogen peroxide, and EDHF in cerebral arteries显示文摘 | You J Golding E M Bryan R M Jr | 2005 | Am J Physiol Heart Circ Physiol2005，289，3： | 1 |
| 10 | Highly efficient phosphorescent emission from organic electroluminescence devices显示文摘 | Baldo M A O'Brien D F You Y Shoustikov A Sibley S Thompson M E Forret S R | | 0，，： | 1 |
| 11 | Changes in daily climate extremes in China and their connection to the large scale atmos- pheric circulation during 1961 - 2003 显示文摘 | You Q L Kang S C Aguilar E | 2011 | Climate Dynamics2011，36，： | 1 |
| 12 | Evaluation of low-tem- perature binder properties of warm-mix asphalt, extracted and recovered RAP and RAS,and bioasphalt显示文摘 | YOU Z P MILLS B J FINI E | 2011 | Journal of Mate- rials in Civil Engineering2011，23，11： | 1 |
| 13 | Three dimensional design of large-scale TiO2 nanorods scaffold decorated by silver nanoparticles as SERS sensor for ultrasensitive malachite green detection显示文摘 | TAN E YIN P YOU T | 2012 | ACS Appl Mater Inter2012，4，7： | 1 |
| 14 | Prevalence,characteristics,and publication of discontinued randomized trials显示文摘 | Kasenda B von Elm E You J | 2014 | JAMA2014，311，10： | 1 |
| 15 | Calculating stable and unstable manifolds显示文摘 | You Z Kostelich E J Yorke J A | 1991 | Int J Bifurc Chaos Appl Sci Eng1991，1，3： | 1 |
| 16 | A PhaseⅡtrial of erlotinib as maintenance treatment after gemcitabine plus platinum-based chemotherapy in patients with recurrent and/or metastatic nasopharyngeal carcinoma显示文摘 | YOU B LE TOURNEAU C CHEN E X | 2012 | Am J Clin Oncol2012，35，： | 1 |
| 17 | Integrated multi-eche- lon supply chain design with inventories under uncer- tainty: MINLP models, computational strategies 显示文摘 | YOU F GROSSMANN I E | 2010 | AIChE Journal2010，56，2： | 1 |
| 18 | Effects of circuit miniaturization in reducing inflammatory response to infant eardiopulmongry bypass by elimination of allogeneic blood products显示文摘 | Karamlou T You J | 2006 | Ann Thorac Surg2006，81，6： | 1 |
| 19 | Effects of enterostomal nurse telephone follow-up on postoperative adjustment of discharged colostomy patients显示文摘 | Zhang J E Wong K Y You L M | | 0，，6： | 1 |
| 20 | 2-(2-Phenyl-1Hphenanthro-imidazole-1-yl)-acid (PPIA) and its application for determination of amines by high performance liquid chromatography with fluorescence detection and identification with mass spectroscopy/atmospheric pressure chemical ionization显示文摘 | You J M Zhao X E Suo Y R | 2006 | Anal Chim Acta2006，565，： | 1 |
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