نتایج جستجو برای: 1260 lunar years

تعداد نتایج: 998433  

2008
Georgiana Y. Kramer Bradley L. Jolliff Clive R. Neal

[1] High-alumina (HA) mare basalts are a unique group of the lunar sample collection. Sample geochemistry indicates that these basalts are derived from sources composed of late-stage cumulates from the Lunar Magma Ocean (LMO). Their aluminous nature suggests their sources contained significant plagioclase, which has implications regarding the efficiency of plagioclase separation from earlier fo...

Journal: :hepatitis monthly 0
derong sun department of gastroenterology, china-japan :union: hospital, jilin university, changchun, pr china wenqian qi department of gastroenterology, china-japan :union: hospital, jilin university, changchun, pr china song wang department of urology, the second hospital, jilin university, changchun, pr china xu wang department of gastroenterology, china-japan :union: hospital, jilin university, changchun, pr china yonggui zhang department of gastroenterology, china-japan :union: hospital, jilin university, changchun, pr china jiangbin wang department of gastroenterology, china-japan :union: hospital, jilin university, changchun, pr china; department of gastroenterology, china-japan :union: hospital, jilin university, changchun, pr china

conclusions cyp27b1-1260 polymorphism is associated with abnormal glucose metabolism in hcv infected patients. hcv infected individuals with cyp27b1-1260 genotype cc appeared to have an increased risk of developing abnormal fpg levels. results in hcv infected patients with abnormal fpg levels, the frequency of the genotype cc was significantly higher than that in patients with normal fpg levels...

2007
F. M. McCubbin H. Nekvasil D. H. Lindsley

Introduction: Magmatic volatiles such as H 2 O, F, Cl, CO 2 , and S play a critical role in physiochemical processes that control thermal stabilities of minerals and melts, magma eruptive processes, and transport of economically important metals. Of these volatiles, water is the dominant magmatic volatile in terrestrial magmas both because of its abundance and its strong effect on physical prop...

1988
James G. Williams Slava G. Turyshev Richard T. Baran Kevin M. Birnbaum Douglas Currie William M. Folkner Gary M. Gutt Hideo Hanada Hamid Hemmati Stephen M. Merkowitz Kenneth L. Nordtvedt Thomas W. Murphy Jürgen Müller Nicolas Rambaux Peter J. Shelus Ruwan Somawardhana Robert Spero

Lunar Laser Ranging studies the Moon’s internal structure and properties by tracking the variations in the orientation and tidal distortion of the Moon as a function of time. Future missions to the Moon’s surface should include new laser ranging instrumentation capable of improved range accuracy. A Planetary Science Decadal Survey White Paper: “Lunar Science and Lunar Laser Ranging” Page 1 of 7...

2006
Laurent Sibille Paul K. Carpenter

Introduction: As NASA turns its exploration ambitions towards the Moon once again, the research and development of new technologies for lunar operations face the challenge of meeting the milestones of a fast-pace schedule, reminiscent of the 1960's Apollo program. While the lunar samples returned by the Apollo and Luna missions have revealed much about the Moon, these priceless materials exist ...

2008
B. A. Cohen T. D. Swindle

Introduction: One of the important outstanding goals of lunar science is understanding the bombardment history of the Moon and calibrating the impact flux curve for extrapolation to the Earth and other terrestrial planets. Obtaining a sample from a carefully-characterized interior melt sheet or a ring massif is a reliable way to tell a single crater's age. A different but complementary approach...

2003
Noah E. PETRO Carlé M. PIETERS

available online at http://meteoritics.org The lunar-wide effects of basin ejecta distribution on the early megaregolith Noah E. PETRO1, 2* and Carlé M. PIETERS1 1Department of Geological Sciences, Brown University, Box 1846, Providence, Rhode Island, 02912, USA 2Now at: Planetary Geodynamics Laboratory, Code 698, NASA Goddard Space Flight Center, Greenbelt, Maryland, 20771, USA *Corresponding ...

2009
T. J. Stubbs D. A. Glenar D. T. Richard

Introduction: When viewing the lunar exosphere there appear to be three major sources of optical scattering that are typically observed: atomic line emissions from the exospheric gases [1]; the relatively bright coronal and zodiacal light (CZL) background [2]; and the putative scattering of sunlight by exospheric dust, which is also referred to as “lunar horizon glow” (LHG) [3]. The lunar exosp...

2014

This Application Note demonstrates the use of the Agilent 1260 Infi nity Analytical SFC Solution for method screening for the separation of enantiomers. To enhance the 1260 Infi nity SFC Solution for method development and screening, a second thermostatted column compartment and two column selection valves were added for column selection, together with a 12-position/13-port valve for solvent se...

2010
Laurence Nyquist Chi-Yu Shih Donald Bogard Akira Yamaguchi

Anorthosites occur ubiquitously within the lunar crust at depths of 3-30 km in apparent confirmation of the Lunar Magma Ocean (LMO) hypothesis [1,5]. We will present recent chronological studies of anorthosites [2] that are relevant both to the LMO hypothesis and also to the lunar cataclysm hypothesis. Old (ca. 4.4 Ga) Sm-Nd ages have been determined for some Apollo 16 anorthosites, and primiti...

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