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| 1 | 糙隐子草种群在不同放牧强度下的小尺度空间格局显示文摘利用Ripley'sK函数,在0~100cm的空间尺度域上定量分析了4种放牧强度———无牧(0只/hm2羊)、轻牧(1.33只/hm2羊)、中牧(4.00只/hm2羊)、重牧(6.67只/hm2羊)下糙隐子草种群的空间格局及其随尺度的变化规律;用蒙特卡罗(MonteCarlo)随机模拟方法估计了^L(t)的置信限。研究了放牧对糙隐子草种群空间格局的影响以及糙隐子草在不同放牧条件下的斑块大小,并进一步以放牧条件下糙隐子草的生活史特征、生态适应对策以及群落内植物种间的相互作用为基础,探讨产生和维持这些格局的机理。研究结果表明:1)放牧显著影响糙隐子草种群空间格局,即使在同一放牧强度下在不同尺度(0~100cm)上糙隐子草种群的空间格局也显著不同;2)在0~100cm尺度上,糙隐子草种群的空间格局在无牧条件下为均匀分布,在轻牧和中牧条件下为集聚分布。重牧条件下,糙隐子草种群的空间分布在0~42cm尺度上为集聚分布,而在42~100cm尺度上为均匀分布,这与其自身的生物学特性和种群对放牧压力的生态适应对策密切相关;3)不同放牧条件下,糙隐子草种群的斑块大小不同;4)放牧活动的加剧改变了群落中的各种过程,并最终代替群落中的种间竞争过程而成为决定群落内物种分布的主导过程,这为在放牧活动的干预下,退化草原群落演替规律的研究提供了理论依据。 | 刘振国 李镇清 Ivan Nijs Jan Bogaert | 2005 | 草业学报2005，14，1： | 11 |
| 2 | Unreliability of aortic size index to predict risk of aortic dissection in a patient with Turner syndrome显示文摘Aortic size index(ASI) has been proposed as a reliable criterion to predict risk for aortic dissection in Turner syndrome with significant thresholds of 20-25 mm/m2. We report a case of aortic arch dissection in a patient with Turner syndrome who, from the ASI thresholds proposed, was deemed to be at low risk of aortic dis-section or rupture and was not eligible for prophylactic surgery. This case report strongly supports careful monitoring and surgical evaluation even when the ASI is < 20 mm/m2 if other significant risk factors are present. | Jan Nijs Sandro Gelsomino Fabiana Lucà Orlando Parise Jos G Maessen Mark La Meir | 2014 | World Journal of Cardiology2014，6，5： | 3 |
| 3 | A computer model to predict traffic noise in urban situations under free flow and traffic light conditions显示文摘 | L J M Jacobs L Nijs J J Van Willigenburg | 1980 | Journal of Sound and Vibration1980，72，4： | 1 |
| 4 | Chronic fatiguesyndrome:exercise performance related to immune dys-function显示文摘 | Nijs J Meeus M Mc Gregor N R | 2005 | Med Sci Sports Exerc2005，37，10： | 1 |
| 5 | Pneumoconiosis and emphysema in construction workers:results of HRCT and lung function findings显示文摘 | Meijer E Tjoe Nij E Kraus T et al | 2011 | Occup Environ Med2011，68，7： | 1 |
| 6 | Nursing intervention for fatigue during the treatment for cancer 显示文摘 | de Nijs E J Ros W Grijpdonck MH | 2008 | Cancer Nurs2008，31，3： | 1 |
| 7 | Aromatase inhibition impairs skeletal modeling and decreases bone mineral density in growing male rats显示文摘 | Vanderschueren D van Herck E Nijs J | 1997 | Endocrinology1997，138，6： | 1 |
| 8 | Analysis of differences in growth of cucumber genotypes under low light conditions in relation to night temperature显示文摘 | Nijs A P Smeets L | 1987 | Euphytica1987，36，1： | 1 |
| 9 | Effects of spatially targeted transcutaneous electrical nerve stimulation using an electrode array that measures skin resistance on pain and mobility in patients with osteoarthritis in the knee:a randomized controlled trial显示文摘 | Kolen AF de Nijs RN Wagemakers FM | 2012 | Pain2012，153，2： | 1 |
| 10 | 显示文摘 | NIJ ZHAOC ZHANGG | 2011 | ChemCommun2011，47，： | 1 |
| 11 | Glucocorticoid-induced osteoporosis:a review on pa-thophysiology and treatment options显示文摘 | De Nijs RN | 2008 | Minerva Med2008，99，1： | 1 |
| 12 | Stomatal regulation in a changing climate : A field study using flee air temperature increase (FATL) and free air CO2 enrichment (FACE) 显示文摘 | Nijs I Ferris R Blum H | 1997 | Plant Cell Environment1997，20，： | 1 |
| 13 | Different pig phenotypes affect ad- herence of Escherichia coli to jejunal brush borders by K88ab, K88ac, or K88ad antigen 显示文摘 | Bijlsma G de Nijs C | 1982 | Infect Immun1982，37，： | 1 |
| 14 | Long-term effect of omega-3 fatty acid supplementation in active rheumatoid arthritis:a 12-month,double-blind,controlled study显示文摘 | Geusens P Wouters C Nijs J | | 0，，06： | 1 |
| 15 | ApoB versus non- HDL-cholesterol: diagnosis and cardiovascular risk management 显示文摘 | DE NIJS T SNIDERMAN A DE GRAAF J | 2013 | Crit Rev Clin Lab Sci2013，50，6： | 1 |
| 16 | Analysis of differences in growth of cucumber genotypes under low light conditions in relation to night temperature显示文摘 | Den Nijs A P M Smeets L | 1987 | Euphytica1987，36，1： | 1 |
| 17 | Correlation between male age,WHO sperm parameters,DNA fragmentation,chromatin packaging and outcome in assisted reproduction technology显示文摘 | Nijs M De Jonge C Cox A | 2011 | Andrologia2011，43，3： | 1 |
| 18 | Disorders of the pediatric pancreas: imaging features显示文摘 | Els Nijs Michael J. Callahan George A. Taylor | 2005 | Pediatric Radiology2005，，4： | 1 |
| 19 | Determinants ofland-use change patterns in the Netherlands显示文摘 | Verburg P H van Eck J R Nijs T C | 2004 | Environment andPlanning B : Planning and Design2004，，： | 1 |
| 20 | Juvenile myoclonic epi- lepsy as a possible neurodevelopmental disease:role of EFHC1 or Myocloninl显示文摘 | De Nijs L Wolkoff N Grisar T | 2013 | Epilepsy Behav2013，28，1： | 1 |
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