|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 利用卫星数据估算波罗的海的透明度和透光层深度显示文摘波罗的海水体透明度的长期变化趋势已按富营养化的观点加以解释。可以通过遥感数据估算得到光谱衰减系数K_d(490)。由于漫衰减系数与透明度之间存在着经验和理论关系,因此,利用遥感数据估算海水营养状态是可能的。本文研究了遥感和水下实测K_d(490)与分别于1999年在东波罗的海本体海区和2001年、2002年在西波罗的海本体海区/希默海区(Himmerfjrden)专门海上观测中获得的透明度之间的关系。利用水下测量值通过回归分析方法建立波罗的海PAR与光谱衰减系数间的关系。分析表明,在调查海区,K_d(490)约为K_d(PAR)的1.48倍。该关系用于定义透光层深度与遥感光学深度K_d(490)^(-1)间的关系。结果表明,透光层深度约是K_d(490)^(-1)的6.8倍。K_d(PAR)与透明度的回归分析结果证实了已有的研究结果,即K_d(PAR)为透明度倒数的1.7倍。再者,透明度与K_d(490)之间的水体成分反演算法用于模拟制作由SeaWiFS K_d(490)获得的波罗的海透明度分布图。该分布图通过海上实测数据加以验证,对卫星遥感获得的K_d(490)与实测K_d(490)做了对比,并讨论了产生误差的原因。 | Susanne Kratzer Bertil Hkansson Charlotte Sahlin 李四海 | 2003 | AMBIO-人类环境杂志2003，32，8： | 8 |
| 2 | High level of deoxycholic acid in human bile does not promote cholesterol gallstone formation显示文摘AIM: To study whether patients with excess deoxycholic acid (DCA) differ from those with normal percentage of DCA with respect to biliary lipid composition and cholesterol saturation of gallbladder bile.METHODS: Bile was collected during operation through puncturing into the gallbladder from 122 cholesterol gallstone patients and 46 gallstone-free subjects undergoing cholecystectomy. Clinical data, biliary lipids, bile acid composition,presence of crystals and nucleation time were analyzed.RESULTS: A subgroup of gallstone patients displayeda higher proportion of DCA in bile than gallstone free subjects.By choosing a cut-off level of the 90th percentile, a group of 13 gallstone patients with high DCA levels (mean 50percent of total bile acids) and a large group of 109 patients with normal DCA levels (mean 21 percent of total bile acids)were obtained. The mean age of the patients with high DCA levels was higher than that of the group with normal levels (mean age: 62 years vs45 years) and so was the mean BMI (28.3 vs. 24.7). Plasma levels of cholesterol and triglycerides were slightly higher in the DCA excess groups compared with those in the normal DCA group. There was no difference in biliary lipid composition, cholesterol saturation, nucleation time or occurrence of cholesterol crystals in bile between patients with high and normal levels of DCA.CONCLUSION: Gallstone patients with excess DCA were of older age and had higher BMI than patients with normal DCA. The two groups of patients did not differ with respect to biliary lipid composition, cholesterol saturation, nucleation time or occurrence of cholesterol crystals. It is concluded that DCA in bile does not seem to contribute to gallstone formation in cholesterol gallstone patients. | Ulf Gustafsson Staffan Sahlin Curt Einarsson | 2003 | World Journal of Gastroenterology2003，9，7： | 5 |
| 3 | sleep apnoca and noctur-nal angina显示文摘 | Nilsson JB Sahlin C | 2001 | Lancet2001，345，： | 1 |
| 4 | Inhibition and promotion of cholesterol crystallization by protein fractions from normal human gallbladder bile显示文摘 | Busch N Matiuck N Sahlin S | 1991 | J Lipid Res1991，32，4： | 1 |
| 5 | Two-Dimensional CFD-Analysis of Micro-Patterned Surfaces in Hydrodynamic Lubrication显示文摘 | Fredrik Sahlin Sergei B Glavatskih Torbjorn Almqvist | 2005 | Journal of Tribology2005，127，： | 1 |
| 6 | Two-dimensional CFD-analysis of micro-patterned surfaces in hydrodynamic lu- brication 显示文摘 | Sahlin F Glavatskih S B Almqvist T | 2005 | ASME J Tribol2005，127，： | 1 |
| 7 | Mitochondrial dysfunction in type 2 diabetes and obesity显示文摘 | H?jlund K Mogensen M Sahlin K | 2008 | Endocrinol Metab Clin North Am2008，37，3： | 1 |
| 8 | Formation of pinopodes in human endometrium is associated with the concentrations of progesterone and progesterone receptors显示文摘 | Stareus E Mkas G Sahlin L | 2001 | Fertil Steril2001，76，4： | 1 |
| 9 | Cytotoxicity testing of wound-dressing materials显示文摘 | Sahlin H Nygren H | 2001 | Altern Lab Anim2001，29，3： | 1 |
| 10 | On the Dry Elasto-plastic Contact of Nominally Flat Surfaces显示文摘 | Almqvist A Sahlin F Larsson R | 2007 | Tribology International2007，40，10： | 1 |
| 11 | Tricarboxylic acid cycle intermediates in human muscle during prolonged exercise 显示文摘 | Sahlin K Katz A Broberg S | 1990 | Am J Physiol1990，259，51： | 1 |
| 12 | Integrated electrophoresis chips/amperometric detection with sputtered goldworking electrodes显示文摘 | Wang J Tian B M Sahlin E | | 0，，： | 1 |
| 13 | Obstructive sleep apnea is a risk factor for death in patients with stroke:a 10-year follow-up显示文摘 | Sahlin C Sandberg O Gustafson Y | 2008 | Arch intern Med2008，168，3： | 1 |
| 14 | Nucleotide switches in molecular motors: structural analysis of kinesins and myosins 显示文摘 | Sahlin E P Fletterick R J | 2001 | Curr Opin Struct Biol2001，11，6： | 1 |
| 15 | Formation of pinopodes in human endometrium is associated with the concentration of progesterone and progesterone receptors 显示文摘 | Stavreus-Evers A Nikas G Sahlin L | 2001 | Fertil Steril2001，76，4： | 1 |
| 16 | Changes in the Structure of Wa- ter Induced by PAV-1 Flotation Reagent 显示文摘 | A V Sahlin V N Petukhov | 2009 | Coke and Chemistry2009，，： | 1 |
| 17 | Ultraendurance exercise increases the production of reactive oxygen species in isolated mitochondria from human skeletal muscle显示文摘 | Sahlin K Shabalina IG Mattsson CM | 2010 | J Appl Physiol2010，108，4： | 1 |
| 18 | Treatment of idiopathic scle- rosing inflammation of the orbit(myositis) with infliximab 显示文摘 | Sahlin S Lignell B Williams M | 2009 | Acta Ophthalmol2009，87，8： | 1 |
| 19 | NADH in human skeletal muscle during short-term intense exercise显示文摘 | Kent Sahlin | 1985 | Pflügers Archiv European Journal of Physiology1985，，2： | 1 |
| 20 | Goodbye to Tristes Tropes:Ethnography in the Context of Modern World History 显示文摘 | Sahlins M | 1988 | Journal of Modern History1988，65，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员