- A gravitationally lensed water maser in the early Universe
[作者:Impellizzeri, C. M. Violette; McKean, John P.; Castangia, Paola; Roy, Alan L.; Henkel, Christian; Brunthaler, Andreas; Wucknitz, Olaf,期刊:NATURE, 页码:927-929 , 文章类型: 研究论文,,卷期:2008年456-7224]
- Water masers(1-4) are found in dense molecular clouds closely associated with supermassive black holes at the centres of active galaxies. On the basis of the understanding of the local water- maser luminosity function(5)...
- Unconventional superconductivity in Ba0.6K0.4Fe2As2 from inelastic neutron scattering
[作者:Christianson, A. D.; Goremychkin, E. A.; Osborn, R.; Rosenkranz, S.; Lumsden, M. D.; Malliakas, C. D.; Todorov, I. S.; Claus, H.; Chung, D. Y.; Kanatzidis, M. G.; Bewley, R. I.; Guidi, T.,期刊:NATURE, 页码:930-932 , 文章类型: 研究论文,,卷期:2008年456-7224]
- A new family of superconductors containing layers of iron arsenide(1-3) has attracted considerable interest because of their high transition temperatures (T-c), some of which are > 50 K, and because of similarities with ...
- Low-Density Lipoprotein Cholesterol Concentrations and Death Due to Intraparenchymal Hemorrhage The Ibaraki Prefectural Health Study
[作者:Noda, H; Iso, H; Irie, F; Sairenchi, T; Ohtaka, E; Doi, M; Izumi, Y; Ohta, H,期刊:Circulation, 页码:2136-2145 , 文章类型: Article,,卷期:2009年119-16]
- Background-Few studies have examined the association between low levels of low-density lipoprotein (LDL) cholesterol and risk of intraparenchymal hemorrhage.Methods and Results-A total of 30 802 men and 60 417 women, 40 ...
- Influence of Systolic and Diastolic Blood Pressure on the Risk of Incident Atrial Fibrillation in Women
[作者:Conen, D; Tedrow, UB; Koplan, BA; Glynn, RJ; Buring, JE; Albert, CM,期刊:Circulation, 页码:2146-2152 , 文章类型: Article,,卷期:2009年119-16]
- Background - The influence of systolic and diastolic blood pressure (BP) on incident atrial fibrillation (AF) is not well studied among initially healthy, middle-aged women.Methods and Results-A total of 34 221 women par...
- Highly efficient molybdenum-based catalysts for enantioselective alkene metathesis
[作者:Malcolmson, Steven J.; Meek, Simon J.; Sattely, Elizabeth S.; Schrock, Richard R.; Hoveyda, Amir H.,期刊:NATURE, 页码:933-937 , 文章类型: 研究论文,,卷期:2008年456-7224]
- Discovery of efficient catalysts is one of the most compelling objectives of modern chemistry. Chiral catalysts are in particularly high demand, as they facilitate synthesis of enantiomerically enriched small molecules t...
- Parallel adaptations to high temperatures in the Archaean eon
[作者:Boussau, Bastien; Blanquart, Samuel; Necsulea, Anamaria; Lartillot, Nicolas; Gouy, Manolo,期刊:NATURE, 页码:942-U74 , 文章类型: 研究论文,,卷期:2008年456-7224]
- Fossils of organisms dating from the origin and diversification of cellular life are scant and difficult to interpret(1), for this reason alternative means to investigate the ecology of the last universal common ancestor...
- Dietary Intake of Fruits and Vegetables Improves Microvascular Function in Hypertensive Subjects in a Dose-Dependent Manner
[作者:McCall, DO; McGartland, CP; McKinley, MC; Patterson, CC; Sharpe, P; McCance, DR; Young, IS; Woodside, JV,期刊:Circulation, 页码:2153-2160 , 文章类型: Article,,卷期:2009年119-16]
- Background - Observational evidence has consistently linked increased fruit and vegetable consumption with reduced cardiovascular morbidity; however, there is little direct trial evidence to support the concept that frui...
- Vascular Smooth Muscle Cell-Selective Peroxisome Proliferator-Activated Receptor-gamma Deletion Leads to Hypotension
[作者:Chang, L; Villacorta, L; Zhang, JF; Garcia-Barrio, MT; Yang, K; Hamblin, M; Whitesall, SE; D'Alecy, LG; Chen, YE,期刊:Circulation, 页码:2161-2169 , 文章类型: Article,,卷期:2009年119-16]
- Background-Peroxisome proliferator-activated receptor-gamma (PPAR gamma) agonists are commonly used to treat diabetes, although their PPAR gamma-dependent effects transcend their role as insulin sensitizers. Thiazolidine...
- Successful range-expanding plants experience less above-ground and below-ground enemy impact
[作者:Engelkes, Tim; Morrien, Elly; Verhoeven, Koen J. F.; Bezemer, T. Martijn; Biere, Arjen; Harvey, Jeffrey A.; McIntyre, Lauren M.; Tamis, Wil L. M.; van der Putten, Wim H.,期刊:NATURE, 页码:946-948 , 文章类型: 研究论文,,卷期:2008年456-7224]
- Many species are currently moving to higher latitudes and altitudes(1-3). However, little is known about the factors that influence the future performance of range- expanding species in their new habitats. Here we show t...
- Low conservation of gene content in the Drosophila Y chromosome
[作者:Koerich, Leonardo B.; Wang, Xiaoyun; Clark, Andrew G.; Carvalho, Antonio Bernardo,期刊:NATURE, 页码:949-951 , 文章类型: 研究论文,,卷期:2008年456-7224]
- Chromosomal organization is sufficiently evolutionarily stable that large syntenic blocks of genes can be recognized even between species as distantly related as mammals and puffer fish ( 450 million years (Myr) of diver...
- Neuropilin-1 Identifies Endothelial Precursors in Human and Murine Embryonic Stem Cells Before CD34 Expression
[作者:Cimato, T; Beers, J; Ding, SL; Ma, MC; McCoy, JP; Boehm, M; Nabel, EG,期刊:Circulation, 页码:2170-U74 , 文章类型: Article,,卷期:2009年119-16]
- Background-In murine embryonic stem cells, the onset of vascular endothelial growth factor receptor 2 (VEGFR-2) expression identifies endothelial precursors. Undifferentiated human embryonic stem cells express VEGFR-2, a...
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